./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.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.h_Vlunc.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', 'be53c51dc83e5173157f1fa4471313025cf2f600c0bad4f77c441750f4d9f9e8'] 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.h_Vlunc.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 be53c51dc83e5173157f1fa4471313025cf2f600c0bad4f77c441750f4d9f9e8 --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 02:57:35,619 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 02:57:35,731 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-64bit-Automizer_Default.epf [2024-11-07 02:57:35,740 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 02:57:35,740 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 02:57:35,767 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 02:57:35,768 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 02:57:35,768 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 02:57:35,768 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 02:57:35,768 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 02:57:35,768 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 02:57:35,769 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 02:57:35,769 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 02:57:35,769 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 02:57:35,769 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 02:57:35,769 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 02:57:35,769 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 02:57:35,770 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 02:57:35,770 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 02:57:35,770 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 02:57:35,770 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 02:57:35,770 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 02:57:35,770 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 02:57:35,770 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 02:57:35,770 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 02:57:35,770 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 02:57:35,771 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 02:57:35,771 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 02:57:35,771 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 02:57:35,771 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:57:35,771 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 02:57:35,771 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 02:57:35,771 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 02:57:35,771 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 02:57:35,772 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 02:57:35,772 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 02:57:35,772 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 02:57:35,772 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 02:57:35,772 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 02:57:35,772 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 -> be53c51dc83e5173157f1fa4471313025cf2f600c0bad4f77c441750f4d9f9e8 [2024-11-07 02:57:36,051 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 02:57:36,060 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 02:57:36,065 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 02:57:36,066 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 02:57:36,066 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 02:57:36,068 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c [2024-11-07 02:57:37,366 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 02:57:37,605 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 02:57:37,606 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardware-verification-bv/btor2c-lazyMod.h_Vlunc.c [2024-11-07 02:57:37,620 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d66c7e6e8/72fc1af2db0a49bfa56ba2b6951a61f4/FLAG191112d1f [2024-11-07 02:57:37,641 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d66c7e6e8/72fc1af2db0a49bfa56ba2b6951a61f4 [2024-11-07 02:57:37,643 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 02:57:37,645 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 02:57:37,647 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 02:57:37,647 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 02:57:37,651 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 02:57:37,652 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:57:37" (1/1) ... [2024-11-07 02:57:37,655 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5421c88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:37, skipping insertion in model container [2024-11-07 02:57:37,655 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 02:57:37" (1/1) ... [2024-11-07 02:57:37,687 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 02:57:37,831 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.h_Vlunc.c[1247,1260] [2024-11-07 02:57:38,001 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:57:38,021 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 02:57:38,030 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.h_Vlunc.c[1247,1260] [2024-11-07 02:57:38,121 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 02:57:38,136 INFO L204 MainTranslator]: Completed translation [2024-11-07 02:57:38,137 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38 WrapperNode [2024-11-07 02:57:38,138 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 02:57:38,139 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 02:57:38,139 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 02:57:38,139 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 02:57:38,145 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38" (1/1) ... [2024-11-07 02:57:38,162 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38" (1/1) ... [2024-11-07 02:57:38,276 INFO L138 Inliner]: procedures = 17, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 784 [2024-11-07 02:57:38,276 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 02:57:38,277 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 02:57:38,278 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 02:57:38,278 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 02:57:38,286 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38" (1/1) ... [2024-11-07 02:57:38,287 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38" (1/1) ... [2024-11-07 02:57:38,315 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38" (1/1) ... [2024-11-07 02:57:38,366 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 02:57:38,366 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38" (1/1) ... [2024-11-07 02:57:38,366 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38" (1/1) ... [2024-11-07 02:57:38,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38" (1/1) ... [2024-11-07 02:57:38,450 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38" (1/1) ... [2024-11-07 02:57:38,462 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38" (1/1) ... [2024-11-07 02:57:38,476 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38" (1/1) ... [2024-11-07 02:57:38,499 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 02:57:38,500 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 02:57:38,500 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 02:57:38,500 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 02:57:38,501 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38" (1/1) ... [2024-11-07 02:57:38,509 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 02:57:38,522 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:57:38,537 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 02:57:38,541 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 02:57:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 02:57:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 02:57:38,565 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 02:57:38,565 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 02:57:38,755 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 02:57:38,757 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 02:57:39,865 INFO L? ?]: Removed 472 outVars from TransFormulas that were not future-live. [2024-11-07 02:57:39,867 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 02:57:39,880 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 02:57:39,880 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 02:57:39,881 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:57:39 BoogieIcfgContainer [2024-11-07 02:57:39,881 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 02:57:39,883 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 02:57:39,883 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 02:57:39,888 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 02:57:39,889 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 02:57:37" (1/3) ... [2024-11-07 02:57:39,890 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5637caa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:57:39, skipping insertion in model container [2024-11-07 02:57:39,890 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 02:57:38" (2/3) ... [2024-11-07 02:57:39,891 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5637caa2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 02:57:39, skipping insertion in model container [2024-11-07 02:57:39,891 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 02:57:39" (3/3) ... [2024-11-07 02:57:39,892 INFO L112 eAbstractionObserver]: Analyzing ICFG btor2c-lazyMod.h_Vlunc.c [2024-11-07 02:57:39,906 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 02:57:39,907 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 02:57:39,964 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 02:57:39,975 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;@7e1e8308, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 02:57:39,975 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 02:57:39,982 INFO L276 IsEmpty]: Start isEmpty. Operand has 178 states, 176 states have (on average 1.4943181818181819) internal successors, (263), 177 states have internal predecessors, (263), 0 states have call successors, (0), 0 states 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 02:57:39,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2024-11-07 02:57:39,992 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:39,993 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] [2024-11-07 02:57:39,993 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:39,997 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:39,998 INFO L85 PathProgramCache]: Analyzing trace with hash -1409265701, now seen corresponding path program 1 times [2024-11-07 02:57:40,006 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:40,007 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [127622965] [2024-11-07 02:57:40,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:40,007 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:40,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:41,149 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 02:57:41,150 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:41,152 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [127622965] [2024-11-07 02:57:41,153 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [127622965] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:41,154 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:41,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:57:41,156 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043155231] [2024-11-07 02:57:41,156 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:41,160 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:57:41,161 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:41,178 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:57:41,179 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:57:41,183 INFO L87 Difference]: Start difference. First operand has 178 states, 176 states have (on average 1.4943181818181819) internal successors, (263), 177 states have internal predecessors, (263), 0 states have call successors, (0), 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 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 02:57:41,250 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:41,251 INFO L93 Difference]: Finished difference Result 329 states and 489 transitions. [2024-11-07 02:57:41,253 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:57:41,254 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 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 69 [2024-11-07 02:57:41,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:41,263 INFO L225 Difference]: With dead ends: 329 [2024-11-07 02:57:41,265 INFO L226 Difference]: Without dead ends: 177 [2024-11-07 02:57:41,268 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 02:57:41,270 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 0 mSDsluCounter, 508 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 765 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 02:57:41,270 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 765 Invalid, 11 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:41,282 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 177 states. [2024-11-07 02:57:41,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 177 to 177. [2024-11-07 02:57:41,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177 states, 176 states have (on average 1.4829545454545454) internal successors, (261), 176 states have internal predecessors, (261), 0 states have call successors, (0), 0 states 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 02:57:41,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177 states to 177 states and 261 transitions. [2024-11-07 02:57:41,314 INFO L78 Accepts]: Start accepts. Automaton has 177 states and 261 transitions. Word has length 69 [2024-11-07 02:57:41,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:41,316 INFO L471 AbstractCegarLoop]: Abstraction has 177 states and 261 transitions. [2024-11-07 02:57:41,317 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 17.25) internal successors, (69), 4 states have internal predecessors, (69), 0 states have call successors, (0), 0 states 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 02:57:41,317 INFO L276 IsEmpty]: Start isEmpty. Operand 177 states and 261 transitions. [2024-11-07 02:57:41,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-07 02:57:41,319 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:41,319 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] [2024-11-07 02:57:41,319 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 02:57:41,319 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:41,320 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:41,320 INFO L85 PathProgramCache]: Analyzing trace with hash -735868202, now seen corresponding path program 1 times [2024-11-07 02:57:41,321 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:41,321 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [710351265] [2024-11-07 02:57:41,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:41,321 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:41,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:41,747 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 02:57:41,747 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:41,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [710351265] [2024-11-07 02:57:41,748 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [710351265] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:41,748 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:41,748 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:41,748 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29254035] [2024-11-07 02:57:41,748 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:41,749 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:41,749 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:41,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:41,750 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:41,750 INFO L87 Difference]: Start difference. First operand 177 states and 261 transitions. Second operand has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states 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 02:57:42,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:42,221 INFO L93 Difference]: Finished difference Result 659 states and 974 transitions. [2024-11-07 02:57:42,222 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:57:42,222 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 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 70 [2024-11-07 02:57:42,223 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:42,225 INFO L225 Difference]: With dead ends: 659 [2024-11-07 02:57:42,227 INFO L226 Difference]: Without dead ends: 320 [2024-11-07 02:57:42,229 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2024-11-07 02:57:42,232 INFO L432 NwaCegarLoop]: 259 mSDtfsCounter, 1187 mSDsluCounter, 626 mSDsCounter, 0 mSdLazyCounter, 214 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1187 SdHoareTripleChecker+Valid, 885 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 214 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:42,232 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1187 Valid, 885 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 214 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 02:57:42,233 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2024-11-07 02:57:42,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 215. [2024-11-07 02:57:42,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 214 states have (on average 1.4813084112149533) internal successors, (317), 214 states have internal predecessors, (317), 0 states have call successors, (0), 0 states 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 02:57:42,254 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 317 transitions. [2024-11-07 02:57:42,254 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 317 transitions. Word has length 70 [2024-11-07 02:57:42,254 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:42,255 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 317 transitions. [2024-11-07 02:57:42,255 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.666666666666666) internal successors, (70), 6 states have internal predecessors, (70), 0 states have call successors, (0), 0 states 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 02:57:42,255 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 317 transitions. [2024-11-07 02:57:42,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2024-11-07 02:57:42,260 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:42,260 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] [2024-11-07 02:57:42,260 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 02:57:42,261 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:42,261 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:42,261 INFO L85 PathProgramCache]: Analyzing trace with hash -1484247349, now seen corresponding path program 1 times [2024-11-07 02:57:42,261 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:42,261 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2063676572] [2024-11-07 02:57:42,261 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:42,261 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:42,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:42,633 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 02:57:42,633 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:42,633 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2063676572] [2024-11-07 02:57:42,633 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2063676572] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:42,633 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:42,634 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:42,634 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1405075639] [2024-11-07 02:57:42,634 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:42,634 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:42,634 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:42,635 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:42,635 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:42,635 INFO L87 Difference]: Start difference. First operand 215 states and 317 transitions. Second operand has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states 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 02:57:43,088 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:43,088 INFO L93 Difference]: Finished difference Result 495 states and 729 transitions. [2024-11-07 02:57:43,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:57:43,088 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 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 71 [2024-11-07 02:57:43,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:43,090 INFO L225 Difference]: With dead ends: 495 [2024-11-07 02:57:43,091 INFO L226 Difference]: Without dead ends: 344 [2024-11-07 02:57:43,091 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:43,092 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 649 mSDsluCounter, 548 mSDsCounter, 0 mSdLazyCounter, 360 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 649 SdHoareTripleChecker+Valid, 746 SdHoareTripleChecker+Invalid, 366 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 360 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:43,092 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [649 Valid, 746 Invalid, 366 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 360 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-07 02:57:43,093 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-07 02:57:43,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 247. [2024-11-07 02:57:43,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 247 states, 246 states have (on average 1.4796747967479675) internal successors, (364), 246 states have internal predecessors, (364), 0 states have call successors, (0), 0 states 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 02:57:43,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 364 transitions. [2024-11-07 02:57:43,102 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 364 transitions. Word has length 71 [2024-11-07 02:57:43,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:43,102 INFO L471 AbstractCegarLoop]: Abstraction has 247 states and 364 transitions. [2024-11-07 02:57:43,103 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 11.833333333333334) internal successors, (71), 6 states have internal predecessors, (71), 0 states have call successors, (0), 0 states 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 02:57:43,103 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 364 transitions. [2024-11-07 02:57:43,104 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 73 [2024-11-07 02:57:43,104 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:43,104 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] [2024-11-07 02:57:43,104 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 02:57:43,105 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:43,105 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:43,105 INFO L85 PathProgramCache]: Analyzing trace with hash -456912466, now seen corresponding path program 1 times [2024-11-07 02:57:43,105 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:43,105 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [88706431] [2024-11-07 02:57:43,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:43,106 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:43,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:43,434 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 02:57:43,435 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:43,435 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [88706431] [2024-11-07 02:57:43,435 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [88706431] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:43,435 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:43,435 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:43,435 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1328755553] [2024-11-07 02:57:43,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:43,436 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:43,436 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:43,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:43,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:43,437 INFO L87 Difference]: Start difference. First operand 247 states and 364 transitions. Second operand has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 02:57:43,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:43,736 INFO L93 Difference]: Finished difference Result 495 states and 728 transitions. [2024-11-07 02:57:43,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:57:43,737 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 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 72 [2024-11-07 02:57:43,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:43,739 INFO L225 Difference]: With dead ends: 495 [2024-11-07 02:57:43,739 INFO L226 Difference]: Without dead ends: 344 [2024-11-07 02:57:43,739 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:43,740 INFO L432 NwaCegarLoop]: 199 mSDtfsCounter, 787 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 246 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 787 SdHoareTripleChecker+Valid, 633 SdHoareTripleChecker+Invalid, 252 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 246 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:43,740 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [787 Valid, 633 Invalid, 252 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 246 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:57:43,741 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 344 states. [2024-11-07 02:57:43,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 344 to 263. [2024-11-07 02:57:43,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 263 states, 262 states have (on average 1.4770992366412214) internal successors, (387), 262 states have internal predecessors, (387), 0 states have call successors, (0), 0 states 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 02:57:43,753 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 263 states to 263 states and 387 transitions. [2024-11-07 02:57:43,753 INFO L78 Accepts]: Start accepts. Automaton has 263 states and 387 transitions. Word has length 72 [2024-11-07 02:57:43,754 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:43,754 INFO L471 AbstractCegarLoop]: Abstraction has 263 states and 387 transitions. [2024-11-07 02:57:43,754 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.0) internal successors, (72), 6 states have internal predecessors, (72), 0 states have call successors, (0), 0 states 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 02:57:43,754 INFO L276 IsEmpty]: Start isEmpty. Operand 263 states and 387 transitions. [2024-11-07 02:57:43,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 74 [2024-11-07 02:57:43,755 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:43,755 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] [2024-11-07 02:57:43,755 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 02:57:43,755 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:43,756 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:43,757 INFO L85 PathProgramCache]: Analyzing trace with hash -301508281, now seen corresponding path program 1 times [2024-11-07 02:57:43,757 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:43,757 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [723750776] [2024-11-07 02:57:43,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:43,758 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:43,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:44,005 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 02:57:44,006 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:44,006 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [723750776] [2024-11-07 02:57:44,006 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [723750776] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:44,006 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:44,006 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 02:57:44,006 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [627520458] [2024-11-07 02:57:44,006 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:44,006 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 02:57:44,007 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:44,009 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 02:57:44,009 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 02:57:44,010 INFO L87 Difference]: Start difference. First operand 263 states and 387 transitions. Second operand has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 02:57:44,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:44,043 INFO L93 Difference]: Finished difference Result 416 states and 613 transitions. [2024-11-07 02:57:44,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 02:57:44,043 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 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 73 [2024-11-07 02:57:44,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:44,045 INFO L225 Difference]: With dead ends: 416 [2024-11-07 02:57:44,045 INFO L226 Difference]: Without dead ends: 265 [2024-11-07 02:57:44,046 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 02:57:44,047 INFO L432 NwaCegarLoop]: 257 mSDtfsCounter, 0 mSDsluCounter, 504 mSDsCounter, 0 mSdLazyCounter, 15 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 761 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 02:57:44,047 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 761 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 15 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:44,048 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2024-11-07 02:57:44,056 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 265. [2024-11-07 02:57:44,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 265 states, 264 states have (on average 1.4734848484848484) internal successors, (389), 264 states have internal predecessors, (389), 0 states have call successors, (0), 0 states 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 02:57:44,059 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 389 transitions. [2024-11-07 02:57:44,059 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 389 transitions. Word has length 73 [2024-11-07 02:57:44,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:44,061 INFO L471 AbstractCegarLoop]: Abstraction has 265 states and 389 transitions. [2024-11-07 02:57:44,061 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.25) internal successors, (73), 4 states have internal predecessors, (73), 0 states have call successors, (0), 0 states 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 02:57:44,061 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 389 transitions. [2024-11-07 02:57:44,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2024-11-07 02:57:44,065 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:44,065 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] [2024-11-07 02:57:44,065 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 02:57:44,065 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:44,065 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:44,066 INFO L85 PathProgramCache]: Analyzing trace with hash -1854787645, now seen corresponding path program 1 times [2024-11-07 02:57:44,066 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:44,066 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1221101909] [2024-11-07 02:57:44,066 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:44,066 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:44,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:44,705 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 02:57:44,706 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:44,706 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1221101909] [2024-11-07 02:57:44,706 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1221101909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:44,706 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:44,706 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:44,706 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1597725423] [2024-11-07 02:57:44,706 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:44,707 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:44,707 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:44,707 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:44,708 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:44,708 INFO L87 Difference]: Start difference. First operand 265 states and 389 transitions. Second operand has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 02:57:44,765 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:44,766 INFO L93 Difference]: Finished difference Result 423 states and 622 transitions. [2024-11-07 02:57:44,766 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:57:44,766 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 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 74 [2024-11-07 02:57:44,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:44,769 INFO L225 Difference]: With dead ends: 423 [2024-11-07 02:57:44,770 INFO L226 Difference]: Without dead ends: 270 [2024-11-07 02:57:44,771 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:44,772 INFO L432 NwaCegarLoop]: 253 mSDtfsCounter, 1 mSDsluCounter, 996 mSDsCounter, 0 mSdLazyCounter, 45 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1 SdHoareTripleChecker+Valid, 1249 SdHoareTripleChecker+Invalid, 46 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 45 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:44,774 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1 Valid, 1249 Invalid, 46 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 45 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:44,775 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2024-11-07 02:57:44,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 270. [2024-11-07 02:57:44,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 270 states, 269 states have (on average 1.4684014869888475) internal successors, (395), 269 states have internal predecessors, (395), 0 states have call successors, (0), 0 states 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 02:57:44,787 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 270 states to 270 states and 395 transitions. [2024-11-07 02:57:44,787 INFO L78 Accepts]: Start accepts. Automaton has 270 states and 395 transitions. Word has length 74 [2024-11-07 02:57:44,787 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:44,788 INFO L471 AbstractCegarLoop]: Abstraction has 270 states and 395 transitions. [2024-11-07 02:57:44,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.333333333333334) internal successors, (74), 6 states have internal predecessors, (74), 0 states have call successors, (0), 0 states 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 02:57:44,789 INFO L276 IsEmpty]: Start isEmpty. Operand 270 states and 395 transitions. [2024-11-07 02:57:44,790 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-07 02:57:44,790 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:44,790 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] [2024-11-07 02:57:44,790 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 02:57:44,791 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:44,791 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:44,791 INFO L85 PathProgramCache]: Analyzing trace with hash -754954930, now seen corresponding path program 1 times [2024-11-07 02:57:44,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:44,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1474697399] [2024-11-07 02:57:44,792 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:44,792 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:44,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:45,119 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 02:57:45,120 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:45,120 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1474697399] [2024-11-07 02:57:45,120 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1474697399] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:45,120 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:45,120 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:57:45,120 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1866960115] [2024-11-07 02:57:45,120 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:45,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:57:45,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:45,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:57:45,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:45,121 INFO L87 Difference]: Start difference. First operand 270 states and 395 transitions. Second operand has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 02:57:45,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:45,183 INFO L93 Difference]: Finished difference Result 463 states and 677 transitions. [2024-11-07 02:57:45,183 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:57:45,183 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-07 02:57:45,184 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:45,185 INFO L225 Difference]: With dead ends: 463 [2024-11-07 02:57:45,185 INFO L226 Difference]: Without dead ends: 298 [2024-11-07 02:57:45,186 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:45,186 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 12 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:45,186 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1495 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:45,187 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2024-11-07 02:57:45,193 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 298. [2024-11-07 02:57:45,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 298 states, 297 states have (on average 1.4579124579124578) internal successors, (433), 297 states have internal predecessors, (433), 0 states have call successors, (0), 0 states 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 02:57:45,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 433 transitions. [2024-11-07 02:57:45,195 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 433 transitions. Word has length 75 [2024-11-07 02:57:45,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:45,195 INFO L471 AbstractCegarLoop]: Abstraction has 298 states and 433 transitions. [2024-11-07 02:57:45,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.714285714285714) internal successors, (75), 7 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 02:57:45,195 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 433 transitions. [2024-11-07 02:57:45,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2024-11-07 02:57:45,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:45,196 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] [2024-11-07 02:57:45,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 02:57:45,196 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:45,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:45,197 INFO L85 PathProgramCache]: Analyzing trace with hash -609784811, now seen corresponding path program 1 times [2024-11-07 02:57:45,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:45,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832107181] [2024-11-07 02:57:45,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:45,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:45,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:45,756 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 02:57:45,756 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:45,756 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832107181] [2024-11-07 02:57:45,756 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [832107181] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:45,756 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:45,756 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:45,757 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1112636308] [2024-11-07 02:57:45,757 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:45,757 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:45,757 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:45,757 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:45,758 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:45,758 INFO L87 Difference]: Start difference. First operand 298 states and 433 transitions. Second operand has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 02:57:45,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:45,846 INFO L93 Difference]: Finished difference Result 491 states and 712 transitions. [2024-11-07 02:57:45,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:57:45,847 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 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 75 [2024-11-07 02:57:45,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:45,849 INFO L225 Difference]: With dead ends: 491 [2024-11-07 02:57:45,849 INFO L226 Difference]: Without dead ends: 314 [2024-11-07 02:57:45,850 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:57:45,850 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 212 mSDsluCounter, 727 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 973 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:45,850 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 973 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:45,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 314 states. [2024-11-07 02:57:45,861 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 314 to 314. [2024-11-07 02:57:45,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 314 states, 313 states have (on average 1.4472843450479234) internal successors, (453), 313 states have internal predecessors, (453), 0 states have call successors, (0), 0 states 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 02:57:45,864 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 314 states to 314 states and 453 transitions. [2024-11-07 02:57:45,864 INFO L78 Accepts]: Start accepts. Automaton has 314 states and 453 transitions. Word has length 75 [2024-11-07 02:57:45,865 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:45,865 INFO L471 AbstractCegarLoop]: Abstraction has 314 states and 453 transitions. [2024-11-07 02:57:45,865 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 12.5) internal successors, (75), 6 states have internal predecessors, (75), 0 states have call successors, (0), 0 states 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 02:57:45,865 INFO L276 IsEmpty]: Start isEmpty. Operand 314 states and 453 transitions. [2024-11-07 02:57:45,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-07 02:57:45,866 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:45,866 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] [2024-11-07 02:57:45,866 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 02:57:45,866 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:45,867 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:45,867 INFO L85 PathProgramCache]: Analyzing trace with hash 1083525219, now seen corresponding path program 1 times [2024-11-07 02:57:45,867 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:45,867 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [896837964] [2024-11-07 02:57:45,867 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:45,867 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:45,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:46,132 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 02:57:46,133 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:46,133 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [896837964] [2024-11-07 02:57:46,133 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [896837964] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:46,133 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:46,133 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:57:46,134 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1392308030] [2024-11-07 02:57:46,134 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:46,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:57:46,134 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:46,135 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:57:46,135 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:46,135 INFO L87 Difference]: Start difference. First operand 314 states and 453 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 02:57:46,206 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:46,207 INFO L93 Difference]: Finished difference Result 577 states and 831 transitions. [2024-11-07 02:57:46,207 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:57:46,207 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-07 02:57:46,208 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:46,209 INFO L225 Difference]: With dead ends: 577 [2024-11-07 02:57:46,209 INFO L226 Difference]: Without dead ends: 352 [2024-11-07 02:57:46,210 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:46,210 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 12 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:46,210 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1495 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:46,211 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 352 states. [2024-11-07 02:57:46,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 352 to 352. [2024-11-07 02:57:46,222 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 352 states, 351 states have (on average 1.435897435897436) internal successors, (504), 351 states have internal predecessors, (504), 0 states have call successors, (0), 0 states 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 02:57:46,227 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 352 states to 352 states and 504 transitions. [2024-11-07 02:57:46,228 INFO L78 Accepts]: Start accepts. Automaton has 352 states and 504 transitions. Word has length 76 [2024-11-07 02:57:46,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:46,228 INFO L471 AbstractCegarLoop]: Abstraction has 352 states and 504 transitions. [2024-11-07 02:57:46,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 02:57:46,228 INFO L276 IsEmpty]: Start isEmpty. Operand 352 states and 504 transitions. [2024-11-07 02:57:46,229 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-07 02:57:46,229 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:46,229 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] [2024-11-07 02:57:46,230 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 02:57:46,230 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:46,230 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:46,230 INFO L85 PathProgramCache]: Analyzing trace with hash -1855914141, now seen corresponding path program 1 times [2024-11-07 02:57:46,230 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:46,230 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940756744] [2024-11-07 02:57:46,230 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:46,230 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:46,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:46,442 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 02:57:46,443 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:46,444 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940756744] [2024-11-07 02:57:46,444 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940756744] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:46,444 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:46,444 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:46,444 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [542593641] [2024-11-07 02:57:46,444 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:46,444 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:46,444 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:46,445 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:46,445 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:46,445 INFO L87 Difference]: Start difference. First operand 352 states and 504 transitions. Second operand has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 02:57:46,518 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:46,518 INFO L93 Difference]: Finished difference Result 616 states and 878 transitions. [2024-11-07 02:57:46,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:46,519 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-07 02:57:46,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:46,521 INFO L225 Difference]: With dead ends: 616 [2024-11-07 02:57:46,521 INFO L226 Difference]: Without dead ends: 400 [2024-11-07 02:57:46,521 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 02:57:46,522 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 571 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 571 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:46,522 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [571 Valid, 744 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:46,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 400 states. [2024-11-07 02:57:46,529 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 400 to 344. [2024-11-07 02:57:46,530 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 344 states, 343 states have (on average 1.434402332361516) internal successors, (492), 343 states have internal predecessors, (492), 0 states have call successors, (0), 0 states 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 02:57:46,531 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 492 transitions. [2024-11-07 02:57:46,531 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 492 transitions. Word has length 76 [2024-11-07 02:57:46,532 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:46,532 INFO L471 AbstractCegarLoop]: Abstraction has 344 states and 492 transitions. [2024-11-07 02:57:46,532 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.2) internal successors, (76), 5 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 02:57:46,532 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 492 transitions. [2024-11-07 02:57:46,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 77 [2024-11-07 02:57:46,534 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:46,534 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] [2024-11-07 02:57:46,534 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-07 02:57:46,534 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:46,535 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:46,535 INFO L85 PathProgramCache]: Analyzing trace with hash 1865800298, now seen corresponding path program 1 times [2024-11-07 02:57:46,535 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:46,535 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2024434567] [2024-11-07 02:57:46,535 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:46,535 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:46,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:47,121 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 02:57:47,121 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:47,121 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2024434567] [2024-11-07 02:57:47,121 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2024434567] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:47,121 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:47,121 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:57:47,122 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1495204937] [2024-11-07 02:57:47,122 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:47,122 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:57:47,122 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:47,123 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:57:47,123 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:47,123 INFO L87 Difference]: Start difference. First operand 344 states and 492 transitions. Second operand has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 02:57:47,237 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:47,238 INFO L93 Difference]: Finished difference Result 590 states and 843 transitions. [2024-11-07 02:57:47,238 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:57:47,238 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 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 76 [2024-11-07 02:57:47,239 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:47,240 INFO L225 Difference]: With dead ends: 590 [2024-11-07 02:57:47,241 INFO L226 Difference]: Without dead ends: 368 [2024-11-07 02:57:47,243 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:47,245 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 221 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 221 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:47,245 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [221 Valid, 1212 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:47,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 368 states. [2024-11-07 02:57:47,256 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 368 to 368. [2024-11-07 02:57:47,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 368 states, 367 states have (on average 1.422343324250681) internal successors, (522), 367 states have internal predecessors, (522), 0 states have call successors, (0), 0 states 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 02:57:47,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 368 states to 368 states and 522 transitions. [2024-11-07 02:57:47,258 INFO L78 Accepts]: Start accepts. Automaton has 368 states and 522 transitions. Word has length 76 [2024-11-07 02:57:47,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:47,259 INFO L471 AbstractCegarLoop]: Abstraction has 368 states and 522 transitions. [2024-11-07 02:57:47,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 10.857142857142858) internal successors, (76), 7 states have internal predecessors, (76), 0 states have call successors, (0), 0 states 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 02:57:47,260 INFO L276 IsEmpty]: Start isEmpty. Operand 368 states and 522 transitions. [2024-11-07 02:57:47,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 02:57:47,261 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:47,261 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] [2024-11-07 02:57:47,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-07 02:57:47,262 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:47,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:47,262 INFO L85 PathProgramCache]: Analyzing trace with hash -534118866, now seen corresponding path program 1 times [2024-11-07 02:57:47,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:47,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691958768] [2024-11-07 02:57:47,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:47,263 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:47,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:47,480 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 02:57:47,480 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:47,480 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691958768] [2024-11-07 02:57:47,480 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691958768] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:47,481 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:47,481 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:47,481 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [832838308] [2024-11-07 02:57:47,481 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:47,481 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:47,481 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:47,482 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:47,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:47,482 INFO L87 Difference]: Start difference. First operand 368 states and 522 transitions. Second operand has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 02:57:47,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:47,554 INFO L93 Difference]: Finished difference Result 649 states and 914 transitions. [2024-11-07 02:57:47,556 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:47,556 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-07 02:57:47,556 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:47,558 INFO L225 Difference]: With dead ends: 649 [2024-11-07 02:57:47,558 INFO L226 Difference]: Without dead ends: 390 [2024-11-07 02:57:47,559 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 02:57:47,559 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 536 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:47,560 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 744 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:47,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2024-11-07 02:57:47,568 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 342. [2024-11-07 02:57:47,569 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 342 states, 341 states have (on average 1.4193548387096775) internal successors, (484), 341 states have internal predecessors, (484), 0 states have call successors, (0), 0 states 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 02:57:47,570 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 342 states to 342 states and 484 transitions. [2024-11-07 02:57:47,571 INFO L78 Accepts]: Start accepts. Automaton has 342 states and 484 transitions. Word has length 77 [2024-11-07 02:57:47,571 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:47,571 INFO L471 AbstractCegarLoop]: Abstraction has 342 states and 484 transitions. [2024-11-07 02:57:47,571 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.4) internal successors, (77), 5 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 02:57:47,571 INFO L276 IsEmpty]: Start isEmpty. Operand 342 states and 484 transitions. [2024-11-07 02:57:47,572 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 02:57:47,574 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:47,574 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] [2024-11-07 02:57:47,574 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 02:57:47,574 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:47,575 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:47,575 INFO L85 PathProgramCache]: Analyzing trace with hash 1431766830, now seen corresponding path program 1 times [2024-11-07 02:57:47,575 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:47,575 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1117303903] [2024-11-07 02:57:47,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:47,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:47,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:47,879 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 02:57:47,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:47,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1117303903] [2024-11-07 02:57:47,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1117303903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:47,880 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:47,880 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:57:47,880 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1113229306] [2024-11-07 02:57:47,880 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:47,881 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:57:47,881 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:47,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:57:47,881 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:47,881 INFO L87 Difference]: Start difference. First operand 342 states and 484 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 02:57:47,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:47,940 INFO L93 Difference]: Finished difference Result 649 states and 918 transitions. [2024-11-07 02:57:47,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:57:47,941 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-07 02:57:47,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:47,943 INFO L225 Difference]: With dead ends: 649 [2024-11-07 02:57:47,943 INFO L226 Difference]: Without dead ends: 380 [2024-11-07 02:57:47,944 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:47,944 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 13 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 13 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:47,944 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [13 Valid, 1495 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:47,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2024-11-07 02:57:47,954 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 380. [2024-11-07 02:57:47,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 380 states, 379 states have (on average 1.4142480211081794) internal successors, (536), 379 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 02:57:47,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 380 states to 380 states and 536 transitions. [2024-11-07 02:57:47,957 INFO L78 Accepts]: Start accepts. Automaton has 380 states and 536 transitions. Word has length 77 [2024-11-07 02:57:47,958 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:47,958 INFO L471 AbstractCegarLoop]: Abstraction has 380 states and 536 transitions. [2024-11-07 02:57:47,958 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 02:57:47,958 INFO L276 IsEmpty]: Start isEmpty. Operand 380 states and 536 transitions. [2024-11-07 02:57:47,960 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 78 [2024-11-07 02:57:47,962 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:47,962 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] [2024-11-07 02:57:47,962 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-07 02:57:47,962 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:47,963 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:47,963 INFO L85 PathProgramCache]: Analyzing trace with hash 1009384565, now seen corresponding path program 1 times [2024-11-07 02:57:47,963 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:47,963 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2134897546] [2024-11-07 02:57:47,963 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:47,963 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:48,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:48,475 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 02:57:48,476 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:48,476 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2134897546] [2024-11-07 02:57:48,476 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2134897546] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:48,476 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:48,476 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:57:48,476 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1605551364] [2024-11-07 02:57:48,477 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:48,477 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:57:48,477 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:48,477 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:57:48,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:48,478 INFO L87 Difference]: Start difference. First operand 380 states and 536 transitions. Second operand has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 02:57:48,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:48,593 INFO L93 Difference]: Finished difference Result 672 states and 948 transitions. [2024-11-07 02:57:48,594 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:57:48,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 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 77 [2024-11-07 02:57:48,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:48,596 INFO L225 Difference]: With dead ends: 672 [2024-11-07 02:57:48,596 INFO L226 Difference]: Without dead ends: 404 [2024-11-07 02:57:48,597 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:48,597 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 230 mSDsluCounter, 966 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 230 SdHoareTripleChecker+Valid, 1212 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:48,597 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [230 Valid, 1212 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:48,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 404 states. [2024-11-07 02:57:48,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 404 to 404. [2024-11-07 02:57:48,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 404 states, 403 states have (on average 1.4094292803970223) internal successors, (568), 403 states have internal predecessors, (568), 0 states have call successors, (0), 0 states 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 02:57:48,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 404 states to 404 states and 568 transitions. [2024-11-07 02:57:48,607 INFO L78 Accepts]: Start accepts. Automaton has 404 states and 568 transitions. Word has length 77 [2024-11-07 02:57:48,607 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:48,607 INFO L471 AbstractCegarLoop]: Abstraction has 404 states and 568 transitions. [2024-11-07 02:57:48,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.0) internal successors, (77), 7 states have internal predecessors, (77), 0 states have call successors, (0), 0 states 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 02:57:48,607 INFO L276 IsEmpty]: Start isEmpty. Operand 404 states and 568 transitions. [2024-11-07 02:57:48,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 02:57:48,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:48,608 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] [2024-11-07 02:57:48,608 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-07 02:57:48,608 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:48,609 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:48,609 INFO L85 PathProgramCache]: Analyzing trace with hash 192887573, now seen corresponding path program 1 times [2024-11-07 02:57:48,609 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:48,609 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [457950190] [2024-11-07 02:57:48,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:48,609 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:48,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:48,851 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 02:57:48,851 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:48,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [457950190] [2024-11-07 02:57:48,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [457950190] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:48,852 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:48,852 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:48,852 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1933601231] [2024-11-07 02:57:48,852 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:48,852 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:48,852 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:48,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:48,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:48,853 INFO L87 Difference]: Start difference. First operand 404 states and 568 transitions. Second operand has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:57:48,927 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:48,927 INFO L93 Difference]: Finished difference Result 737 states and 1026 transitions. [2024-11-07 02:57:48,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:48,928 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-07 02:57:48,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:48,930 INFO L225 Difference]: With dead ends: 737 [2024-11-07 02:57:48,930 INFO L226 Difference]: Without dead ends: 426 [2024-11-07 02:57:48,931 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 02:57:48,931 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 524 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 524 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:48,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [524 Valid, 744 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:48,932 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2024-11-07 02:57:48,941 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 378. [2024-11-07 02:57:48,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 378 states, 377 states have (on average 1.4005305039787799) internal successors, (528), 377 states have internal predecessors, (528), 0 states have call successors, (0), 0 states 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 02:57:48,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 378 states to 378 states and 528 transitions. [2024-11-07 02:57:48,944 INFO L78 Accepts]: Start accepts. Automaton has 378 states and 528 transitions. Word has length 78 [2024-11-07 02:57:48,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:48,944 INFO L471 AbstractCegarLoop]: Abstraction has 378 states and 528 transitions. [2024-11-07 02:57:48,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.6) internal successors, (78), 5 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:57:48,944 INFO L276 IsEmpty]: Start isEmpty. Operand 378 states and 528 transitions. [2024-11-07 02:57:48,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 02:57:48,945 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:48,945 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] [2024-11-07 02:57:48,946 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-07 02:57:48,946 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:48,946 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:48,946 INFO L85 PathProgramCache]: Analyzing trace with hash -1661001049, now seen corresponding path program 1 times [2024-11-07 02:57:48,946 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:48,947 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533087732] [2024-11-07 02:57:48,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:48,947 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:48,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:49,225 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 02:57:49,225 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:49,225 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533087732] [2024-11-07 02:57:49,225 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533087732] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:49,225 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:49,226 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:57:49,226 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1968458365] [2024-11-07 02:57:49,226 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:49,226 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:57:49,226 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:49,226 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:57:49,227 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:49,227 INFO L87 Difference]: Start difference. First operand 378 states and 528 transitions. Second operand has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:57:49,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:49,293 INFO L93 Difference]: Finished difference Result 737 states and 1028 transitions. [2024-11-07 02:57:49,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:57:49,293 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-07 02:57:49,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:49,295 INFO L225 Difference]: With dead ends: 737 [2024-11-07 02:57:49,295 INFO L226 Difference]: Without dead ends: 416 [2024-11-07 02:57:49,296 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:49,299 INFO L432 NwaCegarLoop]: 252 mSDtfsCounter, 12 mSDsluCounter, 1243 mSDsCounter, 0 mSdLazyCounter, 58 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1495 SdHoareTripleChecker+Invalid, 59 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 58 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:49,299 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1495 Invalid, 59 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 58 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:49,300 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2024-11-07 02:57:49,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 416. [2024-11-07 02:57:49,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 416 states, 415 states have (on average 1.3951807228915662) internal successors, (579), 415 states have internal predecessors, (579), 0 states have call successors, (0), 0 states 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 02:57:49,310 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 579 transitions. [2024-11-07 02:57:49,310 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 579 transitions. Word has length 78 [2024-11-07 02:57:49,310 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:49,311 INFO L471 AbstractCegarLoop]: Abstraction has 416 states and 579 transitions. [2024-11-07 02:57:49,311 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.142857142857142) internal successors, (78), 7 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:57:49,311 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 579 transitions. [2024-11-07 02:57:49,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 79 [2024-11-07 02:57:49,312 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:49,312 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] [2024-11-07 02:57:49,312 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-07 02:57:49,313 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:49,313 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:49,313 INFO L85 PathProgramCache]: Analyzing trace with hash 1275997504, now seen corresponding path program 1 times [2024-11-07 02:57:49,313 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:49,313 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [572016761] [2024-11-07 02:57:49,313 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:49,314 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:49,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:49,753 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 02:57:49,753 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:49,753 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [572016761] [2024-11-07 02:57:49,753 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [572016761] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:49,753 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:49,754 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:49,754 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2107542104] [2024-11-07 02:57:49,754 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:49,754 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:49,754 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:49,754 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:49,755 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:49,755 INFO L87 Difference]: Start difference. First operand 416 states and 579 transitions. Second operand has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:57:49,843 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:49,844 INFO L93 Difference]: Finished difference Result 760 states and 1056 transitions. [2024-11-07 02:57:49,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:57:49,844 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 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 78 [2024-11-07 02:57:49,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:49,846 INFO L225 Difference]: With dead ends: 760 [2024-11-07 02:57:49,846 INFO L226 Difference]: Without dead ends: 440 [2024-11-07 02:57:49,847 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:57:49,848 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 238 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:49,848 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 972 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:49,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2024-11-07 02:57:49,857 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 440. [2024-11-07 02:57:49,859 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 440 states, 439 states have (on average 1.387243735763098) internal successors, (609), 439 states have internal predecessors, (609), 0 states have call successors, (0), 0 states 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 02:57:49,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 440 states to 440 states and 609 transitions. [2024-11-07 02:57:49,861 INFO L78 Accepts]: Start accepts. Automaton has 440 states and 609 transitions. Word has length 78 [2024-11-07 02:57:49,862 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:49,863 INFO L471 AbstractCegarLoop]: Abstraction has 440 states and 609 transitions. [2024-11-07 02:57:49,863 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.0) internal successors, (78), 6 states have internal predecessors, (78), 0 states have call successors, (0), 0 states 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 02:57:49,863 INFO L276 IsEmpty]: Start isEmpty. Operand 440 states and 609 transitions. [2024-11-07 02:57:49,864 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 02:57:49,864 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:49,864 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] [2024-11-07 02:57:49,864 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-07 02:57:49,865 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:49,865 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:49,865 INFO L85 PathProgramCache]: Analyzing trace with hash 2002190350, now seen corresponding path program 1 times [2024-11-07 02:57:49,865 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:49,865 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255424569] [2024-11-07 02:57:49,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:49,866 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:49,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:50,067 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 02:57:50,068 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:50,068 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255424569] [2024-11-07 02:57:50,068 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255424569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:50,068 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:50,068 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:50,068 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1000343264] [2024-11-07 02:57:50,068 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:50,069 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:50,069 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:50,069 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:50,069 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:50,070 INFO L87 Difference]: Start difference. First operand 440 states and 609 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 02:57:50,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:50,136 INFO L93 Difference]: Finished difference Result 817 states and 1123 transitions. [2024-11-07 02:57:50,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:50,137 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-07 02:57:50,137 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:50,139 INFO L225 Difference]: With dead ends: 817 [2024-11-07 02:57:50,139 INFO L226 Difference]: Without dead ends: 454 [2024-11-07 02:57:50,140 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 02:57:50,140 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 489 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 489 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:50,140 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [489 Valid, 744 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:50,141 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 454 states. [2024-11-07 02:57:50,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 454 to 414. [2024-11-07 02:57:50,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 414 states, 413 states have (on average 1.3825665859564165) internal successors, (571), 413 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:57:50,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 414 states to 414 states and 571 transitions. [2024-11-07 02:57:50,152 INFO L78 Accepts]: Start accepts. Automaton has 414 states and 571 transitions. Word has length 79 [2024-11-07 02:57:50,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:50,152 INFO L471 AbstractCegarLoop]: Abstraction has 414 states and 571 transitions. [2024-11-07 02:57:50,152 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 02:57:50,153 INFO L276 IsEmpty]: Start isEmpty. Operand 414 states and 571 transitions. [2024-11-07 02:57:50,153 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 02:57:50,153 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:50,153 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] [2024-11-07 02:57:50,154 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-07 02:57:50,154 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:50,154 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:50,154 INFO L85 PathProgramCache]: Analyzing trace with hash 1100175118, now seen corresponding path program 1 times [2024-11-07 02:57:50,154 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:50,154 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1890211513] [2024-11-07 02:57:50,155 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:50,155 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:50,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:50,339 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 02:57:50,340 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:50,340 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1890211513] [2024-11-07 02:57:50,340 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1890211513] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:50,340 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:50,340 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:50,340 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1492319638] [2024-11-07 02:57:50,340 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:50,341 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:50,341 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:50,341 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:50,341 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:50,342 INFO L87 Difference]: Start difference. First operand 414 states and 571 transitions. Second operand has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 02:57:50,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:50,371 INFO L93 Difference]: Finished difference Result 792 states and 1093 transitions. [2024-11-07 02:57:50,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:50,372 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-07 02:57:50,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:50,373 INFO L225 Difference]: With dead ends: 792 [2024-11-07 02:57:50,373 INFO L226 Difference]: Without dead ends: 446 [2024-11-07 02:57:50,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:50,374 INFO L432 NwaCegarLoop]: 256 mSDtfsCounter, 12 mSDsluCounter, 757 mSDsCounter, 0 mSdLazyCounter, 22 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 1013 SdHoareTripleChecker+Invalid, 22 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 22 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:50,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [12 Valid, 1013 Invalid, 22 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 22 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:50,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 446 states. [2024-11-07 02:57:50,383 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 446 to 446. [2024-11-07 02:57:50,384 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 446 states, 445 states have (on average 1.3820224719101124) internal successors, (615), 445 states have internal predecessors, (615), 0 states have call successors, (0), 0 states 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 02:57:50,385 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 446 states to 446 states and 615 transitions. [2024-11-07 02:57:50,385 INFO L78 Accepts]: Start accepts. Automaton has 446 states and 615 transitions. Word has length 79 [2024-11-07 02:57:50,386 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:50,386 INFO L471 AbstractCegarLoop]: Abstraction has 446 states and 615 transitions. [2024-11-07 02:57:50,386 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.8) internal successors, (79), 5 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 02:57:50,386 INFO L276 IsEmpty]: Start isEmpty. Operand 446 states and 615 transitions. [2024-11-07 02:57:50,387 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2024-11-07 02:57:50,387 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:50,387 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] [2024-11-07 02:57:50,387 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-07 02:57:50,387 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:50,388 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:50,388 INFO L85 PathProgramCache]: Analyzing trace with hash -1785940377, now seen corresponding path program 1 times [2024-11-07 02:57:50,388 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:50,388 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1045201233] [2024-11-07 02:57:50,388 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:50,388 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:50,441 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:50,738 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 02:57:50,739 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:50,739 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1045201233] [2024-11-07 02:57:50,739 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1045201233] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:50,739 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:50,739 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-07 02:57:50,739 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1365636919] [2024-11-07 02:57:50,739 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:50,739 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:57:50,739 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:50,740 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:57:50,740 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-07 02:57:50,740 INFO L87 Difference]: Start difference. First operand 446 states and 615 transitions. Second operand has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 02:57:50,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:50,821 INFO L93 Difference]: Finished difference Result 839 states and 1157 transitions. [2024-11-07 02:57:50,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:57:50,821 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 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 79 [2024-11-07 02:57:50,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:50,824 INFO L225 Difference]: With dead ends: 839 [2024-11-07 02:57:50,824 INFO L226 Difference]: Without dead ends: 470 [2024-11-07 02:57:50,824 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2024-11-07 02:57:50,825 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 247 mSDsluCounter, 726 mSDsCounter, 0 mSdLazyCounter, 63 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 247 SdHoareTripleChecker+Valid, 972 SdHoareTripleChecker+Invalid, 63 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 63 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:50,825 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [247 Valid, 972 Invalid, 63 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 63 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:50,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-11-07 02:57:50,834 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 470. [2024-11-07 02:57:50,834 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 470 states, 469 states have (on average 1.3795309168443497) internal successors, (647), 469 states have internal predecessors, (647), 0 states have call successors, (0), 0 states 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 02:57:50,836 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 470 states to 470 states and 647 transitions. [2024-11-07 02:57:50,837 INFO L78 Accepts]: Start accepts. Automaton has 470 states and 647 transitions. Word has length 79 [2024-11-07 02:57:50,837 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:50,837 INFO L471 AbstractCegarLoop]: Abstraction has 470 states and 647 transitions. [2024-11-07 02:57:50,837 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 13.166666666666666) internal successors, (79), 6 states have internal predecessors, (79), 0 states have call successors, (0), 0 states 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 02:57:50,837 INFO L276 IsEmpty]: Start isEmpty. Operand 470 states and 647 transitions. [2024-11-07 02:57:50,838 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 02:57:50,838 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:50,838 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] [2024-11-07 02:57:50,838 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-07 02:57:50,839 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:50,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:50,839 INFO L85 PathProgramCache]: Analyzing trace with hash 372677667, now seen corresponding path program 1 times [2024-11-07 02:57:50,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:50,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1841575649] [2024-11-07 02:57:50,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:50,840 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:50,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:51,256 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 02:57:51,257 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:51,257 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1841575649] [2024-11-07 02:57:51,257 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1841575649] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:51,257 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:51,257 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 02:57:51,257 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197772074] [2024-11-07 02:57:51,257 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:51,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 02:57:51,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:51,258 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 02:57:51,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-07 02:57:51,259 INFO L87 Difference]: Start difference. First operand 470 states and 647 transitions. Second operand has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 02:57:51,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:51,361 INFO L93 Difference]: Finished difference Result 890 states and 1223 transitions. [2024-11-07 02:57:51,361 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 02:57:51,361 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-07 02:57:51,361 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:51,363 INFO L225 Difference]: With dead ends: 890 [2024-11-07 02:57:51,363 INFO L226 Difference]: Without dead ends: 482 [2024-11-07 02:57:51,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=20, Invalid=52, Unknown=0, NotChecked=0, Total=72 [2024-11-07 02:57:51,365 INFO L432 NwaCegarLoop]: 246 mSDtfsCounter, 253 mSDsluCounter, 967 mSDsCounter, 0 mSdLazyCounter, 82 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 253 SdHoareTripleChecker+Valid, 1213 SdHoareTripleChecker+Invalid, 83 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 82 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:51,365 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [253 Valid, 1213 Invalid, 83 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 82 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 02:57:51,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2024-11-07 02:57:51,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 482. [2024-11-07 02:57:51,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 482 states, 481 states have (on average 1.3783783783783783) internal successors, (663), 481 states have internal predecessors, (663), 0 states have call successors, (0), 0 states 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 02:57:51,380 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 482 states to 482 states and 663 transitions. [2024-11-07 02:57:51,380 INFO L78 Accepts]: Start accepts. Automaton has 482 states and 663 transitions. Word has length 80 [2024-11-07 02:57:51,380 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:51,380 INFO L471 AbstractCegarLoop]: Abstraction has 482 states and 663 transitions. [2024-11-07 02:57:51,380 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 11.428571428571429) internal successors, (80), 7 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 02:57:51,381 INFO L276 IsEmpty]: Start isEmpty. Operand 482 states and 663 transitions. [2024-11-07 02:57:51,381 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 81 [2024-11-07 02:57:51,381 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:51,381 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] [2024-11-07 02:57:51,382 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-07 02:57:51,382 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:51,383 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:51,383 INFO L85 PathProgramCache]: Analyzing trace with hash -883318539, now seen corresponding path program 1 times [2024-11-07 02:57:51,383 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:51,383 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [633351491] [2024-11-07 02:57:51,383 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:51,383 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:51,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:51,588 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 02:57:51,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:51,589 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [633351491] [2024-11-07 02:57:51,589 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [633351491] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:51,589 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:51,589 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:51,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [211048059] [2024-11-07 02:57:51,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:51,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:51,590 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:51,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:51,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:51,591 INFO L87 Difference]: Start difference. First operand 482 states and 663 transitions. Second operand has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 02:57:51,657 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:51,658 INFO L93 Difference]: Finished difference Result 914 states and 1247 transitions. [2024-11-07 02:57:51,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:51,661 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 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 80 [2024-11-07 02:57:51,661 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:51,663 INFO L225 Difference]: With dead ends: 914 [2024-11-07 02:57:51,664 INFO L226 Difference]: Without dead ends: 496 [2024-11-07 02:57:51,665 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 02:57:51,667 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 477 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 477 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:51,667 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [477 Valid, 744 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:51,668 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 496 states. [2024-11-07 02:57:51,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 496 to 456. [2024-11-07 02:57:51,678 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 456 states, 455 states have (on average 1.3692307692307693) internal successors, (623), 455 states have internal predecessors, (623), 0 states have call successors, (0), 0 states 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 02:57:51,680 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 456 states to 456 states and 623 transitions. [2024-11-07 02:57:51,680 INFO L78 Accepts]: Start accepts. Automaton has 456 states and 623 transitions. Word has length 80 [2024-11-07 02:57:51,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:51,681 INFO L471 AbstractCegarLoop]: Abstraction has 456 states and 623 transitions. [2024-11-07 02:57:51,681 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.0) internal successors, (80), 5 states have internal predecessors, (80), 0 states have call successors, (0), 0 states 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 02:57:51,681 INFO L276 IsEmpty]: Start isEmpty. Operand 456 states and 623 transitions. [2024-11-07 02:57:51,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 82 [2024-11-07 02:57:51,682 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:51,682 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] [2024-11-07 02:57:51,682 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-07 02:57:51,682 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:51,682 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:51,683 INFO L85 PathProgramCache]: Analyzing trace with hash -1711480928, now seen corresponding path program 1 times [2024-11-07 02:57:51,683 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:51,684 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1552594743] [2024-11-07 02:57:51,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:51,684 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:51,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:51,863 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 02:57:51,863 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:51,863 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1552594743] [2024-11-07 02:57:51,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1552594743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 02:57:51,864 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 02:57:51,864 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 02:57:51,864 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1342276750] [2024-11-07 02:57:51,864 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:57:51,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 02:57:51,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:51,865 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 02:57:51,865 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 02:57:51,865 INFO L87 Difference]: Start difference. First operand 456 states and 623 transitions. Second operand has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 02:57:51,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:51,929 INFO L93 Difference]: Finished difference Result 837 states and 1144 transitions. [2024-11-07 02:57:51,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 02:57:51,929 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 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 81 [2024-11-07 02:57:51,929 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:51,931 INFO L225 Difference]: With dead ends: 837 [2024-11-07 02:57:51,931 INFO L226 Difference]: Without dead ends: 419 [2024-11-07 02:57:51,932 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 02:57:51,932 INFO L432 NwaCegarLoop]: 250 mSDtfsCounter, 427 mSDsluCounter, 494 mSDsCounter, 0 mSdLazyCounter, 33 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 427 SdHoareTripleChecker+Valid, 744 SdHoareTripleChecker+Invalid, 33 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 33 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:51,932 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [427 Valid, 744 Invalid, 33 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 33 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 02:57:51,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 419 states. [2024-11-07 02:57:51,940 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 419 to 398. [2024-11-07 02:57:51,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 398 states, 397 states have (on average 1.3828715365239295) internal successors, (549), 397 states have internal predecessors, (549), 0 states have call successors, (0), 0 states 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 02:57:51,944 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 398 states to 398 states and 549 transitions. [2024-11-07 02:57:51,944 INFO L78 Accepts]: Start accepts. Automaton has 398 states and 549 transitions. Word has length 81 [2024-11-07 02:57:51,944 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:51,944 INFO L471 AbstractCegarLoop]: Abstraction has 398 states and 549 transitions. [2024-11-07 02:57:51,944 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 16.2) internal successors, (81), 5 states have internal predecessors, (81), 0 states have call successors, (0), 0 states 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 02:57:51,945 INFO L276 IsEmpty]: Start isEmpty. Operand 398 states and 549 transitions. [2024-11-07 02:57:51,946 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2024-11-07 02:57:51,946 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:51,947 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:57:51,947 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-07 02:57:51,947 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:51,947 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:51,948 INFO L85 PathProgramCache]: Analyzing trace with hash -582979433, now seen corresponding path program 1 times [2024-11-07 02:57:51,948 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:51,948 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1465844652] [2024-11-07 02:57:51,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:51,948 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:52,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:53,746 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:53,746 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:57:53,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1465844652] [2024-11-07 02:57:53,747 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1465844652] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:57:53,747 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27289988] [2024-11-07 02:57:53,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:53,747 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:57:53,747 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:57:53,750 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 02:57:53,752 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 02:57:54,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:57:54,454 INFO L255 TraceCheckSpWp]: Trace formula consists of 1188 conjuncts, 30 conjuncts are in the unsatisfiable core [2024-11-07 02:57:54,468 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:57:55,240 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 12 proven. 42 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:55,241 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 02:57:55,852 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 32 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:57:55,853 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27289988] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 02:57:55,853 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 02:57:55,853 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 10] total 24 [2024-11-07 02:57:55,853 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847990235] [2024-11-07 02:57:55,853 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 02:57:55,854 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-07 02:57:55,854 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:57:55,857 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-07 02:57:55,858 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=122, Invalid=430, Unknown=0, NotChecked=0, Total=552 [2024-11-07 02:57:55,858 INFO L87 Difference]: Start difference. First operand 398 states and 549 transitions. Second operand has 24 states, 24 states have (on average 16.875) internal successors, (405), 24 states have internal predecessors, (405), 0 states have call successors, (0), 0 states 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 02:57:58,872 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:57:58,872 INFO L93 Difference]: Finished difference Result 2318 states and 3185 transitions. [2024-11-07 02:57:58,873 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 51 states. [2024-11-07 02:57:58,873 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 16.875) internal successors, (405), 24 states have internal predecessors, (405), 0 states have call successors, (0), 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 151 [2024-11-07 02:57:58,873 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:57:58,881 INFO L225 Difference]: With dead ends: 2318 [2024-11-07 02:57:58,882 INFO L226 Difference]: Without dead ends: 2002 [2024-11-07 02:57:58,885 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 368 GetRequests, 299 SyntacticMatches, 0 SemanticMatches, 69 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1230 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=859, Invalid=4111, Unknown=0, NotChecked=0, Total=4970 [2024-11-07 02:57:58,886 INFO L432 NwaCegarLoop]: 196 mSDtfsCounter, 3110 mSDsluCounter, 2456 mSDsCounter, 0 mSdLazyCounter, 2500 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3110 SdHoareTripleChecker+Valid, 2652 SdHoareTripleChecker+Invalid, 2528 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 2500 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-07 02:57:58,886 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3110 Valid, 2652 Invalid, 2528 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 2500 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-07 02:57:58,888 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2002 states. [2024-11-07 02:57:58,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2002 to 725. [2024-11-07 02:57:58,910 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 725 states, 724 states have (on average 1.37292817679558) internal successors, (994), 724 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 02:57:58,913 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 725 states to 725 states and 994 transitions. [2024-11-07 02:57:58,913 INFO L78 Accepts]: Start accepts. Automaton has 725 states and 994 transitions. Word has length 151 [2024-11-07 02:57:58,913 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:57:58,913 INFO L471 AbstractCegarLoop]: Abstraction has 725 states and 994 transitions. [2024-11-07 02:57:58,914 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 16.875) internal successors, (405), 24 states have internal predecessors, (405), 0 states have call successors, (0), 0 states 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 02:57:58,914 INFO L276 IsEmpty]: Start isEmpty. Operand 725 states and 994 transitions. [2024-11-07 02:57:58,916 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2024-11-07 02:57:58,916 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:57:58,918 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:57:58,941 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 02:57:59,122 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,SelfDestructingSolverStorable23 [2024-11-07 02:57:59,123 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:57:59,124 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:57:59,124 INFO L85 PathProgramCache]: Analyzing trace with hash 966899066, now seen corresponding path program 1 times [2024-11-07 02:57:59,124 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:57:59,124 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [495047993] [2024-11-07 02:57:59,124 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:57:59,124 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:57:59,626 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:00,626 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 22 proven. 32 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:00,626 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:00,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [495047993] [2024-11-07 02:58:00,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [495047993] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:58:00,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [478758358] [2024-11-07 02:58:00,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:00,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:58:00,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:58:00,629 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 02:58:00,631 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 02:58:01,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:01,191 INFO L255 TraceCheckSpWp]: Trace formula consists of 1191 conjuncts, 13 conjuncts are in the unsatisfiable core [2024-11-07 02:58:01,200 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:58:01,666 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 46 proven. 8 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:01,666 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 02:58:02,075 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 40 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:02,075 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [478758358] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 02:58:02,075 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 02:58:02,076 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 8, 8] total 21 [2024-11-07 02:58:02,076 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1043794326] [2024-11-07 02:58:02,076 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 02:58:02,077 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2024-11-07 02:58:02,077 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:02,078 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2024-11-07 02:58:02,078 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=340, Unknown=0, NotChecked=0, Total=420 [2024-11-07 02:58:02,079 INFO L87 Difference]: Start difference. First operand 725 states and 994 transitions. Second operand has 21 states, 21 states have (on average 14.80952380952381) internal successors, (311), 21 states have internal predecessors, (311), 0 states have call successors, (0), 0 states 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 02:58:03,616 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:03,616 INFO L93 Difference]: Finished difference Result 2952 states and 4045 transitions. [2024-11-07 02:58:03,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2024-11-07 02:58:03,617 INFO L78 Accepts]: Start accepts. Automaton has has 21 states, 21 states have (on average 14.80952380952381) internal successors, (311), 21 states have internal predecessors, (311), 0 states have call successors, (0), 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 152 [2024-11-07 02:58:03,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:03,627 INFO L225 Difference]: With dead ends: 2952 [2024-11-07 02:58:03,627 INFO L226 Difference]: Without dead ends: 2310 [2024-11-07 02:58:03,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 338 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 38 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 287 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=322, Invalid=1238, Unknown=0, NotChecked=0, Total=1560 [2024-11-07 02:58:03,630 INFO L432 NwaCegarLoop]: 190 mSDtfsCounter, 3093 mSDsluCounter, 1928 mSDsCounter, 0 mSdLazyCounter, 1948 mSolverCounterSat, 13 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3093 SdHoareTripleChecker+Valid, 2118 SdHoareTripleChecker+Invalid, 1961 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 13 IncrementalHoareTripleChecker+Valid, 1948 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:03,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3093 Valid, 2118 Invalid, 1961 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [13 Valid, 1948 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 02:58:03,633 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2310 states. [2024-11-07 02:58:03,661 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2310 to 1004. [2024-11-07 02:58:03,663 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1004 states, 1003 states have (on average 1.3639082751744767) internal successors, (1368), 1003 states have internal predecessors, (1368), 0 states have call successors, (0), 0 states 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 02:58:03,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1004 states to 1004 states and 1368 transitions. [2024-11-07 02:58:03,666 INFO L78 Accepts]: Start accepts. Automaton has 1004 states and 1368 transitions. Word has length 152 [2024-11-07 02:58:03,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:03,666 INFO L471 AbstractCegarLoop]: Abstraction has 1004 states and 1368 transitions. [2024-11-07 02:58:03,667 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 14.80952380952381) internal successors, (311), 21 states have internal predecessors, (311), 0 states have call successors, (0), 0 states 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 02:58:03,667 INFO L276 IsEmpty]: Start isEmpty. Operand 1004 states and 1368 transitions. [2024-11-07 02:58:03,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2024-11-07 02:58:03,671 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:03,671 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:03,699 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-07 02:58:03,873 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:58:03,873 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:03,874 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:03,874 INFO L85 PathProgramCache]: Analyzing trace with hash -411499009, now seen corresponding path program 1 times [2024-11-07 02:58:03,874 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:03,874 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1950935223] [2024-11-07 02:58:03,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:03,874 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:04,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:05,693 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 8 proven. 3 refuted. 0 times theorem prover too weak. 43 trivial. 0 not checked. [2024-11-07 02:58:05,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:05,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1950935223] [2024-11-07 02:58:05,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1950935223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:58:05,694 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1620509600] [2024-11-07 02:58:05,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:05,694 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:58:05,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:58:05,696 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 02:58:05,698 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 02:58:06,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:06,569 INFO L255 TraceCheckSpWp]: Trace formula consists of 1194 conjuncts, 105 conjuncts are in the unsatisfiable core [2024-11-07 02:58:06,580 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:58:07,750 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 18 proven. 36 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:07,751 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 02:58:09,915 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 14 proven. 40 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:09,916 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1620509600] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 02:58:09,916 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 02:58:09,916 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 16, 20] total 39 [2024-11-07 02:58:09,916 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [980844286] [2024-11-07 02:58:09,916 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 02:58:09,917 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 39 states [2024-11-07 02:58:09,917 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:09,918 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 39 interpolants. [2024-11-07 02:58:09,918 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=171, Invalid=1311, Unknown=0, NotChecked=0, Total=1482 [2024-11-07 02:58:09,919 INFO L87 Difference]: Start difference. First operand 1004 states and 1368 transitions. Second operand has 39 states, 39 states have (on average 10.41025641025641) internal successors, (406), 39 states have internal predecessors, (406), 0 states have call successors, (0), 0 states 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 02:58:12,658 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:12,658 INFO L93 Difference]: Finished difference Result 2982 states and 4066 transitions. [2024-11-07 02:58:12,659 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 44 states. [2024-11-07 02:58:12,659 INFO L78 Accepts]: Start accepts. Automaton has has 39 states, 39 states have (on average 10.41025641025641) internal successors, (406), 39 states have internal predecessors, (406), 0 states have call successors, (0), 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 153 [2024-11-07 02:58:12,659 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:12,666 INFO L225 Difference]: With dead ends: 2982 [2024-11-07 02:58:12,666 INFO L226 Difference]: Without dead ends: 2051 [2024-11-07 02:58:12,670 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 353 GetRequests, 274 SyntacticMatches, 0 SemanticMatches, 79 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1586 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=741, Invalid=5739, Unknown=0, NotChecked=0, Total=6480 [2024-11-07 02:58:12,670 INFO L432 NwaCegarLoop]: 114 mSDtfsCounter, 1850 mSDsluCounter, 2242 mSDsCounter, 0 mSdLazyCounter, 3208 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1850 SdHoareTripleChecker+Valid, 2356 SdHoareTripleChecker+Invalid, 3228 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 3208 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:12,671 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1850 Valid, 2356 Invalid, 3228 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 3208 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-07 02:58:12,674 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2051 states. [2024-11-07 02:58:12,702 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2051 to 1836. [2024-11-07 02:58:12,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1836 states, 1835 states have (on average 1.3514986376021798) internal successors, (2480), 1835 states have internal predecessors, (2480), 0 states have call successors, (0), 0 states 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 02:58:12,712 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1836 states to 1836 states and 2480 transitions. [2024-11-07 02:58:12,716 INFO L78 Accepts]: Start accepts. Automaton has 1836 states and 2480 transitions. Word has length 153 [2024-11-07 02:58:12,716 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:12,717 INFO L471 AbstractCegarLoop]: Abstraction has 1836 states and 2480 transitions. [2024-11-07 02:58:12,717 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 39 states, 39 states have (on average 10.41025641025641) internal successors, (406), 39 states have internal predecessors, (406), 0 states have call successors, (0), 0 states 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 02:58:12,717 INFO L276 IsEmpty]: Start isEmpty. Operand 1836 states and 2480 transitions. [2024-11-07 02:58:12,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-07 02:58:12,721 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:12,722 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:12,746 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 02:58:12,925 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:58:12,928 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:12,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:12,928 INFO L85 PathProgramCache]: Analyzing trace with hash 349958253, now seen corresponding path program 1 times [2024-11-07 02:58:12,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:12,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1391549252] [2024-11-07 02:58:12,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:12,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:13,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:13,625 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 39 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:13,625 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:13,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1391549252] [2024-11-07 02:58:13,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1391549252] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:58:13,626 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2104339882] [2024-11-07 02:58:13,626 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:13,626 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:58:13,626 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:58:13,628 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 02:58:13,631 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 02:58:14,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:14,113 INFO L255 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 39 conjuncts are in the unsatisfiable core [2024-11-07 02:58:14,117 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:58:14,667 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 10 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:14,667 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 02:58:14,763 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 20 proven. 0 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2024-11-07 02:58:14,764 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2104339882] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-07 02:58:14,764 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-07 02:58:14,764 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [6, 13] total 21 [2024-11-07 02:58:14,764 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1603050446] [2024-11-07 02:58:14,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 02:58:14,764 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-07 02:58:14,764 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:14,765 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-07 02:58:14,765 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=74, Invalid=346, Unknown=0, NotChecked=0, Total=420 [2024-11-07 02:58:14,765 INFO L87 Difference]: Start difference. First operand 1836 states and 2480 transitions. Second operand has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:15,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:15,020 INFO L93 Difference]: Finished difference Result 2940 states and 3990 transitions. [2024-11-07 02:58:15,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-07 02:58:15,020 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 155 [2024-11-07 02:58:15,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:15,025 INFO L225 Difference]: With dead ends: 2940 [2024-11-07 02:58:15,025 INFO L226 Difference]: Without dead ends: 2013 [2024-11-07 02:58:15,026 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 317 GetRequests, 297 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=81, Invalid=381, Unknown=0, NotChecked=0, Total=462 [2024-11-07 02:58:15,027 INFO L432 NwaCegarLoop]: 223 mSDtfsCounter, 188 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 382 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 188 SdHoareTripleChecker+Valid, 657 SdHoareTripleChecker+Invalid, 383 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 382 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:15,027 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [188 Valid, 657 Invalid, 383 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 382 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 02:58:15,029 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2013 states. [2024-11-07 02:58:15,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2013 to 1931. [2024-11-07 02:58:15,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1931 states, 1930 states have (on average 1.3481865284974093) internal successors, (2602), 1930 states have internal predecessors, (2602), 0 states have call successors, (0), 0 states 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 02:58:15,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1931 states to 1931 states and 2602 transitions. [2024-11-07 02:58:15,056 INFO L78 Accepts]: Start accepts. Automaton has 1931 states and 2602 transitions. Word has length 155 [2024-11-07 02:58:15,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:15,056 INFO L471 AbstractCegarLoop]: Abstraction has 1931 states and 2602 transitions. [2024-11-07 02:58:15,057 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 20.833333333333332) internal successors, (125), 6 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-07 02:58:15,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1931 states and 2602 transitions. [2024-11-07 02:58:15,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-07 02:58:15,061 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:15,061 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:15,081 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 02:58:15,261 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable26 [2024-11-07 02:58:15,261 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:15,262 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:15,262 INFO L85 PathProgramCache]: Analyzing trace with hash -2001979791, now seen corresponding path program 1 times [2024-11-07 02:58:15,262 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:15,262 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [871690455] [2024-11-07 02:58:15,262 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:15,262 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:15,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:15,850 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 40 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:15,850 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:15,850 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [871690455] [2024-11-07 02:58:15,851 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [871690455] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:58:15,851 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1382522519] [2024-11-07 02:58:15,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:15,851 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:58:15,851 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:58:15,854 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 02:58:15,856 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 02:58:16,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:16,366 INFO L255 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 42 conjuncts are in the unsatisfiable core [2024-11-07 02:58:16,370 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:58:16,900 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 10 proven. 46 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:16,900 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 02:58:17,553 INFO L134 CoverageAnalysis]: Checked inductivity of 56 backedges. 27 proven. 29 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:17,554 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1382522519] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 02:58:17,554 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 02:58:17,554 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10, 12] total 24 [2024-11-07 02:58:17,554 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1525602312] [2024-11-07 02:58:17,554 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 02:58:17,555 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 24 states [2024-11-07 02:58:17,555 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:17,555 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 24 interpolants. [2024-11-07 02:58:17,556 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=117, Invalid=435, Unknown=0, NotChecked=0, Total=552 [2024-11-07 02:58:17,556 INFO L87 Difference]: Start difference. First operand 1931 states and 2602 transitions. Second operand has 24 states, 24 states have (on average 17.25) internal successors, (414), 24 states have internal predecessors, (414), 0 states have call successors, (0), 0 states 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 02:58:18,840 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:18,841 INFO L93 Difference]: Finished difference Result 5683 states and 7592 transitions. [2024-11-07 02:58:18,841 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-07 02:58:18,841 INFO L78 Accepts]: Start accepts. Automaton has has 24 states, 24 states have (on average 17.25) internal successors, (414), 24 states have internal predecessors, (414), 0 states have call successors, (0), 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 155 [2024-11-07 02:58:18,842 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:18,852 INFO L225 Difference]: With dead ends: 5683 [2024-11-07 02:58:18,852 INFO L226 Difference]: Without dead ends: 3474 [2024-11-07 02:58:18,856 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 245 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=280, Invalid=1052, Unknown=0, NotChecked=0, Total=1332 [2024-11-07 02:58:18,857 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 1078 mSDsluCounter, 2868 mSDsCounter, 0 mSdLazyCounter, 2579 mSolverCounterSat, 15 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1078 SdHoareTripleChecker+Valid, 3092 SdHoareTripleChecker+Invalid, 2594 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 15 IncrementalHoareTripleChecker+Valid, 2579 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:18,857 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1078 Valid, 3092 Invalid, 2594 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [15 Valid, 2579 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-07 02:58:18,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3474 states. [2024-11-07 02:58:18,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3474 to 3316. [2024-11-07 02:58:18,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3316 states, 3315 states have (on average 1.3200603318250377) internal successors, (4376), 3315 states have internal predecessors, (4376), 0 states have call successors, (0), 0 states 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 02:58:18,911 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3316 states to 3316 states and 4376 transitions. [2024-11-07 02:58:18,911 INFO L78 Accepts]: Start accepts. Automaton has 3316 states and 4376 transitions. Word has length 155 [2024-11-07 02:58:18,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:18,912 INFO L471 AbstractCegarLoop]: Abstraction has 3316 states and 4376 transitions. [2024-11-07 02:58:18,912 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 24 states, 24 states have (on average 17.25) internal successors, (414), 24 states have internal predecessors, (414), 0 states have call successors, (0), 0 states 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 02:58:18,912 INFO L276 IsEmpty]: Start isEmpty. Operand 3316 states and 4376 transitions. [2024-11-07 02:58:18,919 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 156 [2024-11-07 02:58:18,919 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:18,919 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:18,942 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 02:58:19,120 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable27 [2024-11-07 02:58:19,120 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:19,121 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:19,121 INFO L85 PathProgramCache]: Analyzing trace with hash -617778228, now seen corresponding path program 1 times [2024-11-07 02:58:19,121 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:19,121 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1533769033] [2024-11-07 02:58:19,121 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:19,121 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:19,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:19,998 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 34 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:19,998 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:19,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1533769033] [2024-11-07 02:58:19,998 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1533769033] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:58:19,998 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662710545] [2024-11-07 02:58:19,998 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:19,998 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:58:19,998 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:58:20,001 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 02:58:20,002 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 02:58:20,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:20,496 INFO L255 TraceCheckSpWp]: Trace formula consists of 1200 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-07 02:58:20,500 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:58:20,896 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 36 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:20,896 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 02:58:21,768 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 33 proven. 21 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:21,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662710545] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 02:58:21,768 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 02:58:21,768 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9, 12] total 26 [2024-11-07 02:58:21,768 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1456971074] [2024-11-07 02:58:21,768 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 02:58:21,769 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2024-11-07 02:58:21,769 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:21,769 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2024-11-07 02:58:21,770 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=115, Invalid=535, Unknown=0, NotChecked=0, Total=650 [2024-11-07 02:58:21,770 INFO L87 Difference]: Start difference. First operand 3316 states and 4376 transitions. Second operand has 26 states, 26 states have (on average 16.115384615384617) internal successors, (419), 26 states have internal predecessors, (419), 0 states have call successors, (0), 0 states 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 02:58:23,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:23,820 INFO L93 Difference]: Finished difference Result 10511 states and 14003 transitions. [2024-11-07 02:58:23,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-07 02:58:23,821 INFO L78 Accepts]: Start accepts. Automaton has has 26 states, 26 states have (on average 16.115384615384617) internal successors, (419), 26 states have internal predecessors, (419), 0 states have call successors, (0), 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 155 [2024-11-07 02:58:23,821 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:23,844 INFO L225 Difference]: With dead ends: 10511 [2024-11-07 02:58:23,844 INFO L226 Difference]: Without dead ends: 8468 [2024-11-07 02:58:23,848 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 333 GetRequests, 293 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=308, Invalid=1414, Unknown=0, NotChecked=0, Total=1722 [2024-11-07 02:58:23,852 INFO L432 NwaCegarLoop]: 347 mSDtfsCounter, 1293 mSDsluCounter, 4611 mSDsCounter, 0 mSdLazyCounter, 4102 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1293 SdHoareTripleChecker+Valid, 4958 SdHoareTripleChecker+Invalid, 4109 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 4102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:23,852 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1293 Valid, 4958 Invalid, 4109 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 4102 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-07 02:58:23,861 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 8468 states. [2024-11-07 02:58:23,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 8468 to 7154. [2024-11-07 02:58:23,994 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7154 states, 7153 states have (on average 1.3187473787222144) internal successors, (9433), 7153 states have internal predecessors, (9433), 0 states have call successors, (0), 0 states 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 02:58:24,011 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7154 states to 7154 states and 9433 transitions. [2024-11-07 02:58:24,011 INFO L78 Accepts]: Start accepts. Automaton has 7154 states and 9433 transitions. Word has length 155 [2024-11-07 02:58:24,012 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:24,012 INFO L471 AbstractCegarLoop]: Abstraction has 7154 states and 9433 transitions. [2024-11-07 02:58:24,012 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 16.115384615384617) internal successors, (419), 26 states have internal predecessors, (419), 0 states have call successors, (0), 0 states 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 02:58:24,012 INFO L276 IsEmpty]: Start isEmpty. Operand 7154 states and 9433 transitions. [2024-11-07 02:58:24,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 02:58:24,026 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:24,026 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:24,049 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 02:58:24,227 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,SelfDestructingSolverStorable28 [2024-11-07 02:58:24,228 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:24,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:24,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1689980050, now seen corresponding path program 1 times [2024-11-07 02:58:24,229 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:24,229 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [140894358] [2024-11-07 02:58:24,229 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:24,229 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:24,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:26,633 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:26,634 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:26,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [140894358] [2024-11-07 02:58:26,634 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [140894358] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:58:26,634 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [555742774] [2024-11-07 02:58:26,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:26,634 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:58:26,634 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:58:26,637 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 02:58:26,640 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 02:58:27,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:27,661 INFO L255 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 254 conjuncts are in the unsatisfiable core [2024-11-07 02:58:27,671 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:58:29,953 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 45 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:29,953 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 02:58:32,977 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 38 proven. 19 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:32,977 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [555742774] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 02:58:32,977 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 02:58:32,977 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 24, 24] total 54 [2024-11-07 02:58:32,978 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355666963] [2024-11-07 02:58:32,978 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 02:58:32,978 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 54 states [2024-11-07 02:58:32,978 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:32,979 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 54 interpolants. [2024-11-07 02:58:32,979 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=377, Invalid=2485, Unknown=0, NotChecked=0, Total=2862 [2024-11-07 02:58:32,980 INFO L87 Difference]: Start difference. First operand 7154 states and 9433 transitions. Second operand has 54 states, 54 states have (on average 7.666666666666667) internal successors, (414), 54 states have internal predecessors, (414), 0 states have call successors, (0), 0 states 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 02:58:36,513 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:36,513 INFO L93 Difference]: Finished difference Result 13097 states and 17272 transitions. [2024-11-07 02:58:36,514 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-07 02:58:36,514 INFO L78 Accepts]: Start accepts. Automaton has has 54 states, 54 states have (on average 7.666666666666667) internal successors, (414), 54 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2024-11-07 02:58:36,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:36,524 INFO L225 Difference]: With dead ends: 13097 [2024-11-07 02:58:36,524 INFO L226 Difference]: Without dead ends: 6009 [2024-11-07 02:58:36,529 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 365 GetRequests, 268 SyntacticMatches, 1 SemanticMatches, 96 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2815 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=1169, Invalid=8337, Unknown=0, NotChecked=0, Total=9506 [2024-11-07 02:58:36,530 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 2042 mSDsluCounter, 2859 mSDsCounter, 0 mSdLazyCounter, 3838 mSolverCounterSat, 18 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2042 SdHoareTripleChecker+Valid, 2983 SdHoareTripleChecker+Invalid, 3856 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Valid, 3838 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:36,530 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2042 Valid, 2983 Invalid, 3856 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [18 Valid, 3838 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 02:58:36,534 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6009 states. [2024-11-07 02:58:36,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6009 to 5748. [2024-11-07 02:58:36,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5748 states, 5747 states have (on average 1.3191230207064555) internal successors, (7581), 5747 states have internal predecessors, (7581), 0 states have call successors, (0), 0 states 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 02:58:36,605 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5748 states to 5748 states and 7581 transitions. [2024-11-07 02:58:36,605 INFO L78 Accepts]: Start accepts. Automaton has 5748 states and 7581 transitions. Word has length 156 [2024-11-07 02:58:36,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:36,606 INFO L471 AbstractCegarLoop]: Abstraction has 5748 states and 7581 transitions. [2024-11-07 02:58:36,606 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 54 states, 54 states have (on average 7.666666666666667) internal successors, (414), 54 states have internal predecessors, (414), 0 states have call successors, (0), 0 states 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 02:58:36,606 INFO L276 IsEmpty]: Start isEmpty. Operand 5748 states and 7581 transitions. [2024-11-07 02:58:36,617 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 02:58:36,618 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:36,618 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:36,644 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-07 02:58:36,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:58:36,819 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:36,819 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:36,819 INFO L85 PathProgramCache]: Analyzing trace with hash 1304795689, now seen corresponding path program 1 times [2024-11-07 02:58:36,819 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:36,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1468276459] [2024-11-07 02:58:36,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:36,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:37,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:38,081 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 37 proven. 18 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:38,081 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:38,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1468276459] [2024-11-07 02:58:38,081 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1468276459] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:58:38,081 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [645832199] [2024-11-07 02:58:38,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:38,081 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:58:38,082 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:58:38,085 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 02:58:38,086 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 02:58:38,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:38,654 INFO L255 TraceCheckSpWp]: Trace formula consists of 1203 conjuncts, 36 conjuncts are in the unsatisfiable core [2024-11-07 02:58:38,658 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:58:39,121 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 20 proven. 35 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:39,122 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 02:58:40,081 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 17 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:40,082 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [645832199] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 02:58:40,082 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 02:58:40,082 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 9, 12] total 27 [2024-11-07 02:58:40,082 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [246935795] [2024-11-07 02:58:40,082 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 02:58:40,082 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 27 states [2024-11-07 02:58:40,082 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:40,083 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 27 interpolants. [2024-11-07 02:58:40,083 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=98, Invalid=604, Unknown=0, NotChecked=0, Total=702 [2024-11-07 02:58:40,083 INFO L87 Difference]: Start difference. First operand 5748 states and 7581 transitions. Second operand has 27 states, 27 states have (on average 16.296296296296298) internal successors, (440), 27 states have internal predecessors, (440), 0 states have call successors, (0), 0 states 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 02:58:42,611 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 02:58:42,611 INFO L93 Difference]: Finished difference Result 11580 states and 15349 transitions. [2024-11-07 02:58:42,611 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-07 02:58:42,612 INFO L78 Accepts]: Start accepts. Automaton has has 27 states, 27 states have (on average 16.296296296296298) internal successors, (440), 27 states have internal predecessors, (440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 156 [2024-11-07 02:58:42,612 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 02:58:42,626 INFO L225 Difference]: With dead ends: 11580 [2024-11-07 02:58:42,627 INFO L226 Difference]: Without dead ends: 6836 [2024-11-07 02:58:42,634 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 354 GetRequests, 300 SyntacticMatches, 0 SemanticMatches, 54 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 567 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=506, Invalid=2574, Unknown=0, NotChecked=0, Total=3080 [2024-11-07 02:58:42,635 INFO L432 NwaCegarLoop]: 350 mSDtfsCounter, 1812 mSDsluCounter, 5261 mSDsCounter, 0 mSdLazyCounter, 4605 mSolverCounterSat, 11 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1812 SdHoareTripleChecker+Valid, 5611 SdHoareTripleChecker+Invalid, 4616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 11 IncrementalHoareTripleChecker+Valid, 4605 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-07 02:58:42,638 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1812 Valid, 5611 Invalid, 4616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [11 Valid, 4605 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-07 02:58:42,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6836 states. [2024-11-07 02:58:42,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6836 to 6244. [2024-11-07 02:58:42,706 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6244 states, 6243 states have (on average 1.312670190613487) internal successors, (8195), 6243 states have internal predecessors, (8195), 0 states have call successors, (0), 0 states 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 02:58:42,714 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6244 states to 6244 states and 8195 transitions. [2024-11-07 02:58:42,714 INFO L78 Accepts]: Start accepts. Automaton has 6244 states and 8195 transitions. Word has length 156 [2024-11-07 02:58:42,714 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 02:58:42,714 INFO L471 AbstractCegarLoop]: Abstraction has 6244 states and 8195 transitions. [2024-11-07 02:58:42,715 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 27 states, 27 states have (on average 16.296296296296298) internal successors, (440), 27 states have internal predecessors, (440), 0 states have call successors, (0), 0 states 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 02:58:42,715 INFO L276 IsEmpty]: Start isEmpty. Operand 6244 states and 8195 transitions. [2024-11-07 02:58:42,726 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-07 02:58:42,726 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 02:58:42,726 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:58:42,750 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-07 02:58:42,927 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30,9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:58:42,927 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 02:58:42,927 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 02:58:42,927 INFO L85 PathProgramCache]: Analyzing trace with hash 1211305785, now seen corresponding path program 1 times [2024-11-07 02:58:42,928 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 02:58:42,928 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [99008084] [2024-11-07 02:58:42,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:42,928 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 02:58:43,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:45,720 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 34 proven. 20 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:45,720 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 02:58:45,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [99008084] [2024-11-07 02:58:45,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [99008084] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 02:58:45,720 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1279950338] [2024-11-07 02:58:45,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 02:58:45,720 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 02:58:45,720 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 02:58:45,722 INFO L229 MonitoredProcess]: Starting monitored process 10 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 02:58:45,741 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-07 02:58:46,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 02:58:46,365 INFO L255 TraceCheckSpWp]: Trace formula consists of 1201 conjuncts, 92 conjuncts are in the unsatisfiable core [2024-11-07 02:58:46,371 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 02:58:47,132 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 32 proven. 22 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 02:58:47,132 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 02:58:48,060 INFO L134 CoverageAnalysis]: Checked inductivity of 54 backedges. 31 proven. 8 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-07 02:58:48,060 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1279950338] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 02:58:48,060 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 02:58:48,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 15, 12] total 35 [2024-11-07 02:58:48,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1638781638] [2024-11-07 02:58:48,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 02:58:48,061 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 35 states [2024-11-07 02:58:48,061 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 02:58:48,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 35 interpolants. [2024-11-07 02:58:48,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=181, Invalid=1009, Unknown=0, NotChecked=0, Total=1190 [2024-11-07 02:58:48,062 INFO L87 Difference]: Start difference. First operand 6244 states and 8195 transitions. Second operand has 35 states, 35 states have (on average 11.742857142857142) internal successors, (411), 35 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0)