./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem01_label13.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/eca-rers2012/Problem01_label13.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '8b3e81a6b8b0761a41c3ab08eaf65813a0a29373f8751b3e6d15ff26531d677e'] Calling Ultimate with: /root/.sdkman/candidates/java/21.0.5-tem/bin/java -Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar -data @noDefault -ultimatedata /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/eca-rers2012/Problem01_label13.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8b3e81a6b8b0761a41c3ab08eaf65813a0a29373f8751b3e6d15ff26531d677e --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 18:53:40,789 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 18:53:40,843 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 18:53:40,847 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 18:53:40,847 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 18:53:40,867 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 18:53:40,869 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 18:53:40,869 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 18:53:40,870 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 18:53:40,870 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 18:53:40,870 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 18:53:40,871 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 18:53:40,871 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 18:53:40,871 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 18:53:40,872 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 18:53:40,872 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 18:53:40,872 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 18:53:40,872 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 18:53:40,872 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 18:53:40,872 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 18:53:40,872 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 18:53:40,872 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 18:53:40,872 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 18:53:40,872 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 18:53:40,873 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 18:53:40,873 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 18:53:40,873 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 8b3e81a6b8b0761a41c3ab08eaf65813a0a29373f8751b3e6d15ff26531d677e [2024-11-06 18:53:41,082 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 18:53:41,087 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 18:53:41,089 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 18:53:41,090 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 18:53:41,090 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 18:53:41,091 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem01_label13.c [2024-11-06 18:53:42,177 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 18:53:42,423 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 18:53:42,424 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label13.c [2024-11-06 18:53:42,434 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d2f1453b7/8306fc4cc7444202a925302a4dc39fc7/FLAG42b4a61b3 [2024-11-06 18:53:42,746 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d2f1453b7/8306fc4cc7444202a925302a4dc39fc7 [2024-11-06 18:53:42,747 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 18:53:42,748 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 18:53:42,749 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 18:53:42,749 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 18:53:42,752 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 18:53:42,753 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:53:42" (1/1) ... [2024-11-06 18:53:42,753 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f480ebd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:42, skipping insertion in model container [2024-11-06 18:53:42,753 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 06:53:42" (1/1) ... [2024-11-06 18:53:42,777 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 18:53:42,970 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label13.c[20841,20854] [2024-11-06 18:53:42,987 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 18:53:42,996 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 18:53:43,041 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem01_label13.c[20841,20854] [2024-11-06 18:53:43,048 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 18:53:43,061 INFO L204 MainTranslator]: Completed translation [2024-11-06 18:53:43,062 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43 WrapperNode [2024-11-06 18:53:43,063 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 18:53:43,064 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 18:53:43,064 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 18:53:43,064 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 18:53:43,068 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43" (1/1) ... [2024-11-06 18:53:43,079 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43" (1/1) ... [2024-11-06 18:53:43,113 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 658 [2024-11-06 18:53:43,113 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 18:53:43,114 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 18:53:43,114 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 18:53:43,114 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 18:53:43,121 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43" (1/1) ... [2024-11-06 18:53:43,122 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43" (1/1) ... [2024-11-06 18:53:43,127 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43" (1/1) ... [2024-11-06 18:53:43,151 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-06 18:53:43,154 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43" (1/1) ... [2024-11-06 18:53:43,154 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43" (1/1) ... [2024-11-06 18:53:43,168 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43" (1/1) ... [2024-11-06 18:53:43,180 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43" (1/1) ... [2024-11-06 18:53:43,184 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43" (1/1) ... [2024-11-06 18:53:43,189 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43" (1/1) ... [2024-11-06 18:53:43,215 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 18:53:43,215 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 18:53:43,217 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 18:53:43,217 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 18:53:43,218 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43" (1/1) ... [2024-11-06 18:53:43,222 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 18:53:43,231 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:53:43,241 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 18:53:43,247 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 18:53:43,261 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 18:53:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 18:53:43,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 18:53:43,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 18:53:43,319 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 18:53:43,321 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 18:53:44,038 INFO L? ?]: Removed 75 outVars from TransFormulas that were not future-live. [2024-11-06 18:53:44,039 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 18:53:44,048 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 18:53:44,048 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 18:53:44,048 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:53:44 BoogieIcfgContainer [2024-11-06 18:53:44,048 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 18:53:44,050 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 18:53:44,050 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 18:53:44,053 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 18:53:44,053 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 06:53:42" (1/3) ... [2024-11-06 18:53:44,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315721db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:53:44, skipping insertion in model container [2024-11-06 18:53:44,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 06:53:43" (2/3) ... [2024-11-06 18:53:44,054 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@315721db and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 06:53:44, skipping insertion in model container [2024-11-06 18:53:44,054 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:53:44" (3/3) ... [2024-11-06 18:53:44,055 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem01_label13.c [2024-11-06 18:53:44,064 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 18:53:44,064 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 18:53:44,108 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 18:53:44,118 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;@12f9ce93, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 18:53:44,119 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 18:53:44,123 INFO L276 IsEmpty]: Start isEmpty. Operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:44,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 124 [2024-11-06 18:53:44,132 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:53:44,132 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:53:44,133 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:53:44,135 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:53:44,136 INFO L85 PathProgramCache]: Analyzing trace with hash 1419855070, now seen corresponding path program 1 times [2024-11-06 18:53:44,140 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:53:44,141 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [460296900] [2024-11-06 18:53:44,141 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:53:44,141 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:53:44,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:53:44,565 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:53:44,565 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:53:44,566 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [460296900] [2024-11-06 18:53:44,567 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [460296900] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:53:44,568 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:53:44,568 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:53:44,569 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1154806431] [2024-11-06 18:53:44,569 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:53:44,572 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:53:44,573 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:53:44,588 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:53:44,589 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:53:44,590 INFO L87 Difference]: Start difference. First operand has 198 states, 196 states have (on average 1.6683673469387754) internal successors, (327), 197 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:45,177 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:53:45,179 INFO L93 Difference]: Finished difference Result 528 states and 915 transitions. [2024-11-06 18:53:45,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:53:45,181 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 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 123 [2024-11-06 18:53:45,181 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:53:45,191 INFO L225 Difference]: With dead ends: 528 [2024-11-06 18:53:45,192 INFO L226 Difference]: Without dead ends: 266 [2024-11-06 18:53:45,194 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:53:45,199 INFO L432 NwaCegarLoop]: 36 mSDtfsCounter, 72 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 388 mSolverCounterSat, 151 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 44 SdHoareTripleChecker+Invalid, 539 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 151 IncrementalHoareTripleChecker+Valid, 388 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 18:53:45,200 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 44 Invalid, 539 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [151 Valid, 388 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 18:53:45,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2024-11-06 18:53:45,232 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 266. [2024-11-06 18:53:45,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 266 states, 265 states have (on average 1.4792452830188678) internal successors, (392), 265 states have internal predecessors, (392), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:45,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 392 transitions. [2024-11-06 18:53:45,241 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 392 transitions. Word has length 123 [2024-11-06 18:53:45,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:53:45,242 INFO L471 AbstractCegarLoop]: Abstraction has 266 states and 392 transitions. [2024-11-06 18:53:45,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 41.0) internal successors, (123), 2 states have internal predecessors, (123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:45,242 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 392 transitions. [2024-11-06 18:53:45,245 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-06 18:53:45,245 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:53:45,245 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:53:45,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 18:53:45,246 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:53:45,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:53:45,247 INFO L85 PathProgramCache]: Analyzing trace with hash 1345449990, now seen corresponding path program 1 times [2024-11-06 18:53:45,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:53:45,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1666529718] [2024-11-06 18:53:45,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:53:45,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:53:45,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:53:45,384 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:53:45,384 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:53:45,384 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1666529718] [2024-11-06 18:53:45,384 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1666529718] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:53:45,384 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:53:45,384 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:53:45,384 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460663169] [2024-11-06 18:53:45,384 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:53:45,385 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:53:45,385 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:53:45,386 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:53:45,386 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:53:45,386 INFO L87 Difference]: Start difference. First operand 266 states and 392 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:45,746 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:53:45,746 INFO L93 Difference]: Finished difference Result 792 states and 1171 transitions. [2024-11-06 18:53:45,746 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:53:45,746 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 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 128 [2024-11-06 18:53:45,747 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:53:45,748 INFO L225 Difference]: With dead ends: 792 [2024-11-06 18:53:45,749 INFO L226 Difference]: Without dead ends: 528 [2024-11-06 18:53:45,749 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:53:45,750 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 172 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 29 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:53:45,750 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 29 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:53:45,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 528 states. [2024-11-06 18:53:45,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 528 to 528. [2024-11-06 18:53:45,776 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 528 states, 527 states have (on average 1.413662239089184) internal successors, (745), 527 states have internal predecessors, (745), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:45,778 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 528 states to 528 states and 745 transitions. [2024-11-06 18:53:45,781 INFO L78 Accepts]: Start accepts. Automaton has 528 states and 745 transitions. Word has length 128 [2024-11-06 18:53:45,781 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:53:45,781 INFO L471 AbstractCegarLoop]: Abstraction has 528 states and 745 transitions. [2024-11-06 18:53:45,781 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 2 states have internal predecessors, (128), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:45,781 INFO L276 IsEmpty]: Start isEmpty. Operand 528 states and 745 transitions. [2024-11-06 18:53:45,785 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-06 18:53:45,788 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:53:45,788 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:53:45,789 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 18:53:45,789 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:53:45,789 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:53:45,791 INFO L85 PathProgramCache]: Analyzing trace with hash -1568834049, now seen corresponding path program 1 times [2024-11-06 18:53:45,791 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:53:45,791 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [303591371] [2024-11-06 18:53:45,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:53:45,791 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:53:45,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:53:45,983 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:53:45,983 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:53:45,983 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [303591371] [2024-11-06 18:53:45,983 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [303591371] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:53:45,983 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:53:45,983 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:53:45,983 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [716434447] [2024-11-06 18:53:45,983 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:53:45,984 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:53:45,984 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:53:45,985 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:53:45,986 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:53:45,986 INFO L87 Difference]: Start difference. First operand 528 states and 745 transitions. Second operand has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:46,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:53:46,314 INFO L93 Difference]: Finished difference Result 1447 states and 2032 transitions. [2024-11-06 18:53:46,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:53:46,314 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-11-06 18:53:46,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:53:46,317 INFO L225 Difference]: With dead ends: 1447 [2024-11-06 18:53:46,317 INFO L226 Difference]: Without dead ends: 921 [2024-11-06 18:53:46,318 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:53:46,319 INFO L432 NwaCegarLoop]: 51 mSDtfsCounter, 123 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 320 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 123 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 390 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:53:46,319 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [123 Valid, 55 Invalid, 390 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 320 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:53:46,320 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 921 states. [2024-11-06 18:53:46,335 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 921 to 921. [2024-11-06 18:53:46,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 921 states, 920 states have (on average 1.2902173913043478) internal successors, (1187), 920 states have internal predecessors, (1187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:46,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 921 states to 921 states and 1187 transitions. [2024-11-06 18:53:46,342 INFO L78 Accepts]: Start accepts. Automaton has 921 states and 1187 transitions. Word has length 138 [2024-11-06 18:53:46,342 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:53:46,342 INFO L471 AbstractCegarLoop]: Abstraction has 921 states and 1187 transitions. [2024-11-06 18:53:46,342 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.0) internal successors, (138), 2 states have internal predecessors, (138), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:46,342 INFO L276 IsEmpty]: Start isEmpty. Operand 921 states and 1187 transitions. [2024-11-06 18:53:46,347 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2024-11-06 18:53:46,347 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:53:46,348 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:53:46,348 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 18:53:46,348 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:53:46,348 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:53:46,349 INFO L85 PathProgramCache]: Analyzing trace with hash 1334530575, now seen corresponding path program 1 times [2024-11-06 18:53:46,349 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:53:46,349 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366002288] [2024-11-06 18:53:46,349 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:53:46,349 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:53:46,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:53:46,519 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 14 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2024-11-06 18:53:46,520 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:53:46,521 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366002288] [2024-11-06 18:53:46,521 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366002288] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:53:46,521 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:53:46,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 18:53:46,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [763300828] [2024-11-06 18:53:46,521 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:53:46,521 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:53:46,521 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:53:46,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:53:46,522 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:53:46,522 INFO L87 Difference]: Start difference. First operand 921 states and 1187 transitions. Second operand has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:46,861 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:53:46,861 INFO L93 Difference]: Finished difference Result 2102 states and 2725 transitions. [2024-11-06 18:53:46,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:53:46,862 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 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 139 [2024-11-06 18:53:46,862 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:53:46,866 INFO L225 Difference]: With dead ends: 2102 [2024-11-06 18:53:46,866 INFO L226 Difference]: Without dead ends: 1183 [2024-11-06 18:53:46,867 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:53:46,868 INFO L432 NwaCegarLoop]: 68 mSDtfsCounter, 129 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 310 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 129 SdHoareTripleChecker+Valid, 72 SdHoareTripleChecker+Invalid, 372 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 310 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:53:46,868 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [129 Valid, 72 Invalid, 372 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 310 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:53:46,869 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1183 states. [2024-11-06 18:53:46,902 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1183 to 1183. [2024-11-06 18:53:46,904 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1183 states, 1182 states have (on average 1.2470389170896785) internal successors, (1474), 1182 states have internal predecessors, (1474), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:46,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1183 states to 1183 states and 1474 transitions. [2024-11-06 18:53:46,907 INFO L78 Accepts]: Start accepts. Automaton has 1183 states and 1474 transitions. Word has length 139 [2024-11-06 18:53:46,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:53:46,907 INFO L471 AbstractCegarLoop]: Abstraction has 1183 states and 1474 transitions. [2024-11-06 18:53:46,907 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 45.0) internal successors, (135), 2 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:46,907 INFO L276 IsEmpty]: Start isEmpty. Operand 1183 states and 1474 transitions. [2024-11-06 18:53:46,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2024-11-06 18:53:46,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:53:46,909 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:53:46,909 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 18:53:46,909 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:53:46,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:53:46,910 INFO L85 PathProgramCache]: Analyzing trace with hash -1692799433, now seen corresponding path program 1 times [2024-11-06 18:53:46,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:53:46,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1337862599] [2024-11-06 18:53:46,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:53:46,910 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:53:46,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:53:47,082 INFO L134 CoverageAnalysis]: Checked inductivity of 21 backedges. 21 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:53:47,083 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:53:47,083 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1337862599] [2024-11-06 18:53:47,083 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1337862599] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:53:47,083 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:53:47,083 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:53:47,083 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1149444771] [2024-11-06 18:53:47,083 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:53:47,083 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 18:53:47,083 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:53:47,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 18:53:47,084 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:53:47,084 INFO L87 Difference]: Start difference. First operand 1183 states and 1474 transitions. Second operand has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:47,638 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:53:47,638 INFO L93 Difference]: Finished difference Result 3150 states and 3955 transitions. [2024-11-06 18:53:47,639 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 18:53:47,639 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 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 142 [2024-11-06 18:53:47,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:53:47,645 INFO L225 Difference]: With dead ends: 3150 [2024-11-06 18:53:47,645 INFO L226 Difference]: Without dead ends: 1969 [2024-11-06 18:53:47,648 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:53:47,650 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 382 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 506 mSolverCounterSat, 110 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 382 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 616 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 110 IncrementalHoareTripleChecker+Valid, 506 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 18:53:47,650 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [382 Valid, 58 Invalid, 616 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [110 Valid, 506 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 18:53:47,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1969 states. [2024-11-06 18:53:47,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1969 to 1838. [2024-11-06 18:53:47,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.221556886227545) internal successors, (2244), 1837 states have internal predecessors, (2244), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:47,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2244 transitions. [2024-11-06 18:53:47,693 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2244 transitions. Word has length 142 [2024-11-06 18:53:47,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:53:47,693 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2244 transitions. [2024-11-06 18:53:47,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 35.5) internal successors, (142), 3 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:47,693 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2244 transitions. [2024-11-06 18:53:47,696 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2024-11-06 18:53:47,696 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:53:47,696 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:53:47,696 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 18:53:47,697 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:53:47,697 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:53:47,697 INFO L85 PathProgramCache]: Analyzing trace with hash -1524050346, now seen corresponding path program 1 times [2024-11-06 18:53:47,697 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:53:47,697 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [605894184] [2024-11-06 18:53:47,697 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:53:47,697 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:53:47,723 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:53:47,868 INFO L134 CoverageAnalysis]: Checked inductivity of 36 backedges. 36 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:53:47,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:53:47,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [605894184] [2024-11-06 18:53:47,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [605894184] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:53:47,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:53:47,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:53:47,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [751567941] [2024-11-06 18:53:47,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:53:47,870 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:53:47,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:53:47,871 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:53:47,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:53:47,871 INFO L87 Difference]: Start difference. First operand 1838 states and 2244 transitions. Second operand has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:48,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:53:48,191 INFO L93 Difference]: Finished difference Result 3674 states and 4486 transitions. [2024-11-06 18:53:48,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:53:48,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 160 [2024-11-06 18:53:48,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:53:48,197 INFO L225 Difference]: With dead ends: 3674 [2024-11-06 18:53:48,198 INFO L226 Difference]: Without dead ends: 1838 [2024-11-06 18:53:48,199 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:53:48,201 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 15 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 342 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 15 SdHoareTripleChecker+Valid, 175 SdHoareTripleChecker+Invalid, 396 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:53:48,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [15 Valid, 175 Invalid, 396 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 342 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:53:48,203 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2024-11-06 18:53:48,221 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1445. [2024-11-06 18:53:48,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1445 states, 1444 states have (on average 1.1634349030470914) internal successors, (1680), 1444 states have internal predecessors, (1680), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:48,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1445 states to 1445 states and 1680 transitions. [2024-11-06 18:53:48,228 INFO L78 Accepts]: Start accepts. Automaton has 1445 states and 1680 transitions. Word has length 160 [2024-11-06 18:53:48,228 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:53:48,228 INFO L471 AbstractCegarLoop]: Abstraction has 1445 states and 1680 transitions. [2024-11-06 18:53:48,228 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 53.333333333333336) internal successors, (160), 3 states have internal predecessors, (160), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:48,228 INFO L276 IsEmpty]: Start isEmpty. Operand 1445 states and 1680 transitions. [2024-11-06 18:53:48,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-06 18:53:48,232 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:53:48,233 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:53:48,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 18:53:48,233 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:53:48,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:53:48,233 INFO L85 PathProgramCache]: Analyzing trace with hash 1444041687, now seen corresponding path program 1 times [2024-11-06 18:53:48,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:53:48,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473111679] [2024-11-06 18:53:48,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:53:48,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:53:48,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:53:48,355 INFO L134 CoverageAnalysis]: Checked inductivity of 119 backedges. 119 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:53:48,355 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:53:48,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [473111679] [2024-11-06 18:53:48,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [473111679] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:53:48,355 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:53:48,355 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 18:53:48,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425538286] [2024-11-06 18:53:48,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:53:48,356 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:53:48,356 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:53:48,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:53:48,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:53:48,357 INFO L87 Difference]: Start difference. First operand 1445 states and 1680 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:48,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:53:48,702 INFO L93 Difference]: Finished difference Result 3281 states and 3835 transitions. [2024-11-06 18:53:48,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:53:48,702 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 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 207 [2024-11-06 18:53:48,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:53:48,708 INFO L225 Difference]: With dead ends: 3281 [2024-11-06 18:53:48,708 INFO L226 Difference]: Without dead ends: 1838 [2024-11-06 18:53:48,709 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 18:53:48,710 INFO L432 NwaCegarLoop]: 192 mSDtfsCounter, 88 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 362 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 88 SdHoareTripleChecker+Valid, 197 SdHoareTripleChecker+Invalid, 397 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 362 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:53:48,711 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [88 Valid, 197 Invalid, 397 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 362 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:53:48,713 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2024-11-06 18:53:48,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838. [2024-11-06 18:53:48,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1480675013609145) internal successors, (2109), 1837 states have internal predecessors, (2109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:48,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2109 transitions. [2024-11-06 18:53:48,742 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2109 transitions. Word has length 207 [2024-11-06 18:53:48,743 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:53:48,743 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2109 transitions. [2024-11-06 18:53:48,743 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:48,744 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2109 transitions. [2024-11-06 18:53:48,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2024-11-06 18:53:48,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:53:48,747 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:53:48,747 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 18:53:48,747 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:53:48,748 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:53:48,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1121970277, now seen corresponding path program 1 times [2024-11-06 18:53:48,748 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:53:48,748 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129888173] [2024-11-06 18:53:48,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:53:48,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:53:48,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:53:48,938 INFO L134 CoverageAnalysis]: Checked inductivity of 143 backedges. 117 proven. 0 refuted. 0 times theorem prover too weak. 26 trivial. 0 not checked. [2024-11-06 18:53:48,938 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:53:48,938 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129888173] [2024-11-06 18:53:48,938 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [129888173] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:53:48,938 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 18:53:48,938 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 18:53:48,938 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1651415906] [2024-11-06 18:53:48,938 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:53:48,939 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 18:53:48,939 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:53:48,939 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 18:53:48,939 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:53:48,939 INFO L87 Difference]: Start difference. First operand 1838 states and 2109 transitions. Second operand has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:49,434 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:53:49,434 INFO L93 Difference]: Finished difference Result 3674 states and 4216 transitions. [2024-11-06 18:53:49,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 18:53:49,435 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 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 210 [2024-11-06 18:53:49,435 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:53:49,439 INFO L225 Difference]: With dead ends: 3674 [2024-11-06 18:53:49,440 INFO L226 Difference]: Without dead ends: 1838 [2024-11-06 18:53:49,441 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 18:53:49,442 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 223 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 648 mSolverCounterSat, 88 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 223 SdHoareTripleChecker+Valid, 40 SdHoareTripleChecker+Invalid, 736 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 88 IncrementalHoareTripleChecker+Valid, 648 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 18:53:49,442 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [223 Valid, 40 Invalid, 736 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [88 Valid, 648 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 18:53:49,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1838 states. [2024-11-06 18:53:49,460 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1838 to 1838. [2024-11-06 18:53:49,462 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1186717474142625) internal successors, (2055), 1837 states have internal predecessors, (2055), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:49,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2055 transitions. [2024-11-06 18:53:49,466 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2055 transitions. Word has length 210 [2024-11-06 18:53:49,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:53:49,467 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2055 transitions. [2024-11-06 18:53:49,467 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 46.25) internal successors, (185), 4 states have internal predecessors, (185), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:49,467 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2055 transitions. [2024-11-06 18:53:49,469 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2024-11-06 18:53:49,469 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:53:49,469 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2024-11-06 18:53:49,469 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 18:53:49,469 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:53:49,470 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:53:49,470 INFO L85 PathProgramCache]: Analyzing trace with hash 400781984, now seen corresponding path program 1 times [2024-11-06 18:53:49,470 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:53:49,470 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955191389] [2024-11-06 18:53:49,470 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:53:49,470 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:53:49,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:53:49,635 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 104 proven. 47 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 18:53:49,635 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:53:49,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955191389] [2024-11-06 18:53:49,636 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955191389] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:53:49,636 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1450279934] [2024-11-06 18:53:49,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:53:49,636 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:53:49,636 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:53:49,638 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:53:49,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 18:53:49,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:53:49,753 INFO L255 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 18:53:49,758 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:53:50,025 INFO L134 CoverageAnalysis]: Checked inductivity of 151 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 151 trivial. 0 not checked. [2024-11-06 18:53:50,025 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:53:50,025 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1450279934] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:53:50,025 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:53:50,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-06 18:53:50,026 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [899947983] [2024-11-06 18:53:50,026 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:53:50,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:53:50,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:53:50,026 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:53:50,027 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:53:50,027 INFO L87 Difference]: Start difference. First operand 1838 states and 2055 transitions. Second operand has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:50,332 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:53:50,333 INFO L93 Difference]: Finished difference Result 2233 states and 2485 transitions. [2024-11-06 18:53:50,333 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:53:50,333 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 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 229 [2024-11-06 18:53:50,333 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:53:50,338 INFO L225 Difference]: With dead ends: 2233 [2024-11-06 18:53:50,339 INFO L226 Difference]: Without dead ends: 2231 [2024-11-06 18:53:50,339 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 232 GetRequests, 229 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-06 18:53:50,340 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 30 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 341 mSolverCounterSat, 27 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 30 SdHoareTripleChecker+Valid, 31 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 27 IncrementalHoareTripleChecker+Valid, 341 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:53:50,340 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [30 Valid, 31 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [27 Valid, 341 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:53:50,341 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2231 states. [2024-11-06 18:53:50,358 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2231 to 1838. [2024-11-06 18:53:50,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1838 states, 1837 states have (on average 1.1181273816004356) internal successors, (2054), 1837 states have internal predecessors, (2054), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:50,364 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1838 states to 1838 states and 2054 transitions. [2024-11-06 18:53:50,364 INFO L78 Accepts]: Start accepts. Automaton has 1838 states and 2054 transitions. Word has length 229 [2024-11-06 18:53:50,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:53:50,364 INFO L471 AbstractCegarLoop]: Abstraction has 1838 states and 2054 transitions. [2024-11-06 18:53:50,364 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.0) internal successors, (126), 2 states have internal predecessors, (126), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:50,365 INFO L276 IsEmpty]: Start isEmpty. Operand 1838 states and 2054 transitions. [2024-11-06 18:53:50,368 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 318 [2024-11-06 18:53:50,368 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 18:53:50,368 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:53:50,381 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 18:53:50,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:53:50,573 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 18:53:50,573 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 18:53:50,573 INFO L85 PathProgramCache]: Analyzing trace with hash 1965255341, now seen corresponding path program 1 times [2024-11-06 18:53:50,574 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 18:53:50,574 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1124822622] [2024-11-06 18:53:50,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:53:50,574 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 18:53:50,631 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:53:51,043 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 270 proven. 114 refuted. 0 times theorem prover too weak. 27 trivial. 0 not checked. [2024-11-06 18:53:51,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 18:53:51,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1124822622] [2024-11-06 18:53:51,044 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1124822622] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 18:53:51,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [383365767] [2024-11-06 18:53:51,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 18:53:51,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:53:51,044 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 18:53:51,047 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 18:53:51,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-06 18:53:51,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 18:53:51,184 INFO L255 TraceCheckSpWp]: Trace formula consists of 531 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 18:53:51,191 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 18:53:51,404 INFO L134 CoverageAnalysis]: Checked inductivity of 411 backedges. 250 proven. 0 refuted. 0 times theorem prover too weak. 161 trivial. 0 not checked. [2024-11-06 18:53:51,404 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 18:53:51,404 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [383365767] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 18:53:51,404 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 18:53:51,405 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-06 18:53:51,405 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078006126] [2024-11-06 18:53:51,405 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 18:53:51,405 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 18:53:51,405 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 18:53:51,405 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 18:53:51,406 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-06 18:53:51,406 INFO L87 Difference]: Start difference. First operand 1838 states and 2054 transitions. Second operand has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:51,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 18:53:51,736 INFO L93 Difference]: Finished difference Result 4065 states and 4534 transitions. [2024-11-06 18:53:51,736 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 18:53:51,737 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 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 317 [2024-11-06 18:53:51,737 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 18:53:51,737 INFO L225 Difference]: With dead ends: 4065 [2024-11-06 18:53:51,737 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 18:53:51,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 322 GetRequests, 317 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-06 18:53:51,750 INFO L432 NwaCegarLoop]: 185 mSDtfsCounter, 17 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 317 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 190 SdHoareTripleChecker+Invalid, 376 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 317 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 18:53:51,751 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 190 Invalid, 376 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 317 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 18:53:51,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 18:53:51,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 18:53:51,751 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:51,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 18:53:51,752 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 317 [2024-11-06 18:53:51,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 18:53:51,752 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 18:53:51,752 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 62.333333333333336) internal successors, (187), 3 states have internal predecessors, (187), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 18:53:51,752 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 18:53:51,752 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 18:53:51,754 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 18:53:51,767 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-06 18:53:51,958 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 18:53:51,961 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 18:53:51,963 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 18:53:52,107 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 18:53:52,123 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 06:53:52 BoogieIcfgContainer [2024-11-06 18:53:52,123 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 18:53:52,124 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 18:53:52,124 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 18:53:52,124 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 18:53:52,124 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 06:53:44" (3/4) ... [2024-11-06 18:53:52,126 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-06 18:53:52,142 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-06 18:53:52,143 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-06 18:53:52,144 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-06 18:53:52,144 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-06 18:53:52,233 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-06 18:53:52,234 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-06 18:53:52,234 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 18:53:52,234 INFO L158 Benchmark]: Toolchain (without parser) took 9486.03ms. Allocated memory was 100.7MB in the beginning and 243.3MB in the end (delta: 142.6MB). Free memory was 75.4MB in the beginning and 164.7MB in the end (delta: -89.4MB). Peak memory consumption was 50.4MB. Max. memory is 16.1GB. [2024-11-06 18:53:52,235 INFO L158 Benchmark]: CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 18:53:52,235 INFO L158 Benchmark]: CACSL2BoogieTranslator took 313.99ms. Allocated memory is still 100.7MB. Free memory was 75.2MB in the beginning and 48.4MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-06 18:53:52,235 INFO L158 Benchmark]: Boogie Procedure Inliner took 49.86ms. Allocated memory is still 100.7MB. Free memory was 48.4MB in the beginning and 42.9MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 18:53:52,235 INFO L158 Benchmark]: Boogie Preprocessor took 100.90ms. Allocated memory is still 100.7MB. Free memory was 42.9MB in the beginning and 72.9MB in the end (delta: -30.0MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. [2024-11-06 18:53:52,235 INFO L158 Benchmark]: RCFGBuilder took 833.13ms. Allocated memory is still 100.7MB. Free memory was 72.9MB in the beginning and 65.1MB in the end (delta: 7.8MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. [2024-11-06 18:53:52,239 INFO L158 Benchmark]: TraceAbstraction took 8073.65ms. Allocated memory was 100.7MB in the beginning and 243.3MB in the end (delta: 142.6MB). Free memory was 64.6MB in the beginning and 175.6MB in the end (delta: -111.0MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. [2024-11-06 18:53:52,239 INFO L158 Benchmark]: Witness Printer took 110.10ms. Allocated memory is still 243.3MB. Free memory was 175.6MB in the beginning and 164.7MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 18:53:52,240 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21ms. Allocated memory is still 83.9MB. Free memory is still 48.0MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 313.99ms. Allocated memory is still 100.7MB. Free memory was 75.2MB in the beginning and 48.4MB in the end (delta: 26.8MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 49.86ms. Allocated memory is still 100.7MB. Free memory was 48.4MB in the beginning and 42.9MB in the end (delta: 5.5MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 100.90ms. Allocated memory is still 100.7MB. Free memory was 42.9MB in the beginning and 72.9MB in the end (delta: -30.0MB). Peak memory consumption was 15.3MB. Max. memory is 16.1GB. * RCFGBuilder took 833.13ms. Allocated memory is still 100.7MB. Free memory was 72.9MB in the beginning and 65.1MB in the end (delta: 7.8MB). Peak memory consumption was 48.4MB. Max. memory is 16.1GB. * TraceAbstraction took 8073.65ms. Allocated memory was 100.7MB in the beginning and 243.3MB in the end (delta: 142.6MB). Free memory was 64.6MB in the beginning and 175.6MB in the end (delta: -111.0MB). Peak memory consumption was 32.6MB. Max. memory is 16.1GB. * Witness Printer took 110.10ms. Allocated memory is still 243.3MB. Free memory was 175.6MB in the beginning and 164.7MB in the end (delta: 10.8MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 555]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 198 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 7.9s, OverallIterations: 10, TraceHistogramMax: 6, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 4.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 1251 SdHoareTripleChecker+Valid, 3.7s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 1251 mSDsluCounter, 891 SdHoareTripleChecker+Invalid, 3.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 60 mSDsCounter, 738 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 3844 IncrementalHoareTripleChecker+Invalid, 4582 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 738 mSolverCounterUnsat, 831 mSDtfsCounter, 3844 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 575 GetRequests, 557 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1838occurred in iteration=5, InterpolantAutomatonStates: 32, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 917 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 2339 NumberOfCodeBlocks, 2339 NumberOfCodeBlocksAsserted, 12 NumberOfCheckSat, 2327 ConstructedInterpolants, 0 QuantifiedInterpolants, 7489 SizeOfPredicates, 0 NumberOfNonLiveVariables, 893 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 12 InterpolantComputations, 10 PerfectInterpolantSequences, 1319/1480 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 593]: Loop Invariant Derived loop invariant: (((((((((a21 == 1) && (a17 == 1)) && (15 <= a8)) || (((a21 == 1) && (15 <= a8)) && (a17 == 0))) || (((a21 == 1) && (a16 <= 5)) && (a17 == 0))) || (((a8 <= 13) && (a17 == 1)) && (a16 <= 5))) || ((a8 <= 13) && (a17 == 0))) || ((((a8 <= 13) && (a21 == 1)) && (a17 == 1)) && (a20 == 1))) || ((((a21 == 1) && (a17 == 1)) && (a16 <= 5)) && (a20 == 1))) RESULT: Ultimate proved your program to be correct! [2024-11-06 18:53:52,266 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE