./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label49.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/Problem15_label49.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', '6eed2c2d5e428bcec2beb9a0ebe7c478639dba36839dc4adf5520912920088de'] 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/Problem15_label49.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 6eed2c2d5e428bcec2beb9a0ebe7c478639dba36839dc4adf5520912920088de --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 19:58:41,058 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 19:58:41,196 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 19:58:41,203 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 19:58:41,204 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 19:58:41,233 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 19:58:41,234 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 19:58:41,235 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 19:58:41,235 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 19:58:41,236 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 19:58:41,236 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 19:58:41,236 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 19:58:41,236 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 19:58:41,237 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 19:58:41,237 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 19:58:41,237 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 19:58:41,237 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 19:58:41,237 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 19:58:41,238 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 19:58:41,238 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:58:41,238 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 19:58:41,239 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 19:58:41,239 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 19:58:41,239 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 19:58:41,239 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 19:58:41,239 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 19:58:41,239 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 19:58:41,239 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 19:58:41,239 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 19:58:41,239 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 -> 6eed2c2d5e428bcec2beb9a0ebe7c478639dba36839dc4adf5520912920088de [2024-11-06 19:58:41,489 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 19:58:41,499 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 19:58:41,501 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 19:58:41,502 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 19:58:41,502 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 19:58:41,503 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label49.c [2024-11-06 19:58:42,729 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 19:58:43,124 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 19:58:43,126 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label49.c [2024-11-06 19:58:43,148 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5abfa301e/7d22ed5694fb45f18a4b4d2f9fcc126e/FLAG320a28599 [2024-11-06 19:58:43,167 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/5abfa301e/7d22ed5694fb45f18a4b4d2f9fcc126e [2024-11-06 19:58:43,169 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 19:58:43,170 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 19:58:43,173 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 19:58:43,173 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 19:58:43,176 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 19:58:43,177 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:43,178 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1afc8f2a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43, skipping insertion in model container [2024-11-06 19:58:43,179 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:43,234 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 19:58:43,417 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/Problem15_label49.c[6430,6443] [2024-11-06 19:58:43,714 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:58:43,723 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 19:58:43,756 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/Problem15_label49.c[6430,6443] [2024-11-06 19:58:43,888 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:58:43,906 INFO L204 MainTranslator]: Completed translation [2024-11-06 19:58:43,906 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43 WrapperNode [2024-11-06 19:58:43,906 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 19:58:43,908 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 19:58:43,908 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 19:58:43,908 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 19:58:43,913 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:43,950 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:44,152 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1760 [2024-11-06 19:58:44,153 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 19:58:44,153 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 19:58:44,154 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 19:58:44,154 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 19:58:44,163 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:44,163 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:44,193 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:44,307 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-06 19:58:44,307 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:44,307 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:44,379 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:44,421 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:44,440 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:44,453 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:44,485 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 19:58:44,487 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 19:58:44,487 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 19:58:44,488 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 19:58:44,489 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43" (1/1) ... [2024-11-06 19:58:44,493 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:58:44,505 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:58:44,517 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-06 19:58:44,521 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-06 19:58:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 19:58:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 19:58:44,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 19:58:44,543 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 19:58:44,614 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 19:58:44,616 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 19:58:47,142 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-06 19:58:47,143 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 19:58:47,167 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 19:58:47,168 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 19:58:47,168 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:58:47 BoogieIcfgContainer [2024-11-06 19:58:47,168 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 19:58:47,170 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 19:58:47,170 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 19:58:47,175 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 19:58:47,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:58:43" (1/3) ... [2024-11-06 19:58:47,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57081b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:58:47, skipping insertion in model container [2024-11-06 19:58:47,176 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:58:43" (2/3) ... [2024-11-06 19:58:47,176 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57081b5b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:58:47, skipping insertion in model container [2024-11-06 19:58:47,177 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:58:47" (3/3) ... [2024-11-06 19:58:47,178 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label49.c [2024-11-06 19:58:47,191 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 19:58:47,191 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 19:58:47,255 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 19:58:47,267 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;@763f6c58, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 19:58:47,268 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 19:58:47,274 INFO L276 IsEmpty]: Start isEmpty. Operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:47,282 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2024-11-06 19:58:47,283 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:58:47,284 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] [2024-11-06 19:58:47,284 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:58:47,288 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:58:47,289 INFO L85 PathProgramCache]: Analyzing trace with hash 1382487458, now seen corresponding path program 1 times [2024-11-06 19:58:47,295 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:58:47,295 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1293818231] [2024-11-06 19:58:47,296 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:58:47,297 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:58:47,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:58:47,646 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:58:47,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:58:47,649 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1293818231] [2024-11-06 19:58:47,650 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1293818231] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:58:47,650 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:58:47,650 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:58:47,652 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1486536750] [2024-11-06 19:58:47,653 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:58:47,655 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:58:47,657 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:58:47,675 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:58:47,676 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:58:47,680 INFO L87 Difference]: Start difference. First operand has 424 states, 422 states have (on average 1.7772511848341233) internal successors, (750), 423 states have internal predecessors, (750), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:48,941 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.02s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 19:58:50,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:58:50,439 INFO L93 Difference]: Finished difference Result 1191 states and 2157 transitions. [2024-11-06 19:58:50,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:58:50,441 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 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 52 [2024-11-06 19:58:50,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:58:50,455 INFO L225 Difference]: With dead ends: 1191 [2024-11-06 19:58:50,455 INFO L226 Difference]: Without dead ends: 688 [2024-11-06 19:58:50,460 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:58:50,464 INFO L432 NwaCegarLoop]: 189 mSDtfsCounter, 319 mSDsluCounter, 41 mSDsCounter, 0 mSdLazyCounter, 1047 mSolverCounterSat, 286 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 2.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 319 SdHoareTripleChecker+Valid, 230 SdHoareTripleChecker+Invalid, 1333 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 286 IncrementalHoareTripleChecker+Valid, 1047 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:58:50,465 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [319 Valid, 230 Invalid, 1333 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [286 Valid, 1047 Invalid, 0 Unknown, 0 Unchecked, 2.7s Time] [2024-11-06 19:58:50,483 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2024-11-06 19:58:50,541 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 680. [2024-11-06 19:58:50,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 680 states, 679 states have (on average 1.609720176730486) internal successors, (1093), 679 states have internal predecessors, (1093), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:50,550 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 680 states to 680 states and 1093 transitions. [2024-11-06 19:58:50,552 INFO L78 Accepts]: Start accepts. Automaton has 680 states and 1093 transitions. Word has length 52 [2024-11-06 19:58:50,552 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:58:50,553 INFO L471 AbstractCegarLoop]: Abstraction has 680 states and 1093 transitions. [2024-11-06 19:58:50,553 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 17.333333333333332) internal successors, (52), 2 states have internal predecessors, (52), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:50,554 INFO L276 IsEmpty]: Start isEmpty. Operand 680 states and 1093 transitions. [2024-11-06 19:58:50,559 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-06 19:58:50,559 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:58:50,559 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:58:50,560 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 19:58:50,560 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:58:50,561 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:58:50,561 INFO L85 PathProgramCache]: Analyzing trace with hash 1878954897, now seen corresponding path program 1 times [2024-11-06 19:58:50,561 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:58:50,561 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [792024224] [2024-11-06 19:58:50,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:58:50,561 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:58:50,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:58:50,833 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:58:50,833 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:58:50,834 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [792024224] [2024-11-06 19:58:50,834 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [792024224] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:58:50,834 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:58:50,834 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:58:50,834 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [540499020] [2024-11-06 19:58:50,834 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:58:50,835 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:58:50,835 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:58:50,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:58:50,836 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:58:50,836 INFO L87 Difference]: Start difference. First operand 680 states and 1093 transitions. Second operand has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:52,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:58:52,152 INFO L93 Difference]: Finished difference Result 1964 states and 3171 transitions. [2024-11-06 19:58:52,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:58:52,153 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 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 120 [2024-11-06 19:58:52,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:58:52,158 INFO L225 Difference]: With dead ends: 1964 [2024-11-06 19:58:52,158 INFO L226 Difference]: Without dead ends: 1286 [2024-11-06 19:58:52,159 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:58:52,160 INFO L432 NwaCegarLoop]: 293 mSDtfsCounter, 282 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 799 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 282 SdHoareTripleChecker+Valid, 360 SdHoareTripleChecker+Invalid, 1097 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 799 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:58:52,160 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [282 Valid, 360 Invalid, 1097 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 799 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-06 19:58:52,162 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1286 states. [2024-11-06 19:58:52,183 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1286 to 1281. [2024-11-06 19:58:52,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1281 states, 1280 states have (on average 1.3953125) internal successors, (1786), 1280 states have internal predecessors, (1786), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:52,189 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1281 states to 1281 states and 1786 transitions. [2024-11-06 19:58:52,190 INFO L78 Accepts]: Start accepts. Automaton has 1281 states and 1786 transitions. Word has length 120 [2024-11-06 19:58:52,190 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:58:52,190 INFO L471 AbstractCegarLoop]: Abstraction has 1281 states and 1786 transitions. [2024-11-06 19:58:52,190 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 40.0) internal successors, (120), 2 states have internal predecessors, (120), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:52,190 INFO L276 IsEmpty]: Start isEmpty. Operand 1281 states and 1786 transitions. [2024-11-06 19:58:52,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 129 [2024-11-06 19:58:52,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:58:52,196 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:58:52,196 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 19:58:52,197 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:58:52,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:58:52,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1194964867, now seen corresponding path program 1 times [2024-11-06 19:58:52,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:58:52,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [94257556] [2024-11-06 19:58:52,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:58:52,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:58:52,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:58:52,447 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:58:52,447 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:58:52,447 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [94257556] [2024-11-06 19:58:52,447 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [94257556] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:58:52,447 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:58:52,448 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:58:52,448 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [936146553] [2024-11-06 19:58:52,448 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:58:52,448 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:58:52,448 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:58:52,449 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:58:52,449 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:58:52,449 INFO L87 Difference]: Start difference. First operand 1281 states and 1786 transitions. Second operand has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 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 19:58:53,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:58:53,910 INFO L93 Difference]: Finished difference Result 3766 states and 5246 transitions. [2024-11-06 19:58:53,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:58:53,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 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 19:58:53,913 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:58:53,924 INFO L225 Difference]: With dead ends: 3766 [2024-11-06 19:58:53,924 INFO L226 Difference]: Without dead ends: 2487 [2024-11-06 19:58:53,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:58:53,928 INFO L432 NwaCegarLoop]: 600 mSDtfsCounter, 276 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 896 mSolverCounterSat, 227 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 276 SdHoareTripleChecker+Valid, 637 SdHoareTripleChecker+Invalid, 1123 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 227 IncrementalHoareTripleChecker+Valid, 896 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:58:53,929 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [276 Valid, 637 Invalid, 1123 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [227 Valid, 896 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 19:58:53,933 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2487 states. [2024-11-06 19:58:53,978 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2487 to 2487. [2024-11-06 19:58:53,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2487 states, 2486 states have (on average 1.244569589702333) internal successors, (3094), 2486 states have internal predecessors, (3094), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:53,989 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2487 states to 2487 states and 3094 transitions. [2024-11-06 19:58:53,989 INFO L78 Accepts]: Start accepts. Automaton has 2487 states and 3094 transitions. Word has length 128 [2024-11-06 19:58:53,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:58:53,989 INFO L471 AbstractCegarLoop]: Abstraction has 2487 states and 3094 transitions. [2024-11-06 19:58:53,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 42.666666666666664) internal successors, (128), 3 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 19:58:53,990 INFO L276 IsEmpty]: Start isEmpty. Operand 2487 states and 3094 transitions. [2024-11-06 19:58:53,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 135 [2024-11-06 19:58:53,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:58:53,992 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:58:53,992 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 19:58:53,992 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:58:53,992 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:58:53,993 INFO L85 PathProgramCache]: Analyzing trace with hash -1487686959, now seen corresponding path program 1 times [2024-11-06 19:58:53,993 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:58:53,993 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1491362332] [2024-11-06 19:58:53,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:58:53,993 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:58:54,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:58:54,217 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 49 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:58:54,217 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:58:54,217 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1491362332] [2024-11-06 19:58:54,217 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1491362332] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:58:54,217 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:58:54,218 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:58:54,218 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2053594052] [2024-11-06 19:58:54,218 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:58:54,218 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:58:54,218 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:58:54,219 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:58:54,219 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:58:54,219 INFO L87 Difference]: Start difference. First operand 2487 states and 3094 transitions. Second operand has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:55,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:58:55,672 INFO L93 Difference]: Finished difference Result 6173 states and 7859 transitions. [2024-11-06 19:58:55,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:58:55,673 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 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 134 [2024-11-06 19:58:55,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:58:55,685 INFO L225 Difference]: With dead ends: 6173 [2024-11-06 19:58:55,685 INFO L226 Difference]: Without dead ends: 3688 [2024-11-06 19:58:55,687 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:58:55,688 INFO L432 NwaCegarLoop]: 325 mSDtfsCounter, 233 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 861 mSolverCounterSat, 276 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 233 SdHoareTripleChecker+Valid, 364 SdHoareTripleChecker+Invalid, 1137 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 276 IncrementalHoareTripleChecker+Valid, 861 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:58:55,689 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [233 Valid, 364 Invalid, 1137 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [276 Valid, 861 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 19:58:55,692 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3688 states. [2024-11-06 19:58:55,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3688 to 3387. [2024-11-06 19:58:55,739 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3387 states, 3386 states have (on average 1.2114589486119314) internal successors, (4102), 3386 states have internal predecessors, (4102), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:55,746 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3387 states to 3387 states and 4102 transitions. [2024-11-06 19:58:55,746 INFO L78 Accepts]: Start accepts. Automaton has 3387 states and 4102 transitions. Word has length 134 [2024-11-06 19:58:55,747 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:58:55,747 INFO L471 AbstractCegarLoop]: Abstraction has 3387 states and 4102 transitions. [2024-11-06 19:58:55,747 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 44.666666666666664) internal successors, (134), 2 states have internal predecessors, (134), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:55,747 INFO L276 IsEmpty]: Start isEmpty. Operand 3387 states and 4102 transitions. [2024-11-06 19:58:55,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 249 [2024-11-06 19:58:55,749 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:58:55,750 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:58:55,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 19:58:55,750 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:58:55,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:58:55,750 INFO L85 PathProgramCache]: Analyzing trace with hash 649952050, now seen corresponding path program 1 times [2024-11-06 19:58:55,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:58:55,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366460449] [2024-11-06 19:58:55,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:58:55,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:58:55,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:58:56,016 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 49 trivial. 0 not checked. [2024-11-06 19:58:56,016 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:58:56,016 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366460449] [2024-11-06 19:58:56,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366460449] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:58:56,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:58:56,017 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:58:56,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1581412402] [2024-11-06 19:58:56,017 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:58:56,018 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:58:56,018 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:58:56,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:58:56,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:58:56,019 INFO L87 Difference]: Start difference. First operand 3387 states and 4102 transitions. Second operand has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:57,292 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:58:57,292 INFO L93 Difference]: Finished difference Result 9172 states and 11160 transitions. [2024-11-06 19:58:57,293 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:58:57,293 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 248 [2024-11-06 19:58:57,293 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:58:57,312 INFO L225 Difference]: With dead ends: 9172 [2024-11-06 19:58:57,312 INFO L226 Difference]: Without dead ends: 5787 [2024-11-06 19:58:57,317 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:58:57,318 INFO L432 NwaCegarLoop]: 271 mSDtfsCounter, 117 mSDsluCounter, 46 mSDsCounter, 0 mSdLazyCounter, 915 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 117 SdHoareTripleChecker+Valid, 317 SdHoareTripleChecker+Invalid, 1110 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 915 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:58:57,318 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [117 Valid, 317 Invalid, 1110 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 915 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 19:58:57,324 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5787 states. [2024-11-06 19:58:57,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5787 to 5186. [2024-11-06 19:58:57,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5186 states, 5185 states have (on average 1.1778206364513018) internal successors, (6107), 5185 states have internal predecessors, (6107), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:57,408 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5186 states to 5186 states and 6107 transitions. [2024-11-06 19:58:57,408 INFO L78 Accepts]: Start accepts. Automaton has 5186 states and 6107 transitions. Word has length 248 [2024-11-06 19:58:57,409 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:58:57,409 INFO L471 AbstractCegarLoop]: Abstraction has 5186 states and 6107 transitions. [2024-11-06 19:58:57,409 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 66.66666666666667) internal successors, (200), 2 states have internal predecessors, (200), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:57,409 INFO L276 IsEmpty]: Start isEmpty. Operand 5186 states and 6107 transitions. [2024-11-06 19:58:57,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 330 [2024-11-06 19:58:57,413 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:58:57,413 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:58:57,413 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 19:58:57,414 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:58:57,414 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:58:57,414 INFO L85 PathProgramCache]: Analyzing trace with hash -1477243746, now seen corresponding path program 1 times [2024-11-06 19:58:57,414 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:58:57,414 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [309001922] [2024-11-06 19:58:57,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:58:57,415 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:58:57,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:58:58,141 INFO L134 CoverageAnalysis]: Checked inductivity of 179 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-06 19:58:58,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:58:58,141 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [309001922] [2024-11-06 19:58:58,141 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [309001922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:58:58,142 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:58:58,142 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:58:58,142 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1275656665] [2024-11-06 19:58:58,142 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:58:58,142 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:58:58,143 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:58:58,144 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:58:58,144 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:58:58,144 INFO L87 Difference]: Start difference. First operand 5186 states and 6107 transitions. Second operand has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:59,306 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:58:59,306 INFO L93 Difference]: Finished difference Result 10669 states and 12523 transitions. [2024-11-06 19:58:59,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:58:59,306 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 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 329 [2024-11-06 19:58:59,307 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:58:59,320 INFO L225 Difference]: With dead ends: 10669 [2024-11-06 19:58:59,320 INFO L226 Difference]: Without dead ends: 5485 [2024-11-06 19:58:59,325 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:58:59,326 INFO L432 NwaCegarLoop]: 324 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 888 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 359 SdHoareTripleChecker+Invalid, 893 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 888 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 19:58:59,326 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 359 Invalid, 893 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 888 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 19:58:59,331 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5485 states. [2024-11-06 19:58:59,392 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5485 to 5485. [2024-11-06 19:58:59,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5485 states, 5484 states have (on average 1.1692195477753464) internal successors, (6412), 5484 states have internal predecessors, (6412), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:59,411 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5485 states to 5485 states and 6412 transitions. [2024-11-06 19:58:59,411 INFO L78 Accepts]: Start accepts. Automaton has 5485 states and 6412 transitions. Word has length 329 [2024-11-06 19:58:59,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:58:59,412 INFO L471 AbstractCegarLoop]: Abstraction has 5485 states and 6412 transitions. [2024-11-06 19:58:59,412 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 93.33333333333333) internal successors, (280), 2 states have internal predecessors, (280), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:58:59,412 INFO L276 IsEmpty]: Start isEmpty. Operand 5485 states and 6412 transitions. [2024-11-06 19:58:59,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 340 [2024-11-06 19:58:59,416 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:58:59,416 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:58:59,416 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 19:58:59,416 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:58:59,417 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:58:59,417 INFO L85 PathProgramCache]: Analyzing trace with hash -68625954, now seen corresponding path program 1 times [2024-11-06 19:58:59,417 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:58:59,417 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1295205060] [2024-11-06 19:58:59,417 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:58:59,418 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:58:59,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:58:59,647 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-06 19:58:59,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:58:59,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1295205060] [2024-11-06 19:58:59,648 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1295205060] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:58:59,648 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:58:59,648 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:58:59,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1147470233] [2024-11-06 19:58:59,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:58:59,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:58:59,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:58:59,649 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:58:59,649 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:58:59,649 INFO L87 Difference]: Start difference. First operand 5485 states and 6412 transitions. Second operand has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:01,151 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:01,152 INFO L93 Difference]: Finished difference Result 12762 states and 15152 transitions. [2024-11-06 19:59:01,152 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:01,152 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 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 339 [2024-11-06 19:59:01,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:01,167 INFO L225 Difference]: With dead ends: 12762 [2024-11-06 19:59:01,167 INFO L226 Difference]: Without dead ends: 7578 [2024-11-06 19:59:01,172 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:01,172 INFO L432 NwaCegarLoop]: 277 mSDtfsCounter, 263 mSDsluCounter, 45 mSDsCounter, 0 mSdLazyCounter, 908 mSolverCounterSat, 206 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 263 SdHoareTripleChecker+Valid, 322 SdHoareTripleChecker+Invalid, 1114 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 206 IncrementalHoareTripleChecker+Valid, 908 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:01,173 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [263 Valid, 322 Invalid, 1114 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [206 Valid, 908 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 19:59:01,178 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7578 states. [2024-11-06 19:59:01,240 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7578 to 4883. [2024-11-06 19:59:01,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4883 states, 4882 states have (on average 1.1798443260958624) internal successors, (5760), 4882 states have internal predecessors, (5760), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:01,255 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4883 states to 4883 states and 5760 transitions. [2024-11-06 19:59:01,255 INFO L78 Accepts]: Start accepts. Automaton has 4883 states and 5760 transitions. Word has length 339 [2024-11-06 19:59:01,256 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:01,256 INFO L471 AbstractCegarLoop]: Abstraction has 4883 states and 5760 transitions. [2024-11-06 19:59:01,256 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 83.33333333333333) internal successors, (250), 3 states have internal predecessors, (250), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:01,257 INFO L276 IsEmpty]: Start isEmpty. Operand 4883 states and 5760 transitions. [2024-11-06 19:59:01,261 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 405 [2024-11-06 19:59:01,262 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:01,262 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:01,262 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-06 19:59:01,263 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:01,263 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:01,263 INFO L85 PathProgramCache]: Analyzing trace with hash 746881843, now seen corresponding path program 1 times [2024-11-06 19:59:01,263 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:01,263 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1808246036] [2024-11-06 19:59:01,264 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:01,264 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:01,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:01,647 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 178 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:01,647 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:01,647 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1808246036] [2024-11-06 19:59:01,647 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1808246036] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:01,647 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:01,647 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:01,648 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94183601] [2024-11-06 19:59:01,648 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:01,648 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:01,648 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:01,650 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:01,650 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:01,650 INFO L87 Difference]: Start difference. First operand 4883 states and 5760 transitions. Second operand has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:03,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:03,019 INFO L93 Difference]: Finished difference Result 11270 states and 13601 transitions. [2024-11-06 19:59:03,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:03,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 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 404 [2024-11-06 19:59:03,021 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:03,036 INFO L225 Difference]: With dead ends: 11270 [2024-11-06 19:59:03,036 INFO L226 Difference]: Without dead ends: 6688 [2024-11-06 19:59:03,040 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:03,040 INFO L432 NwaCegarLoop]: 564 mSDtfsCounter, 248 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 904 mSolverCounterSat, 223 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 603 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 223 IncrementalHoareTripleChecker+Valid, 904 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:03,041 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 603 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [223 Valid, 904 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-06 19:59:03,046 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6688 states. [2024-11-06 19:59:03,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6688 to 6087. [2024-11-06 19:59:03,135 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6087 states, 6086 states have (on average 1.1625041077883667) internal successors, (7075), 6086 states have internal predecessors, (7075), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:03,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6087 states to 6087 states and 7075 transitions. [2024-11-06 19:59:03,147 INFO L78 Accepts]: Start accepts. Automaton has 6087 states and 7075 transitions. Word has length 404 [2024-11-06 19:59:03,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:03,148 INFO L471 AbstractCegarLoop]: Abstraction has 6087 states and 7075 transitions. [2024-11-06 19:59:03,149 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 134.66666666666666) internal successors, (404), 3 states have internal predecessors, (404), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:03,149 INFO L276 IsEmpty]: Start isEmpty. Operand 6087 states and 7075 transitions. [2024-11-06 19:59:03,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 422 [2024-11-06 19:59:03,157 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:03,158 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:03,158 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 19:59:03,158 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:03,158 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:03,159 INFO L85 PathProgramCache]: Analyzing trace with hash -564953075, now seen corresponding path program 1 times [2024-11-06 19:59:03,159 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:03,159 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [979298886] [2024-11-06 19:59:03,159 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:03,159 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:03,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:03,512 INFO L134 CoverageAnalysis]: Checked inductivity of 398 backedges. 308 proven. 0 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-06 19:59:03,512 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:03,513 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [979298886] [2024-11-06 19:59:03,513 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [979298886] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:03,513 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:03,513 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:03,513 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [290395818] [2024-11-06 19:59:03,513 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:03,514 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:03,514 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:03,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:03,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:03,515 INFO L87 Difference]: Start difference. First operand 6087 states and 7075 transitions. Second operand has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:04,736 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:04,736 INFO L93 Difference]: Finished difference Result 13667 states and 16218 transitions. [2024-11-06 19:59:04,737 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:04,739 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 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 421 [2024-11-06 19:59:04,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:04,754 INFO L225 Difference]: With dead ends: 13667 [2024-11-06 19:59:04,754 INFO L226 Difference]: Without dead ends: 7881 [2024-11-06 19:59:04,759 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:04,759 INFO L432 NwaCegarLoop]: 579 mSDtfsCounter, 248 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 880 mSolverCounterSat, 242 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 248 SdHoareTripleChecker+Valid, 617 SdHoareTripleChecker+Invalid, 1122 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 242 IncrementalHoareTripleChecker+Valid, 880 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:04,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [248 Valid, 617 Invalid, 1122 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [242 Valid, 880 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 19:59:04,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7881 states. [2024-11-06 19:59:04,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7881 to 7877. [2024-11-06 19:59:04,820 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 7877 states, 7876 states have (on average 1.1452513966480447) internal successors, (9020), 7876 states have internal predecessors, (9020), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:04,830 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7877 states to 7877 states and 9020 transitions. [2024-11-06 19:59:04,830 INFO L78 Accepts]: Start accepts. Automaton has 7877 states and 9020 transitions. Word has length 421 [2024-11-06 19:59:04,831 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:04,831 INFO L471 AbstractCegarLoop]: Abstraction has 7877 states and 9020 transitions. [2024-11-06 19:59:04,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 110.66666666666667) internal successors, (332), 3 states have internal predecessors, (332), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:04,831 INFO L276 IsEmpty]: Start isEmpty. Operand 7877 states and 9020 transitions. [2024-11-06 19:59:04,837 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 430 [2024-11-06 19:59:04,837 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:04,837 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:04,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 19:59:04,838 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:04,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:04,838 INFO L85 PathProgramCache]: Analyzing trace with hash 1419669949, now seen corresponding path program 1 times [2024-11-06 19:59:04,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:04,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1850409130] [2024-11-06 19:59:04,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:04,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:04,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:05,503 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 50 proven. 155 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:05,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:05,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1850409130] [2024-11-06 19:59:05,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1850409130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:59:05,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [623308378] [2024-11-06 19:59:05,504 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:05,504 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:59:05,504 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:59:05,507 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:59:05,509 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-06 19:59:05,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:05,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 523 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:59:05,705 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:59:07,561 INFO L134 CoverageAnalysis]: Checked inductivity of 205 backedges. 99 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-06 19:59:07,562 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:59:07,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [623308378] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:07,562 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:59:07,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-06 19:59:07,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2052154969] [2024-11-06 19:59:07,563 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:07,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:07,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:07,564 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:07,564 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:59:07,565 INFO L87 Difference]: Start difference. First operand 7877 states and 9020 transitions. Second operand has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:08,989 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:08,989 INFO L93 Difference]: Finished difference Result 19641 states and 22592 transitions. [2024-11-06 19:59:08,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:08,990 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 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 429 [2024-11-06 19:59:08,990 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:09,009 INFO L225 Difference]: With dead ends: 19641 [2024-11-06 19:59:09,010 INFO L226 Difference]: Without dead ends: 9673 [2024-11-06 19:59:09,019 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 432 GetRequests, 428 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:59:09,020 INFO L432 NwaCegarLoop]: 557 mSDtfsCounter, 301 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 869 mSolverCounterSat, 292 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 590 SdHoareTripleChecker+Invalid, 1161 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 292 IncrementalHoareTripleChecker+Valid, 869 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:09,020 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 590 Invalid, 1161 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [292 Valid, 869 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-06 19:59:09,027 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9673 states. [2024-11-06 19:59:09,135 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9673 to 9673. [2024-11-06 19:59:09,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9673 states, 9672 states have (on average 1.087882547559967) internal successors, (10522), 9672 states have internal predecessors, (10522), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:09,155 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9673 states to 9673 states and 10522 transitions. [2024-11-06 19:59:09,156 INFO L78 Accepts]: Start accepts. Automaton has 9673 states and 10522 transitions. Word has length 429 [2024-11-06 19:59:09,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:09,158 INFO L471 AbstractCegarLoop]: Abstraction has 9673 states and 10522 transitions. [2024-11-06 19:59:09,158 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 108.0) internal successors, (324), 3 states have internal predecessors, (324), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:09,158 INFO L276 IsEmpty]: Start isEmpty. Operand 9673 states and 10522 transitions. [2024-11-06 19:59:09,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 575 [2024-11-06 19:59:09,168 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:09,169 INFO L215 NwaCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:09,187 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-06 19:59:09,370 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-06 19:59:09,370 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:09,370 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:09,371 INFO L85 PathProgramCache]: Analyzing trace with hash -507123401, now seen corresponding path program 1 times [2024-11-06 19:59:09,371 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:09,371 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021569781] [2024-11-06 19:59:09,371 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:09,371 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:09,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:10,778 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 251 proven. 255 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:10,779 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:10,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021569781] [2024-11-06 19:59:10,779 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021569781] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:59:10,779 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [763282709] [2024-11-06 19:59:10,779 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:10,779 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:59:10,779 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:59:10,782 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 19:59:10,783 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 19:59:11,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:11,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 692 conjuncts, 5 conjuncts are in the unsatisfiable core [2024-11-06 19:59:11,017 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:59:11,614 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 399 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:11,615 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 19:59:12,811 INFO L134 CoverageAnalysis]: Checked inductivity of 506 backedges. 399 proven. 107 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:12,812 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [763282709] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 19:59:12,812 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 19:59:12,812 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4, 4] total 10 [2024-11-06 19:59:12,812 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [935811718] [2024-11-06 19:59:12,812 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 19:59:12,814 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-06 19:59:12,814 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:12,815 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-06 19:59:12,816 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2024-11-06 19:59:12,816 INFO L87 Difference]: Start difference. First operand 9673 states and 10522 transitions. Second operand has 10 states, 10 states have (on average 135.1) internal successors, (1351), 10 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:19,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:19,353 INFO L93 Difference]: Finished difference Result 33822 states and 37264 transitions. [2024-11-06 19:59:19,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 24 states. [2024-11-06 19:59:19,354 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 135.1) internal successors, (1351), 10 states have internal predecessors, (1351), 0 states have call successors, (0), 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 574 [2024-11-06 19:59:19,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:19,392 INFO L225 Difference]: With dead ends: 33822 [2024-11-06 19:59:19,393 INFO L226 Difference]: Without dead ends: 24450 [2024-11-06 19:59:19,401 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1188 GetRequests, 1162 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 179 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2024-11-06 19:59:19,402 INFO L432 NwaCegarLoop]: 72 mSDtfsCounter, 6410 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 7660 mSolverCounterSat, 2217 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 5.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 6410 SdHoareTripleChecker+Valid, 282 SdHoareTripleChecker+Invalid, 9877 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2217 IncrementalHoareTripleChecker+Valid, 7660 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 6.0s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:19,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [6410 Valid, 282 Invalid, 9877 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2217 Valid, 7660 Invalid, 0 Unknown, 0 Unchecked, 6.0s Time] [2024-11-06 19:59:19,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24450 states. [2024-11-06 19:59:19,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24450 to 19255. [2024-11-06 19:59:19,601 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19255 states, 19254 states have (on average 1.0747896540978499) internal successors, (20694), 19254 states have internal predecessors, (20694), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:19,623 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19255 states to 19255 states and 20694 transitions. [2024-11-06 19:59:19,624 INFO L78 Accepts]: Start accepts. Automaton has 19255 states and 20694 transitions. Word has length 574 [2024-11-06 19:59:19,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:19,625 INFO L471 AbstractCegarLoop]: Abstraction has 19255 states and 20694 transitions. [2024-11-06 19:59:19,626 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 135.1) internal successors, (1351), 10 states have internal predecessors, (1351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:19,626 INFO L276 IsEmpty]: Start isEmpty. Operand 19255 states and 20694 transitions. [2024-11-06 19:59:19,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2024-11-06 19:59:19,636 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:19,636 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:19,653 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 19:59:19,840 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:59:19,841 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:19,841 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:19,841 INFO L85 PathProgramCache]: Analyzing trace with hash 1083835968, now seen corresponding path program 1 times [2024-11-06 19:59:19,841 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:19,841 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622196309] [2024-11-06 19:59:19,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:19,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:19,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:20,490 INFO L134 CoverageAnalysis]: Checked inductivity of 817 backedges. 478 proven. 0 refuted. 0 times theorem prover too weak. 339 trivial. 0 not checked. [2024-11-06 19:59:20,490 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:20,491 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622196309] [2024-11-06 19:59:20,491 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [622196309] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:20,491 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:20,491 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:20,491 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [909263001] [2024-11-06 19:59:20,491 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:20,492 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:20,492 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:20,493 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:20,493 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:20,493 INFO L87 Difference]: Start difference. First operand 19255 states and 20694 transitions. Second operand has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:21,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:21,426 INFO L93 Difference]: Finished difference Result 42094 states and 45195 transitions. [2024-11-06 19:59:21,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:21,426 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 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 701 [2024-11-06 19:59:21,428 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:21,470 INFO L225 Difference]: With dead ends: 42094 [2024-11-06 19:59:21,470 INFO L226 Difference]: Without dead ends: 23140 [2024-11-06 19:59:21,488 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:21,489 INFO L432 NwaCegarLoop]: 535 mSDtfsCounter, 218 mSDsluCounter, 39 mSDsCounter, 0 mSdLazyCounter, 785 mSolverCounterSat, 93 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 218 SdHoareTripleChecker+Valid, 574 SdHoareTripleChecker+Invalid, 878 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 93 IncrementalHoareTripleChecker+Valid, 785 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:21,489 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [218 Valid, 574 Invalid, 878 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [93 Valid, 785 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 19:59:21,506 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23140 states. [2024-11-06 19:59:21,759 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23140 to 22241. [2024-11-06 19:59:21,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22241 states, 22240 states have (on average 1.0680755395683452) internal successors, (23754), 22240 states have internal predecessors, (23754), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:21,807 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22241 states to 22241 states and 23754 transitions. [2024-11-06 19:59:21,808 INFO L78 Accepts]: Start accepts. Automaton has 22241 states and 23754 transitions. Word has length 701 [2024-11-06 19:59:21,809 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:21,809 INFO L471 AbstractCegarLoop]: Abstraction has 22241 states and 23754 transitions. [2024-11-06 19:59:21,809 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.33333333333334) internal successors, (439), 3 states have internal predecessors, (439), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:21,809 INFO L276 IsEmpty]: Start isEmpty. Operand 22241 states and 23754 transitions. [2024-11-06 19:59:21,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 750 [2024-11-06 19:59:21,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:21,825 INFO L215 NwaCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:21,825 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-06 19:59:21,825 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:21,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:21,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1141578840, now seen corresponding path program 1 times [2024-11-06 19:59:21,826 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:21,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290871644] [2024-11-06 19:59:21,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:21,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:21,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:22,587 INFO L134 CoverageAnalysis]: Checked inductivity of 920 backedges. 504 proven. 0 refuted. 0 times theorem prover too weak. 416 trivial. 0 not checked. [2024-11-06 19:59:22,587 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:22,587 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290871644] [2024-11-06 19:59:22,587 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [290871644] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:22,587 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:22,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 19:59:22,588 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1712358772] [2024-11-06 19:59:22,588 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:22,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:59:22,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:22,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:59:22,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:59:22,590 INFO L87 Difference]: Start difference. First operand 22241 states and 23754 transitions. Second operand has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:24,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:24,184 INFO L93 Difference]: Finished difference Result 51083 states and 54403 transitions. [2024-11-06 19:59:24,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:59:24,185 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 0 states have call successors, (0), 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 749 [2024-11-06 19:59:24,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:24,232 INFO L225 Difference]: With dead ends: 51083 [2024-11-06 19:59:24,232 INFO L226 Difference]: Without dead ends: 29143 [2024-11-06 19:59:24,242 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 19:59:24,243 INFO L432 NwaCegarLoop]: 50 mSDtfsCounter, 523 mSDsluCounter, 48 mSDsCounter, 0 mSdLazyCounter, 1703 mSolverCounterSat, 328 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 523 SdHoareTripleChecker+Valid, 98 SdHoareTripleChecker+Invalid, 2031 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 328 IncrementalHoareTripleChecker+Valid, 1703 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:24,243 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [523 Valid, 98 Invalid, 2031 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [328 Valid, 1703 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-06 19:59:24,260 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29143 states. [2024-11-06 19:59:24,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29143 to 25532. [2024-11-06 19:59:24,490 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25532 states, 25531 states have (on average 1.0662332066899063) internal successors, (27222), 25531 states have internal predecessors, (27222), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:24,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25532 states to 25532 states and 27222 transitions. [2024-11-06 19:59:24,522 INFO L78 Accepts]: Start accepts. Automaton has 25532 states and 27222 transitions. Word has length 749 [2024-11-06 19:59:24,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:24,523 INFO L471 AbstractCegarLoop]: Abstraction has 25532 states and 27222 transitions. [2024-11-06 19:59:24,524 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 110.25) internal successors, (441), 4 states have internal predecessors, (441), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:24,524 INFO L276 IsEmpty]: Start isEmpty. Operand 25532 states and 27222 transitions. [2024-11-06 19:59:24,541 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 854 [2024-11-06 19:59:24,542 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:24,543 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:24,543 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-06 19:59:24,543 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:24,544 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:24,544 INFO L85 PathProgramCache]: Analyzing trace with hash -1557373609, now seen corresponding path program 1 times [2024-11-06 19:59:24,544 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:24,544 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [588717246] [2024-11-06 19:59:24,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:24,544 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:24,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:26,123 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 575 proven. 511 refuted. 0 times theorem prover too weak. 266 trivial. 0 not checked. [2024-11-06 19:59:26,123 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:26,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [588717246] [2024-11-06 19:59:26,123 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [588717246] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:59:26,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [912607147] [2024-11-06 19:59:26,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:26,124 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:59:26,124 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:59:26,126 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:59:26,129 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-06 19:59:26,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:26,372 INFO L255 TraceCheckSpWp]: Trace formula consists of 1012 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:59:26,379 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:59:26,543 INFO L134 CoverageAnalysis]: Checked inductivity of 1352 backedges. 710 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2024-11-06 19:59:26,543 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:59:26,543 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [912607147] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:26,543 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:59:26,543 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 6 [2024-11-06 19:59:26,545 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [791797808] [2024-11-06 19:59:26,545 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:26,546 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:26,546 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:26,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:26,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:59:26,547 INFO L87 Difference]: Start difference. First operand 25532 states and 27222 transitions. Second operand has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:27,618 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:27,618 INFO L93 Difference]: Finished difference Result 49863 states and 53212 transitions. [2024-11-06 19:59:27,618 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:27,619 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 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 853 [2024-11-06 19:59:27,619 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:27,656 INFO L225 Difference]: With dead ends: 49863 [2024-11-06 19:59:27,656 INFO L226 Difference]: Without dead ends: 24632 [2024-11-06 19:59:27,674 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 857 GetRequests, 853 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:59:27,675 INFO L432 NwaCegarLoop]: 511 mSDtfsCounter, 191 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 819 mSolverCounterSat, 103 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 191 SdHoareTripleChecker+Valid, 545 SdHoareTripleChecker+Invalid, 922 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 103 IncrementalHoareTripleChecker+Valid, 819 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:27,675 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [191 Valid, 545 Invalid, 922 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [103 Valid, 819 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-06 19:59:27,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24632 states. [2024-11-06 19:59:27,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24632 to 24632. [2024-11-06 19:59:27,898 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24632 states, 24631 states have (on average 1.0518452356786163) internal successors, (25908), 24631 states have internal predecessors, (25908), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:27,928 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24632 states to 24632 states and 25908 transitions. [2024-11-06 19:59:27,928 INFO L78 Accepts]: Start accepts. Automaton has 24632 states and 25908 transitions. Word has length 853 [2024-11-06 19:59:27,930 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:27,930 INFO L471 AbstractCegarLoop]: Abstraction has 24632 states and 25908 transitions. [2024-11-06 19:59:27,930 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 159.33333333333334) internal successors, (478), 3 states have internal predecessors, (478), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:27,930 INFO L276 IsEmpty]: Start isEmpty. Operand 24632 states and 25908 transitions. [2024-11-06 19:59:27,951 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 913 [2024-11-06 19:59:27,951 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:27,952 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:27,970 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-06 19:59:28,152 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:59:28,152 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:28,153 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:28,153 INFO L85 PathProgramCache]: Analyzing trace with hash 57523134, now seen corresponding path program 1 times [2024-11-06 19:59:28,153 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:28,153 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [268917402] [2024-11-06 19:59:28,153 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:28,153 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:28,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:28,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1769 backedges. 773 proven. 0 refuted. 0 times theorem prover too weak. 996 trivial. 0 not checked. [2024-11-06 19:59:28,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:28,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [268917402] [2024-11-06 19:59:28,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [268917402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:28,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:28,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:28,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116336699] [2024-11-06 19:59:28,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:28,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:28,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:28,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:28,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:28,488 INFO L87 Difference]: Start difference. First operand 24632 states and 25908 transitions. Second operand has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:29,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:29,548 INFO L93 Difference]: Finished difference Result 54043 states and 56967 transitions. [2024-11-06 19:59:29,548 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:29,549 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 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 912 [2024-11-06 19:59:29,549 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:29,579 INFO L225 Difference]: With dead ends: 54043 [2024-11-06 19:59:29,579 INFO L226 Difference]: Without dead ends: 29712 [2024-11-06 19:59:29,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:29,598 INFO L432 NwaCegarLoop]: 184 mSDtfsCounter, 234 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 864 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 234 SdHoareTripleChecker+Valid, 217 SdHoareTripleChecker+Invalid, 1012 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 864 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:29,599 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [234 Valid, 217 Invalid, 1012 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 864 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 19:59:29,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29712 states. [2024-11-06 19:59:29,799 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29712 to 27320. [2024-11-06 19:59:29,814 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27320 states, 27319 states have (on average 1.052088290200959) internal successors, (28742), 27319 states have internal predecessors, (28742), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:29,837 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27320 states to 27320 states and 28742 transitions. [2024-11-06 19:59:29,837 INFO L78 Accepts]: Start accepts. Automaton has 27320 states and 28742 transitions. Word has length 912 [2024-11-06 19:59:29,838 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:29,838 INFO L471 AbstractCegarLoop]: Abstraction has 27320 states and 28742 transitions. [2024-11-06 19:59:29,838 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 148.33333333333334) internal successors, (445), 3 states have internal predecessors, (445), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:29,838 INFO L276 IsEmpty]: Start isEmpty. Operand 27320 states and 28742 transitions. [2024-11-06 19:59:29,855 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 951 [2024-11-06 19:59:29,855 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:29,856 INFO L215 NwaCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:29,856 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-06 19:59:29,856 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:29,856 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:29,856 INFO L85 PathProgramCache]: Analyzing trace with hash 1013848060, now seen corresponding path program 1 times [2024-11-06 19:59:29,857 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:29,857 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1732888522] [2024-11-06 19:59:29,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:29,857 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:30,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:30,627 INFO L134 CoverageAnalysis]: Checked inductivity of 1849 backedges. 299 proven. 0 refuted. 0 times theorem prover too weak. 1550 trivial. 0 not checked. [2024-11-06 19:59:30,628 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:30,628 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1732888522] [2024-11-06 19:59:30,628 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1732888522] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:30,628 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:30,628 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 19:59:30,630 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820614126] [2024-11-06 19:59:30,630 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:30,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:59:30,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:30,632 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:59:30,632 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:59:30,632 INFO L87 Difference]: Start difference. First operand 27320 states and 28742 transitions. Second operand has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:32,173 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:32,174 INFO L93 Difference]: Finished difference Result 62414 states and 65612 transitions. [2024-11-06 19:59:32,174 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:59:32,174 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 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 950 [2024-11-06 19:59:32,175 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:32,201 INFO L225 Difference]: With dead ends: 62414 [2024-11-06 19:59:32,201 INFO L226 Difference]: Without dead ends: 30013 [2024-11-06 19:59:32,216 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 19:59:32,216 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 688 mSDsluCounter, 34 mSDsCounter, 0 mSdLazyCounter, 1499 mSolverCounterSat, 320 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 688 SdHoareTripleChecker+Valid, 459 SdHoareTripleChecker+Invalid, 1819 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 320 IncrementalHoareTripleChecker+Valid, 1499 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:32,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [688 Valid, 459 Invalid, 1819 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [320 Valid, 1499 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 19:59:32,231 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30013 states. [2024-11-06 19:59:32,475 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30013 to 23417. [2024-11-06 19:59:32,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23417 states, 23416 states have (on average 1.0297659719849674) internal successors, (24113), 23416 states have internal predecessors, (24113), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:32,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23417 states to 23417 states and 24113 transitions. [2024-11-06 19:59:32,504 INFO L78 Accepts]: Start accepts. Automaton has 23417 states and 24113 transitions. Word has length 950 [2024-11-06 19:59:32,505 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:32,505 INFO L471 AbstractCegarLoop]: Abstraction has 23417 states and 24113 transitions. [2024-11-06 19:59:32,505 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 87.0) internal successors, (348), 4 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:32,505 INFO L276 IsEmpty]: Start isEmpty. Operand 23417 states and 24113 transitions. [2024-11-06 19:59:32,519 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 981 [2024-11-06 19:59:32,519 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:32,520 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:32,520 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-06 19:59:32,520 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:32,521 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:32,521 INFO L85 PathProgramCache]: Analyzing trace with hash -949870862, now seen corresponding path program 1 times [2024-11-06 19:59:32,521 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:32,521 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1604455479] [2024-11-06 19:59:32,521 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:32,522 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:32,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:33,406 INFO L134 CoverageAnalysis]: Checked inductivity of 1534 backedges. 892 proven. 0 refuted. 0 times theorem prover too weak. 642 trivial. 0 not checked. [2024-11-06 19:59:33,410 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:33,410 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1604455479] [2024-11-06 19:59:33,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1604455479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:33,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:33,413 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:33,413 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008459997] [2024-11-06 19:59:33,413 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:33,414 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:33,414 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:33,415 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:33,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:33,415 INFO L87 Difference]: Start difference. First operand 23417 states and 24113 transitions. Second operand has 3 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:34,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:34,368 INFO L93 Difference]: Finished difference Result 48325 states and 49788 transitions. [2024-11-06 19:59:34,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:34,369 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 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 980 [2024-11-06 19:59:34,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:34,392 INFO L225 Difference]: With dead ends: 48325 [2024-11-06 19:59:34,392 INFO L226 Difference]: Without dead ends: 25209 [2024-11-06 19:59:34,406 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:34,407 INFO L432 NwaCegarLoop]: 457 mSDtfsCounter, 72 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 728 mSolverCounterSat, 121 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 72 SdHoareTripleChecker+Valid, 482 SdHoareTripleChecker+Invalid, 849 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 121 IncrementalHoareTripleChecker+Valid, 728 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:34,407 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [72 Valid, 482 Invalid, 849 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [121 Valid, 728 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 19:59:34,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25209 states. [2024-11-06 19:59:34,629 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25209 to 21915. [2024-11-06 19:59:34,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21915 states, 21914 states have (on average 1.028474947522132) internal successors, (22538), 21914 states have internal predecessors, (22538), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:34,668 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21915 states to 21915 states and 22538 transitions. [2024-11-06 19:59:34,669 INFO L78 Accepts]: Start accepts. Automaton has 21915 states and 22538 transitions. Word has length 980 [2024-11-06 19:59:34,669 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:34,669 INFO L471 AbstractCegarLoop]: Abstraction has 21915 states and 22538 transitions. [2024-11-06 19:59:34,670 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 201.66666666666666) internal successors, (605), 3 states have internal predecessors, (605), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:34,670 INFO L276 IsEmpty]: Start isEmpty. Operand 21915 states and 22538 transitions. [2024-11-06 19:59:34,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1065 [2024-11-06 19:59:34,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:34,692 INFO L215 NwaCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:34,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-11-06 19:59:34,693 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:34,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:34,693 INFO L85 PathProgramCache]: Analyzing trace with hash 1902127356, now seen corresponding path program 1 times [2024-11-06 19:59:34,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:34,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1864224654] [2024-11-06 19:59:34,694 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:34,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:34,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:35,409 INFO L134 CoverageAnalysis]: Checked inductivity of 1842 backedges. 1472 proven. 0 refuted. 0 times theorem prover too weak. 370 trivial. 0 not checked. [2024-11-06 19:59:35,409 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:35,409 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1864224654] [2024-11-06 19:59:35,410 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1864224654] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:35,410 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:35,410 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:35,410 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554056171] [2024-11-06 19:59:35,410 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:35,411 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:35,411 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:35,412 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:35,412 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:35,412 INFO L87 Difference]: Start difference. First operand 21915 states and 22538 transitions. Second operand has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:36,316 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:36,316 INFO L93 Difference]: Finished difference Result 48329 states and 49702 transitions. [2024-11-06 19:59:36,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:36,317 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 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 1064 [2024-11-06 19:59:36,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:36,337 INFO L225 Difference]: With dead ends: 48329 [2024-11-06 19:59:36,338 INFO L226 Difference]: Without dead ends: 26715 [2024-11-06 19:59:36,351 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:36,352 INFO L432 NwaCegarLoop]: 115 mSDtfsCounter, 104 mSDsluCounter, 21 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 156 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 136 SdHoareTripleChecker+Invalid, 976 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 156 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:36,352 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 136 Invalid, 976 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [156 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 19:59:36,365 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 26715 states. [2024-11-06 19:59:36,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 26715 to 23111. [2024-11-06 19:59:36,549 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23111 states, 23110 states have (on average 1.0279099956728688) internal successors, (23755), 23110 states have internal predecessors, (23755), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:36,566 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23111 states to 23111 states and 23755 transitions. [2024-11-06 19:59:36,567 INFO L78 Accepts]: Start accepts. Automaton has 23111 states and 23755 transitions. Word has length 1064 [2024-11-06 19:59:36,567 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:36,567 INFO L471 AbstractCegarLoop]: Abstraction has 23111 states and 23755 transitions. [2024-11-06 19:59:36,567 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 249.0) internal successors, (747), 3 states have internal predecessors, (747), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:36,568 INFO L276 IsEmpty]: Start isEmpty. Operand 23111 states and 23755 transitions. [2024-11-06 19:59:36,594 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1693 [2024-11-06 19:59:36,594 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:36,595 INFO L215 NwaCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:36,595 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-06 19:59:36,595 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:36,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:36,596 INFO L85 PathProgramCache]: Analyzing trace with hash -795674901, now seen corresponding path program 1 times [2024-11-06 19:59:36,596 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:36,596 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899054210] [2024-11-06 19:59:36,596 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:36,596 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:36,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:37,200 INFO L134 CoverageAnalysis]: Checked inductivity of 6183 backedges. 4139 proven. 0 refuted. 0 times theorem prover too weak. 2044 trivial. 0 not checked. [2024-11-06 19:59:37,201 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:37,201 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899054210] [2024-11-06 19:59:37,201 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899054210] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:37,201 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:37,201 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:37,201 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1302360773] [2024-11-06 19:59:37,201 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:37,202 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:37,202 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:37,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:37,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:37,203 INFO L87 Difference]: Start difference. First operand 23111 states and 23755 transitions. Second operand has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:37,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:37,940 INFO L93 Difference]: Finished difference Result 40197 states and 41296 transitions. [2024-11-06 19:59:37,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:37,941 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 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 1692 [2024-11-06 19:59:37,942 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:37,942 INFO L225 Difference]: With dead ends: 40197 [2024-11-06 19:59:37,942 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 19:59:37,954 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:37,955 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 173 mSDsluCounter, 30 mSDsCounter, 0 mSdLazyCounter, 694 mSolverCounterSat, 53 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 173 SdHoareTripleChecker+Valid, 122 SdHoareTripleChecker+Invalid, 747 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 53 IncrementalHoareTripleChecker+Valid, 694 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:37,955 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [173 Valid, 122 Invalid, 747 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [53 Valid, 694 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:59:37,955 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 19:59:37,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 19:59:37,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:37,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 19:59:37,956 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1692 [2024-11-06 19:59:37,956 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:37,956 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 19:59:37,957 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 188.0) internal successors, (564), 3 states have internal predecessors, (564), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:37,957 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 19:59:37,957 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 19:59:37,960 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 19:59:37,960 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-06 19:59:37,963 INFO L407 BasicCegarLoop]: Path program histogram: [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:37,964 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 19:59:41,067 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 19:59:41,087 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:59:41 BoogieIcfgContainer [2024-11-06 19:59:41,087 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 19:59:41,088 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 19:59:41,088 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 19:59:41,088 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 19:59:41,089 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:58:47" (3/4) ... [2024-11-06 19:59:41,091 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-06 19:59:41,122 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2024-11-06 19:59:41,124 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-06 19:59:41,126 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-06 19:59:41,128 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-06 19:59:41,311 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-06 19:59:41,311 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-06 19:59:41,312 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 19:59:41,313 INFO L158 Benchmark]: Toolchain (without parser) took 58142.32ms. Allocated memory was 117.4MB in the beginning and 1.3GB in the end (delta: 1.2GB). Free memory was 87.3MB in the beginning and 388.6MB in the end (delta: -301.4MB). Peak memory consumption was 923.2MB. Max. memory is 16.1GB. [2024-11-06 19:59:41,313 INFO L158 Benchmark]: CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 19:59:41,313 INFO L158 Benchmark]: CACSL2BoogieTranslator took 735.07ms. Allocated memory is still 117.4MB. Free memory was 87.1MB in the beginning and 59.1MB in the end (delta: 28.0MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. [2024-11-06 19:59:41,314 INFO L158 Benchmark]: Boogie Procedure Inliner took 245.00ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 59.1MB in the beginning and 92.5MB in the end (delta: -33.3MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. [2024-11-06 19:59:41,315 INFO L158 Benchmark]: Boogie Preprocessor took 332.39ms. Allocated memory is still 151.0MB. Free memory was 92.5MB in the beginning and 84.4MB in the end (delta: 8.1MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. [2024-11-06 19:59:41,315 INFO L158 Benchmark]: RCFGBuilder took 2681.37ms. Allocated memory was 151.0MB in the beginning and 302.0MB in the end (delta: 151.0MB). Free memory was 84.4MB in the beginning and 123.6MB in the end (delta: -39.3MB). Peak memory consumption was 145.4MB. Max. memory is 16.1GB. [2024-11-06 19:59:41,316 INFO L158 Benchmark]: TraceAbstraction took 53916.69ms. Allocated memory was 302.0MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 123.6MB in the beginning and 409.5MB in the end (delta: -285.9MB). Peak memory consumption was 897.5MB. Max. memory is 16.1GB. [2024-11-06 19:59:41,316 INFO L158 Benchmark]: Witness Printer took 224.38ms. Allocated memory is still 1.3GB. Free memory was 409.5MB in the beginning and 388.6MB in the end (delta: 20.9MB). Peak memory consumption was 16.8MB. Max. memory is 16.1GB. [2024-11-06 19:59:41,317 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27ms. Allocated memory is still 117.4MB. Free memory is still 81.9MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 735.07ms. Allocated memory is still 117.4MB. Free memory was 87.1MB in the beginning and 59.1MB in the end (delta: 28.0MB). Peak memory consumption was 59.0MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 245.00ms. Allocated memory was 117.4MB in the beginning and 151.0MB in the end (delta: 33.6MB). Free memory was 59.1MB in the beginning and 92.5MB in the end (delta: -33.3MB). Peak memory consumption was 38.1MB. Max. memory is 16.1GB. * Boogie Preprocessor took 332.39ms. Allocated memory is still 151.0MB. Free memory was 92.5MB in the beginning and 84.4MB in the end (delta: 8.1MB). Peak memory consumption was 53.5MB. Max. memory is 16.1GB. * RCFGBuilder took 2681.37ms. Allocated memory was 151.0MB in the beginning and 302.0MB in the end (delta: 151.0MB). Free memory was 84.4MB in the beginning and 123.6MB in the end (delta: -39.3MB). Peak memory consumption was 145.4MB. Max. memory is 16.1GB. * TraceAbstraction took 53916.69ms. Allocated memory was 302.0MB in the beginning and 1.3GB in the end (delta: 1.0GB). Free memory was 123.6MB in the beginning and 409.5MB in the end (delta: -285.9MB). Peak memory consumption was 897.5MB. Max. memory is 16.1GB. * Witness Printer took 224.38ms. Allocated memory is still 1.3GB. Free memory was 409.5MB in the beginning and 388.6MB in the end (delta: 20.9MB). Peak memory consumption was 16.8MB. 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: 173]: 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, 424 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 50.7s, OverallIterations: 19, TraceHistogramMax: 11, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.2s, AutomataDifference: 30.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 11005 SdHoareTripleChecker+Valid, 28.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 11005 mSDsluCounter, 7314 SdHoareTripleChecker+Invalid, 23.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 894 mSDsCounter, 5789 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 24539 IncrementalHoareTripleChecker+Invalid, 30328 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 5789 mSolverCounterUnsat, 6420 mSDtfsCounter, 24539 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 2522 GetRequests, 2470 SyntacticMatches, 0 SemanticMatches, 52 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 181 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=27320occurred in iteration=15, InterpolantAutomatonStates: 80, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 2.9s AutomataMinimizationTime, 19 MinimizatonAttempts, 29806 StatesRemovedByMinimization, 14 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 13.2s InterpolantComputationTime, 12935 NumberOfCodeBlocks, 12935 NumberOfCodeBlocksAsserted, 22 NumberOfCheckSat, 13486 ConstructedInterpolants, 0 QuantifiedInterpolants, 35173 SizeOfPredicates, 1 NumberOfNonLiveVariables, 2227 ConjunctsInSsa, 9 ConjunctsInUnsatCore, 23 InterpolantComputations, 18 PerfectInterpolantSequences, 19551/20686 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: 1776]: Loop Invariant Derived loop invariant: ((((((((((((((((((((((((((((((((0 <= ((long long) a29 + 15)) && (0 <= ((long long) a0 + 60))) && (((long long) a4 + 86) <= 0)) && (a29 <= 599998)) && (3 == a2)) || ((((2 == a2) && (0 <= ((long long) a29 + 127))) && (((long long) a0 + 99) <= 0)) && (a29 <= 599998))) || ((((((long long) 89 + a4) <= 0) && (a29 <= 599998)) && (a2 == 4)) && ((43 < a29) || (((long long) a29 + 15) < 0)))) || ((((long long) a0 + 147) <= 0) && (a2 == 4))) || ((((a29 <= 41) && (2 == a2)) && (0 <= ((long long) a29 + 127))) && (((long long) 98 + a0) <= 0))) || ((((a29 <= 41) && (0 <= ((long long) a29 + 127))) && (((long long) 98 + a0) <= 0)) && (5 <= a2))) || ((((2 == a2) && (0 <= ((long long) a29 + 127))) && (((long long) 89 + a4) <= 0)) && (a29 <= 599998))) || (((((0 <= ((long long) 97 + a0)) && (44 <= a29)) && (((long long) 89 + a4) <= 0)) && (a29 <= 599998)) && (3 == a2))) || ((2 == a2) && (((long long) a0 + 147) <= 0))) || (((2 == a2) && (((long long) 89 + a4) <= 0)) && (((long long) a29 + 107481) <= 0))) || ((((2 == a2) && (0 <= ((long long) a0 + 60))) && (((long long) a29 + 107481) <= 0)) && (((long long) a4 + 86) <= 0))) || ((((long long) a0 + 147) <= 0) && (a2 == 1))) || ((((((long long) 89 + a4) <= 0) && (a2 == 1)) && (a29 <= 599998)) && (((long long) a0 + 61) <= 0))) || (((a29 <= 41) && (0 <= ((long long) a29 + 127))) && (a2 == 1))) || (((((long long) 107 + a0) <= 0) && (5 <= a2)) && (((long long) a29 + 127) <= 0))) || (((((2 == a2) && (0 <= ((long long) a29 + 127))) && (0 <= ((long long) a0 + 60))) && (((long long) a4 + 86) <= 0)) && (a29 <= 599998))) || (((134656 <= a29) && (((long long) 98 + a0) <= 0)) && (5 <= a2))) || ((((((0 <= ((long long) 97 + a0)) && (0 <= ((long long) a29 + 127))) && (((long long) a4 + 86) <= 0)) && (((long long) a29 + 16) <= 0)) && (3 == a2)) && (((long long) a0 + 61) <= 0))) || (((((0 <= ((long long) a29 + 127)) && (0 <= ((long long) a0 + 60))) && (5 <= a2)) && (((long long) a4 + 86) <= 0)) && (a29 <= 599998))) || ((((long long) a0 + 99) <= 0) && (((long long) 89 + a4) <= 0))) || ((((0 <= ((long long) a29 + 127)) && (((long long) 98 + a0) <= 0)) && (a29 <= 599998)) && (a2 == 4))) || ((((0 <= ((long long) a29 + 127)) && (((long long) 89 + a4) <= 0)) && (5 <= a2)) && (a29 <= 599998))) || ((((long long) a0 + 99) <= 0) && (3 == a2))) || (((((0 <= ((long long) a29 + 127)) && (0 <= ((long long) a0 + 60))) && (((long long) a4 + 86) <= 0)) && (a29 <= 599998)) && (a2 == 4))) || (((((long long) 89 + a4) <= 0) && (3 == a2)) && (((long long) a29 + 127) <= 0))) || (((a2 == 1) && (((long long) a4 + 86) <= 0)) && (((long long) a29 + 127) <= 0))) || (((a29 <= 41) && (a2 == 1)) && (((long long) a0 + 61) <= 0))) || ((((long long) a0 + 147) <= 0) && (5 <= a2))) RESULT: Ultimate proved your program to be correct! [2024-11-06 19:59:41,349 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