./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem15_label59.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_label59.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', '685efd9995e3559fa33c98b3c3a918c092f08496a4c3c16e54af7b7a4363265b'] 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_label59.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 685efd9995e3559fa33c98b3c3a918c092f08496a4c3c16e54af7b7a4363265b --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 19:59:23,837 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 19:59:23,916 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 19:59:23,919 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 19:59:23,919 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 19:59:23,941 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 19:59:23,941 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 19:59:23,943 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 19:59:23,943 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 19:59:23,943 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 19:59:23,943 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 19:59:23,944 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 19:59:23,944 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 19:59:23,944 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 19:59:23,944 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 19:59:23,944 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 19:59:23,944 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 19:59:23,944 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 19:59:23,944 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 19:59:23,944 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 19:59:23,944 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 19:59:23,945 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 19:59:23,945 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 19:59:23,945 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 19:59:23,945 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 19:59:23,945 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 19:59:23,945 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 19:59:23,945 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 19:59:23,945 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 19:59:23,945 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 19:59:23,945 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 19:59:23,947 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 19:59:23,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:59:23,947 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 19:59:23,947 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 19:59:23,947 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 19:59:23,947 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 19:59:23,947 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 19:59:23,947 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 19:59:23,947 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 19:59:23,947 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 19:59:23,948 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 19:59:23,948 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 -> 685efd9995e3559fa33c98b3c3a918c092f08496a4c3c16e54af7b7a4363265b [2024-11-06 19:59:24,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 19:59:24,167 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 19:59:24,171 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 19:59:24,172 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 19:59:24,172 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 19:59:24,173 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem15_label59.c [2024-11-06 19:59:25,268 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 19:59:25,548 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 19:59:25,550 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem15_label59.c [2024-11-06 19:59:25,564 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0851b5258/e3ea1c2235eb467c8f74264cbb54a98d/FLAG1f26664c9 [2024-11-06 19:59:25,576 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/0851b5258/e3ea1c2235eb467c8f74264cbb54a98d [2024-11-06 19:59:25,578 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 19:59:25,580 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 19:59:25,581 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 19:59:25,581 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 19:59:25,584 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 19:59:25,584 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:59:25" (1/1) ... [2024-11-06 19:59:25,585 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7a595b22 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:25, skipping insertion in model container [2024-11-06 19:59:25,585 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:59:25" (1/1) ... [2024-11-06 19:59:25,626 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 19:59:25,751 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_label59.c[6635,6648] [2024-11-06 19:59:25,963 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:59:25,971 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 19:59:25,988 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_label59.c[6635,6648] [2024-11-06 19:59:26,090 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:59:26,103 INFO L204 MainTranslator]: Completed translation [2024-11-06 19:59:26,104 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26 WrapperNode [2024-11-06 19:59:26,104 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 19:59:26,105 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 19:59:26,105 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 19:59:26,105 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 19:59:26,111 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26" (1/1) ... [2024-11-06 19:59:26,127 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26" (1/1) ... [2024-11-06 19:59:26,282 INFO L138 Inliner]: procedures = 15, calls = 9, calls flagged for inlining = 4, calls inlined = 4, statements flattened = 1760 [2024-11-06 19:59:26,283 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 19:59:26,283 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 19:59:26,283 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 19:59:26,284 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 19:59:26,289 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26" (1/1) ... [2024-11-06 19:59:26,290 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26" (1/1) ... [2024-11-06 19:59:26,309 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26" (1/1) ... [2024-11-06 19:59:26,371 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 19:59:26,372 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26" (1/1) ... [2024-11-06 19:59:26,372 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26" (1/1) ... [2024-11-06 19:59:26,443 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26" (1/1) ... [2024-11-06 19:59:26,455 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26" (1/1) ... [2024-11-06 19:59:26,472 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26" (1/1) ... [2024-11-06 19:59:26,481 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26" (1/1) ... [2024-11-06 19:59:26,505 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 19:59:26,507 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 19:59:26,507 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 19:59:26,507 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 19:59:26,507 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26" (1/1) ... [2024-11-06 19:59:26,511 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:59:26,520 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:59:26,529 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 19:59:26,534 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 19:59:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 19:59:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 19:59:26,547 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 19:59:26,547 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 19:59:26,602 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 19:59:26,604 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 19:59:28,356 INFO L? ?]: Removed 246 outVars from TransFormulas that were not future-live. [2024-11-06 19:59:28,356 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 19:59:28,373 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 19:59:28,373 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 19:59:28,376 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:59:28 BoogieIcfgContainer [2024-11-06 19:59:28,376 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 19:59:28,378 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 19:59:28,378 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 19:59:28,381 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 19:59:28,381 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:59:25" (1/3) ... [2024-11-06 19:59:28,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681892b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:59:28, skipping insertion in model container [2024-11-06 19:59:28,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:59:26" (2/3) ... [2024-11-06 19:59:28,382 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@681892b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:59:28, skipping insertion in model container [2024-11-06 19:59:28,382 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:59:28" (3/3) ... [2024-11-06 19:59:28,383 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem15_label59.c [2024-11-06 19:59:28,393 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 19:59:28,393 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 19:59:28,435 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 19:59:28,441 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;@df369cb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 19:59:28,442 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 19:59:28,446 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 19:59:28,451 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 55 [2024-11-06 19:59:28,451 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:28,451 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:28,452 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:28,454 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:28,455 INFO L85 PathProgramCache]: Analyzing trace with hash 1425694346, now seen corresponding path program 1 times [2024-11-06 19:59:28,459 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:28,459 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [240801512] [2024-11-06 19:59:28,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:28,460 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:28,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:28,734 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 19:59:28,734 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:28,734 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [240801512] [2024-11-06 19:59:28,735 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [240801512] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:28,735 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:28,735 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:59:28,737 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1576719699] [2024-11-06 19:59:28,737 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:28,740 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:28,740 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:28,750 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:28,751 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:28,753 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 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states 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 19:59:30,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:30,389 INFO L93 Difference]: Finished difference Result 1197 states and 2163 transitions. [2024-11-06 19:59:30,390 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:30,391 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 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 54 [2024-11-06 19:59:30,391 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:30,399 INFO L225 Difference]: With dead ends: 1197 [2024-11-06 19:59:30,399 INFO L226 Difference]: Without dead ends: 694 [2024-11-06 19:59:30,406 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 19:59:30,408 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 364 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 1090 mSolverCounterSat, 304 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 364 SdHoareTripleChecker+Valid, 114 SdHoareTripleChecker+Invalid, 1394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 304 IncrementalHoareTripleChecker+Valid, 1090 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:30,408 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [364 Valid, 114 Invalid, 1394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [304 Valid, 1090 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-11-06 19:59:30,422 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 694 states. [2024-11-06 19:59:30,469 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 694 to 684. [2024-11-06 19:59:30,471 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 684 states, 683 states have (on average 1.718887262079063) internal successors, (1174), 683 states have internal predecessors, (1174), 0 states have call successors, (0), 0 states 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 19:59:30,475 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 684 states to 684 states and 1174 transitions. [2024-11-06 19:59:30,476 INFO L78 Accepts]: Start accepts. Automaton has 684 states and 1174 transitions. Word has length 54 [2024-11-06 19:59:30,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:30,476 INFO L471 AbstractCegarLoop]: Abstraction has 684 states and 1174 transitions. [2024-11-06 19:59:30,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 18.0) internal successors, (54), 2 states have internal predecessors, (54), 0 states have call successors, (0), 0 states 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 19:59:30,476 INFO L276 IsEmpty]: Start isEmpty. Operand 684 states and 1174 transitions. [2024-11-06 19:59:30,478 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 120 [2024-11-06 19:59:30,478 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:30,479 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:30,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 19:59:30,480 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:30,480 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:30,480 INFO L85 PathProgramCache]: Analyzing trace with hash 1246806213, now seen corresponding path program 1 times [2024-11-06 19:59:30,480 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:30,481 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [46705560] [2024-11-06 19:59:30,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:30,481 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:30,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:30,770 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:30,770 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:30,770 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [46705560] [2024-11-06 19:59:30,770 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [46705560] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:30,770 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:30,770 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:59:30,770 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [368099870] [2024-11-06 19:59:30,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:30,771 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:30,771 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:30,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:30,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:30,772 INFO L87 Difference]: Start difference. First operand 684 states and 1174 transitions. Second operand has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states 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 19:59:31,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:31,906 INFO L93 Difference]: Finished difference Result 1681 states and 2896 transitions. [2024-11-06 19:59:31,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:31,907 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 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 119 [2024-11-06 19:59:31,907 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:31,911 INFO L225 Difference]: With dead ends: 1681 [2024-11-06 19:59:31,911 INFO L226 Difference]: Without dead ends: 999 [2024-11-06 19:59:31,913 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 19:59:31,914 INFO L432 NwaCegarLoop]: 188 mSDtfsCounter, 254 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 1022 mSolverCounterSat, 105 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 226 SdHoareTripleChecker+Invalid, 1127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 105 IncrementalHoareTripleChecker+Valid, 1022 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:31,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 226 Invalid, 1127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [105 Valid, 1022 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 19:59:31,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 999 states. [2024-11-06 19:59:31,932 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 999 to 989. [2024-11-06 19:59:31,933 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 989 states, 988 states have (on average 1.6194331983805668) internal successors, (1600), 988 states have internal predecessors, (1600), 0 states have call successors, (0), 0 states 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 19:59:31,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 989 states to 989 states and 1600 transitions. [2024-11-06 19:59:31,936 INFO L78 Accepts]: Start accepts. Automaton has 989 states and 1600 transitions. Word has length 119 [2024-11-06 19:59:31,937 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:31,937 INFO L471 AbstractCegarLoop]: Abstraction has 989 states and 1600 transitions. [2024-11-06 19:59:31,937 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 39.666666666666664) internal successors, (119), 2 states have internal predecessors, (119), 0 states have call successors, (0), 0 states 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 19:59:31,937 INFO L276 IsEmpty]: Start isEmpty. Operand 989 states and 1600 transitions. [2024-11-06 19:59:31,938 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 121 [2024-11-06 19:59:31,938 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:31,939 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:31,939 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 19:59:31,939 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:31,939 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:31,939 INFO L85 PathProgramCache]: Analyzing trace with hash -214871010, now seen corresponding path program 1 times [2024-11-06 19:59:31,939 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:31,940 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [441645801] [2024-11-06 19:59:31,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:31,940 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:31,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:32,044 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:32,044 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:32,044 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [441645801] [2024-11-06 19:59:32,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [441645801] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:32,045 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:32,045 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:59:32,045 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2008849695] [2024-11-06 19:59:32,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:32,045 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:32,045 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:32,046 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:32,046 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:32,046 INFO L87 Difference]: Start difference. First operand 989 states and 1600 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 19:59:34,828 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.54s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=false, quantifiers [] [2024-11-06 19:59:35,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:35,697 INFO L93 Difference]: Finished difference Result 2575 states and 4255 transitions. [2024-11-06 19:59:35,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:35,697 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 19:59:35,698 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:35,703 INFO L225 Difference]: With dead ends: 2575 [2024-11-06 19:59:35,703 INFO L226 Difference]: Without dead ends: 1588 [2024-11-06 19:59:35,705 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 19:59:35,706 INFO L432 NwaCegarLoop]: 270 mSDtfsCounter, 284 mSDsluCounter, 67 mSDsCounter, 0 mSdLazyCounter, 791 mSolverCounterSat, 298 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 3.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 284 SdHoareTripleChecker+Valid, 337 SdHoareTripleChecker+Invalid, 1089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 298 IncrementalHoareTripleChecker+Valid, 791 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 3.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:35,706 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [284 Valid, 337 Invalid, 1089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [298 Valid, 791 Invalid, 0 Unknown, 0 Unchecked, 3.6s Time] [2024-11-06 19:59:35,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1588 states. [2024-11-06 19:59:35,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1588 to 1584. [2024-11-06 19:59:35,724 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1584 states, 1583 states have (on average 1.3986102337334176) internal successors, (2214), 1583 states have internal predecessors, (2214), 0 states have call successors, (0), 0 states 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 19:59:35,728 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1584 states to 1584 states and 2214 transitions. [2024-11-06 19:59:35,728 INFO L78 Accepts]: Start accepts. Automaton has 1584 states and 2214 transitions. Word has length 120 [2024-11-06 19:59:35,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:35,728 INFO L471 AbstractCegarLoop]: Abstraction has 1584 states and 2214 transitions. [2024-11-06 19:59:35,729 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 19:59:35,729 INFO L276 IsEmpty]: Start isEmpty. Operand 1584 states and 2214 transitions. [2024-11-06 19:59:35,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2024-11-06 19:59:35,730 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:35,730 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:35,730 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-06 19:59:35,730 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:35,731 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:35,731 INFO L85 PathProgramCache]: Analyzing trace with hash 1115564308, now seen corresponding path program 1 times [2024-11-06 19:59:35,731 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:35,731 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [47920569] [2024-11-06 19:59:35,731 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:35,731 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:35,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:35,968 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:35,970 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:35,970 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [47920569] [2024-11-06 19:59:35,970 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [47920569] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:35,970 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:35,971 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 19:59:35,971 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987175280] [2024-11-06 19:59:35,971 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:35,971 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-06 19:59:35,971 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:35,971 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-06 19:59:35,972 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:59:35,972 INFO L87 Difference]: Start difference. First operand 1584 states and 2214 transitions. Second operand has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 19:59:37,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:37,444 INFO L93 Difference]: Finished difference Result 4082 states and 5880 transitions. [2024-11-06 19:59:37,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:59:37,445 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 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 124 [2024-11-06 19:59:37,445 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:37,452 INFO L225 Difference]: With dead ends: 4082 [2024-11-06 19:59:37,452 INFO L226 Difference]: Without dead ends: 2799 [2024-11-06 19:59:37,453 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:59:37,456 INFO L432 NwaCegarLoop]: 320 mSDtfsCounter, 345 mSDsluCounter, 98 mSDsCounter, 0 mSdLazyCounter, 1744 mSolverCounterSat, 415 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 345 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 2159 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 415 IncrementalHoareTripleChecker+Valid, 1744 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:37,457 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [345 Valid, 418 Invalid, 2159 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [415 Valid, 1744 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 19:59:37,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2799 states. [2024-11-06 19:59:37,482 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2799 to 2483. [2024-11-06 19:59:37,484 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2483 states, 2482 states have (on average 1.2961321514907334) internal successors, (3217), 2482 states have internal predecessors, (3217), 0 states have call successors, (0), 0 states 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 19:59:37,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2483 states to 2483 states and 3217 transitions. [2024-11-06 19:59:37,489 INFO L78 Accepts]: Start accepts. Automaton has 2483 states and 3217 transitions. Word has length 124 [2024-11-06 19:59:37,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:37,489 INFO L471 AbstractCegarLoop]: Abstraction has 2483 states and 3217 transitions. [2024-11-06 19:59:37,489 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 24.8) internal successors, (124), 4 states have internal predecessors, (124), 0 states have call successors, (0), 0 states 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 19:59:37,489 INFO L276 IsEmpty]: Start isEmpty. Operand 2483 states and 3217 transitions. [2024-11-06 19:59:37,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 146 [2024-11-06 19:59:37,490 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:37,490 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:37,490 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 19:59:37,491 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:37,491 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:37,491 INFO L85 PathProgramCache]: Analyzing trace with hash 1684612182, now seen corresponding path program 1 times [2024-11-06 19:59:37,491 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:37,491 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784540617] [2024-11-06 19:59:37,491 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:37,491 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:37,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:37,604 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:37,604 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:37,604 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784540617] [2024-11-06 19:59:37,604 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784540617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:37,604 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:37,605 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:37,605 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1911560279] [2024-11-06 19:59:37,605 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:37,605 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:37,605 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:37,605 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:37,606 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:37,606 INFO L87 Difference]: Start difference. First operand 2483 states and 3217 transitions. Second operand has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states 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 19:59:39,009 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:39,010 INFO L93 Difference]: Finished difference Result 7358 states and 9526 transitions. [2024-11-06 19:59:39,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:39,010 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 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 145 [2024-11-06 19:59:39,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:39,019 INFO L225 Difference]: With dead ends: 7358 [2024-11-06 19:59:39,019 INFO L226 Difference]: Without dead ends: 3681 [2024-11-06 19:59:39,022 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 19:59:39,023 INFO L432 NwaCegarLoop]: 569 mSDtfsCounter, 290 mSDsluCounter, 43 mSDsCounter, 0 mSdLazyCounter, 812 mSolverCounterSat, 299 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 612 SdHoareTripleChecker+Invalid, 1111 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 299 IncrementalHoareTripleChecker+Valid, 812 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:39,023 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 612 Invalid, 1111 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [299 Valid, 812 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 19:59:39,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3681 states. [2024-11-06 19:59:39,062 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3681 to 3681. [2024-11-06 19:59:39,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3681 states, 3680 states have (on average 1.1695652173913043) internal successors, (4304), 3680 states have internal predecessors, (4304), 0 states have call successors, (0), 0 states 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 19:59:39,070 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3681 states to 3681 states and 4304 transitions. [2024-11-06 19:59:39,070 INFO L78 Accepts]: Start accepts. Automaton has 3681 states and 4304 transitions. Word has length 145 [2024-11-06 19:59:39,070 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:39,070 INFO L471 AbstractCegarLoop]: Abstraction has 3681 states and 4304 transitions. [2024-11-06 19:59:39,070 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 48.333333333333336) internal successors, (145), 3 states have internal predecessors, (145), 0 states have call successors, (0), 0 states 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 19:59:39,070 INFO L276 IsEmpty]: Start isEmpty. Operand 3681 states and 4304 transitions. [2024-11-06 19:59:39,072 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 288 [2024-11-06 19:59:39,072 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:39,073 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:39,073 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-06 19:59:39,073 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:39,073 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:39,073 INFO L85 PathProgramCache]: Analyzing trace with hash -1210416382, now seen corresponding path program 1 times [2024-11-06 19:59:39,073 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:39,073 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [297893693] [2024-11-06 19:59:39,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:39,074 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:39,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:39,374 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:39,374 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:39,374 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [297893693] [2024-11-06 19:59:39,375 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [297893693] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:39,375 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:39,375 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:39,375 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385852188] [2024-11-06 19:59:39,375 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:39,375 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:59:39,376 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:39,376 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:59:39,376 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:59:39,376 INFO L87 Difference]: Start difference. First operand 3681 states and 4304 transitions. Second operand has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states 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 19:59:40,937 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:40,937 INFO L93 Difference]: Finished difference Result 11273 states and 13177 transitions. [2024-11-06 19:59:40,938 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:59:40,938 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 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 287 [2024-11-06 19:59:40,938 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:40,952 INFO L225 Difference]: With dead ends: 11273 [2024-11-06 19:59:40,952 INFO L226 Difference]: Without dead ends: 7295 [2024-11-06 19:59:40,955 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:59:40,956 INFO L432 NwaCegarLoop]: 64 mSDtfsCounter, 455 mSDsluCounter, 60 mSDsCounter, 0 mSdLazyCounter, 1717 mSolverCounterSat, 290 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 455 SdHoareTripleChecker+Valid, 124 SdHoareTripleChecker+Invalid, 2007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 290 IncrementalHoareTripleChecker+Valid, 1717 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:40,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [455 Valid, 124 Invalid, 2007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [290 Valid, 1717 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-06 19:59:40,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7295 states. [2024-11-06 19:59:41,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7295 to 6081. [2024-11-06 19:59:41,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6081 states, 6080 states have (on average 1.1837171052631579) internal successors, (7197), 6080 states have internal predecessors, (7197), 0 states have call successors, (0), 0 states 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 19:59:41,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6081 states to 6081 states and 7197 transitions. [2024-11-06 19:59:41,028 INFO L78 Accepts]: Start accepts. Automaton has 6081 states and 7197 transitions. Word has length 287 [2024-11-06 19:59:41,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:41,029 INFO L471 AbstractCegarLoop]: Abstraction has 6081 states and 7197 transitions. [2024-11-06 19:59:41,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 71.75) internal successors, (287), 3 states have internal predecessors, (287), 0 states have call successors, (0), 0 states 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 19:59:41,029 INFO L276 IsEmpty]: Start isEmpty. Operand 6081 states and 7197 transitions. [2024-11-06 19:59:41,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 325 [2024-11-06 19:59:41,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:41,033 INFO L215 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:41,033 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 19:59:41,033 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:41,033 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:41,033 INFO L85 PathProgramCache]: Analyzing trace with hash 1076396748, now seen corresponding path program 1 times [2024-11-06 19:59:41,033 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:41,033 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1682984539] [2024-11-06 19:59:41,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:41,034 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:41,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:41,594 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 0 proven. 51 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:41,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:41,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1682984539] [2024-11-06 19:59:41,594 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1682984539] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:59:41,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1814457903] [2024-11-06 19:59:41,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:41,594 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:59:41,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:59:41,596 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 19:59:41,598 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 19:59:41,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:41,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 394 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:59:41,716 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:59:41,808 INFO L134 CoverageAnalysis]: Checked inductivity of 51 backedges. 51 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:41,809 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:59:41,809 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1814457903] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:41,809 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:59:41,809 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-06 19:59:41,810 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1443966934] [2024-11-06 19:59:41,810 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:41,810 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:41,810 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:41,811 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:41,812 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:59:41,812 INFO L87 Difference]: Start difference. First operand 6081 states and 7197 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 19:59:42,703 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:42,704 INFO L93 Difference]: Finished difference Result 12161 states and 14395 transitions. [2024-11-06 19:59:42,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:42,704 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 324 [2024-11-06 19:59:42,704 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:42,715 INFO L225 Difference]: With dead ends: 12161 [2024-11-06 19:59:42,715 INFO L226 Difference]: Without dead ends: 6082 [2024-11-06 19:59:42,719 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 327 GetRequests, 323 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:59:42,720 INFO L432 NwaCegarLoop]: 406 mSDtfsCounter, 331 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 817 mSolverCounterSat, 148 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 331 SdHoareTripleChecker+Valid, 418 SdHoareTripleChecker+Invalid, 965 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 148 IncrementalHoareTripleChecker+Valid, 817 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:42,720 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [331 Valid, 418 Invalid, 965 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [148 Valid, 817 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-11-06 19:59:42,724 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6082 states. [2024-11-06 19:59:42,769 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6082 to 6079. [2024-11-06 19:59:42,775 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6079 states, 6078 states have (on average 1.1615663047054952) internal successors, (7060), 6078 states have internal predecessors, (7060), 0 states have call successors, (0), 0 states 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 19:59:42,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6079 states to 6079 states and 7060 transitions. [2024-11-06 19:59:42,782 INFO L78 Accepts]: Start accepts. Automaton has 6079 states and 7060 transitions. Word has length 324 [2024-11-06 19:59:42,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:42,784 INFO L471 AbstractCegarLoop]: Abstraction has 6079 states and 7060 transitions. [2024-11-06 19:59:42,784 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 19:59:42,784 INFO L276 IsEmpty]: Start isEmpty. Operand 6079 states and 7060 transitions. [2024-11-06 19:59:42,787 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 338 [2024-11-06 19:59:42,787 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:42,788 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:42,803 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-06 19:59:42,988 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:59:42,988 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:42,988 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:42,989 INFO L85 PathProgramCache]: Analyzing trace with hash -1202719056, now seen corresponding path program 1 times [2024-11-06 19:59:42,989 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:42,989 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1663832013] [2024-11-06 19:59:42,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:42,989 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:43,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:43,362 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-06 19:59:43,364 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:43,364 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1663832013] [2024-11-06 19:59:43,364 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1663832013] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:43,364 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:43,364 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:59:43,364 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1125049672] [2024-11-06 19:59:43,365 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:43,365 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:43,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:43,365 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:43,365 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:43,366 INFO L87 Difference]: Start difference. First operand 6079 states and 7060 transitions. Second operand has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 2 states have internal predecessors, (286), 0 states have call successors, (0), 0 states 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 19:59:44,148 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:44,148 INFO L93 Difference]: Finished difference Result 12455 states and 14421 transitions. [2024-11-06 19:59:44,149 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:44,149 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 2 states have internal predecessors, (286), 0 states have call successors, (0), 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 337 [2024-11-06 19:59:44,149 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:44,165 INFO L225 Difference]: With dead ends: 12455 [2024-11-06 19:59:44,165 INFO L226 Difference]: Without dead ends: 6378 [2024-11-06 19:59:44,168 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 19:59:44,168 INFO L432 NwaCegarLoop]: 268 mSDtfsCounter, 105 mSDsluCounter, 35 mSDsCounter, 0 mSdLazyCounter, 824 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 105 SdHoareTripleChecker+Valid, 303 SdHoareTripleChecker+Invalid, 825 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 824 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:44,168 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [105 Valid, 303 Invalid, 825 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 824 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 19:59:44,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6378 states. [2024-11-06 19:59:44,206 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6378 to 6378. [2024-11-06 19:59:44,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 6378 states, 6377 states have (on average 1.1543045319115572) internal successors, (7361), 6377 states have internal predecessors, (7361), 0 states have call successors, (0), 0 states 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 19:59:44,222 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6378 states to 6378 states and 7361 transitions. [2024-11-06 19:59:44,223 INFO L78 Accepts]: Start accepts. Automaton has 6378 states and 7361 transitions. Word has length 337 [2024-11-06 19:59:44,223 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:44,223 INFO L471 AbstractCegarLoop]: Abstraction has 6378 states and 7361 transitions. [2024-11-06 19:59:44,223 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 95.33333333333333) internal successors, (286), 2 states have internal predecessors, (286), 0 states have call successors, (0), 0 states 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 19:59:44,223 INFO L276 IsEmpty]: Start isEmpty. Operand 6378 states and 7361 transitions. [2024-11-06 19:59:44,227 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 412 [2024-11-06 19:59:44,227 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:44,228 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:44,228 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 19:59:44,228 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:44,228 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:44,228 INFO L85 PathProgramCache]: Analyzing trace with hash 1561735070, now seen corresponding path program 1 times [2024-11-06 19:59:44,228 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:44,228 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274008889] [2024-11-06 19:59:44,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:44,228 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:44,880 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 103 proven. 86 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:44,880 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:44,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274008889] [2024-11-06 19:59:44,881 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274008889] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:59:44,881 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1648893425] [2024-11-06 19:59:44,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:44,881 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:59:44,881 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:59:44,883 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 19:59:44,884 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 19:59:45,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:45,008 INFO L255 TraceCheckSpWp]: Trace formula consists of 503 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:59:45,012 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:59:45,121 INFO L134 CoverageAnalysis]: Checked inductivity of 189 backedges. 189 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:45,121 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:59:45,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1648893425] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:45,122 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:59:45,122 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 7 [2024-11-06 19:59:45,124 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013125691] [2024-11-06 19:59:45,124 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:45,124 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:45,124 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:45,125 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:45,125 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:59:45,125 INFO L87 Difference]: Start difference. First operand 6378 states and 7361 transitions. Second operand has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:45,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:45,978 INFO L93 Difference]: Finished difference Result 15450 states and 18175 transitions. [2024-11-06 19:59:45,978 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:45,979 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 411 [2024-11-06 19:59:45,979 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:45,993 INFO L225 Difference]: With dead ends: 15450 [2024-11-06 19:59:45,993 INFO L226 Difference]: Without dead ends: 9373 [2024-11-06 19:59:45,999 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 415 GetRequests, 410 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:59:46,000 INFO L432 NwaCegarLoop]: 237 mSDtfsCounter, 245 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 806 mSolverCounterSat, 201 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 245 SdHoareTripleChecker+Valid, 269 SdHoareTripleChecker+Invalid, 1007 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 201 IncrementalHoareTripleChecker+Valid, 806 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:46,000 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [245 Valid, 269 Invalid, 1007 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [201 Valid, 806 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 19:59:46,006 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9373 states. [2024-11-06 19:59:46,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9373 to 9367. [2024-11-06 19:59:46,059 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9367 states, 9366 states have (on average 1.1273756139226991) internal successors, (10559), 9366 states have internal predecessors, (10559), 0 states have call successors, (0), 0 states 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 19:59:46,067 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9367 states to 9367 states and 10559 transitions. [2024-11-06 19:59:46,067 INFO L78 Accepts]: Start accepts. Automaton has 9367 states and 10559 transitions. Word has length 411 [2024-11-06 19:59:46,067 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:46,067 INFO L471 AbstractCegarLoop]: Abstraction has 9367 states and 10559 transitions. [2024-11-06 19:59:46,068 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 137.0) internal successors, (411), 3 states have internal predecessors, (411), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:46,068 INFO L276 IsEmpty]: Start isEmpty. Operand 9367 states and 10559 transitions. [2024-11-06 19:59:46,070 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-06 19:59:46,070 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:46,070 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:46,083 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 19:59:46,274 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:59:46,274 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:46,275 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:46,275 INFO L85 PathProgramCache]: Analyzing trace with hash -1389467139, now seen corresponding path program 1 times [2024-11-06 19:59:46,275 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:46,275 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469046080] [2024-11-06 19:59:46,275 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:46,275 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:46,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:46,641 INFO L134 CoverageAnalysis]: Checked inductivity of 245 backedges. 103 proven. 0 refuted. 0 times theorem prover too weak. 142 trivial. 0 not checked. [2024-11-06 19:59:46,641 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:46,641 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469046080] [2024-11-06 19:59:46,641 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469046080] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:46,641 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:46,641 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:46,642 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [974840877] [2024-11-06 19:59:46,642 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:46,642 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:59:46,642 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:46,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:59:46,643 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:59:46,643 INFO L87 Difference]: Start difference. First operand 9367 states and 10559 transitions. Second operand has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states 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 19:59:48,152 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:48,152 INFO L93 Difference]: Finished difference Result 22043 states and 24950 transitions. [2024-11-06 19:59:48,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:59:48,153 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 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 467 [2024-11-06 19:59:48,153 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:48,169 INFO L225 Difference]: With dead ends: 22043 [2024-11-06 19:59:48,169 INFO L226 Difference]: Without dead ends: 12678 [2024-11-06 19:59:48,176 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:59:48,177 INFO L432 NwaCegarLoop]: 66 mSDtfsCounter, 433 mSDsluCounter, 57 mSDsCounter, 0 mSdLazyCounter, 1663 mSolverCounterSat, 484 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 433 SdHoareTripleChecker+Valid, 123 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 484 IncrementalHoareTripleChecker+Valid, 1663 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:48,177 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [433 Valid, 123 Invalid, 2147 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [484 Valid, 1663 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-06 19:59:48,183 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12678 states. [2024-11-06 19:59:48,245 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12678 to 9369. [2024-11-06 19:59:48,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 9369 states, 9368 states have (on average 1.1258539709649873) internal successors, (10547), 9368 states have internal predecessors, (10547), 0 states have call successors, (0), 0 states 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 19:59:48,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9369 states to 9369 states and 10547 transitions. [2024-11-06 19:59:48,259 INFO L78 Accepts]: Start accepts. Automaton has 9369 states and 10547 transitions. Word has length 467 [2024-11-06 19:59:48,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:48,260 INFO L471 AbstractCegarLoop]: Abstraction has 9369 states and 10547 transitions. [2024-11-06 19:59:48,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 81.5) internal successors, (326), 3 states have internal predecessors, (326), 0 states have call successors, (0), 0 states 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 19:59:48,260 INFO L276 IsEmpty]: Start isEmpty. Operand 9369 states and 10547 transitions. [2024-11-06 19:59:48,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 542 [2024-11-06 19:59:48,264 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:48,264 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, 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, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:59:48,264 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-06 19:59:48,264 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:48,265 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:48,265 INFO L85 PathProgramCache]: Analyzing trace with hash 1124054340, now seen corresponding path program 1 times [2024-11-06 19:59:48,265 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:48,265 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408653553] [2024-11-06 19:59:48,265 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:48,265 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:48,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:49,141 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 262 proven. 215 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:49,141 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:49,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408653553] [2024-11-06 19:59:49,142 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1408653553] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:59:49,142 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349186488] [2024-11-06 19:59:49,142 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:49,142 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:59:49,142 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:59:49,144 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 19:59:49,146 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 19:59:49,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:49,293 INFO L255 TraceCheckSpWp]: Trace formula consists of 653 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:59:49,296 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:59:49,357 INFO L134 CoverageAnalysis]: Checked inductivity of 477 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 322 trivial. 0 not checked. [2024-11-06 19:59:49,357 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:59:49,357 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1349186488] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:49,357 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:59:49,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-06 19:59:49,358 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97769327] [2024-11-06 19:59:49,358 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:49,358 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:49,358 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:49,359 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:49,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:59:49,359 INFO L87 Difference]: Start difference. First operand 9369 states and 10547 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:50,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:50,911 INFO L93 Difference]: Finished difference Result 22024 states and 24970 transitions. [2024-11-06 19:59:50,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:50,911 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 541 [2024-11-06 19:59:50,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:50,928 INFO L225 Difference]: With dead ends: 22024 [2024-11-06 19:59:50,928 INFO L226 Difference]: Without dead ends: 12956 [2024-11-06 19:59:50,935 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 547 GetRequests, 542 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:59:50,936 INFO L432 NwaCegarLoop]: 425 mSDtfsCounter, 362 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 859 mSolverCounterSat, 126 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 362 SdHoareTripleChecker+Valid, 445 SdHoareTripleChecker+Invalid, 985 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 126 IncrementalHoareTripleChecker+Valid, 859 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:50,936 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [362 Valid, 445 Invalid, 985 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [126 Valid, 859 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-06 19:59:50,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12956 states. [2024-11-06 19:59:51,008 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12956 to 10863. [2024-11-06 19:59:51,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10863 states, 10862 states have (on average 1.134045295525686) internal successors, (12318), 10862 states have internal predecessors, (12318), 0 states have call successors, (0), 0 states 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 19:59:51,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10863 states to 10863 states and 12318 transitions. [2024-11-06 19:59:51,025 INFO L78 Accepts]: Start accepts. Automaton has 10863 states and 12318 transitions. Word has length 541 [2024-11-06 19:59:51,026 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:51,026 INFO L471 AbstractCegarLoop]: Abstraction has 10863 states and 12318 transitions. [2024-11-06 19:59:51,026 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:51,027 INFO L276 IsEmpty]: Start isEmpty. Operand 10863 states and 12318 transitions. [2024-11-06 19:59:51,032 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 588 [2024-11-06 19:59:51,032 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:51,032 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, 5, 5, 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, 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] [2024-11-06 19:59:51,045 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 19:59:51,232 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:59:51,233 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:51,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:51,233 INFO L85 PathProgramCache]: Analyzing trace with hash 112753897, now seen corresponding path program 1 times [2024-11-06 19:59:51,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:51,233 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [661356185] [2024-11-06 19:59:51,233 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:51,233 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:51,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:51,918 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 462 proven. 172 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2024-11-06 19:59:51,919 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:51,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [661356185] [2024-11-06 19:59:51,919 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [661356185] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:59:51,919 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1939450094] [2024-11-06 19:59:51,919 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:51,919 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:59:51,919 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:59:51,921 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:59:51,922 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-06 19:59:52,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:52,073 INFO L255 TraceCheckSpWp]: Trace formula consists of 726 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:59:52,077 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:59:52,157 INFO L134 CoverageAnalysis]: Checked inductivity of 686 backedges. 528 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-06 19:59:52,157 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:59:52,157 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1939450094] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:52,157 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:59:52,158 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-06 19:59:52,158 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [258326645] [2024-11-06 19:59:52,158 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:52,158 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:52,158 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:52,159 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:52,159 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:59:52,159 INFO L87 Difference]: Start difference. First operand 10863 states and 12318 transitions. Second operand has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states 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 19:59:52,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:52,894 INFO L93 Difference]: Finished difference Result 21430 states and 24339 transitions. [2024-11-06 19:59:52,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:52,895 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 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 587 [2024-11-06 19:59:52,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:52,904 INFO L225 Difference]: With dead ends: 21430 [2024-11-06 19:59:52,904 INFO L226 Difference]: Without dead ends: 10868 [2024-11-06 19:59:52,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 592 GetRequests, 587 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:59:52,912 INFO L432 NwaCegarLoop]: 453 mSDtfsCounter, 301 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 820 mSolverCounterSat, 120 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 477 SdHoareTripleChecker+Invalid, 940 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 120 IncrementalHoareTripleChecker+Valid, 820 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:52,912 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 477 Invalid, 940 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [120 Valid, 820 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 19:59:52,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10868 states. [2024-11-06 19:59:52,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10868 to 10562. [2024-11-06 19:59:52,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 10562 states, 10561 states have (on average 1.1160874917147998) internal successors, (11787), 10561 states have internal predecessors, (11787), 0 states have call successors, (0), 0 states 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 19:59:52,993 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 10562 states to 10562 states and 11787 transitions. [2024-11-06 19:59:52,994 INFO L78 Accepts]: Start accepts. Automaton has 10562 states and 11787 transitions. Word has length 587 [2024-11-06 19:59:52,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:52,994 INFO L471 AbstractCegarLoop]: Abstraction has 10562 states and 11787 transitions. [2024-11-06 19:59:52,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.66666666666666) internal successors, (431), 3 states have internal predecessors, (431), 0 states have call successors, (0), 0 states 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 19:59:52,994 INFO L276 IsEmpty]: Start isEmpty. Operand 10562 states and 11787 transitions. [2024-11-06 19:59:52,999 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 592 [2024-11-06 19:59:52,999 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:53,001 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 19:59:53,014 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-06 19:59:53,201 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-06 19:59:53,201 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:53,202 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:53,202 INFO L85 PathProgramCache]: Analyzing trace with hash -162764234, now seen corresponding path program 1 times [2024-11-06 19:59:53,202 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:53,202 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [400711958] [2024-11-06 19:59:53,202 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:53,202 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:53,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:53,611 INFO L134 CoverageAnalysis]: Checked inductivity of 527 backedges. 421 proven. 0 refuted. 0 times theorem prover too weak. 106 trivial. 0 not checked. [2024-11-06 19:59:53,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:53,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [400711958] [2024-11-06 19:59:53,612 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [400711958] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:53,612 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:53,612 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:53,612 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1262580065] [2024-11-06 19:59:53,613 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:53,614 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:53,614 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:53,614 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:53,614 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:53,615 INFO L87 Difference]: Start difference. First operand 10562 states and 11787 transitions. Second operand has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:54,871 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:54,871 INFO L93 Difference]: Finished difference Result 23216 states and 26123 transitions. [2024-11-06 19:59:54,872 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:54,872 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 591 [2024-11-06 19:59:54,872 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:54,882 INFO L225 Difference]: With dead ends: 23216 [2024-11-06 19:59:54,882 INFO L226 Difference]: Without dead ends: 12955 [2024-11-06 19:59:54,888 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 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 19:59:54,888 INFO L432 NwaCegarLoop]: 128 mSDtfsCounter, 215 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 255 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 215 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 1027 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 255 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:54,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [215 Valid, 143 Invalid, 1027 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [255 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 19:59:54,893 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12955 states. [2024-11-06 19:59:54,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12955 to 12057. [2024-11-06 19:59:54,963 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12057 states, 12056 states have (on average 1.1127239548772396) internal successors, (13415), 12056 states have internal predecessors, (13415), 0 states have call successors, (0), 0 states 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 19:59:54,972 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12057 states to 12057 states and 13415 transitions. [2024-11-06 19:59:54,973 INFO L78 Accepts]: Start accepts. Automaton has 12057 states and 13415 transitions. Word has length 591 [2024-11-06 19:59:54,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:54,973 INFO L471 AbstractCegarLoop]: Abstraction has 12057 states and 13415 transitions. [2024-11-06 19:59:54,973 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.0) internal successors, (486), 3 states have internal predecessors, (486), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:54,973 INFO L276 IsEmpty]: Start isEmpty. Operand 12057 states and 13415 transitions. [2024-11-06 19:59:54,978 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 644 [2024-11-06 19:59:54,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:54,979 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, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 19:59:54,979 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-11-06 19:59:54,979 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:54,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:54,979 INFO L85 PathProgramCache]: Analyzing trace with hash 1663494512, now seen corresponding path program 1 times [2024-11-06 19:59:54,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:54,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1464983348] [2024-11-06 19:59:54,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:54,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:55,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:55,201 INFO L134 CoverageAnalysis]: Checked inductivity of 768 backedges. 610 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-06 19:59:55,202 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:55,202 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1464983348] [2024-11-06 19:59:55,202 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1464983348] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:55,202 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:55,202 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:55,202 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1379581245] [2024-11-06 19:59:55,202 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:55,203 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:55,203 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:55,203 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:55,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:55,203 INFO L87 Difference]: Start difference. First operand 12057 states and 13415 transitions. Second operand has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:55,917 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:55,917 INFO L93 Difference]: Finished difference Result 26509 states and 29555 transitions. [2024-11-06 19:59:55,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:55,918 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 643 [2024-11-06 19:59:55,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:55,927 INFO L225 Difference]: With dead ends: 26509 [2024-11-06 19:59:55,928 INFO L226 Difference]: Without dead ends: 14753 [2024-11-06 19:59:55,934 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 19:59:55,934 INFO L432 NwaCegarLoop]: 539 mSDtfsCounter, 254 mSDsluCounter, 37 mSDsCounter, 0 mSdLazyCounter, 829 mSolverCounterSat, 80 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 254 SdHoareTripleChecker+Valid, 576 SdHoareTripleChecker+Invalid, 909 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 80 IncrementalHoareTripleChecker+Valid, 829 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:55,934 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [254 Valid, 576 Invalid, 909 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [80 Valid, 829 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 19:59:55,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14753 states. [2024-11-06 19:59:56,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14753 to 13851. [2024-11-06 19:59:56,016 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13851 states, 13850 states have (on average 1.107870036101083) internal successors, (15344), 13850 states have internal predecessors, (15344), 0 states have call successors, (0), 0 states 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 19:59:56,027 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13851 states to 13851 states and 15344 transitions. [2024-11-06 19:59:56,028 INFO L78 Accepts]: Start accepts. Automaton has 13851 states and 15344 transitions. Word has length 643 [2024-11-06 19:59:56,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:56,028 INFO L471 AbstractCegarLoop]: Abstraction has 13851 states and 15344 transitions. [2024-11-06 19:59:56,028 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 162.33333333333334) internal successors, (487), 3 states have internal predecessors, (487), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:56,028 INFO L276 IsEmpty]: Start isEmpty. Operand 13851 states and 15344 transitions. [2024-11-06 19:59:56,034 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 669 [2024-11-06 19:59:56,034 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:56,034 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, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:56,034 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-11-06 19:59:56,034 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:56,034 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:56,035 INFO L85 PathProgramCache]: Analyzing trace with hash -1759415692, now seen corresponding path program 1 times [2024-11-06 19:59:56,035 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:56,035 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1191494467] [2024-11-06 19:59:56,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:56,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:56,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:56,289 INFO L134 CoverageAnalysis]: Checked inductivity of 829 backedges. 467 proven. 0 refuted. 0 times theorem prover too weak. 362 trivial. 0 not checked. [2024-11-06 19:59:56,290 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:56,290 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1191494467] [2024-11-06 19:59:56,290 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1191494467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:56,290 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:56,291 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:56,291 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1517973712] [2024-11-06 19:59:56,291 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:56,291 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:56,291 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:56,292 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:56,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:56,292 INFO L87 Difference]: Start difference. First operand 13851 states and 15344 transitions. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:57,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:57,125 INFO L93 Difference]: Finished difference Result 27401 states and 30385 transitions. [2024-11-06 19:59:57,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:57,126 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 668 [2024-11-06 19:59:57,126 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:57,136 INFO L225 Difference]: With dead ends: 27401 [2024-11-06 19:59:57,136 INFO L226 Difference]: Without dead ends: 13851 [2024-11-06 19:59:57,143 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 19:59:57,143 INFO L432 NwaCegarLoop]: 556 mSDtfsCounter, 224 mSDsluCounter, 36 mSDsCounter, 0 mSdLazyCounter, 830 mSolverCounterSat, 73 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 224 SdHoareTripleChecker+Valid, 592 SdHoareTripleChecker+Invalid, 903 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 73 IncrementalHoareTripleChecker+Valid, 830 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:57,143 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [224 Valid, 592 Invalid, 903 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [73 Valid, 830 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 19:59:57,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 13851 states. [2024-11-06 19:59:57,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 13851 to 13851. [2024-11-06 19:59:57,264 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13851 states, 13850 states have (on average 1.0927797833935018) internal successors, (15135), 13850 states have internal predecessors, (15135), 0 states have call successors, (0), 0 states 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 19:59:57,273 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13851 states to 13851 states and 15135 transitions. [2024-11-06 19:59:57,273 INFO L78 Accepts]: Start accepts. Automaton has 13851 states and 15135 transitions. Word has length 668 [2024-11-06 19:59:57,274 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:57,274 INFO L471 AbstractCegarLoop]: Abstraction has 13851 states and 15135 transitions. [2024-11-06 19:59:57,274 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:57,274 INFO L276 IsEmpty]: Start isEmpty. Operand 13851 states and 15135 transitions. [2024-11-06 19:59:57,279 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 671 [2024-11-06 19:59:57,279 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:57,279 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, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:57,279 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-11-06 19:59:57,279 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:57,279 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:57,279 INFO L85 PathProgramCache]: Analyzing trace with hash 434787481, now seen corresponding path program 1 times [2024-11-06 19:59:57,279 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:57,279 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [477889202] [2024-11-06 19:59:57,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:57,280 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:57,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:57,546 INFO L134 CoverageAnalysis]: Checked inductivity of 831 backedges. 467 proven. 0 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2024-11-06 19:59:57,546 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:57,547 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [477889202] [2024-11-06 19:59:57,547 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [477889202] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:57,547 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:59:57,547 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:59:57,547 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1979079725] [2024-11-06 19:59:57,547 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:57,547 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:57,547 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:57,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:57,548 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:59:57,548 INFO L87 Difference]: Start difference. First operand 13851 states and 15135 transitions. Second operand has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:58,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:59:58,600 INFO L93 Difference]: Finished difference Result 32808 states and 35792 transitions. [2024-11-06 19:59:58,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:59:58,600 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 670 [2024-11-06 19:59:58,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:59:58,614 INFO L225 Difference]: With dead ends: 32808 [2024-11-06 19:59:58,614 INFO L226 Difference]: Without dead ends: 19258 [2024-11-06 19:59:58,622 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 19:59:58,622 INFO L432 NwaCegarLoop]: 560 mSDtfsCounter, 238 mSDsluCounter, 38 mSDsCounter, 0 mSdLazyCounter, 932 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 238 SdHoareTripleChecker+Valid, 598 SdHoareTripleChecker+Invalid, 1067 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 932 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-06 19:59:58,622 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [238 Valid, 598 Invalid, 1067 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 932 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-06 19:59:58,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19258 states. [2024-11-06 19:59:58,733 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19258 to 18947. [2024-11-06 19:59:58,743 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18947 states, 18946 states have (on average 1.0803863612372004) internal successors, (20469), 18946 states have internal predecessors, (20469), 0 states have call successors, (0), 0 states 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 19:59:58,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18947 states to 18947 states and 20469 transitions. [2024-11-06 19:59:58,757 INFO L78 Accepts]: Start accepts. Automaton has 18947 states and 20469 transitions. Word has length 670 [2024-11-06 19:59:58,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:59:58,758 INFO L471 AbstractCegarLoop]: Abstraction has 18947 states and 20469 transitions. [2024-11-06 19:59:58,758 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 138.0) internal successors, (414), 3 states have internal predecessors, (414), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:59:58,758 INFO L276 IsEmpty]: Start isEmpty. Operand 18947 states and 20469 transitions. [2024-11-06 19:59:58,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 699 [2024-11-06 19:59:58,764 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:59:58,764 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 19:59:58,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-11-06 19:59:58,764 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:59:58,764 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:59:58,765 INFO L85 PathProgramCache]: Analyzing trace with hash -1256968810, now seen corresponding path program 1 times [2024-11-06 19:59:58,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:59:58,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [782043223] [2024-11-06 19:59:58,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:58,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:59:58,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:59,556 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 262 proven. 372 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:59:59,556 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:59:59,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [782043223] [2024-11-06 19:59:59,556 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [782043223] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:59:59,556 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165406909] [2024-11-06 19:59:59,556 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:59:59,556 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:59:59,556 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:59:59,558 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 19:59:59,559 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-06 19:59:59,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:59:59,719 INFO L255 TraceCheckSpWp]: Trace formula consists of 814 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 19:59:59,724 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:59:59,843 INFO L134 CoverageAnalysis]: Checked inductivity of 634 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 479 trivial. 0 not checked. [2024-11-06 19:59:59,843 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:59:59,844 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165406909] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:59:59,844 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:59:59,844 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 8 [2024-11-06 19:59:59,844 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [509487155] [2024-11-06 19:59:59,844 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:59:59,844 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:59:59,844 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:59:59,845 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:59:59,845 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-06 19:59:59,845 INFO L87 Difference]: Start difference. First operand 18947 states and 20469 transitions. Second operand has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:00:01,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:01,085 INFO L93 Difference]: Finished difference Result 45403 states and 49072 transitions. [2024-11-06 20:00:01,085 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:00:01,085 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 698 [2024-11-06 20:00:01,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:01,106 INFO L225 Difference]: With dead ends: 45403 [2024-11-06 20:00:01,106 INFO L226 Difference]: Without dead ends: 24066 [2024-11-06 20:00:01,120 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 703 GetRequests, 697 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=40, Unknown=0, NotChecked=0, Total=56 [2024-11-06 20:00:01,121 INFO L432 NwaCegarLoop]: 414 mSDtfsCounter, 346 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 850 mSolverCounterSat, 225 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 346 SdHoareTripleChecker+Valid, 439 SdHoareTripleChecker+Invalid, 1075 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 225 IncrementalHoareTripleChecker+Valid, 850 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:01,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [346 Valid, 439 Invalid, 1075 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [225 Valid, 850 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 20:00:01,132 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24066 states. [2024-11-06 20:00:01,263 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24066 to 20468. [2024-11-06 20:00:01,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20468 states, 20467 states have (on average 1.0687448087164704) internal successors, (21874), 20467 states have internal predecessors, (21874), 0 states have call successors, (0), 0 states 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 20:00:01,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20468 states to 20468 states and 21874 transitions. [2024-11-06 20:00:01,293 INFO L78 Accepts]: Start accepts. Automaton has 20468 states and 21874 transitions. Word has length 698 [2024-11-06 20:00:01,293 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:01,293 INFO L471 AbstractCegarLoop]: Abstraction has 20468 states and 21874 transitions. [2024-11-06 20:00:01,293 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 109.0) internal successors, (327), 3 states have internal predecessors, (327), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:00:01,294 INFO L276 IsEmpty]: Start isEmpty. Operand 20468 states and 21874 transitions. [2024-11-06 20:00:01,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 707 [2024-11-06 20:00:01,299 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:01,300 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, 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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:00:01,313 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-06 20:00:01,500 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2024-11-06 20:00:01,501 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:01,501 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:01,502 INFO L85 PathProgramCache]: Analyzing trace with hash -1969280993, now seen corresponding path program 1 times [2024-11-06 20:00:01,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:01,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [368179180] [2024-11-06 20:00:01,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:01,502 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:01,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:02,496 INFO L134 CoverageAnalysis]: Checked inductivity of 932 backedges. 588 proven. 0 refuted. 0 times theorem prover too weak. 344 trivial. 0 not checked. [2024-11-06 20:00:02,497 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:02,497 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [368179180] [2024-11-06 20:00:02,497 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [368179180] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:02,497 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:00:02,497 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 20:00:02,498 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1987882706] [2024-11-06 20:00:02,498 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:02,498 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:00:02,498 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:02,499 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:00:02,499 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:00:02,499 INFO L87 Difference]: Start difference. First operand 20468 states and 21874 transitions. Second operand has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states 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 20:00:03,830 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:03,831 INFO L93 Difference]: Finished difference Result 48435 states and 51642 transitions. [2024-11-06 20:00:03,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:00:03,831 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 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 706 [2024-11-06 20:00:03,832 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:03,857 INFO L225 Difference]: With dead ends: 48435 [2024-11-06 20:00:03,857 INFO L226 Difference]: Without dead ends: 27670 [2024-11-06 20:00:03,870 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 20:00:03,871 INFO L432 NwaCegarLoop]: 112 mSDtfsCounter, 536 mSDsluCounter, 52 mSDsCounter, 0 mSdLazyCounter, 1610 mSolverCounterSat, 269 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 536 SdHoareTripleChecker+Valid, 164 SdHoareTripleChecker+Invalid, 1879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 269 IncrementalHoareTripleChecker+Valid, 1610 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:03,871 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [536 Valid, 164 Invalid, 1879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [269 Valid, 1610 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 20:00:03,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27670 states. [2024-11-06 20:00:04,001 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27670 to 20468. [2024-11-06 20:00:04,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20468 states, 20467 states have (on average 1.0687448087164704) internal successors, (21874), 20467 states have internal predecessors, (21874), 0 states have call successors, (0), 0 states 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 20:00:04,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20468 states to 20468 states and 21874 transitions. [2024-11-06 20:00:04,029 INFO L78 Accepts]: Start accepts. Automaton has 20468 states and 21874 transitions. Word has length 706 [2024-11-06 20:00:04,029 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:04,029 INFO L471 AbstractCegarLoop]: Abstraction has 20468 states and 21874 transitions. [2024-11-06 20:00:04,029 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.5) internal successors, (470), 4 states have internal predecessors, (470), 0 states have call successors, (0), 0 states 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 20:00:04,029 INFO L276 IsEmpty]: Start isEmpty. Operand 20468 states and 21874 transitions. [2024-11-06 20:00:04,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 716 [2024-11-06 20:00:04,036 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:04,036 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, 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, 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] [2024-11-06 20:00:04,036 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-06 20:00:04,036 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:04,037 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:04,037 INFO L85 PathProgramCache]: Analyzing trace with hash -1608735074, now seen corresponding path program 1 times [2024-11-06 20:00:04,037 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:04,037 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [95544962] [2024-11-06 20:00:04,037 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:04,037 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:04,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:04,269 INFO L134 CoverageAnalysis]: Checked inductivity of 929 backedges. 543 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-11-06 20:00:04,270 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:04,270 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [95544962] [2024-11-06 20:00:04,270 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [95544962] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:04,270 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:00:04,270 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:00:04,270 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [795188327] [2024-11-06 20:00:04,270 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:04,271 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:00:04,271 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:04,271 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:00:04,271 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:00:04,271 INFO L87 Difference]: Start difference. First operand 20468 states and 21874 transitions. Second operand has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states 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 20:00:04,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:04,926 INFO L93 Difference]: Finished difference Result 40931 states and 43747 transitions. [2024-11-06 20:00:04,926 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:00:04,927 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 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 715 [2024-11-06 20:00:04,927 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:04,944 INFO L225 Difference]: With dead ends: 40931 [2024-11-06 20:00:04,944 INFO L226 Difference]: Without dead ends: 20764 [2024-11-06 20:00:04,955 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 20:00:04,956 INFO L432 NwaCegarLoop]: 65 mSDtfsCounter, 464 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 761 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 464 SdHoareTripleChecker+Valid, 70 SdHoareTripleChecker+Invalid, 831 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 761 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:04,956 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [464 Valid, 70 Invalid, 831 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 761 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:00:04,964 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20764 states. [2024-11-06 20:00:05,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20764 to 20465. [2024-11-06 20:00:05,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20465 states, 20464 states have (on average 1.0686082877247849) internal successors, (21868), 20464 states have internal predecessors, (21868), 0 states have call successors, (0), 0 states 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 20:00:05,096 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20465 states to 20465 states and 21868 transitions. [2024-11-06 20:00:05,096 INFO L78 Accepts]: Start accepts. Automaton has 20465 states and 21868 transitions. Word has length 715 [2024-11-06 20:00:05,096 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:05,097 INFO L471 AbstractCegarLoop]: Abstraction has 20465 states and 21868 transitions. [2024-11-06 20:00:05,097 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 146.0) internal successors, (438), 3 states have internal predecessors, (438), 0 states have call successors, (0), 0 states 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 20:00:05,097 INFO L276 IsEmpty]: Start isEmpty. Operand 20465 states and 21868 transitions. [2024-11-06 20:00:05,102 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 727 [2024-11-06 20:00:05,102 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:05,103 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:00:05,103 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-11-06 20:00:05,103 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:05,103 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:05,103 INFO L85 PathProgramCache]: Analyzing trace with hash -2023005704, now seen corresponding path program 1 times [2024-11-06 20:00:05,103 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:05,103 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [443632129] [2024-11-06 20:00:05,103 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:05,103 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:05,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:05,431 INFO L134 CoverageAnalysis]: Checked inductivity of 963 backedges. 805 proven. 0 refuted. 0 times theorem prover too weak. 158 trivial. 0 not checked. [2024-11-06 20:00:05,431 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:05,431 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [443632129] [2024-11-06 20:00:05,431 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [443632129] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:05,431 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:00:05,431 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:00:05,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267258752] [2024-11-06 20:00:05,431 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:05,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:00:05,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:05,432 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:00:05,432 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:00:05,432 INFO L87 Difference]: Start difference. First operand 20465 states and 21868 transitions. Second operand has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 0 states have call successors, (0), 0 states 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 20:00:06,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:06,239 INFO L93 Difference]: Finished difference Result 45411 states and 48677 transitions. [2024-11-06 20:00:06,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:00:06,240 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 0 states have call successors, (0), 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 726 [2024-11-06 20:00:06,240 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:06,266 INFO L225 Difference]: With dead ends: 45411 [2024-11-06 20:00:06,266 INFO L226 Difference]: Without dead ends: 25247 [2024-11-06 20:00:06,279 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 20:00:06,280 INFO L432 NwaCegarLoop]: 127 mSDtfsCounter, 213 mSDsluCounter, 29 mSDsCounter, 0 mSdLazyCounter, 871 mSolverCounterSat, 127 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 213 SdHoareTripleChecker+Valid, 156 SdHoareTripleChecker+Invalid, 998 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 127 IncrementalHoareTripleChecker+Valid, 871 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:06,280 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [213 Valid, 156 Invalid, 998 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [127 Valid, 871 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:00:06,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25247 states. [2024-11-06 20:00:06,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25247 to 24350. [2024-11-06 20:00:06,448 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24350 states, 24349 states have (on average 1.0659986036387532) internal successors, (25956), 24349 states have internal predecessors, (25956), 0 states have call successors, (0), 0 states 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 20:00:06,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24350 states to 24350 states and 25956 transitions. [2024-11-06 20:00:06,469 INFO L78 Accepts]: Start accepts. Automaton has 24350 states and 25956 transitions. Word has length 726 [2024-11-06 20:00:06,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:06,470 INFO L471 AbstractCegarLoop]: Abstraction has 24350 states and 25956 transitions. [2024-11-06 20:00:06,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 190.0) internal successors, (570), 3 states have internal predecessors, (570), 0 states have call successors, (0), 0 states 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 20:00:06,470 INFO L276 IsEmpty]: Start isEmpty. Operand 24350 states and 25956 transitions. [2024-11-06 20:00:06,477 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 766 [2024-11-06 20:00:06,477 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:06,477 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:00:06,477 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-11-06 20:00:06,477 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:06,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:06,478 INFO L85 PathProgramCache]: Analyzing trace with hash 959696480, now seen corresponding path program 1 times [2024-11-06 20:00:06,478 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:06,478 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868163743] [2024-11-06 20:00:06,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:06,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:06,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:06,861 INFO L134 CoverageAnalysis]: Checked inductivity of 755 backedges. 155 proven. 0 refuted. 0 times theorem prover too weak. 600 trivial. 0 not checked. [2024-11-06 20:00:06,861 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:06,861 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868163743] [2024-11-06 20:00:06,861 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868163743] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:06,861 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:00:06,861 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:00:06,861 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [171181891] [2024-11-06 20:00:06,861 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:06,862 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:00:06,862 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:06,863 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:00:06,863 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:00:06,863 INFO L87 Difference]: Start difference. First operand 24350 states and 25956 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 20:00:07,803 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:07,803 INFO L93 Difference]: Finished difference Result 55010 states and 58611 transitions. [2024-11-06 20:00:07,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:00:07,803 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 765 [2024-11-06 20:00:07,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:07,828 INFO L225 Difference]: With dead ends: 55010 [2024-11-06 20:00:07,828 INFO L226 Difference]: Without dead ends: 28868 [2024-11-06 20:00:07,845 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 20:00:07,845 INFO L432 NwaCegarLoop]: 423 mSDtfsCounter, 341 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 814 mSolverCounterSat, 182 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 341 SdHoareTripleChecker+Valid, 448 SdHoareTripleChecker+Invalid, 996 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 182 IncrementalHoareTripleChecker+Valid, 814 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:07,845 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [341 Valid, 448 Invalid, 996 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [182 Valid, 814 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 20:00:07,860 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28868 states. [2024-11-06 20:00:08,025 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28868 to 23154. [2024-11-06 20:00:08,038 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23154 states, 23153 states have (on average 1.065477475921047) internal successors, (24669), 23153 states have internal predecessors, (24669), 0 states have call successors, (0), 0 states 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 20:00:08,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23154 states to 23154 states and 24669 transitions. [2024-11-06 20:00:08,056 INFO L78 Accepts]: Start accepts. Automaton has 23154 states and 24669 transitions. Word has length 765 [2024-11-06 20:00:08,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:08,057 INFO L471 AbstractCegarLoop]: Abstraction has 23154 states and 24669 transitions. [2024-11-06 20:00:08,057 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 20:00:08,057 INFO L276 IsEmpty]: Start isEmpty. Operand 23154 states and 24669 transitions. [2024-11-06 20:00:08,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 839 [2024-11-06 20:00:08,066 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:08,066 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, 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, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:00:08,066 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-06 20:00:08,067 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:08,067 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:08,067 INFO L85 PathProgramCache]: Analyzing trace with hash -1626760221, now seen corresponding path program 1 times [2024-11-06 20:00:08,067 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:08,067 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [131760922] [2024-11-06 20:00:08,067 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:08,067 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:08,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:08,393 INFO L134 CoverageAnalysis]: Checked inductivity of 1362 backedges. 976 proven. 0 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-11-06 20:00:08,393 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:08,393 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [131760922] [2024-11-06 20:00:08,393 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [131760922] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:08,393 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:00:08,394 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-06 20:00:08,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1214897144] [2024-11-06 20:00:08,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:08,394 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:00:08,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:08,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:00:08,395 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 20:00:08,395 INFO L87 Difference]: Start difference. First operand 23154 states and 24669 transitions. Second operand has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 0 states have call successors, (0), 0 states 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 20:00:09,571 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:09,572 INFO L93 Difference]: Finished difference Result 47494 states and 50514 transitions. [2024-11-06 20:00:09,574 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:00:09,574 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 0 states have call successors, (0), 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 838 [2024-11-06 20:00:09,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:09,593 INFO L225 Difference]: With dead ends: 47494 [2024-11-06 20:00:09,593 INFO L226 Difference]: Without dead ends: 22548 [2024-11-06 20:00:09,606 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 20:00:09,607 INFO L432 NwaCegarLoop]: 428 mSDtfsCounter, 537 mSDsluCounter, 32 mSDsCounter, 0 mSdLazyCounter, 1443 mSolverCounterSat, 364 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 537 SdHoareTripleChecker+Valid, 460 SdHoareTripleChecker+Invalid, 1807 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 364 IncrementalHoareTripleChecker+Valid, 1443 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:09,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [537 Valid, 460 Invalid, 1807 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [364 Valid, 1443 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 20:00:09,617 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 22548 states. [2024-11-06 20:00:09,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 22548 to 18334. [2024-11-06 20:00:09,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18334 states, 18333 states have (on average 1.0495827196858125) internal successors, (19242), 18333 states have internal predecessors, (19242), 0 states have call successors, (0), 0 states 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 20:00:09,740 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18334 states to 18334 states and 19242 transitions. [2024-11-06 20:00:09,740 INFO L78 Accepts]: Start accepts. Automaton has 18334 states and 19242 transitions. Word has length 838 [2024-11-06 20:00:09,741 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:09,741 INFO L471 AbstractCegarLoop]: Abstraction has 18334 states and 19242 transitions. [2024-11-06 20:00:09,741 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 140.25) internal successors, (561), 4 states have internal predecessors, (561), 0 states have call successors, (0), 0 states 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 20:00:09,741 INFO L276 IsEmpty]: Start isEmpty. Operand 18334 states and 19242 transitions. [2024-11-06 20:00:09,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 850 [2024-11-06 20:00:09,750 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:09,750 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, 6, 6, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 20:00:09,750 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-06 20:00:09,750 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:09,750 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:09,751 INFO L85 PathProgramCache]: Analyzing trace with hash -880788312, now seen corresponding path program 1 times [2024-11-06 20:00:09,751 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:09,751 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [854788328] [2024-11-06 20:00:09,751 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:09,751 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:09,965 INFO L134 CoverageAnalysis]: Checked inductivity of 1342 backedges. 753 proven. 0 refuted. 0 times theorem prover too weak. 589 trivial. 0 not checked. [2024-11-06 20:00:09,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:09,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [854788328] [2024-11-06 20:00:09,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [854788328] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:09,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:00:09,966 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:00:09,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865618458] [2024-11-06 20:00:09,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:09,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:00:09,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:09,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:00:09,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:00:09,966 INFO L87 Difference]: Start difference. First operand 18334 states and 19242 transitions. Second operand has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states 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 20:00:10,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:10,662 INFO L93 Difference]: Finished difference Result 39055 states and 40952 transitions. [2024-11-06 20:00:10,662 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:00:10,662 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 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 849 [2024-11-06 20:00:10,662 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:10,678 INFO L225 Difference]: With dead ends: 39055 [2024-11-06 20:00:10,678 INFO L226 Difference]: Without dead ends: 21022 [2024-11-06 20:00:10,687 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 20:00:10,688 INFO L432 NwaCegarLoop]: 458 mSDtfsCounter, 337 mSDsluCounter, 27 mSDsCounter, 0 mSdLazyCounter, 731 mSolverCounterSat, 132 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 337 SdHoareTripleChecker+Valid, 485 SdHoareTripleChecker+Invalid, 863 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 132 IncrementalHoareTripleChecker+Valid, 731 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:10,688 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [337 Valid, 485 Invalid, 863 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [132 Valid, 731 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:00:10,695 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21022 states. [2024-11-06 20:00:10,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21022 to 17429. [2024-11-06 20:00:10,796 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 17429 states, 17428 states have (on average 1.0496901537755337) internal successors, (18294), 17428 states have internal predecessors, (18294), 0 states have call successors, (0), 0 states 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 20:00:10,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17429 states to 17429 states and 18294 transitions. [2024-11-06 20:00:10,809 INFO L78 Accepts]: Start accepts. Automaton has 17429 states and 18294 transitions. Word has length 849 [2024-11-06 20:00:10,810 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:10,810 INFO L471 AbstractCegarLoop]: Abstraction has 17429 states and 18294 transitions. [2024-11-06 20:00:10,810 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 140.66666666666666) internal successors, (422), 3 states have internal predecessors, (422), 0 states have call successors, (0), 0 states 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 20:00:10,810 INFO L276 IsEmpty]: Start isEmpty. Operand 17429 states and 18294 transitions. [2024-11-06 20:00:10,818 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 885 [2024-11-06 20:00:10,818 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:10,819 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:00:10,819 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-06 20:00:10,820 INFO L396 AbstractCegarLoop]: === Iteration 24 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:10,820 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:10,820 INFO L85 PathProgramCache]: Analyzing trace with hash 378350950, now seen corresponding path program 1 times [2024-11-06 20:00:10,820 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:10,820 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1334754294] [2024-11-06 20:00:10,820 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:10,820 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:10,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:11,724 INFO L134 CoverageAnalysis]: Checked inductivity of 1481 backedges. 842 proven. 188 refuted. 0 times theorem prover too weak. 451 trivial. 0 not checked. [2024-11-06 20:00:11,724 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:11,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1334754294] [2024-11-06 20:00:11,724 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1334754294] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:00:11,724 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [343150006] [2024-11-06 20:00:11,724 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:11,724 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:00:11,724 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:00:11,726 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:00:11,727 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-06 20:00:11,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:11,925 INFO L255 TraceCheckSpWp]: Trace formula consists of 1037 conjuncts, 11 conjuncts are in the unsatisfiable core [2024-11-06 20:00:11,931 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:00:12,575 INFO L134 CoverageAnalysis]: Checked inductivity of 1481 backedges. 1239 proven. 2 refuted. 0 times theorem prover too weak. 240 trivial. 0 not checked. [2024-11-06 20:00:12,576 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 20:00:13,114 INFO L134 CoverageAnalysis]: Checked inductivity of 1481 backedges. 1090 proven. 0 refuted. 0 times theorem prover too weak. 391 trivial. 0 not checked. [2024-11-06 20:00:13,114 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [343150006] provided 1 perfect and 1 imperfect interpolant sequences [2024-11-06 20:00:13,114 INFO L185 FreeRefinementEngine]: Found 1 perfect and 2 imperfect interpolant sequences. [2024-11-06 20:00:13,114 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4, 5] total 9 [2024-11-06 20:00:13,114 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1094264110] [2024-11-06 20:00:13,114 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:13,115 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:00:13,115 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:13,115 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:00:13,116 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2024-11-06 20:00:13,116 INFO L87 Difference]: Start difference. First operand 17429 states and 18294 transitions. Second operand has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:00:14,178 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:14,178 INFO L93 Difference]: Finished difference Result 35801 states and 37577 transitions. [2024-11-06 20:00:14,178 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 20:00:14,179 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 884 [2024-11-06 20:00:14,179 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:14,192 INFO L225 Difference]: With dead ends: 35801 [2024-11-06 20:00:14,192 INFO L226 Difference]: Without dead ends: 18673 [2024-11-06 20:00:14,201 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1772 GetRequests, 1764 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=26, Invalid=64, Unknown=0, NotChecked=0, Total=90 [2024-11-06 20:00:14,201 INFO L432 NwaCegarLoop]: 483 mSDtfsCounter, 391 mSDsluCounter, 69 mSDsCounter, 0 mSdLazyCounter, 1266 mSolverCounterSat, 135 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 391 SdHoareTripleChecker+Valid, 552 SdHoareTripleChecker+Invalid, 1401 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 135 IncrementalHoareTripleChecker+Valid, 1266 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:14,201 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [391 Valid, 552 Invalid, 1401 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [135 Valid, 1266 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-06 20:00:14,209 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 18673 states. [2024-11-06 20:00:14,323 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 18673 to 18326. [2024-11-06 20:00:14,333 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 18326 states, 18325 states have (on average 1.0486221009549794) internal successors, (19216), 18325 states have internal predecessors, (19216), 0 states have call successors, (0), 0 states 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 20:00:14,346 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 18326 states to 18326 states and 19216 transitions. [2024-11-06 20:00:14,347 INFO L78 Accepts]: Start accepts. Automaton has 18326 states and 19216 transitions. Word has length 884 [2024-11-06 20:00:14,347 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:14,347 INFO L471 AbstractCegarLoop]: Abstraction has 18326 states and 19216 transitions. [2024-11-06 20:00:14,347 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 142.75) internal successors, (571), 4 states have internal predecessors, (571), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:00:14,347 INFO L276 IsEmpty]: Start isEmpty. Operand 18326 states and 19216 transitions. [2024-11-06 20:00:14,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 891 [2024-11-06 20:00:14,354 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:14,354 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:00:14,368 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-06 20:00:14,554 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable23 [2024-11-06 20:00:14,555 INFO L396 AbstractCegarLoop]: === Iteration 25 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:14,555 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:14,555 INFO L85 PathProgramCache]: Analyzing trace with hash -1275771118, now seen corresponding path program 1 times [2024-11-06 20:00:14,555 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:14,555 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [215719228] [2024-11-06 20:00:14,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:14,556 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:14,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:15,581 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 850 proven. 188 refuted. 0 times theorem prover too weak. 459 trivial. 0 not checked. [2024-11-06 20:00:15,582 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:15,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [215719228] [2024-11-06 20:00:15,582 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [215719228] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:00:15,582 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1501748177] [2024-11-06 20:00:15,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:15,582 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:00:15,582 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:00:15,584 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:00:15,586 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-06 20:00:15,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:15,788 INFO L255 TraceCheckSpWp]: Trace formula consists of 1044 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 20:00:15,795 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:00:16,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1497 backedges. 767 proven. 0 refuted. 0 times theorem prover too weak. 730 trivial. 0 not checked. [2024-11-06 20:00:16,139 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:00:16,140 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1501748177] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:16,140 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:00:16,140 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-06 20:00:16,140 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004028067] [2024-11-06 20:00:16,140 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:16,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:00:16,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:16,141 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:00:16,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:00:16,141 INFO L87 Difference]: Start difference. First operand 18326 states and 19216 transitions. Second operand has 4 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 0 states have call successors, (0), 0 states 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 20:00:17,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:17,420 INFO L93 Difference]: Finished difference Result 42950 states and 44904 transitions. [2024-11-06 20:00:17,420 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:00:17,420 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 0 states have call successors, (0), 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 890 [2024-11-06 20:00:17,421 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:17,440 INFO L225 Difference]: With dead ends: 42950 [2024-11-06 20:00:17,440 INFO L226 Difference]: Without dead ends: 24327 [2024-11-06 20:00:17,450 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 893 GetRequests, 888 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:00:17,451 INFO L432 NwaCegarLoop]: 85 mSDtfsCounter, 521 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1550 mSolverCounterSat, 219 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 143 SdHoareTripleChecker+Invalid, 1769 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 219 IncrementalHoareTripleChecker+Valid, 1550 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:17,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 143 Invalid, 1769 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [219 Valid, 1550 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-06 20:00:17,461 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24327 states. [2024-11-06 20:00:17,632 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24327 to 21323. [2024-11-06 20:00:17,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21323 states, 21322 states have (on average 1.0453053184504268) internal successors, (22288), 21322 states have internal predecessors, (22288), 0 states have call successors, (0), 0 states 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 20:00:17,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21323 states to 21323 states and 22288 transitions. [2024-11-06 20:00:17,671 INFO L78 Accepts]: Start accepts. Automaton has 21323 states and 22288 transitions. Word has length 890 [2024-11-06 20:00:17,671 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:17,671 INFO L471 AbstractCegarLoop]: Abstraction has 21323 states and 22288 transitions. [2024-11-06 20:00:17,672 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 118.25) internal successors, (473), 4 states have internal predecessors, (473), 0 states have call successors, (0), 0 states 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 20:00:17,672 INFO L276 IsEmpty]: Start isEmpty. Operand 21323 states and 22288 transitions. [2024-11-06 20:00:17,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 920 [2024-11-06 20:00:17,685 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:17,686 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, 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, 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, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 20:00:17,699 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2024-11-06 20:00:17,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:00:17,886 INFO L396 AbstractCegarLoop]: === Iteration 26 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:17,887 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:17,887 INFO L85 PathProgramCache]: Analyzing trace with hash -651586055, now seen corresponding path program 1 times [2024-11-06 20:00:17,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:17,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1142667453] [2024-11-06 20:00:17,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:17,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:18,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:18,900 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 912 proven. 188 refuted. 0 times theorem prover too weak. 489 trivial. 0 not checked. [2024-11-06 20:00:18,901 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:18,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1142667453] [2024-11-06 20:00:18,901 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1142667453] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:00:18,901 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1081006617] [2024-11-06 20:00:18,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:18,901 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:00:18,901 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:00:18,905 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:00:18,906 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-06 20:00:19,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:19,112 INFO L255 TraceCheckSpWp]: Trace formula consists of 1074 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 20:00:19,118 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:00:19,436 INFO L134 CoverageAnalysis]: Checked inductivity of 1589 backedges. 782 proven. 0 refuted. 0 times theorem prover too weak. 807 trivial. 0 not checked. [2024-11-06 20:00:19,436 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:00:19,436 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1081006617] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:19,436 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:00:19,436 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-06 20:00:19,436 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153834320] [2024-11-06 20:00:19,436 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:19,437 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:00:19,437 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:19,437 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:00:19,437 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:00:19,437 INFO L87 Difference]: Start difference. First operand 21323 states and 22288 transitions. Second operand has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 0 states 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 20:00:20,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:20,620 INFO L93 Difference]: Finished difference Result 47149 states and 49199 transitions. [2024-11-06 20:00:20,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:00:20,620 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 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 919 [2024-11-06 20:00:20,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:20,638 INFO L225 Difference]: With dead ends: 47149 [2024-11-06 20:00:20,638 INFO L226 Difference]: Without dead ends: 25529 [2024-11-06 20:00:20,645 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 922 GetRequests, 917 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:00:20,645 INFO L432 NwaCegarLoop]: 89 mSDtfsCounter, 521 mSDsluCounter, 58 mSDsCounter, 0 mSdLazyCounter, 1548 mSolverCounterSat, 215 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 521 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 1763 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 215 IncrementalHoareTripleChecker+Valid, 1548 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:20,645 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [521 Valid, 147 Invalid, 1763 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [215 Valid, 1548 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 20:00:20,655 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25529 states. [2024-11-06 20:00:20,771 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25529 to 20725. [2024-11-06 20:00:20,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20725 states, 20724 states have (on average 1.0460335842501447) internal successors, (21678), 20724 states have internal predecessors, (21678), 0 states have call successors, (0), 0 states 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 20:00:20,798 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20725 states to 20725 states and 21678 transitions. [2024-11-06 20:00:20,799 INFO L78 Accepts]: Start accepts. Automaton has 20725 states and 21678 transitions. Word has length 919 [2024-11-06 20:00:20,800 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:20,800 INFO L471 AbstractCegarLoop]: Abstraction has 20725 states and 21678 transitions. [2024-11-06 20:00:20,800 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 117.75) internal successors, (471), 4 states have internal predecessors, (471), 0 states have call successors, (0), 0 states 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 20:00:20,800 INFO L276 IsEmpty]: Start isEmpty. Operand 20725 states and 21678 transitions. [2024-11-06 20:00:20,808 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 964 [2024-11-06 20:00:20,808 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:20,808 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 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 20:00:20,822 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-06 20:00:21,009 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable25 [2024-11-06 20:00:21,009 INFO L396 AbstractCegarLoop]: === Iteration 27 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:21,009 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:21,010 INFO L85 PathProgramCache]: Analyzing trace with hash -37011290, now seen corresponding path program 1 times [2024-11-06 20:00:21,010 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:21,010 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479793894] [2024-11-06 20:00:21,010 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:21,010 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:21,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:21,434 INFO L134 CoverageAnalysis]: Checked inductivity of 1559 backedges. 905 proven. 0 refuted. 0 times theorem prover too weak. 654 trivial. 0 not checked. [2024-11-06 20:00:21,434 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:21,434 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479793894] [2024-11-06 20:00:21,434 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479793894] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:21,434 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:00:21,434 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:00:21,434 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277416180] [2024-11-06 20:00:21,434 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:21,435 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:00:21,435 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:21,435 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:00:21,435 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:00:21,436 INFO L87 Difference]: Start difference. First operand 20725 states and 21678 transitions. Second operand has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states 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 20:00:22,219 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:22,219 INFO L93 Difference]: Finished difference Result 41746 states and 43667 transitions. [2024-11-06 20:00:22,219 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:00:22,219 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 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 963 [2024-11-06 20:00:22,220 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:22,240 INFO L225 Difference]: With dead ends: 41746 [2024-11-06 20:00:22,240 INFO L226 Difference]: Without dead ends: 21322 [2024-11-06 20:00:22,252 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 20:00:22,252 INFO L432 NwaCegarLoop]: 489 mSDtfsCounter, 312 mSDsluCounter, 40 mSDsCounter, 0 mSdLazyCounter, 772 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 312 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 791 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 772 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:22,252 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [312 Valid, 529 Invalid, 791 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 772 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:00:22,262 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21322 states. [2024-11-06 20:00:22,367 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21322 to 20724. [2024-11-06 20:00:22,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20724 states, 20723 states have (on average 1.045987550065145) internal successors, (21676), 20723 states have internal predecessors, (21676), 0 states have call successors, (0), 0 states 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 20:00:22,393 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20724 states to 20724 states and 21676 transitions. [2024-11-06 20:00:22,394 INFO L78 Accepts]: Start accepts. Automaton has 20724 states and 21676 transitions. Word has length 963 [2024-11-06 20:00:22,394 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:22,394 INFO L471 AbstractCegarLoop]: Abstraction has 20724 states and 21676 transitions. [2024-11-06 20:00:22,394 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 157.0) internal successors, (471), 3 states have internal predecessors, (471), 0 states have call successors, (0), 0 states 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 20:00:22,394 INFO L276 IsEmpty]: Start isEmpty. Operand 20724 states and 21676 transitions. [2024-11-06 20:00:22,403 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 985 [2024-11-06 20:00:22,403 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:22,403 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:00:22,403 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2024-11-06 20:00:22,403 INFO L396 AbstractCegarLoop]: === Iteration 28 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:22,404 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:22,404 INFO L85 PathProgramCache]: Analyzing trace with hash -1214804894, now seen corresponding path program 1 times [2024-11-06 20:00:22,404 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:22,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1216313793] [2024-11-06 20:00:22,404 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:22,404 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:22,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:22,836 INFO L134 CoverageAnalysis]: Checked inductivity of 1575 backedges. 1026 proven. 0 refuted. 0 times theorem prover too weak. 549 trivial. 0 not checked. [2024-11-06 20:00:22,836 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:22,836 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1216313793] [2024-11-06 20:00:22,836 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1216313793] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:22,836 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:00:22,836 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:00:22,836 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [757077304] [2024-11-06 20:00:22,836 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:22,837 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:00:22,837 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:22,837 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:00:22,837 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:00:22,837 INFO L87 Difference]: Start difference. First operand 20724 states and 21676 transitions. Second operand has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states 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 20:00:23,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:23,542 INFO L93 Difference]: Finished difference Result 41146 states and 43048 transitions. [2024-11-06 20:00:23,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:00:23,542 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 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 984 [2024-11-06 20:00:23,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:23,557 INFO L225 Difference]: With dead ends: 41146 [2024-11-06 20:00:23,557 INFO L226 Difference]: Without dead ends: 20723 [2024-11-06 20:00:23,562 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 20:00:23,562 INFO L432 NwaCegarLoop]: 481 mSDtfsCounter, 128 mSDsluCounter, 33 mSDsCounter, 0 mSdLazyCounter, 778 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 128 SdHoareTripleChecker+Valid, 514 SdHoareTripleChecker+Invalid, 843 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 778 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:23,562 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [128 Valid, 514 Invalid, 843 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 778 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 20:00:23,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20723 states. [2024-11-06 20:00:23,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20723 to 20723. [2024-11-06 20:00:23,686 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20723 states, 20722 states have (on average 1.0350834861499856) internal successors, (21449), 20722 states have internal predecessors, (21449), 0 states have call successors, (0), 0 states 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 20:00:23,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20723 states to 20723 states and 21449 transitions. [2024-11-06 20:00:23,703 INFO L78 Accepts]: Start accepts. Automaton has 20723 states and 21449 transitions. Word has length 984 [2024-11-06 20:00:23,703 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:23,703 INFO L471 AbstractCegarLoop]: Abstraction has 20723 states and 21449 transitions. [2024-11-06 20:00:23,703 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 175.0) internal successors, (525), 3 states have internal predecessors, (525), 0 states have call successors, (0), 0 states 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 20:00:23,703 INFO L276 IsEmpty]: Start isEmpty. Operand 20723 states and 21449 transitions. [2024-11-06 20:00:23,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1003 [2024-11-06 20:00:23,712 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:23,712 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:00:23,713 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable27 [2024-11-06 20:00:23,713 INFO L396 AbstractCegarLoop]: === Iteration 29 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:23,713 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:23,713 INFO L85 PathProgramCache]: Analyzing trace with hash 1224360302, now seen corresponding path program 1 times [2024-11-06 20:00:23,713 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:23,713 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [579232440] [2024-11-06 20:00:23,713 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:23,713 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:23,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:24,414 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 1062 proven. 105 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-06 20:00:24,414 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:24,414 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [579232440] [2024-11-06 20:00:24,414 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [579232440] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:00:24,415 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [448750347] [2024-11-06 20:00:24,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:24,415 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:00:24,415 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:00:24,417 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-06 20:00:24,418 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-06 20:00:24,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:24,689 INFO L255 TraceCheckSpWp]: Trace formula consists of 1158 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 20:00:24,697 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:00:24,863 INFO L134 CoverageAnalysis]: Checked inductivity of 1647 backedges. 678 proven. 0 refuted. 0 times theorem prover too weak. 969 trivial. 0 not checked. [2024-11-06 20:00:24,863 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:00:24,863 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [448750347] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:24,863 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:00:24,863 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 6 [2024-11-06 20:00:24,863 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [73830793] [2024-11-06 20:00:24,863 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:24,864 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:00:24,864 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:24,864 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:00:24,864 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-06 20:00:24,865 INFO L87 Difference]: Start difference. First operand 20723 states and 21449 transitions. Second operand has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states 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 20:00:26,077 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:26,077 INFO L93 Difference]: Finished difference Result 48942 states and 50562 transitions. [2024-11-06 20:00:26,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:00:26,078 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 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 1002 [2024-11-06 20:00:26,078 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:26,105 INFO L225 Difference]: With dead ends: 48942 [2024-11-06 20:00:26,105 INFO L226 Difference]: Without dead ends: 28221 [2024-11-06 20:00:26,121 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1006 GetRequests, 1002 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-06 20:00:26,121 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 559 mSDsluCounter, 56 mSDsCounter, 0 mSdLazyCounter, 1557 mSolverCounterSat, 195 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 559 SdHoareTripleChecker+Valid, 137 SdHoareTripleChecker+Invalid, 1752 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 195 IncrementalHoareTripleChecker+Valid, 1557 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:26,121 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [559 Valid, 137 Invalid, 1752 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [195 Valid, 1557 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-06 20:00:26,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28221 states. [2024-11-06 20:00:26,332 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28221 to 22519. [2024-11-06 20:00:26,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22519 states, 22518 states have (on average 1.034061639577227) internal successors, (23285), 22518 states have internal predecessors, (23285), 0 states have call successors, (0), 0 states 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 20:00:26,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22519 states to 22519 states and 23285 transitions. [2024-11-06 20:00:26,368 INFO L78 Accepts]: Start accepts. Automaton has 22519 states and 23285 transitions. Word has length 1002 [2024-11-06 20:00:26,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:26,369 INFO L471 AbstractCegarLoop]: Abstraction has 22519 states and 23285 transitions. [2024-11-06 20:00:26,369 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 109.5) internal successors, (438), 4 states have internal predecessors, (438), 0 states have call successors, (0), 0 states 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 20:00:26,369 INFO L276 IsEmpty]: Start isEmpty. Operand 22519 states and 23285 transitions. [2024-11-06 20:00:26,380 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1054 [2024-11-06 20:00:26,380 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:26,380 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:00:26,394 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2024-11-06 20:00:26,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable28 [2024-11-06 20:00:26,581 INFO L396 AbstractCegarLoop]: === Iteration 30 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:26,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:26,581 INFO L85 PathProgramCache]: Analyzing trace with hash 502836976, now seen corresponding path program 1 times [2024-11-06 20:00:26,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:26,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [747950887] [2024-11-06 20:00:26,581 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:26,581 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:26,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:26,930 INFO L134 CoverageAnalysis]: Checked inductivity of 1824 backedges. 1338 proven. 0 refuted. 0 times theorem prover too weak. 486 trivial. 0 not checked. [2024-11-06 20:00:26,930 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:26,930 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [747950887] [2024-11-06 20:00:26,930 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [747950887] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:26,930 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:00:26,930 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:00:26,930 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [517593305] [2024-11-06 20:00:26,930 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:26,931 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:00:26,931 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:26,931 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:00:26,931 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:00:26,931 INFO L87 Difference]: Start difference. First operand 22519 states and 23285 transitions. Second operand has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 0 states 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 20:00:27,696 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:27,696 INFO L93 Difference]: Finished difference Result 51629 states and 53354 transitions. [2024-11-06 20:00:27,697 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:00:27,697 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 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 1053 [2024-11-06 20:00:27,697 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:27,723 INFO L225 Difference]: With dead ends: 51629 [2024-11-06 20:00:27,723 INFO L226 Difference]: Without dead ends: 29411 [2024-11-06 20:00:27,739 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 20:00:27,739 INFO L432 NwaCegarLoop]: 501 mSDtfsCounter, 52 mSDsluCounter, 31 mSDsCounter, 0 mSdLazyCounter, 860 mSolverCounterSat, 70 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 52 SdHoareTripleChecker+Valid, 532 SdHoareTripleChecker+Invalid, 930 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 70 IncrementalHoareTripleChecker+Valid, 860 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:27,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [52 Valid, 532 Invalid, 930 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [70 Valid, 860 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 20:00:27,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29411 states. [2024-11-06 20:00:27,921 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29411 to 27006. [2024-11-06 20:00:27,940 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27006 states, 27005 states have (on average 1.031142381040548) internal successors, (27846), 27005 states have internal predecessors, (27846), 0 states have call successors, (0), 0 states 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 20:00:27,963 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27006 states to 27006 states and 27846 transitions. [2024-11-06 20:00:27,964 INFO L78 Accepts]: Start accepts. Automaton has 27006 states and 27846 transitions. Word has length 1053 [2024-11-06 20:00:27,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:27,964 INFO L471 AbstractCegarLoop]: Abstraction has 27006 states and 27846 transitions. [2024-11-06 20:00:27,964 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 229.66666666666666) internal successors, (689), 3 states have internal predecessors, (689), 0 states have call successors, (0), 0 states 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 20:00:27,964 INFO L276 IsEmpty]: Start isEmpty. Operand 27006 states and 27846 transitions. [2024-11-06 20:00:27,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1127 [2024-11-06 20:00:27,977 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:27,978 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, 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, 6, 6, 6, 6, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:00:27,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable29 [2024-11-06 20:00:27,978 INFO L396 AbstractCegarLoop]: === Iteration 31 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:27,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:27,978 INFO L85 PathProgramCache]: Analyzing trace with hash -1682963098, now seen corresponding path program 1 times [2024-11-06 20:00:27,978 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:27,978 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [691737154] [2024-11-06 20:00:27,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:27,978 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:28,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:28,531 INFO L134 CoverageAnalysis]: Checked inductivity of 2243 backedges. 1222 proven. 0 refuted. 0 times theorem prover too weak. 1021 trivial. 0 not checked. [2024-11-06 20:00:28,532 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:28,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [691737154] [2024-11-06 20:00:28,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [691737154] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:28,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 20:00:28,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 20:00:28,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511381331] [2024-11-06 20:00:28,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:28,532 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 20:00:28,532 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:28,533 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 20:00:28,533 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 20:00:28,533 INFO L87 Difference]: Start difference. First operand 27006 states and 27846 transitions. Second operand has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:00:29,467 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:29,467 INFO L93 Difference]: Finished difference Result 62409 states and 64329 transitions. [2024-11-06 20:00:29,467 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 20:00:29,467 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 1126 [2024-11-06 20:00:29,468 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:29,494 INFO L225 Difference]: With dead ends: 62409 [2024-11-06 20:00:29,494 INFO L226 Difference]: Without dead ends: 35704 [2024-11-06 20:00:29,509 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 20:00:29,510 INFO L432 NwaCegarLoop]: 147 mSDtfsCounter, 259 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 842 mSolverCounterSat, 133 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 259 SdHoareTripleChecker+Valid, 171 SdHoareTripleChecker+Invalid, 975 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 133 IncrementalHoareTripleChecker+Valid, 842 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:29,510 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [259 Valid, 171 Invalid, 975 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [133 Valid, 842 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 20:00:29,523 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35704 states. [2024-11-06 20:00:29,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35704 to 31800. [2024-11-06 20:00:29,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31800 states, 31799 states have (on average 1.0298437057769112) internal successors, (32748), 31799 states have internal predecessors, (32748), 0 states have call successors, (0), 0 states 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 20:00:29,867 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31800 states to 31800 states and 32748 transitions. [2024-11-06 20:00:29,868 INFO L78 Accepts]: Start accepts. Automaton has 31800 states and 32748 transitions. Word has length 1126 [2024-11-06 20:00:29,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:29,869 INFO L471 AbstractCegarLoop]: Abstraction has 31800 states and 32748 transitions. [2024-11-06 20:00:29,869 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 170.33333333333334) internal successors, (511), 3 states have internal predecessors, (511), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 20:00:29,869 INFO L276 IsEmpty]: Start isEmpty. Operand 31800 states and 32748 transitions. [2024-11-06 20:00:29,881 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1142 [2024-11-06 20:00:29,881 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:29,881 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, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:00:29,881 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable30 [2024-11-06 20:00:29,881 INFO L396 AbstractCegarLoop]: === Iteration 32 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:29,882 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:29,882 INFO L85 PathProgramCache]: Analyzing trace with hash -1196675603, now seen corresponding path program 1 times [2024-11-06 20:00:29,882 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:29,882 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863405352] [2024-11-06 20:00:29,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:29,882 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:29,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:31,271 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1165 proven. 269 refuted. 0 times theorem prover too weak. 523 trivial. 0 not checked. [2024-11-06 20:00:31,272 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:31,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863405352] [2024-11-06 20:00:31,272 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863405352] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:00:31,272 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1908833284] [2024-11-06 20:00:31,272 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:31,272 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:00:31,272 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:00:31,274 INFO L229 MonitoredProcess]: Starting monitored process 11 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 20:00:31,275 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-06 20:00:31,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:31,521 INFO L255 TraceCheckSpWp]: Trace formula consists of 1297 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 20:00:31,527 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:00:32,102 INFO L134 CoverageAnalysis]: Checked inductivity of 1957 backedges. 1062 proven. 0 refuted. 0 times theorem prover too weak. 895 trivial. 0 not checked. [2024-11-06 20:00:32,102 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:00:32,102 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1908833284] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:32,102 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:00:32,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [4] total 7 [2024-11-06 20:00:32,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1068933201] [2024-11-06 20:00:32,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:32,103 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:00:32,103 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:32,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:00:32,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:00:32,104 INFO L87 Difference]: Start difference. First operand 31800 states and 32748 transitions. Second operand has 4 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 0 states have call successors, (0), 0 states 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 20:00:33,499 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:33,499 INFO L93 Difference]: Finished difference Result 70195 states and 72210 transitions. [2024-11-06 20:00:33,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:00:33,500 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 0 states have call successors, (0), 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 1141 [2024-11-06 20:00:33,501 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:33,531 INFO L225 Difference]: With dead ends: 70195 [2024-11-06 20:00:33,532 INFO L226 Difference]: Without dead ends: 38397 [2024-11-06 20:00:33,550 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1144 GetRequests, 1139 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:00:33,551 INFO L432 NwaCegarLoop]: 97 mSDtfsCounter, 380 mSDsluCounter, 50 mSDsCounter, 0 mSdLazyCounter, 1526 mSolverCounterSat, 171 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 380 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 171 IncrementalHoareTripleChecker+Valid, 1526 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:33,551 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [380 Valid, 147 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [171 Valid, 1526 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-06 20:00:33,574 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38397 states. [2024-11-06 20:00:33,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38397 to 31800. [2024-11-06 20:00:33,784 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31800 states, 31799 states have (on average 1.0298437057769112) internal successors, (32748), 31799 states have internal predecessors, (32748), 0 states have call successors, (0), 0 states 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 20:00:33,809 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31800 states to 31800 states and 32748 transitions. [2024-11-06 20:00:33,810 INFO L78 Accepts]: Start accepts. Automaton has 31800 states and 32748 transitions. Word has length 1141 [2024-11-06 20:00:33,811 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:33,811 INFO L471 AbstractCegarLoop]: Abstraction has 31800 states and 32748 transitions. [2024-11-06 20:00:33,811 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 0 states have call successors, (0), 0 states 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 20:00:33,811 INFO L276 IsEmpty]: Start isEmpty. Operand 31800 states and 32748 transitions. [2024-11-06 20:00:33,823 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1179 [2024-11-06 20:00:33,823 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 20:00:33,823 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, 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, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 3, 3, 3, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:00:33,836 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Ended with exit code 0 [2024-11-06 20:00:34,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable31,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:00:34,025 INFO L396 AbstractCegarLoop]: === Iteration 33 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 20:00:34,025 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 20:00:34,025 INFO L85 PathProgramCache]: Analyzing trace with hash 668651682, now seen corresponding path program 1 times [2024-11-06 20:00:34,025 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 20:00:34,025 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [506729585] [2024-11-06 20:00:34,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:34,025 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 20:00:34,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:34,948 INFO L134 CoverageAnalysis]: Checked inductivity of 2068 backedges. 1396 proven. 192 refuted. 0 times theorem prover too weak. 480 trivial. 0 not checked. [2024-11-06 20:00:34,948 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 20:00:34,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [506729585] [2024-11-06 20:00:34,948 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [506729585] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 20:00:34,948 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [48737415] [2024-11-06 20:00:34,948 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 20:00:34,949 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 20:00:34,949 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 20:00:34,950 INFO L229 MonitoredProcess]: Starting monitored process 12 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 20:00:34,951 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-06 20:00:35,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 20:00:35,197 INFO L255 TraceCheckSpWp]: Trace formula consists of 1334 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-06 20:00:35,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 20:00:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 2068 backedges. 1099 proven. 0 refuted. 0 times theorem prover too weak. 969 trivial. 0 not checked. [2024-11-06 20:00:35,662 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 20:00:35,662 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [48737415] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 20:00:35,662 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 20:00:35,662 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [5] total 7 [2024-11-06 20:00:35,662 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1047787920] [2024-11-06 20:00:35,663 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 20:00:35,663 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 20:00:35,663 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 20:00:35,663 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 20:00:35,663 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:00:35,664 INFO L87 Difference]: Start difference. First operand 31800 states and 32748 transitions. Second operand has 4 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 0 states have call successors, (0), 0 states 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 20:00:36,578 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 20:00:36,579 INFO L93 Difference]: Finished difference Result 47098 states and 48298 transitions. [2024-11-06 20:00:36,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 20:00:36,579 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 0 states have call successors, (0), 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 1178 [2024-11-06 20:00:36,580 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 20:00:36,581 INFO L225 Difference]: With dead ends: 47098 [2024-11-06 20:00:36,581 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 20:00:36,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1182 GetRequests, 1177 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-06 20:00:36,595 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 333 mSDsluCounter, 20 mSDsCounter, 0 mSdLazyCounter, 1052 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 333 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 1100 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 1052 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-06 20:00:36,595 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [333 Valid, 54 Invalid, 1100 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [48 Valid, 1052 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-06 20:00:36,595 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 20:00:36,596 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 20:00:36,596 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 20:00:36,596 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 20:00:36,596 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1178 [2024-11-06 20:00:36,596 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 20:00:36,596 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 20:00:36,597 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 153.5) internal successors, (614), 4 states have internal predecessors, (614), 0 states have call successors, (0), 0 states 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 20:00:36,597 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 20:00:36,597 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 20:00:36,600 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 20:00:36,615 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-06 20:00:36,800 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable32 [2024-11-06 20:00:36,803 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 20:00:36,804 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions.