./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/eca-rers2012/Problem14_label47.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/Problem14_label47.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', '073d0286f7f22cdfd8eea76e89ac58c5da1aee755973b8c9a7ddb0308333499f'] 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/Problem14_label47.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 073d0286f7f22cdfd8eea76e89ac58c5da1aee755973b8c9a7ddb0308333499f --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-06 19:54:06,645 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-06 19:54:06,702 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-06 19:54:06,706 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-06 19:54:06,707 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-06 19:54:06,724 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-06 19:54:06,725 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-06 19:54:06,725 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-06 19:54:06,726 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-06 19:54:06,726 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-06 19:54:06,726 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-06 19:54:06,727 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-06 19:54:06,727 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * Use SBE=true [2024-11-06 19:54:06,728 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-06 19:54:06,728 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-06 19:54:06,728 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-06 19:54:06,729 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-06 19:54:06,729 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-06 19:54:06,729 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-06 19:54:06,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:54:06,729 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-06 19:54:06,729 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-06 19:54:06,729 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-06 19:54:06,729 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-06 19:54:06,729 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-06 19:54:06,729 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-06 19:54:06,729 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-06 19:54:06,730 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-06 19:54:06,730 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-06 19:54:06,730 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 -> 073d0286f7f22cdfd8eea76e89ac58c5da1aee755973b8c9a7ddb0308333499f [2024-11-06 19:54:06,982 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-06 19:54:06,993 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-06 19:54:06,995 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-06 19:54:06,995 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-06 19:54:06,996 INFO L274 PluginConnector]: CDTParser initialized [2024-11-06 19:54:06,998 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/eca-rers2012/Problem14_label47.c [2024-11-06 19:54:08,107 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-06 19:54:08,410 INFO L384 CDTParser]: Found 1 translation units. [2024-11-06 19:54:08,410 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/eca-rers2012/Problem14_label47.c [2024-11-06 19:54:08,430 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2a8dd32ef/bc200c5fbae14d528524f1ad4a1f1c9c/FLAGa6a644fc6 [2024-11-06 19:54:08,693 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/2a8dd32ef/bc200c5fbae14d528524f1ad4a1f1c9c [2024-11-06 19:54:08,695 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-06 19:54:08,696 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-06 19:54:08,697 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-06 19:54:08,697 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-06 19:54:08,700 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-06 19:54:08,701 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:54:08" (1/1) ... [2024-11-06 19:54:08,701 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb1b2cf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:08, skipping insertion in model container [2024-11-06 19:54:08,702 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 06.11 07:54:08" (1/1) ... [2024-11-06 19:54:08,730 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-06 19:54:08,847 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/Problem14_label47.c[3529,3542] [2024-11-06 19:54:08,961 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:54:08,972 INFO L200 MainTranslator]: Completed pre-run [2024-11-06 19:54:08,983 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/Problem14_label47.c[3529,3542] [2024-11-06 19:54:09,050 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-06 19:54:09,066 INFO L204 MainTranslator]: Completed translation [2024-11-06 19:54:09,068 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09 WrapperNode [2024-11-06 19:54:09,069 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-06 19:54:09,070 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-06 19:54:09,070 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-06 19:54:09,070 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-06 19:54:09,075 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09" (1/1) ... [2024-11-06 19:54:09,090 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09" (1/1) ... [2024-11-06 19:54:09,158 INFO L138 Inliner]: procedures = 14, calls = 8, calls flagged for inlining = 3, calls inlined = 3, statements flattened = 859 [2024-11-06 19:54:09,158 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-06 19:54:09,159 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-06 19:54:09,159 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-06 19:54:09,159 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-06 19:54:09,166 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09" (1/1) ... [2024-11-06 19:54:09,166 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09" (1/1) ... [2024-11-06 19:54:09,175 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09" (1/1) ... [2024-11-06 19:54:09,218 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 19:54:09,219 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09" (1/1) ... [2024-11-06 19:54:09,219 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09" (1/1) ... [2024-11-06 19:54:09,231 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09" (1/1) ... [2024-11-06 19:54:09,237 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09" (1/1) ... [2024-11-06 19:54:09,240 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09" (1/1) ... [2024-11-06 19:54:09,244 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09" (1/1) ... [2024-11-06 19:54:09,250 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-06 19:54:09,251 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-06 19:54:09,251 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-06 19:54:09,251 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-06 19:54:09,252 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09" (1/1) ... [2024-11-06 19:54:09,256 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-06 19:54:09,275 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:09,287 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 19:54:09,291 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 19:54:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-06 19:54:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-06 19:54:09,308 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-06 19:54:09,308 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-06 19:54:09,363 INFO L238 CfgBuilder]: Building ICFG [2024-11-06 19:54:09,364 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-06 19:54:10,297 INFO L? ?]: Removed 123 outVars from TransFormulas that were not future-live. [2024-11-06 19:54:10,298 INFO L287 CfgBuilder]: Performing block encoding [2024-11-06 19:54:10,307 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-06 19:54:10,307 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-06 19:54:10,307 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:54:10 BoogieIcfgContainer [2024-11-06 19:54:10,307 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-06 19:54:10,309 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-06 19:54:10,309 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-06 19:54:10,312 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-06 19:54:10,312 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 06.11 07:54:08" (1/3) ... [2024-11-06 19:54:10,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b598547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:54:10, skipping insertion in model container [2024-11-06 19:54:10,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 06.11 07:54:09" (2/3) ... [2024-11-06 19:54:10,313 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b598547 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 06.11 07:54:10, skipping insertion in model container [2024-11-06 19:54:10,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:54:10" (3/3) ... [2024-11-06 19:54:10,314 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem14_label47.c [2024-11-06 19:54:10,324 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-06 19:54:10,324 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-06 19:54:10,370 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-06 19:54:10,389 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;@18d71b55, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-06 19:54:10,389 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-06 19:54:10,393 INFO L276 IsEmpty]: Start isEmpty. Operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 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 19:54:10,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 34 [2024-11-06 19:54:10,397 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:10,398 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] [2024-11-06 19:54:10,399 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:10,401 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:10,402 INFO L85 PathProgramCache]: Analyzing trace with hash 2113343065, now seen corresponding path program 1 times [2024-11-06 19:54:10,407 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:10,407 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1976499216] [2024-11-06 19:54:10,407 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:10,408 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:10,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:10,624 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 19:54:10,624 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:10,624 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1976499216] [2024-11-06 19:54:10,626 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1976499216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:10,626 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:10,626 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-06 19:54:10,627 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1299441061] [2024-11-06 19:54:10,628 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:10,631 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:10,631 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:10,644 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:10,645 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:10,648 INFO L87 Difference]: Start difference. First operand has 245 states, 243 states have (on average 1.7366255144032923) internal successors, (422), 244 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) Second operand has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 19:54:11,435 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:11,436 INFO L93 Difference]: Finished difference Result 685 states and 1216 transitions. [2024-11-06 19:54:11,437 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:11,438 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 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 33 [2024-11-06 19:54:11,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:11,444 INFO L225 Difference]: With dead ends: 685 [2024-11-06 19:54:11,444 INFO L226 Difference]: Without dead ends: 360 [2024-11-06 19:54:11,447 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 19:54:11,449 INFO L432 NwaCegarLoop]: 132 mSDtfsCounter, 185 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 535 mSolverCounterSat, 176 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 185 SdHoareTripleChecker+Valid, 139 SdHoareTripleChecker+Invalid, 711 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 176 IncrementalHoareTripleChecker+Valid, 535 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:11,449 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [185 Valid, 139 Invalid, 711 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [176 Valid, 535 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 19:54:11,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-11-06 19:54:11,493 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 360. [2024-11-06 19:54:11,495 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 360 states, 359 states have (on average 1.4206128133704736) internal successors, (510), 359 states have internal predecessors, (510), 0 states have call successors, (0), 0 states 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 19:54:11,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 510 transitions. [2024-11-06 19:54:11,499 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 510 transitions. Word has length 33 [2024-11-06 19:54:11,499 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:11,499 INFO L471 AbstractCegarLoop]: Abstraction has 360 states and 510 transitions. [2024-11-06 19:54:11,500 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 11.0) internal successors, (33), 2 states have internal predecessors, (33), 0 states have call successors, (0), 0 states 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 19:54:11,500 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 510 transitions. [2024-11-06 19:54:11,502 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-06 19:54:11,502 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:11,502 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:54:11,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-06 19:54:11,502 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:11,503 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:11,503 INFO L85 PathProgramCache]: Analyzing trace with hash 598342279, now seen corresponding path program 1 times [2024-11-06 19:54:11,503 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:11,503 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1553632365] [2024-11-06 19:54:11,503 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:11,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:11,920 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 30 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:54:11,920 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:11,920 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1553632365] [2024-11-06 19:54:11,921 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1553632365] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:11,921 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:11,921 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:11,921 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1182864891] [2024-11-06 19:54:11,921 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:11,922 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:54:11,922 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:11,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:54:11,922 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:54:11,922 INFO L87 Difference]: Start difference. First operand 360 states and 510 transitions. Second operand has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 19:54:12,677 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:12,677 INFO L93 Difference]: Finished difference Result 1074 states and 1446 transitions. [2024-11-06 19:54:12,677 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:54:12,677 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 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 112 [2024-11-06 19:54:12,678 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:12,680 INFO L225 Difference]: With dead ends: 1074 [2024-11-06 19:54:12,680 INFO L226 Difference]: Without dead ends: 716 [2024-11-06 19:54:12,681 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 19:54:12,682 INFO L432 NwaCegarLoop]: 110 mSDtfsCounter, 419 mSDsluCounter, 11 mSDsCounter, 0 mSdLazyCounter, 976 mSolverCounterSat, 40 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 419 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 1016 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 40 IncrementalHoareTripleChecker+Valid, 976 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:12,682 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [419 Valid, 121 Invalid, 1016 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [40 Valid, 976 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-06 19:54:12,683 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 716 states. [2024-11-06 19:54:12,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 716 to 716. [2024-11-06 19:54:12,698 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 716 states, 715 states have (on average 1.2615384615384615) internal successors, (902), 715 states have internal predecessors, (902), 0 states have call successors, (0), 0 states 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 19:54:12,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 716 states to 716 states and 902 transitions. [2024-11-06 19:54:12,699 INFO L78 Accepts]: Start accepts. Automaton has 716 states and 902 transitions. Word has length 112 [2024-11-06 19:54:12,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:12,700 INFO L471 AbstractCegarLoop]: Abstraction has 716 states and 902 transitions. [2024-11-06 19:54:12,700 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 28.0) internal successors, (112), 3 states have internal predecessors, (112), 0 states have call successors, (0), 0 states 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 19:54:12,700 INFO L276 IsEmpty]: Start isEmpty. Operand 716 states and 902 transitions. [2024-11-06 19:54:12,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 139 [2024-11-06 19:54:12,701 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:12,701 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:54:12,702 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-06 19:54:12,702 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:12,702 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:12,702 INFO L85 PathProgramCache]: Analyzing trace with hash -508469528, now seen corresponding path program 1 times [2024-11-06 19:54:12,702 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:12,702 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2135248333] [2024-11-06 19:54:12,702 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:12,703 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:12,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:12,897 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-06 19:54:12,898 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:12,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2135248333] [2024-11-06 19:54:12,898 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2135248333] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:12,898 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [768645700] [2024-11-06 19:54:12,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:12,898 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:12,898 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:12,901 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 19:54:12,902 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 19:54:12,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:12,995 INFO L255 TraceCheckSpWp]: Trace formula consists of 212 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:54:13,002 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:13,190 INFO L134 CoverageAnalysis]: Checked inductivity of 30 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 30 trivial. 0 not checked. [2024-11-06 19:54:13,191 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:13,195 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [768645700] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:13,195 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:13,195 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [3] total 4 [2024-11-06 19:54:13,195 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [439751874] [2024-11-06 19:54:13,196 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:13,196 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:13,196 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:13,196 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:13,196 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:54:13,196 INFO L87 Difference]: Start difference. First operand 716 states and 902 transitions. Second operand has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 19:54:13,733 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:13,733 INFO L93 Difference]: Finished difference Result 1252 states and 1612 transitions. [2024-11-06 19:54:13,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:13,734 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 138 [2024-11-06 19:54:13,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:13,737 INFO L225 Difference]: With dead ends: 1252 [2024-11-06 19:54:13,737 INFO L226 Difference]: Without dead ends: 1250 [2024-11-06 19:54:13,738 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 140 GetRequests, 137 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:54:13,738 INFO L432 NwaCegarLoop]: 32 mSDtfsCounter, 91 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 574 mSolverCounterSat, 25 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 91 SdHoareTripleChecker+Valid, 36 SdHoareTripleChecker+Invalid, 599 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 25 IncrementalHoareTripleChecker+Valid, 574 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:13,739 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [91 Valid, 36 Invalid, 599 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [25 Valid, 574 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:54:13,740 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1250 states. [2024-11-06 19:54:13,765 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1250 to 894. [2024-11-06 19:54:13,771 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 894 states, 893 states have (on average 1.3370660694288914) internal successors, (1194), 893 states have internal predecessors, (1194), 0 states have call successors, (0), 0 states 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 19:54:13,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1194 transitions. [2024-11-06 19:54:13,773 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1194 transitions. Word has length 138 [2024-11-06 19:54:13,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:13,774 INFO L471 AbstractCegarLoop]: Abstraction has 894 states and 1194 transitions. [2024-11-06 19:54:13,774 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 36.333333333333336) internal successors, (109), 2 states have internal predecessors, (109), 0 states have call successors, (0), 0 states 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 19:54:13,774 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1194 transitions. [2024-11-06 19:54:13,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 193 [2024-11-06 19:54:13,778 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:13,778 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 19:54:13,791 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 19:54:13,982 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:13,983 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:13,983 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:13,983 INFO L85 PathProgramCache]: Analyzing trace with hash 215067956, now seen corresponding path program 1 times [2024-11-06 19:54:13,983 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:13,983 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [427246570] [2024-11-06 19:54:13,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:13,983 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:14,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:14,251 INFO L134 CoverageAnalysis]: Checked inductivity of 139 backedges. 137 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2024-11-06 19:54:14,252 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:14,252 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [427246570] [2024-11-06 19:54:14,252 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [427246570] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:14,252 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:14,252 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:14,252 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1197670725] [2024-11-06 19:54:14,252 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:14,252 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:54:14,253 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:14,253 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:54:14,253 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:54:14,254 INFO L87 Difference]: Start difference. First operand 894 states and 1194 transitions. Second operand has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states 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 19:54:14,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:14,882 INFO L93 Difference]: Finished difference Result 1993 states and 2629 transitions. [2024-11-06 19:54:14,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:54:14,882 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 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 192 [2024-11-06 19:54:14,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:14,886 INFO L225 Difference]: With dead ends: 1993 [2024-11-06 19:54:14,886 INFO L226 Difference]: Without dead ends: 1072 [2024-11-06 19:54:14,887 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 19:54:14,887 INFO L432 NwaCegarLoop]: 111 mSDtfsCounter, 102 mSDsluCounter, 10 mSDsCounter, 0 mSdLazyCounter, 736 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 102 SdHoareTripleChecker+Valid, 121 SdHoareTripleChecker+Invalid, 802 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 736 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:14,888 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [102 Valid, 121 Invalid, 802 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 736 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:54:14,889 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1072 states. [2024-11-06 19:54:14,903 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1072 to 1072. [2024-11-06 19:54:14,905 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states 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 19:54:14,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2024-11-06 19:54:14,907 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 192 [2024-11-06 19:54:14,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:14,908 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2024-11-06 19:54:14,908 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 47.75) internal successors, (191), 3 states have internal predecessors, (191), 0 states have call successors, (0), 0 states 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 19:54:14,908 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2024-11-06 19:54:14,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2024-11-06 19:54:14,909 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:14,909 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 19:54:14,910 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-06 19:54:14,910 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:14,910 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:14,910 INFO L85 PathProgramCache]: Analyzing trace with hash 1219303416, now seen corresponding path program 1 times [2024-11-06 19:54:14,910 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:14,910 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [133430177] [2024-11-06 19:54:14,910 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:14,911 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:14,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:15,175 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 61 proven. 65 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:54:15,175 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:15,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [133430177] [2024-11-06 19:54:15,175 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [133430177] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:15,175 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1262597429] [2024-11-06 19:54:15,175 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:15,175 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:15,176 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:15,178 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 19:54:15,180 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 19:54:15,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:15,259 INFO L255 TraceCheckSpWp]: Trace formula consists of 299 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:54:15,261 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:15,302 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 61 proven. 0 refuted. 0 times theorem prover too weak. 65 trivial. 0 not checked. [2024-11-06 19:54:15,302 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:15,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1262597429] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:15,302 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:15,303 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-06 19:54:15,303 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1424045958] [2024-11-06 19:54:15,303 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:15,303 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:15,303 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:15,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:15,303 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:15,304 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states 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 19:54:15,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:15,731 INFO L93 Difference]: Finished difference Result 2498 states and 3033 transitions. [2024-11-06 19:54:15,731 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:15,731 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 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 204 [2024-11-06 19:54:15,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:15,735 INFO L225 Difference]: With dead ends: 2498 [2024-11-06 19:54:15,735 INFO L226 Difference]: Without dead ends: 1428 [2024-11-06 19:54:15,736 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 207 GetRequests, 203 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:15,737 INFO L432 NwaCegarLoop]: 81 mSDtfsCounter, 150 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 439 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 150 SdHoareTripleChecker+Valid, 85 SdHoareTripleChecker+Invalid, 510 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 439 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:15,737 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [150 Valid, 85 Invalid, 510 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 439 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 19:54:15,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1428 states. [2024-11-06 19:54:15,750 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1428 to 1072. [2024-11-06 19:54:15,752 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1072 states, 1071 states have (on average 1.1802054154995332) internal successors, (1264), 1071 states have internal predecessors, (1264), 0 states have call successors, (0), 0 states 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 19:54:15,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1072 states to 1072 states and 1264 transitions. [2024-11-06 19:54:15,754 INFO L78 Accepts]: Start accepts. Automaton has 1072 states and 1264 transitions. Word has length 204 [2024-11-06 19:54:15,755 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:15,755 INFO L471 AbstractCegarLoop]: Abstraction has 1072 states and 1264 transitions. [2024-11-06 19:54:15,755 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 46.666666666666664) internal successors, (140), 3 states have internal predecessors, (140), 0 states have call successors, (0), 0 states 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 19:54:15,755 INFO L276 IsEmpty]: Start isEmpty. Operand 1072 states and 1264 transitions. [2024-11-06 19:54:15,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 208 [2024-11-06 19:54:15,756 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:15,756 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2024-11-06 19:54:15,768 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-06 19:54:15,957 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:15,957 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:15,958 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:15,958 INFO L85 PathProgramCache]: Analyzing trace with hash -994795489, now seen corresponding path program 1 times [2024-11-06 19:54:15,958 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:15,958 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2060937407] [2024-11-06 19:54:15,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:15,958 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:15,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:16,116 INFO L134 CoverageAnalysis]: Checked inductivity of 129 backedges. 129 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-06 19:54:16,117 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:16,117 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2060937407] [2024-11-06 19:54:16,119 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2060937407] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:16,119 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:16,119 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:16,119 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1976404839] [2024-11-06 19:54:16,119 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:16,120 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:16,120 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:16,120 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:16,120 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:16,120 INFO L87 Difference]: Start difference. First operand 1072 states and 1264 transitions. Second operand has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:54:16,588 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:16,589 INFO L93 Difference]: Finished difference Result 2676 states and 3213 transitions. [2024-11-06 19:54:16,589 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:16,589 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 207 [2024-11-06 19:54:16,590 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:16,596 INFO L225 Difference]: With dead ends: 2676 [2024-11-06 19:54:16,596 INFO L226 Difference]: Without dead ends: 1606 [2024-11-06 19:54:16,598 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:16,600 INFO L432 NwaCegarLoop]: 54 mSDtfsCounter, 111 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 450 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 111 SdHoareTripleChecker+Valid, 58 SdHoareTripleChecker+Invalid, 501 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 450 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:16,600 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [111 Valid, 58 Invalid, 501 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 450 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 19:54:16,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1606 states. [2024-11-06 19:54:16,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1606 to 1428. [2024-11-06 19:54:16,628 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1428 states, 1427 states have (on average 1.156271899088998) internal successors, (1650), 1427 states have internal predecessors, (1650), 0 states have call successors, (0), 0 states 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 19:54:16,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1428 states to 1428 states and 1650 transitions. [2024-11-06 19:54:16,633 INFO L78 Accepts]: Start accepts. Automaton has 1428 states and 1650 transitions. Word has length 207 [2024-11-06 19:54:16,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:16,634 INFO L471 AbstractCegarLoop]: Abstraction has 1428 states and 1650 transitions. [2024-11-06 19:54:16,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 69.0) internal successors, (207), 3 states have internal predecessors, (207), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:54:16,634 INFO L276 IsEmpty]: Start isEmpty. Operand 1428 states and 1650 transitions. [2024-11-06 19:54:16,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 327 [2024-11-06 19:54:16,638 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:16,639 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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:16,639 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-06 19:54:16,640 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:16,640 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:16,640 INFO L85 PathProgramCache]: Analyzing trace with hash 1450309740, now seen corresponding path program 1 times [2024-11-06 19:54:16,640 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:16,640 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1926885890] [2024-11-06 19:54:16,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:16,641 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:16,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:17,018 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 147 proven. 130 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2024-11-06 19:54:17,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:17,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1926885890] [2024-11-06 19:54:17,019 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1926885890] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:17,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2029153507] [2024-11-06 19:54:17,019 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:17,019 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:17,019 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:17,021 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 19:54:17,023 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 19:54:17,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:17,132 INFO L255 TraceCheckSpWp]: Trace formula consists of 443 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:54:17,141 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:17,432 INFO L134 CoverageAnalysis]: Checked inductivity of 359 backedges. 92 proven. 0 refuted. 0 times theorem prover too weak. 267 trivial. 0 not checked. [2024-11-06 19:54:17,432 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:17,432 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2029153507] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:17,432 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:17,432 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-06 19:54:17,432 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [865867347] [2024-11-06 19:54:17,432 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:17,433 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:17,433 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:17,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:17,436 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:17,436 INFO L87 Difference]: Start difference. First operand 1428 states and 1650 transitions. Second operand has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:54:17,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:17,897 INFO L93 Difference]: Finished difference Result 3210 states and 3788 transitions. [2024-11-06 19:54:17,899 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:17,899 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 326 [2024-11-06 19:54:17,900 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:17,905 INFO L225 Difference]: With dead ends: 3210 [2024-11-06 19:54:17,905 INFO L226 Difference]: Without dead ends: 1962 [2024-11-06 19:54:17,906 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 329 GetRequests, 325 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:17,908 INFO L432 NwaCegarLoop]: 44 mSDtfsCounter, 82 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 123 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 82 SdHoareTripleChecker+Valid, 47 SdHoareTripleChecker+Invalid, 525 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 123 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:17,908 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [82 Valid, 47 Invalid, 525 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [123 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 19:54:17,910 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2024-11-06 19:54:17,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2024-11-06 19:54:17,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.1402131239484015) internal successors, (2033), 1783 states have internal predecessors, (2033), 0 states have call successors, (0), 0 states 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 19:54:17,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 2033 transitions. [2024-11-06 19:54:17,935 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 2033 transitions. Word has length 326 [2024-11-06 19:54:17,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:17,935 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 2033 transitions. [2024-11-06 19:54:17,935 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 47.333333333333336) internal successors, (142), 2 states have internal predecessors, (142), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:54:17,936 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 2033 transitions. [2024-11-06 19:54:17,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 404 [2024-11-06 19:54:17,942 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:17,943 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 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] [2024-11-06 19:54:17,958 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 19:54:18,143 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:18,144 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:18,144 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:18,144 INFO L85 PathProgramCache]: Analyzing trace with hash -640505863, now seen corresponding path program 1 times [2024-11-06 19:54:18,144 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:18,144 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [17546929] [2024-11-06 19:54:18,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:18,145 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:18,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:18,419 INFO L134 CoverageAnalysis]: Checked inductivity of 622 backedges. 357 proven. 0 refuted. 0 times theorem prover too weak. 265 trivial. 0 not checked. [2024-11-06 19:54:18,420 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:18,420 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [17546929] [2024-11-06 19:54:18,420 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [17546929] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:18,420 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:18,420 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:18,420 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845305524] [2024-11-06 19:54:18,420 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:18,420 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:54:18,420 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:18,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:54:18,421 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:54:18,421 INFO L87 Difference]: Start difference. First operand 1784 states and 2033 transitions. Second operand has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states 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 19:54:18,926 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:18,927 INFO L93 Difference]: Finished difference Result 3595 states and 4116 transitions. [2024-11-06 19:54:18,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:54:18,927 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 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 403 [2024-11-06 19:54:18,928 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:18,932 INFO L225 Difference]: With dead ends: 3595 [2024-11-06 19:54:18,933 INFO L226 Difference]: Without dead ends: 1962 [2024-11-06 19:54:18,936 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 19:54:18,937 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 124 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 686 mSolverCounterSat, 45 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 124 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 731 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 45 IncrementalHoareTripleChecker+Valid, 686 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:18,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [124 Valid, 17 Invalid, 731 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [45 Valid, 686 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:54:18,939 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1962 states. [2024-11-06 19:54:18,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1962 to 1784. [2024-11-06 19:54:18,966 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1784 states, 1783 states have (on average 1.089736399326977) internal successors, (1943), 1783 states have internal predecessors, (1943), 0 states have call successors, (0), 0 states 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 19:54:18,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1784 states to 1784 states and 1943 transitions. [2024-11-06 19:54:18,970 INFO L78 Accepts]: Start accepts. Automaton has 1784 states and 1943 transitions. Word has length 403 [2024-11-06 19:54:18,971 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:18,972 INFO L471 AbstractCegarLoop]: Abstraction has 1784 states and 1943 transitions. [2024-11-06 19:54:18,972 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 55.0) internal successors, (220), 3 states have internal predecessors, (220), 0 states have call successors, (0), 0 states 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 19:54:18,972 INFO L276 IsEmpty]: Start isEmpty. Operand 1784 states and 1943 transitions. [2024-11-06 19:54:18,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 427 [2024-11-06 19:54:18,978 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:18,978 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:18,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-06 19:54:18,978 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:18,978 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:18,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1483478618, now seen corresponding path program 1 times [2024-11-06 19:54:18,979 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:18,979 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486784464] [2024-11-06 19:54:18,979 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:18,979 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:19,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:19,257 INFO L134 CoverageAnalysis]: Checked inductivity of 643 backedges. 329 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-06 19:54:19,258 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:19,258 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486784464] [2024-11-06 19:54:19,258 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486784464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:19,258 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:19,258 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:19,258 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1524299624] [2024-11-06 19:54:19,258 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:19,258 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:19,258 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:19,259 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:19,259 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:19,259 INFO L87 Difference]: Start difference. First operand 1784 states and 1943 transitions. Second operand has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states 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 19:54:19,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:19,645 INFO L93 Difference]: Finished difference Result 4100 states and 4527 transitions. [2024-11-06 19:54:19,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:19,646 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 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 426 [2024-11-06 19:54:19,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:19,652 INFO L225 Difference]: With dead ends: 4100 [2024-11-06 19:54:19,652 INFO L226 Difference]: Without dead ends: 2496 [2024-11-06 19:54:19,653 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 19:54:19,655 INFO L432 NwaCegarLoop]: 198 mSDtfsCounter, 113 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 113 SdHoareTripleChecker+Valid, 202 SdHoareTripleChecker+Invalid, 488 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:19,655 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [113 Valid, 202 Invalid, 488 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 19:54:19,657 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2496 states. [2024-11-06 19:54:19,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2496 to 2496. [2024-11-06 19:54:19,683 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2496 states, 2495 states have (on average 1.092184368737475) internal successors, (2725), 2495 states have internal predecessors, (2725), 0 states have call successors, (0), 0 states 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 19:54:19,687 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2496 states to 2496 states and 2725 transitions. [2024-11-06 19:54:19,687 INFO L78 Accepts]: Start accepts. Automaton has 2496 states and 2725 transitions. Word has length 426 [2024-11-06 19:54:19,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:19,687 INFO L471 AbstractCegarLoop]: Abstraction has 2496 states and 2725 transitions. [2024-11-06 19:54:19,688 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 72.66666666666667) internal successors, (218), 3 states have internal predecessors, (218), 0 states have call successors, (0), 0 states 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 19:54:19,688 INFO L276 IsEmpty]: Start isEmpty. Operand 2496 states and 2725 transitions. [2024-11-06 19:54:19,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 468 [2024-11-06 19:54:19,692 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:19,693 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:19,693 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-06 19:54:19,693 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:19,693 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:19,693 INFO L85 PathProgramCache]: Analyzing trace with hash -1311069121, now seen corresponding path program 1 times [2024-11-06 19:54:19,693 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:19,693 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [157902840] [2024-11-06 19:54:19,693 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:19,694 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:19,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:19,868 INFO L134 CoverageAnalysis]: Checked inductivity of 757 backedges. 443 proven. 0 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-06 19:54:19,869 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:19,869 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [157902840] [2024-11-06 19:54:19,869 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [157902840] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:19,869 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:19,869 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:19,869 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1585668105] [2024-11-06 19:54:19,869 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:19,869 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:19,870 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:19,870 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:19,871 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:19,871 INFO L87 Difference]: Start difference. First operand 2496 states and 2725 transitions. Second operand has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states 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 19:54:20,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:20,278 INFO L93 Difference]: Finished difference Result 6058 states and 6693 transitions. [2024-11-06 19:54:20,279 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:20,279 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 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 19:54:20,280 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:20,287 INFO L225 Difference]: With dead ends: 6058 [2024-11-06 19:54:20,288 INFO L226 Difference]: Without dead ends: 3742 [2024-11-06 19:54:20,291 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 19:54:20,293 INFO L432 NwaCegarLoop]: 47 mSDtfsCounter, 74 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 423 mSolverCounterSat, 55 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 74 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 478 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 55 IncrementalHoareTripleChecker+Valid, 423 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:20,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [74 Valid, 50 Invalid, 478 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [55 Valid, 423 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 19:54:20,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2024-11-06 19:54:20,333 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3742. [2024-11-06 19:54:20,337 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3742 states, 3741 states have (on average 1.0828655439722) internal successors, (4051), 3741 states have internal predecessors, (4051), 0 states have call successors, (0), 0 states 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 19:54:20,342 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3742 states to 3742 states and 4051 transitions. [2024-11-06 19:54:20,343 INFO L78 Accepts]: Start accepts. Automaton has 3742 states and 4051 transitions. Word has length 467 [2024-11-06 19:54:20,344 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:20,344 INFO L471 AbstractCegarLoop]: Abstraction has 3742 states and 4051 transitions. [2024-11-06 19:54:20,344 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 86.33333333333333) internal successors, (259), 3 states have internal predecessors, (259), 0 states have call successors, (0), 0 states 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 19:54:20,344 INFO L276 IsEmpty]: Start isEmpty. Operand 3742 states and 4051 transitions. [2024-11-06 19:54:20,346 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 504 [2024-11-06 19:54:20,346 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:20,346 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:20,347 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-06 19:54:20,347 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:20,347 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:20,347 INFO L85 PathProgramCache]: Analyzing trace with hash 2139477517, now seen corresponding path program 1 times [2024-11-06 19:54:20,347 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:20,347 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1593779911] [2024-11-06 19:54:20,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:20,348 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:20,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:20,631 INFO L134 CoverageAnalysis]: Checked inductivity of 973 backedges. 590 proven. 0 refuted. 0 times theorem prover too weak. 383 trivial. 0 not checked. [2024-11-06 19:54:20,631 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:20,631 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1593779911] [2024-11-06 19:54:20,631 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1593779911] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:20,631 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:20,631 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:20,632 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1249635786] [2024-11-06 19:54:20,632 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:20,632 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:20,632 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:20,633 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:20,633 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:20,633 INFO L87 Difference]: Start difference. First operand 3742 states and 4051 transitions. Second operand has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states 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 19:54:21,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:21,136 INFO L93 Difference]: Finished difference Result 7304 states and 7921 transitions. [2024-11-06 19:54:21,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:21,137 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 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 503 [2024-11-06 19:54:21,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:21,148 INFO L225 Difference]: With dead ends: 7304 [2024-11-06 19:54:21,149 INFO L226 Difference]: Without dead ends: 3742 [2024-11-06 19:54:21,153 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 19:54:21,154 INFO L432 NwaCegarLoop]: 238 mSDtfsCounter, 103 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 417 mSolverCounterSat, 21 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 103 SdHoareTripleChecker+Valid, 242 SdHoareTripleChecker+Invalid, 438 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 21 IncrementalHoareTripleChecker+Valid, 417 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:21,154 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [103 Valid, 242 Invalid, 438 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [21 Valid, 417 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-11-06 19:54:21,157 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3742 states. [2024-11-06 19:54:21,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3742 to 3208. [2024-11-06 19:54:21,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.078578110383536) internal successors, (3459), 3207 states have internal predecessors, (3459), 0 states have call successors, (0), 0 states 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 19:54:21,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3459 transitions. [2024-11-06 19:54:21,201 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3459 transitions. Word has length 503 [2024-11-06 19:54:21,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:21,202 INFO L471 AbstractCegarLoop]: Abstraction has 3208 states and 3459 transitions. [2024-11-06 19:54:21,202 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 75.66666666666667) internal successors, (227), 3 states have internal predecessors, (227), 0 states have call successors, (0), 0 states 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 19:54:21,202 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3459 transitions. [2024-11-06 19:54:21,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-06 19:54:21,205 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:21,205 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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] [2024-11-06 19:54:21,205 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-06 19:54:21,206 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:21,206 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:21,206 INFO L85 PathProgramCache]: Analyzing trace with hash 801301915, now seen corresponding path program 1 times [2024-11-06 19:54:21,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:21,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1923580872] [2024-11-06 19:54:21,207 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:21,207 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:21,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:21,507 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 797 proven. 110 refuted. 0 times theorem prover too weak. 314 trivial. 0 not checked. [2024-11-06 19:54:21,507 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:21,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1923580872] [2024-11-06 19:54:21,507 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1923580872] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:21,507 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [920162251] [2024-11-06 19:54:21,507 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:21,508 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:21,508 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:21,510 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 19:54:21,513 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 19:54:21,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:21,668 INFO L255 TraceCheckSpWp]: Trace formula consists of 782 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:54:21,673 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:21,725 INFO L134 CoverageAnalysis]: Checked inductivity of 1221 backedges. 154 proven. 0 refuted. 0 times theorem prover too weak. 1067 trivial. 0 not checked. [2024-11-06 19:54:21,725 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:21,726 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [920162251] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:21,726 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:21,726 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-06 19:54:21,727 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2087302080] [2024-11-06 19:54:21,727 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:21,727 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:21,727 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:21,728 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:21,728 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:54:21,728 INFO L87 Difference]: Start difference. First operand 3208 states and 3459 transitions. Second operand has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states 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 19:54:22,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:22,099 INFO L93 Difference]: Finished difference Result 7126 states and 7684 transitions. [2024-11-06 19:54:22,100 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:22,100 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 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 622 [2024-11-06 19:54:22,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:22,108 INFO L225 Difference]: With dead ends: 7126 [2024-11-06 19:54:22,108 INFO L226 Difference]: Without dead ends: 3386 [2024-11-06 19:54:22,111 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 625 GetRequests, 622 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:54:22,112 INFO L432 NwaCegarLoop]: 236 mSDtfsCounter, 148 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 399 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 241 SdHoareTripleChecker+Invalid, 434 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 399 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:22,112 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 241 Invalid, 434 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 399 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 19:54:22,115 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2024-11-06 19:54:22,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3208. [2024-11-06 19:54:22,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.073277206111631) internal successors, (3442), 3207 states have internal predecessors, (3442), 0 states have call successors, (0), 0 states 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 19:54:22,156 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3442 transitions. [2024-11-06 19:54:22,156 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3442 transitions. Word has length 622 [2024-11-06 19:54:22,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:22,157 INFO L471 AbstractCegarLoop]: Abstraction has 3208 states and 3442 transitions. [2024-11-06 19:54:22,157 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.33333333333333) internal successors, (193), 3 states have internal predecessors, (193), 0 states have call successors, (0), 0 states 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 19:54:22,158 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3442 transitions. [2024-11-06 19:54:22,161 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 702 [2024-11-06 19:54:22,161 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:22,161 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 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] [2024-11-06 19:54:22,175 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 19:54:22,362 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 19:54:22,362 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:22,362 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:22,362 INFO L85 PathProgramCache]: Analyzing trace with hash -1110604027, now seen corresponding path program 1 times [2024-11-06 19:54:22,362 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:22,363 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1269055423] [2024-11-06 19:54:22,363 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:22,363 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:22,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:22,620 INFO L134 CoverageAnalysis]: Checked inductivity of 1646 backedges. 1191 proven. 110 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-11-06 19:54:22,620 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:22,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1269055423] [2024-11-06 19:54:22,620 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1269055423] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:22,620 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [416325033] [2024-11-06 19:54:22,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:22,621 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:22,621 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:22,623 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 19:54:22,624 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 19:54:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:22,767 INFO L255 TraceCheckSpWp]: Trace formula consists of 881 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:54:22,783 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:22,832 INFO L134 CoverageAnalysis]: Checked inductivity of 1646 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 1461 trivial. 0 not checked. [2024-11-06 19:54:22,833 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:22,833 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [416325033] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:22,833 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:22,833 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-06 19:54:22,833 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645521214] [2024-11-06 19:54:22,833 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:22,834 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:22,834 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:22,835 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:22,835 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:54:22,835 INFO L87 Difference]: Start difference. First operand 3208 states and 3442 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 19:54:23,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:23,202 INFO L93 Difference]: Finished difference Result 6592 states and 7086 transitions. [2024-11-06 19:54:23,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:23,203 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 701 [2024-11-06 19:54:23,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:23,213 INFO L225 Difference]: With dead ends: 6592 [2024-11-06 19:54:23,214 INFO L226 Difference]: Without dead ends: 3386 [2024-11-06 19:54:23,217 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 704 GetRequests, 701 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:54:23,218 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 148 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 391 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 236 SdHoareTripleChecker+Invalid, 426 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 391 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:23,218 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 236 Invalid, 426 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 391 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 19:54:23,221 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3386 states. [2024-11-06 19:54:23,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3386 to 3208. [2024-11-06 19:54:23,255 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3208 states, 3207 states have (on average 1.0673526660430308) internal successors, (3423), 3207 states have internal predecessors, (3423), 0 states have call successors, (0), 0 states 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 19:54:23,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3208 states to 3208 states and 3423 transitions. [2024-11-06 19:54:23,260 INFO L78 Accepts]: Start accepts. Automaton has 3208 states and 3423 transitions. Word has length 701 [2024-11-06 19:54:23,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:23,260 INFO L471 AbstractCegarLoop]: Abstraction has 3208 states and 3423 transitions. [2024-11-06 19:54:23,261 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 19:54:23,261 INFO L276 IsEmpty]: Start isEmpty. Operand 3208 states and 3423 transitions. [2024-11-06 19:54:23,265 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 714 [2024-11-06 19:54:23,265 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:23,265 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 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] [2024-11-06 19:54:23,283 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2024-11-06 19:54:23,466 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,SelfDestructingSolverStorable12 [2024-11-06 19:54:23,466 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:23,467 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:23,467 INFO L85 PathProgramCache]: Analyzing trace with hash 1529784803, now seen corresponding path program 1 times [2024-11-06 19:54:23,467 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:23,467 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1824024130] [2024-11-06 19:54:23,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:23,467 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:23,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:23,792 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 1251 proven. 110 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-11-06 19:54:23,793 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:23,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1824024130] [2024-11-06 19:54:23,793 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1824024130] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:23,793 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [702780046] [2024-11-06 19:54:23,793 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:23,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:23,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:23,795 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 19:54:23,796 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 19:54:23,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:23,955 INFO L255 TraceCheckSpWp]: Trace formula consists of 893 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:54:23,960 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:24,014 INFO L134 CoverageAnalysis]: Checked inductivity of 1706 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 1521 trivial. 0 not checked. [2024-11-06 19:54:24,014 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:24,014 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [702780046] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:24,014 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:24,014 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-06 19:54:24,015 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [996147748] [2024-11-06 19:54:24,015 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:24,015 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:24,015 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:24,015 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:24,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:54:24,015 INFO L87 Difference]: Start difference. First operand 3208 states and 3423 transitions. Second operand has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 19:54:24,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:24,393 INFO L93 Difference]: Finished difference Result 6770 states and 7260 transitions. [2024-11-06 19:54:24,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:24,394 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 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 713 [2024-11-06 19:54:24,395 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:24,406 INFO L225 Difference]: With dead ends: 6770 [2024-11-06 19:54:24,408 INFO L226 Difference]: Without dead ends: 3920 [2024-11-06 19:54:24,411 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 716 GetRequests, 713 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:54:24,412 INFO L432 NwaCegarLoop]: 226 mSDtfsCounter, 148 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 412 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 449 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 412 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:24,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 231 Invalid, 449 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 412 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 19:54:24,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3920 states. [2024-11-06 19:54:24,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3920 to 3564. [2024-11-06 19:54:24,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3564 states, 3563 states have (on average 1.0634296940780241) internal successors, (3789), 3563 states have internal predecessors, (3789), 0 states have call successors, (0), 0 states 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 19:54:24,447 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3564 states to 3564 states and 3789 transitions. [2024-11-06 19:54:24,448 INFO L78 Accepts]: Start accepts. Automaton has 3564 states and 3789 transitions. Word has length 713 [2024-11-06 19:54:24,448 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:24,448 INFO L471 AbstractCegarLoop]: Abstraction has 3564 states and 3789 transitions. [2024-11-06 19:54:24,449 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 64.66666666666667) internal successors, (194), 3 states have internal predecessors, (194), 0 states have call successors, (0), 0 states 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 19:54:24,449 INFO L276 IsEmpty]: Start isEmpty. Operand 3564 states and 3789 transitions. [2024-11-06 19:54:24,454 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 770 [2024-11-06 19:54:24,454 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:24,455 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:24,469 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 19:54:24,655 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,SelfDestructingSolverStorable13 [2024-11-06 19:54:24,656 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:24,656 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:24,656 INFO L85 PathProgramCache]: Analyzing trace with hash -186272149, now seen corresponding path program 1 times [2024-11-06 19:54:24,657 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:24,657 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1165098351] [2024-11-06 19:54:24,657 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:24,657 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:24,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:24,952 INFO L134 CoverageAnalysis]: Checked inductivity of 1709 backedges. 1209 proven. 155 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-11-06 19:54:24,952 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:24,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1165098351] [2024-11-06 19:54:24,953 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1165098351] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:24,953 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682965463] [2024-11-06 19:54:24,953 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:24,953 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:24,953 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:24,955 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 19:54:24,956 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 19:54:25,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:25,131 INFO L255 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:54:25,137 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:25,180 INFO L134 CoverageAnalysis]: Checked inductivity of 1709 backedges. 185 proven. 0 refuted. 0 times theorem prover too weak. 1524 trivial. 0 not checked. [2024-11-06 19:54:25,180 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:25,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682965463] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:25,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:25,181 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-06 19:54:25,181 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894947708] [2024-11-06 19:54:25,181 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:25,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:25,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:25,182 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:25,182 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:54:25,182 INFO L87 Difference]: Start difference. First operand 3564 states and 3789 transitions. Second operand has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states 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 19:54:25,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:25,536 INFO L93 Difference]: Finished difference Result 7838 states and 8371 transitions. [2024-11-06 19:54:25,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:25,537 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 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 769 [2024-11-06 19:54:25,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:25,544 INFO L225 Difference]: With dead ends: 7838 [2024-11-06 19:54:25,545 INFO L226 Difference]: Without dead ends: 4454 [2024-11-06 19:54:25,548 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 772 GetRequests, 769 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:54:25,548 INFO L432 NwaCegarLoop]: 224 mSDtfsCounter, 148 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 415 mSolverCounterSat, 38 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 148 SdHoareTripleChecker+Valid, 229 SdHoareTripleChecker+Invalid, 453 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 38 IncrementalHoareTripleChecker+Valid, 415 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:25,549 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [148 Valid, 229 Invalid, 453 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [38 Valid, 415 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 19:54:25,552 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4454 states. [2024-11-06 19:54:25,592 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4454 to 4098. [2024-11-06 19:54:25,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4098 states, 4097 states have (on average 1.0571149621674396) internal successors, (4331), 4097 states have internal predecessors, (4331), 0 states have call successors, (0), 0 states 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 19:54:25,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4098 states to 4098 states and 4331 transitions. [2024-11-06 19:54:25,600 INFO L78 Accepts]: Start accepts. Automaton has 4098 states and 4331 transitions. Word has length 769 [2024-11-06 19:54:25,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:25,600 INFO L471 AbstractCegarLoop]: Abstraction has 4098 states and 4331 transitions. [2024-11-06 19:54:25,600 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 71.33333333333333) internal successors, (214), 3 states have internal predecessors, (214), 0 states have call successors, (0), 0 states 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 19:54:25,600 INFO L276 IsEmpty]: Start isEmpty. Operand 4098 states and 4331 transitions. [2024-11-06 19:54:25,605 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 789 [2024-11-06 19:54:25,605 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:25,606 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, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:25,619 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 19:54:25,806 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14,8 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:25,806 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:25,807 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:25,807 INFO L85 PathProgramCache]: Analyzing trace with hash 626886724, now seen corresponding path program 1 times [2024-11-06 19:54:25,807 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:25,807 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1809455410] [2024-11-06 19:54:25,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:25,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:25,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:26,122 INFO L134 CoverageAnalysis]: Checked inductivity of 1804 backedges. 1304 proven. 155 refuted. 0 times theorem prover too weak. 345 trivial. 0 not checked. [2024-11-06 19:54:26,122 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:26,122 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1809455410] [2024-11-06 19:54:26,122 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1809455410] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:26,123 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [976277803] [2024-11-06 19:54:26,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:26,123 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:26,123 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:26,125 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 19:54:26,126 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 19:54:26,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:26,342 INFO L255 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-06 19:54:26,347 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:26,448 INFO L134 CoverageAnalysis]: Checked inductivity of 1804 backedges. 689 proven. 0 refuted. 0 times theorem prover too weak. 1115 trivial. 0 not checked. [2024-11-06 19:54:26,449 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:26,449 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [976277803] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:26,449 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:26,449 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-06 19:54:26,449 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [631809523] [2024-11-06 19:54:26,449 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:26,449 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:26,449 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:26,450 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:26,450 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:54:26,450 INFO L87 Difference]: Start difference. First operand 4098 states and 4331 transitions. Second operand has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states 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 19:54:26,794 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:26,795 INFO L93 Difference]: Finished difference Result 8550 states and 9077 transitions. [2024-11-06 19:54:26,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:26,795 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 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 788 [2024-11-06 19:54:26,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:26,803 INFO L225 Difference]: With dead ends: 8550 [2024-11-06 19:54:26,803 INFO L226 Difference]: Without dead ends: 4810 [2024-11-06 19:54:26,807 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 791 GetRequests, 788 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-06 19:54:26,807 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 79 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 408 mSolverCounterSat, 49 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 79 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 457 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 49 IncrementalHoareTripleChecker+Valid, 408 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:26,807 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [79 Valid, 28 Invalid, 457 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [49 Valid, 408 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 19:54:26,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4810 states. [2024-11-06 19:54:26,838 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4810 to 4454. [2024-11-06 19:54:26,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4454 states, 4453 states have (on average 1.0559173590837638) internal successors, (4702), 4453 states have internal predecessors, (4702), 0 states have call successors, (0), 0 states 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 19:54:26,845 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4454 states to 4454 states and 4702 transitions. [2024-11-06 19:54:26,845 INFO L78 Accepts]: Start accepts. Automaton has 4454 states and 4702 transitions. Word has length 788 [2024-11-06 19:54:26,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:26,845 INFO L471 AbstractCegarLoop]: Abstraction has 4454 states and 4702 transitions. [2024-11-06 19:54:26,846 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 104.66666666666667) internal successors, (314), 3 states have internal predecessors, (314), 0 states have call successors, (0), 0 states 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 19:54:26,846 INFO L276 IsEmpty]: Start isEmpty. Operand 4454 states and 4702 transitions. [2024-11-06 19:54:26,851 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 838 [2024-11-06 19:54:26,851 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:26,852 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 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] [2024-11-06 19:54:26,865 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 19:54:27,052 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,SelfDestructingSolverStorable15 [2024-11-06 19:54:27,052 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:27,052 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:27,053 INFO L85 PathProgramCache]: Analyzing trace with hash 366067506, now seen corresponding path program 1 times [2024-11-06 19:54:27,053 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:27,053 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910426762] [2024-11-06 19:54:27,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:27,053 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:27,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:27,347 INFO L134 CoverageAnalysis]: Checked inductivity of 2455 backedges. 1862 proven. 110 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-06 19:54:27,347 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:27,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910426762] [2024-11-06 19:54:27,347 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910426762] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:27,347 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1033680134] [2024-11-06 19:54:27,347 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:27,347 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:27,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:27,351 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 19:54:27,353 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 19:54:27,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:27,551 INFO L255 TraceCheckSpWp]: Trace formula consists of 1041 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 19:54:27,557 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:27,803 INFO L134 CoverageAnalysis]: Checked inductivity of 2455 backedges. 1862 proven. 110 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-06 19:54:27,803 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-06 19:54:28,036 INFO L134 CoverageAnalysis]: Checked inductivity of 2455 backedges. 1862 proven. 110 refuted. 0 times theorem prover too weak. 483 trivial. 0 not checked. [2024-11-06 19:54:28,037 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1033680134] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-06 19:54:28,037 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-06 19:54:28,037 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4, 4] total 6 [2024-11-06 19:54:28,037 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1836083999] [2024-11-06 19:54:28,038 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-06 19:54:28,039 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-06 19:54:28,039 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:28,039 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-06 19:54:28,039 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:28,040 INFO L87 Difference]: Start difference. First operand 4454 states and 4702 transitions. Second operand has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states 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 19:54:28,656 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:28,656 INFO L93 Difference]: Finished difference Result 9974 states and 10543 transitions. [2024-11-06 19:54:28,657 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-06 19:54:28,657 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 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 837 [2024-11-06 19:54:28,657 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:28,665 INFO L225 Difference]: With dead ends: 9974 [2024-11-06 19:54:28,665 INFO L226 Difference]: Without dead ends: 5878 [2024-11-06 19:54:28,669 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1676 GetRequests, 1672 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:28,669 INFO L432 NwaCegarLoop]: 43 mSDtfsCounter, 294 mSDsluCounter, 9 mSDsCounter, 0 mSdLazyCounter, 780 mSolverCounterSat, 82 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 862 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 82 IncrementalHoareTripleChecker+Valid, 780 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:28,669 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 52 Invalid, 862 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [82 Valid, 780 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-06 19:54:28,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5878 states. [2024-11-06 19:54:28,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5878 to 5166. [2024-11-06 19:54:28,710 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.0526621490803485) internal successors, (5437), 5165 states have internal predecessors, (5437), 0 states have call successors, (0), 0 states 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 19:54:28,715 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5437 transitions. [2024-11-06 19:54:28,715 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5437 transitions. Word has length 837 [2024-11-06 19:54:28,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:28,715 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5437 transitions. [2024-11-06 19:54:28,716 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 126.5) internal successors, (759), 6 states have internal predecessors, (759), 0 states have call successors, (0), 0 states 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 19:54:28,716 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5437 transitions. [2024-11-06 19:54:28,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 886 [2024-11-06 19:54:28,722 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:28,722 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:28,735 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-06 19:54:28,922 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16,10 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:28,922 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:28,923 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:28,923 INFO L85 PathProgramCache]: Analyzing trace with hash -323674182, now seen corresponding path program 1 times [2024-11-06 19:54:28,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:28,923 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [273303531] [2024-11-06 19:54:28,923 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:28,923 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:29,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:29,402 INFO L134 CoverageAnalysis]: Checked inductivity of 2503 backedges. 1697 proven. 0 refuted. 0 times theorem prover too weak. 806 trivial. 0 not checked. [2024-11-06 19:54:29,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:29,403 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [273303531] [2024-11-06 19:54:29,403 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [273303531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:29,403 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:29,403 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:29,403 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1161324112] [2024-11-06 19:54:29,403 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:29,404 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:29,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:29,404 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:29,404 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:29,405 INFO L87 Difference]: Start difference. First operand 5166 states and 5437 transitions. Second operand has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states 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 19:54:29,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:29,732 INFO L93 Difference]: Finished difference Result 9796 states and 10334 transitions. [2024-11-06 19:54:29,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:29,732 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 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 885 [2024-11-06 19:54:29,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:29,743 INFO L225 Difference]: With dead ends: 9796 [2024-11-06 19:54:29,743 INFO L226 Difference]: Without dead ends: 4988 [2024-11-06 19:54:29,747 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 19:54:29,747 INFO L432 NwaCegarLoop]: 213 mSDtfsCounter, 21 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 410 mSolverCounterSat, 23 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 21 SdHoareTripleChecker+Valid, 218 SdHoareTripleChecker+Invalid, 433 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 23 IncrementalHoareTripleChecker+Valid, 410 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:29,747 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [21 Valid, 218 Invalid, 433 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [23 Valid, 410 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 19:54:29,750 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2024-11-06 19:54:29,782 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4988. [2024-11-06 19:54:29,786 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.044716262281933) internal successors, (5210), 4987 states have internal predecessors, (5210), 0 states have call successors, (0), 0 states 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 19:54:29,790 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5210 transitions. [2024-11-06 19:54:29,791 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5210 transitions. Word has length 885 [2024-11-06 19:54:29,791 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:29,791 INFO L471 AbstractCegarLoop]: Abstraction has 4988 states and 5210 transitions. [2024-11-06 19:54:29,791 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 143.0) internal successors, (429), 3 states have internal predecessors, (429), 0 states have call successors, (0), 0 states 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 19:54:29,791 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5210 transitions. [2024-11-06 19:54:29,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 904 [2024-11-06 19:54:29,797 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:29,798 INFO L215 NwaCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 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, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 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 19:54:29,798 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-11-06 19:54:29,798 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:29,798 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:29,798 INFO L85 PathProgramCache]: Analyzing trace with hash -1548717555, now seen corresponding path program 1 times [2024-11-06 19:54:29,798 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:29,798 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1111621671] [2024-11-06 19:54:29,799 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:29,799 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:29,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:30,322 INFO L134 CoverageAnalysis]: Checked inductivity of 2506 backedges. 1684 proven. 93 refuted. 0 times theorem prover too weak. 729 trivial. 0 not checked. [2024-11-06 19:54:30,322 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:30,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1111621671] [2024-11-06 19:54:30,322 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1111621671] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:30,322 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1951715741] [2024-11-06 19:54:30,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:30,323 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:30,323 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:30,324 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 19:54:30,326 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 19:54:30,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:30,502 INFO L255 TraceCheckSpWp]: Trace formula consists of 1101 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 19:54:30,507 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:31,116 INFO L134 CoverageAnalysis]: Checked inductivity of 2506 backedges. 823 proven. 0 refuted. 0 times theorem prover too weak. 1683 trivial. 0 not checked. [2024-11-06 19:54:31,116 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:31,116 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1951715741] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:31,116 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:31,116 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [4] total 5 [2024-11-06 19:54:31,116 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [248638368] [2024-11-06 19:54:31,117 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:31,117 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:31,117 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:31,121 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:31,121 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:31,122 INFO L87 Difference]: Start difference. First operand 4988 states and 5210 transitions. Second operand has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 0 states have call successors, (0), 0 states 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 19:54:31,385 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:31,385 INFO L93 Difference]: Finished difference Result 10152 states and 10615 transitions. [2024-11-06 19:54:31,386 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:31,386 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 0 states have call successors, (0), 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 903 [2024-11-06 19:54:31,386 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:31,398 INFO L225 Difference]: With dead ends: 10152 [2024-11-06 19:54:31,398 INFO L226 Difference]: Without dead ends: 5522 [2024-11-06 19:54:31,403 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 906 GetRequests, 902 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:31,403 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 10 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 404 mSolverCounterSat, 14 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 10 SdHoareTripleChecker+Valid, 38 SdHoareTripleChecker+Invalid, 418 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 14 IncrementalHoareTripleChecker+Valid, 404 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:31,403 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [10 Valid, 38 Invalid, 418 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [14 Valid, 404 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-06 19:54:31,407 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5522 states. [2024-11-06 19:54:31,440 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5522 to 5166. [2024-11-06 19:54:31,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5166 states, 5165 states have (on average 1.043756050338819) internal successors, (5391), 5165 states have internal predecessors, (5391), 0 states have call successors, (0), 0 states 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 19:54:31,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5166 states to 5166 states and 5391 transitions. [2024-11-06 19:54:31,451 INFO L78 Accepts]: Start accepts. Automaton has 5166 states and 5391 transitions. Word has length 903 [2024-11-06 19:54:31,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:31,452 INFO L471 AbstractCegarLoop]: Abstraction has 5166 states and 5391 transitions. [2024-11-06 19:54:31,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 96.33333333333333) internal successors, (289), 2 states have internal predecessors, (289), 0 states have call successors, (0), 0 states 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 19:54:31,452 INFO L276 IsEmpty]: Start isEmpty. Operand 5166 states and 5391 transitions. [2024-11-06 19:54:31,460 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 928 [2024-11-06 19:54:31,460 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:31,461 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 5, 4, 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] [2024-11-06 19:54:31,480 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 19:54:31,661 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18,11 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:31,662 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:31,662 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:31,663 INFO L85 PathProgramCache]: Analyzing trace with hash 1884802822, now seen corresponding path program 1 times [2024-11-06 19:54:31,663 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:31,663 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1134500586] [2024-11-06 19:54:31,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:31,663 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:31,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:32,149 INFO L134 CoverageAnalysis]: Checked inductivity of 2989 backedges. 1920 proven. 93 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2024-11-06 19:54:32,149 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:32,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1134500586] [2024-11-06 19:54:32,149 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1134500586] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-06 19:54:32,149 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1225935976] [2024-11-06 19:54:32,150 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:32,150 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:32,150 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-06 19:54:32,152 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 19:54:32,153 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 19:54:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:32,332 INFO L255 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-06 19:54:32,337 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-06 19:54:32,718 INFO L134 CoverageAnalysis]: Checked inductivity of 2989 backedges. 2013 proven. 0 refuted. 0 times theorem prover too weak. 976 trivial. 0 not checked. [2024-11-06 19:54:32,718 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-06 19:54:32,719 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1225935976] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:32,719 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-06 19:54:32,719 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 6 [2024-11-06 19:54:32,719 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1444077811] [2024-11-06 19:54:32,719 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:32,720 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:32,720 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:32,720 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:32,720 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:32,721 INFO L87 Difference]: Start difference. First operand 5166 states and 5391 transitions. Second operand has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:54:33,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:33,019 INFO L93 Difference]: Finished difference Result 10152 states and 10604 transitions. [2024-11-06 19:54:33,019 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:33,020 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 927 [2024-11-06 19:54:33,020 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:33,026 INFO L225 Difference]: With dead ends: 10152 [2024-11-06 19:54:33,026 INFO L226 Difference]: Without dead ends: 5344 [2024-11-06 19:54:33,031 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 930 GetRequests, 926 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2024-11-06 19:54:33,031 INFO L432 NwaCegarLoop]: 49 mSDtfsCounter, 8 mSDsluCounter, 3 mSDsCounter, 0 mSdLazyCounter, 402 mSolverCounterSat, 8 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 8 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 410 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 8 IncrementalHoareTripleChecker+Valid, 402 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:33,031 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [8 Valid, 52 Invalid, 410 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [8 Valid, 402 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 19:54:33,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5344 states. [2024-11-06 19:54:33,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5344 to 4988. [2024-11-06 19:54:33,107 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.044716262281933) internal successors, (5210), 4987 states have internal predecessors, (5210), 0 states have call successors, (0), 0 states 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 19:54:33,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5210 transitions. [2024-11-06 19:54:33,113 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5210 transitions. Word has length 927 [2024-11-06 19:54:33,113 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:33,113 INFO L471 AbstractCegarLoop]: Abstraction has 4988 states and 5210 transitions. [2024-11-06 19:54:33,113 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 135.0) internal successors, (405), 3 states have internal predecessors, (405), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:54:33,113 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5210 transitions. [2024-11-06 19:54:33,120 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1005 [2024-11-06 19:54:33,120 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:33,121 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 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, 5, 4, 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] [2024-11-06 19:54:33,136 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 19:54:33,321 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19,12 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-06 19:54:33,321 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:33,322 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:33,322 INFO L85 PathProgramCache]: Analyzing trace with hash -1105502977, now seen corresponding path program 1 times [2024-11-06 19:54:33,322 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:33,322 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [848952467] [2024-11-06 19:54:33,322 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:33,322 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:33,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:33,959 INFO L134 CoverageAnalysis]: Checked inductivity of 3630 backedges. 1660 proven. 0 refuted. 0 times theorem prover too weak. 1970 trivial. 0 not checked. [2024-11-06 19:54:33,959 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:33,959 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [848952467] [2024-11-06 19:54:33,959 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [848952467] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:33,959 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:33,960 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-06 19:54:33,960 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1190583646] [2024-11-06 19:54:33,960 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:33,960 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-06 19:54:33,960 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:33,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-06 19:54:33,962 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:54:33,962 INFO L87 Difference]: Start difference. First operand 4988 states and 5210 transitions. Second operand has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states 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 19:54:34,371 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:34,371 INFO L93 Difference]: Finished difference Result 9846 states and 10292 transitions. [2024-11-06 19:54:34,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-06 19:54:34,371 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 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 1004 [2024-11-06 19:54:34,372 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:34,376 INFO L225 Difference]: With dead ends: 9846 [2024-11-06 19:54:34,376 INFO L226 Difference]: Without dead ends: 5166 [2024-11-06 19:54:34,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 6 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=21, Unknown=0, NotChecked=0, Total=42 [2024-11-06 19:54:34,380 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 36 mSDsluCounter, 19 mSDsCounter, 0 mSdLazyCounter, 946 mSolverCounterSat, 12 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 36 SdHoareTripleChecker+Valid, 28 SdHoareTripleChecker+Invalid, 958 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 12 IncrementalHoareTripleChecker+Valid, 946 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:34,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [36 Valid, 28 Invalid, 958 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [12 Valid, 946 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-11-06 19:54:34,382 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5166 states. [2024-11-06 19:54:34,412 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5166 to 4988. [2024-11-06 19:54:34,416 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4988 states, 4987 states have (on average 1.0368959294164828) internal successors, (5171), 4987 states have internal predecessors, (5171), 0 states have call successors, (0), 0 states 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 19:54:34,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4988 states to 4988 states and 5171 transitions. [2024-11-06 19:54:34,420 INFO L78 Accepts]: Start accepts. Automaton has 4988 states and 5171 transitions. Word has length 1004 [2024-11-06 19:54:34,421 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:34,421 INFO L471 AbstractCegarLoop]: Abstraction has 4988 states and 5171 transitions. [2024-11-06 19:54:34,421 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 48.857142857142854) internal successors, (342), 6 states have internal predecessors, (342), 0 states have call successors, (0), 0 states 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 19:54:34,421 INFO L276 IsEmpty]: Start isEmpty. Operand 4988 states and 5171 transitions. [2024-11-06 19:54:34,427 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1026 [2024-11-06 19:54:34,427 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:34,428 INFO L215 NwaCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 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, 5, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:34,428 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-11-06 19:54:34,428 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:34,428 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:34,429 INFO L85 PathProgramCache]: Analyzing trace with hash -1372255578, now seen corresponding path program 1 times [2024-11-06 19:54:34,429 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:34,429 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1501501643] [2024-11-06 19:54:34,429 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:34,429 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:34,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:34,922 INFO L134 CoverageAnalysis]: Checked inductivity of 3009 backedges. 247 proven. 0 refuted. 0 times theorem prover too weak. 2762 trivial. 0 not checked. [2024-11-06 19:54:34,922 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:34,922 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1501501643] [2024-11-06 19:54:34,922 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1501501643] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:34,922 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:34,923 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:34,923 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183283166] [2024-11-06 19:54:34,923 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:34,923 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-06 19:54:34,923 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:34,924 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-06 19:54:34,924 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2024-11-06 19:54:34,924 INFO L87 Difference]: Start difference. First operand 4988 states and 5171 transitions. Second operand has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states 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 19:54:35,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:35,261 INFO L93 Difference]: Finished difference Result 9638 states and 9998 transitions. [2024-11-06 19:54:35,264 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-06 19:54:35,264 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 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 1025 [2024-11-06 19:54:35,265 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:35,269 INFO L225 Difference]: With dead ends: 9638 [2024-11-06 19:54:35,269 INFO L226 Difference]: Without dead ends: 4988 [2024-11-06 19:54:35,272 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 19:54:35,273 INFO L432 NwaCegarLoop]: 9 mSDtfsCounter, 32 mSDsluCounter, 8 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 32 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 625 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:35,274 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [32 Valid, 17 Invalid, 625 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 19:54:35,276 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4988 states. [2024-11-06 19:54:35,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4988 to 4810. [2024-11-06 19:54:35,311 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 4810 states, 4809 states have (on average 1.035350384695363) internal successors, (4979), 4809 states have internal predecessors, (4979), 0 states have call successors, (0), 0 states 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 19:54:35,315 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4810 states to 4810 states and 4979 transitions. [2024-11-06 19:54:35,316 INFO L78 Accepts]: Start accepts. Automaton has 4810 states and 4979 transitions. Word has length 1025 [2024-11-06 19:54:35,316 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:35,316 INFO L471 AbstractCegarLoop]: Abstraction has 4810 states and 4979 transitions. [2024-11-06 19:54:35,316 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 54.0) internal successors, (216), 3 states have internal predecessors, (216), 0 states have call successors, (0), 0 states 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 19:54:35,316 INFO L276 IsEmpty]: Start isEmpty. Operand 4810 states and 4979 transitions. [2024-11-06 19:54:35,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1037 [2024-11-06 19:54:35,324 INFO L207 NwaCegarLoop]: Found error trace [2024-11-06 19:54:35,324 INFO L215 NwaCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 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, 5, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-06 19:54:35,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-11-06 19:54:35,325 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-06 19:54:35,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-06 19:54:35,325 INFO L85 PathProgramCache]: Analyzing trace with hash 1952515600, now seen corresponding path program 1 times [2024-11-06 19:54:35,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-06 19:54:35,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1555630591] [2024-11-06 19:54:35,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-06 19:54:35,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-06 19:54:35,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-06 19:54:35,637 INFO L134 CoverageAnalysis]: Checked inductivity of 3502 backedges. 1033 proven. 0 refuted. 0 times theorem prover too weak. 2469 trivial. 0 not checked. [2024-11-06 19:54:35,637 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-06 19:54:35,637 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1555630591] [2024-11-06 19:54:35,637 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1555630591] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-06 19:54:35,637 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-06 19:54:35,637 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-06 19:54:35,637 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1551412980] [2024-11-06 19:54:35,637 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-06 19:54:35,638 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-06 19:54:35,638 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-06 19:54:35,638 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-06 19:54:35,638 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-06 19:54:35,638 INFO L87 Difference]: Start difference. First operand 4810 states and 4979 transitions. Second operand has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states 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 19:54:36,001 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-06 19:54:36,001 INFO L93 Difference]: Finished difference Result 9616 states and 9965 transitions. [2024-11-06 19:54:36,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-06 19:54:36,002 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 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 1036 [2024-11-06 19:54:36,002 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-06 19:54:36,002 INFO L225 Difference]: With dead ends: 9616 [2024-11-06 19:54:36,002 INFO L226 Difference]: Without dead ends: 0 [2024-11-06 19:54:36,006 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 19:54:36,007 INFO L432 NwaCegarLoop]: 209 mSDtfsCounter, 76 mSDsluCounter, 4 mSDsCounter, 0 mSdLazyCounter, 395 mSolverCounterSat, 28 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 76 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 423 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 28 IncrementalHoareTripleChecker+Valid, 395 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-06 19:54:36,007 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [76 Valid, 213 Invalid, 423 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [28 Valid, 395 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-06 19:54:36,007 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2024-11-06 19:54:36,007 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2024-11-06 19:54:36,007 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2024-11-06 19:54:36,008 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2024-11-06 19:54:36,008 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 1036 [2024-11-06 19:54:36,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-06 19:54:36,008 INFO L471 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2024-11-06 19:54:36,008 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 107.66666666666667) internal successors, (323), 3 states have internal predecessors, (323), 0 states have call successors, (0), 0 states 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 19:54:36,008 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2024-11-06 19:54:36,008 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2024-11-06 19:54:36,011 INFO L782 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2024-11-06 19:54:36,011 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2024-11-06 19:54:36,013 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] [2024-11-06 19:54:36,015 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2024-11-06 19:54:38,483 INFO L170 ceAbstractionStarter]: Computing trace abstraction results [2024-11-06 19:54:38,498 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 06.11 07:54:38 BoogieIcfgContainer [2024-11-06 19:54:38,498 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2024-11-06 19:54:38,499 INFO L112 PluginConnector]: ------------------------Witness Printer---------------------------- [2024-11-06 19:54:38,499 INFO L270 PluginConnector]: Initializing Witness Printer... [2024-11-06 19:54:38,499 INFO L274 PluginConnector]: Witness Printer initialized [2024-11-06 19:54:38,500 INFO L184 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 06.11 07:54:10" (3/4) ... [2024-11-06 19:54:38,502 INFO L142 WitnessPrinter]: Generating witness for correct program [2024-11-06 19:54:38,523 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 11 nodes and edges [2024-11-06 19:54:38,524 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 4 nodes and edges [2024-11-06 19:54:38,525 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2024-11-06 19:54:38,525 INFO L925 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2024-11-06 19:54:38,635 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.graphml [2024-11-06 19:54:38,635 INFO L149 WitnessManager]: Wrote witness to /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/witness.yml [2024-11-06 19:54:38,635 INFO L131 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2024-11-06 19:54:38,636 INFO L158 Benchmark]: Toolchain (without parser) took 29939.68ms. Allocated memory was 109.1MB in the beginning and 939.5MB in the end (delta: 830.5MB). Free memory was 83.2MB in the beginning and 658.8MB in the end (delta: -575.6MB). Peak memory consumption was 251.5MB. Max. memory is 16.1GB. [2024-11-06 19:54:38,636 INFO L158 Benchmark]: CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. [2024-11-06 19:54:38,637 INFO L158 Benchmark]: CACSL2BoogieTranslator took 372.10ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 51.5MB in the end (delta: 31.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. [2024-11-06 19:54:38,637 INFO L158 Benchmark]: Boogie Procedure Inliner took 88.89ms. Allocated memory is still 109.1MB. Free memory was 51.5MB in the beginning and 42.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 19:54:38,637 INFO L158 Benchmark]: Boogie Preprocessor took 91.16ms. Allocated memory is still 109.1MB. Free memory was 42.1MB in the beginning and 72.2MB in the end (delta: -30.2MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. [2024-11-06 19:54:38,637 INFO L158 Benchmark]: RCFGBuilder took 1056.92ms. Allocated memory is still 109.1MB. Free memory was 72.2MB in the beginning and 40.0MB in the end (delta: 32.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. [2024-11-06 19:54:38,637 INFO L158 Benchmark]: TraceAbstraction took 28189.36ms. Allocated memory was 109.1MB in the beginning and 939.5MB in the end (delta: 830.5MB). Free memory was 40.0MB in the beginning and 671.1MB in the end (delta: -631.1MB). Peak memory consumption was 534.6MB. Max. memory is 16.1GB. [2024-11-06 19:54:38,638 INFO L158 Benchmark]: Witness Printer took 136.27ms. Allocated memory is still 939.5MB. Free memory was 671.1MB in the beginning and 658.8MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. [2024-11-06 19:54:38,638 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35ms. Allocated memory is still 83.9MB. Free memory is still 48.5MB. There was no memory consumed. Max. memory is 16.1GB. * CACSL2BoogieTranslator took 372.10ms. Allocated memory is still 109.1MB. Free memory was 83.1MB in the beginning and 51.5MB in the end (delta: 31.6MB). Peak memory consumption was 25.2MB. Max. memory is 16.1GB. * Boogie Procedure Inliner took 88.89ms. Allocated memory is still 109.1MB. Free memory was 51.5MB in the beginning and 42.1MB in the end (delta: 9.4MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Boogie Preprocessor took 91.16ms. Allocated memory is still 109.1MB. Free memory was 42.1MB in the beginning and 72.2MB in the end (delta: -30.2MB). Peak memory consumption was 16.0MB. Max. memory is 16.1GB. * RCFGBuilder took 1056.92ms. Allocated memory is still 109.1MB. Free memory was 72.2MB in the beginning and 40.0MB in the end (delta: 32.2MB). Peak memory consumption was 50.3MB. Max. memory is 16.1GB. * TraceAbstraction took 28189.36ms. Allocated memory was 109.1MB in the beginning and 939.5MB in the end (delta: 830.5MB). Free memory was 40.0MB in the beginning and 671.1MB in the end (delta: -631.1MB). Peak memory consumption was 534.6MB. Max. memory is 16.1GB. * Witness Printer took 136.27ms. Allocated memory is still 939.5MB. Free memory was 671.1MB in the beginning and 658.8MB in the end (delta: 12.3MB). Peak memory consumption was 8.4MB. Max. memory is 16.1GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 113]: a call to reach_error is unreachable For all program executions holds that a call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data CFG has 1 procedures, 245 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 25.7s, OverallIterations: 23, TraceHistogramMax: 10, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.1s, AutomataDifference: 10.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 2702 SdHoareTripleChecker+Valid, 9.6s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 2702 mSDsluCounter, 2701 SdHoareTripleChecker+Invalid, 7.8s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 138 mSDsCounter, 1105 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 12042 IncrementalHoareTripleChecker+Invalid, 13147 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 1105 mSolverCounterUnsat, 2563 mSDtfsCounter, 12042 mSolverCounterSat, 0.1s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 7835 GetRequests, 7776 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=5166occurred in iteration=17, InterpolantAutomatonStates: 79, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 23 MinimizatonAttempts, 4984 StatesRemovedByMinimization, 16 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 1.5s SatisfiabilityAnalysisTime, 8.6s InterpolantComputationTime, 20149 NumberOfCodeBlocks, 20149 NumberOfCodeBlocksAsserted, 34 NumberOfCheckSat, 20951 ConstructedInterpolants, 0 QuantifiedInterpolants, 50012 SizeOfPredicates, 0 NumberOfNonLiveVariables, 8727 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 35 InterpolantComputations, 22 PerfectInterpolantSequences, 50127/51494 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 890]: Loop Invariant Derived loop invariant: ((((((((((((a21 == 8) && (a24 == 1)) || (((a12 <= 11) && (a24 == 1)) && (10 <= a21))) || ((((a24 == 1) && (a12 <= 76)) && (0 <= ((long long) a12 + 42))) && (a15 == 8))) || ((a24 == 1) && (a15 <= 6))) || ((((long long) a12 + 43) <= 0) && (a15 <= 6))) || (((((a12 <= 11) && (a24 == 1)) && (a15 <= 8)) && (a21 <= 6)) && (0 <= ((long long) a12 + 42)))) || ((a24 == 1) && (81 <= a12))) || ((((a24 == 1) && (12 <= a12)) && (a21 == 9)) && (7 == a15))) || (((a24 == 1) && (7 == a21)) && (a15 <= 8))) || (((a24 == 1) && (a15 <= 8)) && (10 <= a21))) || ((((a24 == 1) && (a15 <= 8)) && (a21 <= 6)) && (((long long) 49 + a12) <= 0))) RESULT: Ultimate proved your program to be correct! [2024-11-06 19:54:38,665 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Ended with exit code 0 Received shutdown request... --- End real Ultimate output --- Execution finished normally Writing output log to file Ultimate.log Result: TRUE