./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-0.i --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/hardness-nfm22/hardness_operatoramount_amount250_file-0.i', '-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', 'bc8ba5687f86ca6bc535ef8887bd15483610a3c920778b0e5f157ae799e621ff'] 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/hardness-nfm22/hardness_operatoramount_amount250_file-0.i -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 bc8ba5687f86ca6bc535ef8887bd15483610a3c920778b0e5f157ae799e621ff --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 09:16:49,968 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 09:16:50,046 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 09:16:50,051 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 09:16:50,051 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 09:16:50,078 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 09:16:50,079 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 09:16:50,079 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 09:16:50,079 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 09:16:50,080 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 09:16:50,080 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 09:16:50,080 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 09:16:50,080 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 09:16:50,080 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 09:16:50,080 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 09:16:50,080 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 09:16:50,080 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 09:16:50,080 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 09:16:50,081 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 09:16:50,081 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 09:16:50,081 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 09:16:50,081 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 09:16:50,081 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 09:16:50,081 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 09:16:50,081 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 09:16:50,083 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 09:16:50,083 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 09:16:50,084 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 09:16:50,084 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 09:16:50,084 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 09:16:50,084 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 09:16:50,084 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 09:16:50,084 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 09:16:50,085 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 09:16:50,085 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 09:16:50,085 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 09:16:50,085 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 09:16:50,085 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 09:16:50,086 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 09:16:50,086 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 09:16:50,086 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 09:16:50,086 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 09:16:50,086 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 -> bc8ba5687f86ca6bc535ef8887bd15483610a3c920778b0e5f157ae799e621ff [2024-11-07 09:16:50,363 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 09:16:50,370 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 09:16:50,372 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 09:16:50,373 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 09:16:50,373 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 09:16:50,375 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-0.i [2024-11-07 09:16:51,668 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 09:16:51,966 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 09:16:51,968 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_operatoramount_amount250_file-0.i [2024-11-07 09:16:51,982 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d1a650fc2/d673c54737354171948eb120748b29c6/FLAG6a418c2de [2024-11-07 09:16:52,002 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/d1a650fc2/d673c54737354171948eb120748b29c6 [2024-11-07 09:16:52,005 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 09:16:52,006 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 09:16:52,009 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 09:16:52,010 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 09:16:52,014 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 09:16:52,015 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,015 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6c4e6bfa and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52, skipping insertion in model container [2024-11-07 09:16:52,015 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,046 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 09:16:52,186 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/hardness-nfm22/hardness_operatoramount_amount250_file-0.i[915,928] [2024-11-07 09:16:52,299 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 09:16:52,311 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 09:16:52,320 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/hardness-nfm22/hardness_operatoramount_amount250_file-0.i[915,928] [2024-11-07 09:16:52,389 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 09:16:52,410 INFO L204 MainTranslator]: Completed translation [2024-11-07 09:16:52,410 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52 WrapperNode [2024-11-07 09:16:52,411 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 09:16:52,412 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 09:16:52,413 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 09:16:52,413 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 09:16:52,418 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,437 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,529 INFO L138 Inliner]: procedures = 26, calls = 45, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 347 [2024-11-07 09:16:52,529 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 09:16:52,530 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 09:16:52,530 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 09:16:52,531 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 09:16:52,538 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,538 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,557 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,638 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-11-07 09:16:52,638 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,639 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,662 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,672 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,685 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,690 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,707 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 09:16:52,709 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 09:16:52,709 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 09:16:52,709 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 09:16:52,710 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52" (1/1) ... [2024-11-07 09:16:52,714 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 09:16:52,730 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 09:16:52,744 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-07 09:16:52,746 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-07 09:16:52,766 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 09:16:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-11-07 09:16:52,767 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-11-07 09:16:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 09:16:52,767 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 09:16:52,767 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 09:16:52,891 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 09:16:52,893 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 09:16:53,700 INFO L? ?]: Removed 36 outVars from TransFormulas that were not future-live. [2024-11-07 09:16:53,700 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 09:16:53,714 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 09:16:53,715 INFO L316 CfgBuilder]: Removed 1 assume(true) statements. [2024-11-07 09:16:53,715 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:16:53 BoogieIcfgContainer [2024-11-07 09:16:53,715 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 09:16:53,718 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 09:16:53,718 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 09:16:53,722 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 09:16:53,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 09:16:52" (1/3) ... [2024-11-07 09:16:53,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277e064b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:16:53, skipping insertion in model container [2024-11-07 09:16:53,723 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 09:16:52" (2/3) ... [2024-11-07 09:16:53,723 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@277e064b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 09:16:53, skipping insertion in model container [2024-11-07 09:16:53,724 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 09:16:53" (3/3) ... [2024-11-07 09:16:53,725 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_operatoramount_amount250_file-0.i [2024-11-07 09:16:53,738 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 09:16:53,739 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-07 09:16:53,796 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 09:16:53,808 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;@5d92a7ae, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 09:16:53,808 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-07 09:16:53,815 INFO L276 IsEmpty]: Start isEmpty. Operand has 148 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 114 states have internal predecessors, (174), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-07 09:16:53,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-07 09:16:53,832 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:16:53,832 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:16:53,833 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:16:53,838 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:16:53,839 INFO L85 PathProgramCache]: Analyzing trace with hash -602783547, now seen corresponding path program 1 times [2024-11-07 09:16:53,845 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:16:53,846 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [951015839] [2024-11-07 09:16:53,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:16:53,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:16:53,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:16:54,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,281 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 09:16:54,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 09:16:54,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 09:16:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,299 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 09:16:54,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-07 09:16:54,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-07 09:16:54,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 09:16:54,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 09:16:54,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:16:54,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:16:54,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 09:16:54,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 09:16:54,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,344 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 09:16:54,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 09:16:54,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 09:16:54,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,372 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 09:16:54,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 09:16:54,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-07 09:16:54,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,392 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 09:16:54,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,397 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 09:16:54,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,406 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 09:16:54,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-07 09:16:54,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 09:16:54,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,446 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-07 09:16:54,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 09:16:54,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-07 09:16:54,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-07 09:16:54,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-07 09:16:54,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 09:16:54,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,465 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-07 09:16:54,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 09:16:54,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,478 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-07 09:16:54,479 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:16:54,479 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [951015839] [2024-11-07 09:16:54,481 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [951015839] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 09:16:54,482 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 09:16:54,482 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-07 09:16:54,483 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1123900156] [2024-11-07 09:16:54,484 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 09:16:54,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-07 09:16:54,488 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:16:54,505 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-07 09:16:54,506 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 09:16:54,509 INFO L87 Difference]: Start difference. First operand has 148 states, 113 states have (on average 1.5398230088495575) internal successors, (174), 114 states have internal predecessors, (174), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) Second operand has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-07 09:16:54,545 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:16:54,546 INFO L93 Difference]: Finished difference Result 289 states and 502 transitions. [2024-11-07 09:16:54,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-07 09:16:54,548 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) Word has length 230 [2024-11-07 09:16:54,548 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:16:54,555 INFO L225 Difference]: With dead ends: 289 [2024-11-07 09:16:54,555 INFO L226 Difference]: Without dead ends: 144 [2024-11-07 09:16:54,562 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 98 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-07 09:16:54,566 INFO L432 NwaCegarLoop]: 231 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 231 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 09:16:54,566 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 231 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 09:16:54,578 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2024-11-07 09:16:54,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2024-11-07 09:16:54,606 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 110 states have (on average 1.518181818181818) internal successors, (167), 110 states have internal predecessors, (167), 32 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2024-11-07 09:16:54,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 231 transitions. [2024-11-07 09:16:54,612 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 231 transitions. Word has length 230 [2024-11-07 09:16:54,612 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:16:54,612 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 231 transitions. [2024-11-07 09:16:54,613 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 36.5) internal successors, (73), 2 states have internal predecessors, (73), 2 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 2 states have call successors, (32) [2024-11-07 09:16:54,613 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 231 transitions. [2024-11-07 09:16:54,616 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-07 09:16:54,617 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:16:54,617 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:16:54,619 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 09:16:54,619 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:16:54,620 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:16:54,620 INFO L85 PathProgramCache]: Analyzing trace with hash -1785276143, now seen corresponding path program 1 times [2024-11-07 09:16:54,620 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:16:54,620 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665568176] [2024-11-07 09:16:54,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:16:54,620 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:16:54,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:16:54,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 09:16:54,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 09:16:54,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 09:16:54,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 09:16:54,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-07 09:16:54,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-07 09:16:54,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 09:16:54,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 09:16:54,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:16:54,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:16:54,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 09:16:54,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:54,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 09:16:54,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 09:16:55,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,002 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 09:16:55,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,005 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 09:16:55,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 09:16:55,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 09:16:55,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-07 09:16:55,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 09:16:55,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,018 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 09:16:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,020 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 09:16:55,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-07 09:16:55,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 09:16:55,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-07 09:16:55,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 09:16:55,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,034 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-07 09:16:55,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,039 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-07 09:16:55,040 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-07 09:16:55,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 09:16:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-07 09:16:55,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 09:16:55,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,058 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-07 09:16:55,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:16:55,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665568176] [2024-11-07 09:16:55,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665568176] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 09:16:55,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 09:16:55,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 09:16:55,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1606003667] [2024-11-07 09:16:55,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 09:16:55,063 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 09:16:55,064 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:16:55,065 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 09:16:55,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 09:16:55,065 INFO L87 Difference]: Start difference. First operand 144 states and 231 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-07 09:16:55,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:16:55,189 INFO L93 Difference]: Finished difference Result 382 states and 612 transitions. [2024-11-07 09:16:55,190 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 09:16:55,191 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 230 [2024-11-07 09:16:55,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:16:55,195 INFO L225 Difference]: With dead ends: 382 [2024-11-07 09:16:55,195 INFO L226 Difference]: Without dead ends: 241 [2024-11-07 09:16:55,196 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 09:16:55,199 INFO L432 NwaCegarLoop]: 220 mSDtfsCounter, 149 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 25 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 149 SdHoareTripleChecker+Valid, 430 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 25 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 09:16:55,199 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [149 Valid, 430 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 25 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 09:16:55,200 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 241 states. [2024-11-07 09:16:55,250 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 241 to 238. [2024-11-07 09:16:55,253 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238 states, 193 states have (on average 1.5336787564766838) internal successors, (296), 194 states have internal predecessors, (296), 42 states have call successors, (42), 2 states have call predecessors, (42), 2 states have return successors, (42), 41 states have call predecessors, (42), 42 states have call successors, (42) [2024-11-07 09:16:55,256 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238 states to 238 states and 380 transitions. [2024-11-07 09:16:55,258 INFO L78 Accepts]: Start accepts. Automaton has 238 states and 380 transitions. Word has length 230 [2024-11-07 09:16:55,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:16:55,260 INFO L471 AbstractCegarLoop]: Abstraction has 238 states and 380 transitions. [2024-11-07 09:16:55,260 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-07 09:16:55,261 INFO L276 IsEmpty]: Start isEmpty. Operand 238 states and 380 transitions. [2024-11-07 09:16:55,267 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-07 09:16:55,267 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:16:55,267 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:16:55,268 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 09:16:55,268 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:16:55,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:16:55,268 INFO L85 PathProgramCache]: Analyzing trace with hash 2115324367, now seen corresponding path program 1 times [2024-11-07 09:16:55,268 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:16:55,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1215093444] [2024-11-07 09:16:55,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:16:55,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:16:55,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:16:55,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 09:16:55,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,478 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 09:16:55,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 09:16:55,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 09:16:55,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-07 09:16:55,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-07 09:16:55,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,490 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 09:16:55,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 09:16:55,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:16:55,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:16:55,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 09:16:55,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,501 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 09:16:55,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 09:16:55,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 09:16:55,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,508 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 09:16:55,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 09:16:55,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 09:16:55,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-07 09:16:55,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 09:16:55,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 09:16:55,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 09:16:55,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-07 09:16:55,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 09:16:55,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-07 09:16:55,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,541 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 09:16:55,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-07 09:16:55,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,545 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-07 09:16:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,547 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-07 09:16:55,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 09:16:55,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,553 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-07 09:16:55,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,555 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 09:16:55,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:55,559 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-07 09:16:55,560 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:16:55,560 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1215093444] [2024-11-07 09:16:55,560 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1215093444] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 09:16:55,560 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 09:16:55,560 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 09:16:55,560 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [871801964] [2024-11-07 09:16:55,560 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 09:16:55,561 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 09:16:55,561 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:16:55,562 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 09:16:55,562 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 09:16:55,562 INFO L87 Difference]: Start difference. First operand 238 states and 380 transitions. Second operand has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-07 09:16:55,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:16:55,646 INFO L93 Difference]: Finished difference Result 665 states and 1060 transitions. [2024-11-07 09:16:55,648 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 09:16:55,649 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 230 [2024-11-07 09:16:55,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:16:55,655 INFO L225 Difference]: With dead ends: 665 [2024-11-07 09:16:55,655 INFO L226 Difference]: Without dead ends: 430 [2024-11-07 09:16:55,656 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 09:16:55,657 INFO L432 NwaCegarLoop]: 258 mSDtfsCounter, 145 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 28 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 145 SdHoareTripleChecker+Valid, 471 SdHoareTripleChecker+Invalid, 30 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 28 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-07 09:16:55,657 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [145 Valid, 471 Invalid, 30 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 28 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-07 09:16:55,660 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2024-11-07 09:16:55,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 427. [2024-11-07 09:16:55,696 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 427 states, 358 states have (on average 1.5335195530726258) internal successors, (549), 361 states have internal predecessors, (549), 64 states have call successors, (64), 4 states have call predecessors, (64), 4 states have return successors, (64), 61 states have call predecessors, (64), 64 states have call successors, (64) [2024-11-07 09:16:55,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 677 transitions. [2024-11-07 09:16:55,701 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 677 transitions. Word has length 230 [2024-11-07 09:16:55,702 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:16:55,702 INFO L471 AbstractCegarLoop]: Abstraction has 427 states and 677 transitions. [2024-11-07 09:16:55,702 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 24.333333333333332) internal successors, (73), 3 states have internal predecessors, (73), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-07 09:16:55,702 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 677 transitions. [2024-11-07 09:16:55,707 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-07 09:16:55,707 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:16:55,707 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:16:55,707 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 09:16:55,707 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:16:55,708 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:16:55,709 INFO L85 PathProgramCache]: Analyzing trace with hash 2092692113, now seen corresponding path program 1 times [2024-11-07 09:16:55,709 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:16:55,709 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [665118239] [2024-11-07 09:16:55,709 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:16:55,709 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:16:56,034 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:16:56,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 09:16:56,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 09:16:56,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,651 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 09:16:56,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,654 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 09:16:56,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-07 09:16:56,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-07 09:16:56,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 09:16:56,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 09:16:56,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,689 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:16:56,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:16:56,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 09:16:56,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,701 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 09:16:56,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 09:16:56,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,710 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 09:16:56,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,716 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 09:16:56,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,719 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 09:16:56,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,722 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 09:16:56,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-07 09:16:56,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,728 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 09:16:56,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,737 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 09:16:56,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,740 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 09:16:56,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-07 09:16:56,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 09:16:56,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-07 09:16:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 09:16:56,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-07 09:16:56,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-07 09:16:56,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-07 09:16:56,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,773 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 09:16:56,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-07 09:16:56,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 09:16:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:56,785 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-07 09:16:56,785 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:16:56,785 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [665118239] [2024-11-07 09:16:56,785 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [665118239] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 09:16:56,785 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 09:16:56,785 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 09:16:56,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554848409] [2024-11-07 09:16:56,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 09:16:56,786 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 09:16:56,786 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:16:56,788 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 09:16:56,788 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 09:16:56,788 INFO L87 Difference]: Start difference. First operand 427 states and 677 transitions. Second operand has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-07 09:16:57,445 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:16:57,446 INFO L93 Difference]: Finished difference Result 1676 states and 2659 transitions. [2024-11-07 09:16:57,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2024-11-07 09:16:57,447 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 230 [2024-11-07 09:16:57,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:16:57,455 INFO L225 Difference]: With dead ends: 1676 [2024-11-07 09:16:57,455 INFO L226 Difference]: Without dead ends: 1252 [2024-11-07 09:16:57,457 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-11-07 09:16:57,458 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 444 mSDsluCounter, 387 mSDsCounter, 0 mSdLazyCounter, 350 mSolverCounterSat, 36 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 444 SdHoareTripleChecker+Valid, 562 SdHoareTripleChecker+Invalid, 386 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 36 IncrementalHoareTripleChecker+Valid, 350 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-11-07 09:16:57,458 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [444 Valid, 562 Invalid, 386 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [36 Valid, 350 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-11-07 09:16:57,460 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1252 states. [2024-11-07 09:16:57,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1252 to 953. [2024-11-07 09:16:57,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 953 states, 816 states have (on average 1.5392156862745099) internal successors, (1256), 822 states have internal predecessors, (1256), 128 states have call successors, (128), 8 states have call predecessors, (128), 8 states have return successors, (128), 122 states have call predecessors, (128), 128 states have call successors, (128) [2024-11-07 09:16:57,561 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 953 states to 953 states and 1512 transitions. [2024-11-07 09:16:57,562 INFO L78 Accepts]: Start accepts. Automaton has 953 states and 1512 transitions. Word has length 230 [2024-11-07 09:16:57,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:16:57,563 INFO L471 AbstractCegarLoop]: Abstraction has 953 states and 1512 transitions. [2024-11-07 09:16:57,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 14.6) internal successors, (73), 5 states have internal predecessors, (73), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-07 09:16:57,563 INFO L276 IsEmpty]: Start isEmpty. Operand 953 states and 1512 transitions. [2024-11-07 09:16:57,567 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-07 09:16:57,567 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:16:57,567 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:16:57,567 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 09:16:57,568 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:16:57,568 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:16:57,568 INFO L85 PathProgramCache]: Analyzing trace with hash -1577104055, now seen corresponding path program 1 times [2024-11-07 09:16:57,568 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:16:57,568 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1658988791] [2024-11-07 09:16:57,568 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:16:57,569 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:16:57,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:16:58,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 09:16:58,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,179 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 09:16:58,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 09:16:58,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 09:16:58,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-07 09:16:58,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,187 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-07 09:16:58,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 09:16:58,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 09:16:58,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,210 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:16:58,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:16:58,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,218 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 09:16:58,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,222 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 09:16:58,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 09:16:58,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 09:16:58,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 09:16:58,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 09:16:58,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,240 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 09:16:58,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,244 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-07 09:16:58,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 09:16:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 09:16:58,254 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,256 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 09:16:58,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,260 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-07 09:16:58,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,264 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 09:16:58,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,268 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-07 09:16:58,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,271 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 09:16:58,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-07 09:16:58,277 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-07 09:16:58,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-07 09:16:58,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,287 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 09:16:58,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,292 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-07 09:16:58,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,296 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 09:16:58,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,301 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 24 proven. 69 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-11-07 09:16:58,302 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:16:58,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1658988791] [2024-11-07 09:16:58,302 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1658988791] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 09:16:58,302 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [357613405] [2024-11-07 09:16:58,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:16:58,302 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:16:58,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 09:16:58,305 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 09:16:58,308 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-07 09:16:58,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:16:58,527 INFO L255 TraceCheckSpWp]: Trace formula consists of 574 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 09:16:58,540 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 09:16:58,907 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 891 proven. 63 refuted. 0 times theorem prover too weak. 1030 trivial. 0 not checked. [2024-11-07 09:16:58,907 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 09:16:59,244 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 30 proven. 63 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-11-07 09:16:59,244 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [357613405] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 09:16:59,244 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 09:16:59,245 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 8 [2024-11-07 09:16:59,245 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1246751412] [2024-11-07 09:16:59,245 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 09:16:59,247 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-11-07 09:16:59,247 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:16:59,248 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-11-07 09:16:59,248 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2024-11-07 09:16:59,248 INFO L87 Difference]: Start difference. First operand 953 states and 1512 transitions. Second operand has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 3 states have call successors, (76), 2 states have call predecessors, (76), 4 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2024-11-07 09:16:59,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:16:59,741 INFO L93 Difference]: Finished difference Result 1541 states and 2418 transitions. [2024-11-07 09:16:59,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 09:16:59,742 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 3 states have call successors, (76), 2 states have call predecessors, (76), 4 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) Word has length 230 [2024-11-07 09:16:59,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:16:59,748 INFO L225 Difference]: With dead ends: 1541 [2024-11-07 09:16:59,748 INFO L226 Difference]: Without dead ends: 591 [2024-11-07 09:16:59,752 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 535 GetRequests, 520 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=83, Invalid=157, Unknown=0, NotChecked=0, Total=240 [2024-11-07 09:16:59,753 INFO L432 NwaCegarLoop]: 194 mSDtfsCounter, 292 mSDsluCounter, 335 mSDsCounter, 0 mSdLazyCounter, 314 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 301 SdHoareTripleChecker+Valid, 529 SdHoareTripleChecker+Invalid, 368 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 314 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 09:16:59,754 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [301 Valid, 529 Invalid, 368 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [54 Valid, 314 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 09:16:59,755 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 591 states. [2024-11-07 09:16:59,810 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 591 to 586. [2024-11-07 09:16:59,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 586 states, 473 states have (on average 1.4334038054968288) internal successors, (678), 476 states have internal predecessors, (678), 98 states have call successors, (98), 14 states have call predecessors, (98), 14 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-07 09:16:59,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 874 transitions. [2024-11-07 09:16:59,818 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 874 transitions. Word has length 230 [2024-11-07 09:16:59,818 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:16:59,819 INFO L471 AbstractCegarLoop]: Abstraction has 586 states and 874 transitions. [2024-11-07 09:16:59,819 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 12.625) internal successors, (101), 8 states have internal predecessors, (101), 3 states have call successors, (76), 2 states have call predecessors, (76), 4 states have return successors, (78), 3 states have call predecessors, (78), 3 states have call successors, (78) [2024-11-07 09:16:59,819 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 874 transitions. [2024-11-07 09:16:59,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-07 09:16:59,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:16:59,825 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:16:59,844 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-07 09:17:00,025 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,2 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:17:00,025 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:17:00,026 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:17:00,026 INFO L85 PathProgramCache]: Analyzing trace with hash 1837039778, now seen corresponding path program 1 times [2024-11-07 09:17:00,026 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:17:00,026 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [509090504] [2024-11-07 09:17:00,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:17:00,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:17:00,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,476 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:17:00,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 09:17:00,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,480 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 09:17:00,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 09:17:00,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,484 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 09:17:00,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,487 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-07 09:17:00,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,489 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-07 09:17:00,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 09:17:00,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 09:17:00,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,494 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:17:00,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,496 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:17:00,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 09:17:00,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 09:17:00,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,500 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 09:17:00,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,502 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 09:17:00,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,503 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 09:17:00,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,505 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 09:17:00,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 09:17:00,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-07 09:17:00,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 09:17:00,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 09:17:00,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 09:17:00,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-07 09:17:00,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 09:17:00,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-07 09:17:00,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 09:17:00,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-07 09:17:00,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,531 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-07 09:17:00,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,533 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-07 09:17:00,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 09:17:00,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-07 09:17:00,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 09:17:00,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:00,556 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-07 09:17:00,557 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:17:00,557 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [509090504] [2024-11-07 09:17:00,557 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [509090504] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 09:17:00,557 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 09:17:00,558 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-11-07 09:17:00,558 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [586262320] [2024-11-07 09:17:00,558 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 09:17:00,558 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-11-07 09:17:00,558 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:17:00,559 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-11-07 09:17:00,559 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 09:17:00,559 INFO L87 Difference]: Start difference. First operand 586 states and 874 transitions. Second operand has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-07 09:17:00,967 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:17:00,968 INFO L93 Difference]: Finished difference Result 1261 states and 1882 transitions. [2024-11-07 09:17:00,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-11-07 09:17:00,968 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 232 [2024-11-07 09:17:00,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:17:00,975 INFO L225 Difference]: With dead ends: 1261 [2024-11-07 09:17:00,975 INFO L226 Difference]: Without dead ends: 1008 [2024-11-07 09:17:00,976 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-11-07 09:17:00,976 INFO L432 NwaCegarLoop]: 175 mSDtfsCounter, 181 mSDsluCounter, 247 mSDsCounter, 0 mSdLazyCounter, 245 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 422 SdHoareTripleChecker+Invalid, 247 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 245 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 09:17:00,977 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 422 Invalid, 247 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 245 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 09:17:00,978 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1008 states. [2024-11-07 09:17:01,047 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1008 to 642. [2024-11-07 09:17:01,049 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 642 states, 529 states have (on average 1.44234404536862) internal successors, (763), 532 states have internal predecessors, (763), 98 states have call successors, (98), 14 states have call predecessors, (98), 14 states have return successors, (98), 95 states have call predecessors, (98), 98 states have call successors, (98) [2024-11-07 09:17:01,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 642 states to 642 states and 959 transitions. [2024-11-07 09:17:01,055 INFO L78 Accepts]: Start accepts. Automaton has 642 states and 959 transitions. Word has length 232 [2024-11-07 09:17:01,056 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:17:01,056 INFO L471 AbstractCegarLoop]: Abstraction has 642 states and 959 transitions. [2024-11-07 09:17:01,056 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 18.75) internal successors, (75), 4 states have internal predecessors, (75), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-07 09:17:01,056 INFO L276 IsEmpty]: Start isEmpty. Operand 642 states and 959 transitions. [2024-11-07 09:17:01,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-07 09:17:01,060 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:17:01,061 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:17:01,062 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 09:17:01,062 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:17:01,062 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:17:01,062 INFO L85 PathProgramCache]: Analyzing trace with hash -1832756390, now seen corresponding path program 1 times [2024-11-07 09:17:01,062 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:17:01,063 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [29986292] [2024-11-07 09:17:01,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:17:01,063 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:17:01,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,691 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:17:01,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 09:17:01,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,697 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 09:17:01,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,699 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 09:17:01,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,700 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 09:17:01,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,702 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-07 09:17:01,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,704 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-07 09:17:01,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 09:17:01,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,708 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 09:17:01,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:17:01,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,711 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:17:01,712 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,713 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 09:17:01,714 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,715 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 09:17:01,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 09:17:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,734 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 09:17:01,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,738 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 09:17:01,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,741 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 09:17:01,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 09:17:01,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-07 09:17:01,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 09:17:01,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 09:17:01,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 09:17:01,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-07 09:17:01,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 09:17:01,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-07 09:17:01,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,775 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 09:17:01,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-07 09:17:01,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,783 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-07 09:17:01,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,788 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-07 09:17:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,792 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 09:17:01,794 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,796 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-07 09:17:01,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,799 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 09:17:01,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:01,804 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 39 proven. 54 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-11-07 09:17:01,804 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:17:01,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [29986292] [2024-11-07 09:17:01,804 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [29986292] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 09:17:01,804 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [165178581] [2024-11-07 09:17:01,805 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:17:01,805 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:17:01,805 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 09:17:01,807 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 09:17:01,809 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-07 09:17:02,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:02,007 INFO L255 TraceCheckSpWp]: Trace formula consists of 579 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 09:17:02,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 09:17:02,256 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 993 proven. 54 refuted. 0 times theorem prover too weak. 937 trivial. 0 not checked. [2024-11-07 09:17:02,256 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 09:17:02,520 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 39 proven. 54 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-11-07 09:17:02,520 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [165178581] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 09:17:02,521 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 09:17:02,521 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-07 09:17:02,521 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1677661317] [2024-11-07 09:17:02,521 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 09:17:02,522 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 09:17:02,522 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:17:02,522 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 09:17:02,523 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 09:17:02,523 INFO L87 Difference]: Start difference. First operand 642 states and 959 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-07 09:17:02,855 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:17:02,855 INFO L93 Difference]: Finished difference Result 1008 states and 1508 transitions. [2024-11-07 09:17:02,856 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 09:17:02,856 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) Word has length 232 [2024-11-07 09:17:02,857 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:17:02,859 INFO L225 Difference]: With dead ends: 1008 [2024-11-07 09:17:02,859 INFO L226 Difference]: Without dead ends: 396 [2024-11-07 09:17:02,863 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 524 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-07 09:17:02,864 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 282 mSDsluCounter, 285 mSDsCounter, 0 mSdLazyCounter, 204 mSolverCounterSat, 37 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 294 SdHoareTripleChecker+Valid, 461 SdHoareTripleChecker+Invalid, 241 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 37 IncrementalHoareTripleChecker+Valid, 204 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 09:17:02,864 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [294 Valid, 461 Invalid, 241 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [37 Valid, 204 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 09:17:02,866 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2024-11-07 09:17:02,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 388. [2024-11-07 09:17:02,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 388 states, 303 states have (on average 1.4026402640264026) internal successors, (425), 304 states have internal predecessors, (425), 74 states have call successors, (74), 10 states have call predecessors, (74), 10 states have return successors, (74), 73 states have call predecessors, (74), 74 states have call successors, (74) [2024-11-07 09:17:02,922 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 388 states to 388 states and 573 transitions. [2024-11-07 09:17:02,923 INFO L78 Accepts]: Start accepts. Automaton has 388 states and 573 transitions. Word has length 232 [2024-11-07 09:17:02,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:17:02,924 INFO L471 AbstractCegarLoop]: Abstraction has 388 states and 573 transitions. [2024-11-07 09:17:02,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (50), 2 states have call predecessors, (50), 4 states have return successors, (51), 2 states have call predecessors, (51), 2 states have call successors, (51) [2024-11-07 09:17:02,924 INFO L276 IsEmpty]: Start isEmpty. Operand 388 states and 573 transitions. [2024-11-07 09:17:02,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-07 09:17:02,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:17:02,927 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:17:02,947 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-07 09:17:03,128 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,3 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:17:03,128 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:17:03,128 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:17:03,129 INFO L85 PathProgramCache]: Analyzing trace with hash 639475994, now seen corresponding path program 1 times [2024-11-07 09:17:03,129 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:17:03,129 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1869798284] [2024-11-07 09:17:03,129 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:17:03,129 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:17:03,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:17:04,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,303 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 09:17:04,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 09:17:04,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 09:17:04,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 09:17:04,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-07 09:17:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-07 09:17:04,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 09:17:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 09:17:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:17:04,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:17:04,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 09:17:04,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 09:17:04,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 09:17:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 09:17:04,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 09:17:04,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 09:17:04,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,327 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 09:17:04,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-07 09:17:04,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 09:17:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 09:17:04,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 09:17:04,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-07 09:17:04,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 09:17:04,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-07 09:17:04,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 09:17:04,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-07 09:17:04,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-07 09:17:04,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-07 09:17:04,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 09:17:04,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,375 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-07 09:17:04,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,378 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 09:17:04,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,382 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 84 proven. 9 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-11-07 09:17:04,382 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:17:04,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1869798284] [2024-11-07 09:17:04,382 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1869798284] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 09:17:04,382 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2141709507] [2024-11-07 09:17:04,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:17:04,382 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:17:04,383 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 09:17:04,386 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 09:17:04,388 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-07 09:17:04,611 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:04,615 INFO L255 TraceCheckSpWp]: Trace formula consists of 581 conjuncts, 12 conjuncts are in the unsatisfiable core [2024-11-07 09:17:04,621 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 09:17:05,379 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 423 proven. 9 refuted. 0 times theorem prover too weak. 1552 trivial. 0 not checked. [2024-11-07 09:17:05,380 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 09:17:06,041 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 84 proven. 9 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-11-07 09:17:06,042 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2141709507] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 09:17:06,042 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 09:17:06,042 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 10, 9] total 19 [2024-11-07 09:17:06,042 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1332785852] [2024-11-07 09:17:06,042 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 09:17:06,043 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 09:17:06,043 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:17:06,044 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 09:17:06,044 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=80, Invalid=262, Unknown=0, NotChecked=0, Total=342 [2024-11-07 09:17:06,045 INFO L87 Difference]: Start difference. First operand 388 states and 573 transitions. Second operand has 19 states, 19 states have (on average 7.684210526315789) internal successors, (146), 19 states have internal predecessors, (146), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-11-07 09:17:19,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:17:19,586 INFO L93 Difference]: Finished difference Result 5824 states and 8299 transitions. [2024-11-07 09:17:19,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 135 states. [2024-11-07 09:17:19,587 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 7.684210526315789) internal successors, (146), 19 states have internal predecessors, (146), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) Word has length 232 [2024-11-07 09:17:19,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:17:19,619 INFO L225 Difference]: With dead ends: 5824 [2024-11-07 09:17:19,620 INFO L226 Difference]: Without dead ends: 5466 [2024-11-07 09:17:19,629 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 687 GetRequests, 544 SyntacticMatches, 1 SemanticMatches, 142 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7758 ImplicationChecksByTransitivity, 4.9s TimeCoverageRelationStatistics Valid=3654, Invalid=16938, Unknown=0, NotChecked=0, Total=20592 [2024-11-07 09:17:19,630 INFO L432 NwaCegarLoop]: 233 mSDtfsCounter, 4695 mSDsluCounter, 2294 mSDsCounter, 0 mSdLazyCounter, 3963 mSolverCounterSat, 3079 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 6.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4698 SdHoareTripleChecker+Valid, 2527 SdHoareTripleChecker+Invalid, 7042 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 3079 IncrementalHoareTripleChecker+Valid, 3963 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 7.8s IncrementalHoareTripleChecker+Time [2024-11-07 09:17:19,630 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4698 Valid, 2527 Invalid, 7042 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [3079 Valid, 3963 Invalid, 0 Unknown, 0 Unchecked, 7.8s Time] [2024-11-07 09:17:19,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5466 states. [2024-11-07 09:17:19,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5466 to 1514. [2024-11-07 09:17:19,982 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 1514 states, 1192 states have (on average 1.4085570469798658) internal successors, (1679), 1197 states have internal predecessors, (1679), 276 states have call successors, (276), 45 states have call predecessors, (276), 45 states have return successors, (276), 271 states have call predecessors, (276), 276 states have call successors, (276) [2024-11-07 09:17:19,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1514 states to 1514 states and 2231 transitions. [2024-11-07 09:17:19,993 INFO L78 Accepts]: Start accepts. Automaton has 1514 states and 2231 transitions. Word has length 232 [2024-11-07 09:17:19,993 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:17:19,993 INFO L471 AbstractCegarLoop]: Abstraction has 1514 states and 2231 transitions. [2024-11-07 09:17:19,994 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 7.684210526315789) internal successors, (146), 19 states have internal predecessors, (146), 3 states have call successors, (38), 2 states have call predecessors, (38), 4 states have return successors, (39), 3 states have call predecessors, (39), 3 states have call successors, (39) [2024-11-07 09:17:19,994 INFO L276 IsEmpty]: Start isEmpty. Operand 1514 states and 2231 transitions. [2024-11-07 09:17:19,997 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-07 09:17:19,998 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:17:19,998 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:17:20,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2024-11-07 09:17:20,202 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,4 /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:17:20,203 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:17:20,204 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:17:20,204 INFO L85 PathProgramCache]: Analyzing trace with hash -381592360, now seen corresponding path program 1 times [2024-11-07 09:17:20,204 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:17:20,204 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [70442575] [2024-11-07 09:17:20,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:17:20,204 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:17:20,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,851 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:17:20,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 09:17:20,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,859 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 09:17:20,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,862 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 09:17:20,863 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,864 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 09:17:20,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-07 09:17:20,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,869 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-07 09:17:20,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,872 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 09:17:20,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,874 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 09:17:20,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,877 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:17:20,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:17:20,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,882 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 09:17:20,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,885 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 09:17:20,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 09:17:20,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 09:17:20,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,900 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 09:17:20,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,904 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 09:17:20,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 09:17:20,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,909 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-07 09:17:20,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 09:17:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 09:17:20,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 09:17:20,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-07 09:17:20,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 09:17:20,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,928 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-07 09:17:20,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 09:17:20,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-07 09:17:20,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-07 09:17:20,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-07 09:17:20,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 09:17:20,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-07 09:17:20,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 09:17:20,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:20,957 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-07 09:17:20,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:17:20,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [70442575] [2024-11-07 09:17:20,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [70442575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 09:17:20,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 09:17:20,958 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 09:17:20,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415434575] [2024-11-07 09:17:20,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 09:17:20,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 09:17:20,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:17:20,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 09:17:20,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-07 09:17:20,959 INFO L87 Difference]: Start difference. First operand 1514 states and 2231 transitions. Second operand has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-07 09:17:21,865 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:17:21,865 INFO L93 Difference]: Finished difference Result 6565 states and 9734 transitions. [2024-11-07 09:17:21,866 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 09:17:21,866 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 232 [2024-11-07 09:17:21,866 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:17:21,892 INFO L225 Difference]: With dead ends: 6565 [2024-11-07 09:17:21,892 INFO L226 Difference]: Without dead ends: 5112 [2024-11-07 09:17:21,898 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 68 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2024-11-07 09:17:21,899 INFO L432 NwaCegarLoop]: 211 mSDtfsCounter, 575 mSDsluCounter, 808 mSDsCounter, 0 mSdLazyCounter, 106 mSolverCounterSat, 102 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 575 SdHoareTripleChecker+Valid, 1019 SdHoareTripleChecker+Invalid, 208 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 102 IncrementalHoareTripleChecker+Valid, 106 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.3s IncrementalHoareTripleChecker+Time [2024-11-07 09:17:21,899 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [575 Valid, 1019 Invalid, 208 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [102 Valid, 106 Invalid, 0 Unknown, 0 Unchecked, 0.3s Time] [2024-11-07 09:17:21,904 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5112 states. [2024-11-07 09:17:22,395 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5112 to 2931. [2024-11-07 09:17:22,400 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2931 states, 2321 states have (on average 1.4067212408444636) internal successors, (3265), 2330 states have internal predecessors, (3265), 524 states have call successors, (524), 85 states have call predecessors, (524), 85 states have return successors, (524), 515 states have call predecessors, (524), 524 states have call successors, (524) [2024-11-07 09:17:22,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2931 states to 2931 states and 4313 transitions. [2024-11-07 09:17:22,412 INFO L78 Accepts]: Start accepts. Automaton has 2931 states and 4313 transitions. Word has length 232 [2024-11-07 09:17:22,413 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:17:22,413 INFO L471 AbstractCegarLoop]: Abstraction has 2931 states and 4313 transitions. [2024-11-07 09:17:22,413 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 15.0) internal successors, (75), 5 states have internal predecessors, (75), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-07 09:17:22,413 INFO L276 IsEmpty]: Start isEmpty. Operand 2931 states and 4313 transitions. [2024-11-07 09:17:22,419 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-07 09:17:22,419 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:17:22,419 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:17:22,419 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 09:17:22,419 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:17:22,420 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:17:22,420 INFO L85 PathProgramCache]: Analyzing trace with hash -1208254438, now seen corresponding path program 1 times [2024-11-07 09:17:22,420 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:17:22,420 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [832819496] [2024-11-07 09:17:22,420 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:17:22,420 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:17:22,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 09:17:22,801 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [543095083] [2024-11-07 09:17:22,802 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:17:22,802 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:17:22,802 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 09:17:22,804 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 09:17:22,806 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-07 09:17:23,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:23,045 INFO L255 TraceCheckSpWp]: Trace formula consists of 582 conjuncts, 15 conjuncts are in the unsatisfiable core [2024-11-07 09:17:23,050 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 09:17:23,652 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1246 proven. 60 refuted. 0 times theorem prover too weak. 678 trivial. 0 not checked. [2024-11-07 09:17:23,652 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 09:17:24,048 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:17:24,048 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [832819496] [2024-11-07 09:17:24,050 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 09:17:24,050 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [543095083] [2024-11-07 09:17:24,050 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [543095083] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 09:17:24,050 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-07 09:17:24,050 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10] total 10 [2024-11-07 09:17:24,050 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1156224756] [2024-11-07 09:17:24,050 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-07 09:17:24,051 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-11-07 09:17:24,051 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:17:24,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-11-07 09:17:24,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44, Invalid=138, Unknown=0, NotChecked=0, Total=182 [2024-11-07 09:17:24,053 INFO L87 Difference]: Start difference. First operand 2931 states and 4313 transitions. Second operand has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 3 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-07 09:17:25,531 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:17:25,531 INFO L93 Difference]: Finished difference Result 7606 states and 10985 transitions. [2024-11-07 09:17:25,531 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-07 09:17:25,532 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 3 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 232 [2024-11-07 09:17:25,532 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:17:25,555 INFO L225 Difference]: With dead ends: 7606 [2024-11-07 09:17:25,555 INFO L226 Difference]: Without dead ends: 4744 [2024-11-07 09:17:25,563 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 318 GetRequests, 294 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 104 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=200, Invalid=450, Unknown=0, NotChecked=0, Total=650 [2024-11-07 09:17:25,564 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 864 mSDsluCounter, 463 mSDsCounter, 0 mSdLazyCounter, 595 mSolverCounterSat, 231 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 878 SdHoareTripleChecker+Valid, 620 SdHoareTripleChecker+Invalid, 826 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 231 IncrementalHoareTripleChecker+Valid, 595 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-11-07 09:17:25,564 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [878 Valid, 620 Invalid, 826 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [231 Valid, 595 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-11-07 09:17:25,568 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4744 states. [2024-11-07 09:17:26,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4744 to 3637. [2024-11-07 09:17:26,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3637 states, 3058 states have (on average 1.4058207979071289) internal successors, (4299), 3069 states have internal predecessors, (4299), 468 states have call successors, (468), 110 states have call predecessors, (468), 110 states have return successors, (468), 457 states have call predecessors, (468), 468 states have call successors, (468) [2024-11-07 09:17:26,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3637 states to 3637 states and 5235 transitions. [2024-11-07 09:17:26,086 INFO L78 Accepts]: Start accepts. Automaton has 3637 states and 5235 transitions. Word has length 232 [2024-11-07 09:17:26,087 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:17:26,087 INFO L471 AbstractCegarLoop]: Abstraction has 3637 states and 5235 transitions. [2024-11-07 09:17:26,088 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 8.7) internal successors, (87), 10 states have internal predecessors, (87), 3 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-07 09:17:26,088 INFO L276 IsEmpty]: Start isEmpty. Operand 3637 states and 5235 transitions. [2024-11-07 09:17:26,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-07 09:17:26,093 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:17:26,095 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:17:26,114 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2024-11-07 09:17:26,298 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,SelfDestructingSolverStorable9 [2024-11-07 09:17:26,299 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:17:26,299 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:17:26,299 INFO L85 PathProgramCache]: Analyzing trace with hash -1173894044, now seen corresponding path program 1 times [2024-11-07 09:17:26,299 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:17:26,299 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [860166763] [2024-11-07 09:17:26,299 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:17:26,299 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:17:26,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unknown [2024-11-07 09:17:26,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1786596724] [2024-11-07 09:17:26,489 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:17:26,490 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:17:26,490 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 09:17:26,492 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 09:17:26,494 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-07 09:17:26,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:26,706 INFO L255 TraceCheckSpWp]: Trace formula consists of 583 conjuncts, 25 conjuncts are in the unsatisfiable core [2024-11-07 09:17:26,711 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 09:17:27,565 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 1173 proven. 48 refuted. 0 times theorem prover too weak. 763 trivial. 0 not checked. [2024-11-07 09:17:27,565 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 09:17:29,561 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:17:29,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [860166763] [2024-11-07 09:17:29,561 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2024-11-07 09:17:29,561 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1786596724] [2024-11-07 09:17:29,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1786596724] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 09:17:29,562 INFO L185 FreeRefinementEngine]: Found 0 perfect and 1 imperfect interpolant sequences. [2024-11-07 09:17:29,562 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19] total 19 [2024-11-07 09:17:29,562 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265243557] [2024-11-07 09:17:29,562 INFO L85 oduleStraightlineAll]: Using 1 imperfect interpolants to construct interpolant automaton [2024-11-07 09:17:29,563 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-07 09:17:29,563 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:17:29,563 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-07 09:17:29,563 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=127, Invalid=685, Unknown=0, NotChecked=0, Total=812 [2024-11-07 09:17:29,564 INFO L87 Difference]: Start difference. First operand 3637 states and 5235 transitions. Second operand has 19 states, 19 states have (on average 4.578947368421052) internal successors, (87), 19 states have internal predecessors, (87), 3 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-07 09:17:34,322 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:17:37,804 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 3.27s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:17:44,257 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 2.87s for a HTC check with result INVALID. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:17:55,112 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 5.40s for a HTC check with result UNKNOWN. Formula has sorts [Bool, Int], hasArrays=false, hasNonlinArith=true, quantifiers [0] [2024-11-07 09:17:57,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:17:57,511 INFO L93 Difference]: Finished difference Result 25385 states and 35764 transitions. [2024-11-07 09:17:57,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 109 states. [2024-11-07 09:17:57,511 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.578947368421052) internal successors, (87), 19 states have internal predecessors, (87), 3 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) Word has length 232 [2024-11-07 09:17:57,512 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:17:57,602 INFO L225 Difference]: With dead ends: 25385 [2024-11-07 09:17:57,602 INFO L226 Difference]: Without dead ends: 21789 [2024-11-07 09:17:57,620 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 393 GetRequests, 267 SyntacticMatches, 2 SemanticMatches, 124 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5104 ImplicationChecksByTransitivity, 4.0s TimeCoverageRelationStatistics Valid=2822, Invalid=12928, Unknown=0, NotChecked=0, Total=15750 [2024-11-07 09:17:57,621 INFO L432 NwaCegarLoop]: 370 mSDtfsCounter, 2416 mSDsluCounter, 2893 mSDsCounter, 0 mSdLazyCounter, 4211 mSolverCounterSat, 996 mSolverCounterUnsat, 3 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 20.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 2438 SdHoareTripleChecker+Valid, 3263 SdHoareTripleChecker+Invalid, 5210 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 996 IncrementalHoareTripleChecker+Valid, 4211 IncrementalHoareTripleChecker+Invalid, 3 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 21.4s IncrementalHoareTripleChecker+Time [2024-11-07 09:17:57,621 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [2438 Valid, 3263 Invalid, 5210 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [996 Valid, 4211 Invalid, 3 Unknown, 0 Unchecked, 21.4s Time] [2024-11-07 09:17:57,636 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21789 states. [2024-11-07 09:17:59,490 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21789 to 12772. [2024-11-07 09:17:59,512 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12772 states, 11133 states have (on average 1.4186652294978892) internal successors, (15794), 11172 states have internal predecessors, (15794), 1268 states have call successors, (1268), 370 states have call predecessors, (1268), 370 states have return successors, (1268), 1229 states have call predecessors, (1268), 1268 states have call successors, (1268) [2024-11-07 09:17:59,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12772 states to 12772 states and 18330 transitions. [2024-11-07 09:17:59,559 INFO L78 Accepts]: Start accepts. Automaton has 12772 states and 18330 transitions. Word has length 232 [2024-11-07 09:17:59,560 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:17:59,560 INFO L471 AbstractCegarLoop]: Abstraction has 12772 states and 18330 transitions. [2024-11-07 09:17:59,560 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.578947368421052) internal successors, (87), 19 states have internal predecessors, (87), 3 states have call successors, (32), 3 states have call predecessors, (32), 5 states have return successors, (32), 3 states have call predecessors, (32), 3 states have call successors, (32) [2024-11-07 09:17:59,560 INFO L276 IsEmpty]: Start isEmpty. Operand 12772 states and 18330 transitions. [2024-11-07 09:17:59,570 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-07 09:17:59,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:17:59,571 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:17:59,591 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-07 09:17:59,771 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,SelfDestructingSolverStorable10 [2024-11-07 09:17:59,772 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:17:59,772 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:17:59,772 INFO L85 PathProgramCache]: Analyzing trace with hash -1033345434, now seen corresponding path program 1 times [2024-11-07 09:17:59,772 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:17:59,773 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1157272531] [2024-11-07 09:17:59,773 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:17:59,773 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:17:59,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:17:59,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 09:17:59,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 09:17:59,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 09:17:59,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 09:17:59,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-07 09:17:59,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-07 09:17:59,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 09:17:59,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 09:17:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:17:59,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:17:59,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 09:17:59,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 09:17:59,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,956 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 09:17:59,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 09:17:59,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 09:17:59,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 09:17:59,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 09:17:59,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-07 09:17:59,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 09:17:59,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 09:17:59,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 09:17:59,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-07 09:17:59,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 09:17:59,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-07 09:17:59,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 09:17:59,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-07 09:17:59,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-07 09:17:59,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-07 09:17:59,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 09:17:59,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-07 09:17:59,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 09:17:59,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:17:59,984 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1984 trivial. 0 not checked. [2024-11-07 09:17:59,984 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:17:59,984 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1157272531] [2024-11-07 09:17:59,984 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1157272531] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 09:17:59,984 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 09:17:59,984 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-11-07 09:17:59,985 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1053662861] [2024-11-07 09:17:59,985 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 09:17:59,986 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-07 09:17:59,986 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:17:59,987 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-07 09:17:59,987 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 09:17:59,987 INFO L87 Difference]: Start difference. First operand 12772 states and 18330 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-07 09:18:01,946 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:18:01,947 INFO L93 Difference]: Finished difference Result 25135 states and 36067 transitions. [2024-11-07 09:18:01,948 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-07 09:18:01,948 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) Word has length 232 [2024-11-07 09:18:01,949 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:18:01,990 INFO L225 Difference]: With dead ends: 25135 [2024-11-07 09:18:01,990 INFO L226 Difference]: Without dead ends: 12404 [2024-11-07 09:18:02,011 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 66 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-11-07 09:18:02,012 INFO L432 NwaCegarLoop]: 216 mSDtfsCounter, 0 mSDsluCounter, 213 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 429 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-07 09:18:02,012 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 429 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-07 09:18:02,020 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12404 states. [2024-11-07 09:18:03,512 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12404 to 12404. [2024-11-07 09:18:03,529 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 12404 states, 10765 states have (on average 1.4088248954946587) internal successors, (15166), 10804 states have internal predecessors, (15166), 1268 states have call successors, (1268), 370 states have call predecessors, (1268), 370 states have return successors, (1268), 1229 states have call predecessors, (1268), 1268 states have call successors, (1268) [2024-11-07 09:18:03,555 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12404 states to 12404 states and 17702 transitions. [2024-11-07 09:18:03,562 INFO L78 Accepts]: Start accepts. Automaton has 12404 states and 17702 transitions. Word has length 232 [2024-11-07 09:18:03,563 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:18:03,563 INFO L471 AbstractCegarLoop]: Abstraction has 12404 states and 17702 transitions. [2024-11-07 09:18:03,563 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 1 states have call successors, (32), 1 states have call predecessors, (32), 1 states have return successors, (32), 1 states have call predecessors, (32), 1 states have call successors, (32) [2024-11-07 09:18:03,563 INFO L276 IsEmpty]: Start isEmpty. Operand 12404 states and 17702 transitions. [2024-11-07 09:18:03,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-07 09:18:03,571 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:18:03,572 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:18:03,572 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-11-07 09:18:03,572 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 09:18:03,572 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 09:18:03,572 INFO L85 PathProgramCache]: Analyzing trace with hash -899134430, now seen corresponding path program 1 times [2024-11-07 09:18:03,573 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 09:18:03,573 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1513115690] [2024-11-07 09:18:03,573 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:18:03,573 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 09:18:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,940 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-07 09:18:03,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-07 09:18:03,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-07 09:18:03,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 23 [2024-11-07 09:18:03,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,945 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-07 09:18:03,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-11-07 09:18:03,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-07 09:18:03,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-11-07 09:18:03,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2024-11-07 09:18:03,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-11-07 09:18:03,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,952 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 63 [2024-11-07 09:18:03,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-11-07 09:18:03,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,954 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-07 09:18:03,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2024-11-07 09:18:03,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,957 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-07 09:18:03,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2024-11-07 09:18:03,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,959 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 96 [2024-11-07 09:18:03,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-07 09:18:03,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2024-11-07 09:18:03,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 112 [2024-11-07 09:18:03,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-07 09:18:03,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-07 09:18:03,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-07 09:18:03,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2024-11-07 09:18:03,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2024-11-07 09:18:03,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2024-11-07 09:18:03,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,990 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2024-11-07 09:18:03,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2024-11-07 09:18:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2024-11-07 09:18:03,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,995 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2024-11-07 09:18:03,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,996 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 173 [2024-11-07 09:18:03,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:03,998 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2024-11-07 09:18:03,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:04,001 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 69 proven. 24 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-11-07 09:18:04,001 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 09:18:04,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1513115690] [2024-11-07 09:18:04,001 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1513115690] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-07 09:18:04,001 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1830585003] [2024-11-07 09:18:04,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 09:18:04,001 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-07 09:18:04,001 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 09:18:04,004 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-07 09:18:04,005 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-07 09:18:04,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 09:18:04,201 INFO L255 TraceCheckSpWp]: Trace formula consists of 580 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-07 09:18:04,204 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-07 09:18:04,327 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 813 proven. 24 refuted. 0 times theorem prover too weak. 1147 trivial. 0 not checked. [2024-11-07 09:18:04,327 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-07 09:18:04,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1984 backedges. 69 proven. 24 refuted. 0 times theorem prover too weak. 1891 trivial. 0 not checked. [2024-11-07 09:18:04,511 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1830585003] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-07 09:18:04,511 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-07 09:18:04,511 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 7 [2024-11-07 09:18:04,511 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977834953] [2024-11-07 09:18:04,511 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-07 09:18:04,512 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 09:18:04,512 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 09:18:04,513 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 09:18:04,513 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-11-07 09:18:04,513 INFO L87 Difference]: Start difference. First operand 12404 states and 17702 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-07 09:18:06,196 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 09:18:06,197 INFO L93 Difference]: Finished difference Result 20329 states and 28770 transitions. [2024-11-07 09:18:06,197 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-11-07 09:18:06,198 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) Word has length 232 [2024-11-07 09:18:06,198 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 09:18:06,228 INFO L225 Difference]: With dead ends: 20329 [2024-11-07 09:18:06,228 INFO L226 Difference]: Without dead ends: 7966 [2024-11-07 09:18:06,252 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 534 GetRequests, 524 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-11-07 09:18:06,253 INFO L432 NwaCegarLoop]: 176 mSDtfsCounter, 150 mSDsluCounter, 287 mSDsCounter, 0 mSdLazyCounter, 190 mSolverCounterSat, 10 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 463 SdHoareTripleChecker+Invalid, 200 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 10 IncrementalHoareTripleChecker+Valid, 190 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-11-07 09:18:06,253 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 463 Invalid, 200 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [10 Valid, 190 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-11-07 09:18:06,259 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 7966 states. [2024-11-07 09:18:06,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 7966 to 3528. [2024-11-07 09:18:06,969 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3528 states, 3167 states have (on average 1.4449005367856016) internal successors, (4576), 3168 states have internal predecessors, (4576), 268 states have call successors, (268), 92 states have call predecessors, (268), 92 states have return successors, (268), 267 states have call predecessors, (268), 268 states have call successors, (268) [2024-11-07 09:18:06,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3528 states to 3528 states and 5112 transitions. [2024-11-07 09:18:06,981 INFO L78 Accepts]: Start accepts. Automaton has 3528 states and 5112 transitions. Word has length 232 [2024-11-07 09:18:06,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 09:18:06,981 INFO L471 AbstractCegarLoop]: Abstraction has 3528 states and 5112 transitions. [2024-11-07 09:18:06,982 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 2 states have call successors, (40), 2 states have call predecessors, (40), 4 states have return successors, (41), 2 states have call predecessors, (41), 2 states have call successors, (41) [2024-11-07 09:18:06,982 INFO L276 IsEmpty]: Start isEmpty. Operand 3528 states and 5112 transitions. [2024-11-07 09:18:06,986 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 233 [2024-11-07 09:18:06,986 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 09:18:06,986 INFO L215 NwaCegarLoop]: trace histogram [32, 32, 32, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 09:18:07,005 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