./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/combinations/Problem05_label47+token_ring.06.cil-2.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4f9af400 extending candidate: java ['java'] extending candidate: /usr/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/oracle-jdk-bin-*/bin/java ['java', '/usr/bin/java'] extending candidate: /opt/openjdk-*/bin/java ['java', '/usr/bin/java'] extending candidate: /usr/lib/jvm/java-*-openjdk-amd64/bin/java ['java', '/usr/bin/java', '/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java', '/usr/lib/jvm/java-17-openjdk-amd64/bin/java', '/usr/lib/jvm/java-11-openjdk-amd64/bin/java', '/usr/lib/jvm/java-1.17.0-openjdk-amd64/bin/java'] ['/root/.sdkman/candidates/java/21.0.5-tem/bin/java', '-Dosgi.configuration.area=/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/config', '-Xmx15G', '-Xms4m', '-jar', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.6.800.v20240513-1750.jar', '-data', '@noDefault', '-ultimatedata', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data', '-tc', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml', '-i', '../sv-benchmarks/c/combinations/Problem05_label47+token_ring.06.cil-2.c', '-s', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf', '--cacsl2boogietranslator.entry.function', 'main', '--witnessprinter.witness.directory', '/storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux', '--witnessprinter.witness.filename', 'witness', '--witnessprinter.write.witness.besides.input.file', 'false', '--witnessprinter.graph.data.specification', 'CHECK( init(main()), LTL(G ! call(reach_error())) )\n\n', '--witnessprinter.graph.data.producer', 'Automizer', '--witnessprinter.graph.data.architecture', '32bit', '--witnessprinter.graph.data.programhash', '8321a367d25b54b23b2762d5ecbfeee51530317d33e488964270d878a9001f5b'] 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/combinations/Problem05_label47+token_ring.06.cil-2.c -s /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 8321a367d25b54b23b2762d5ecbfeee51530317d33e488964270d878a9001f5b --- Real Ultimate output --- This is Ultimate 0.3.0-?-4f9af40 [2024-11-07 01:07:17,225 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-07 01:07:17,310 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-07 01:07:17,317 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-07 01:07:17,320 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-07 01:07:17,347 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-07 01:07:17,350 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-07 01:07:17,350 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-07 01:07:17,351 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-07 01:07:17,351 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-07 01:07:17,352 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-07 01:07:17,352 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-07 01:07:17,352 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-07 01:07:17,352 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-07 01:07:17,352 INFO L153 SettingsManager]: * Use SBE=true [2024-11-07 01:07:17,353 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-07 01:07:17,353 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-07 01:07:17,353 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-07 01:07:17,353 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-07 01:07:17,353 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-07 01:07:17,353 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-07 01:07:17,353 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-07 01:07:17,353 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-07 01:07:17,353 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-07 01:07:17,354 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-07 01:07:17,354 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-07 01:07:17,354 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-07 01:07:17,354 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-07 01:07:17,354 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-07 01:07:17,354 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-07 01:07:17,354 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-07 01:07:17,354 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-07 01:07:17,354 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:07:17,355 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-07 01:07:17,355 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-07 01:07:17,355 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-07 01:07:17,355 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-07 01:07:17,355 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-07 01:07:17,355 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-07 01:07:17,355 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-07 01:07:17,355 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-07 01:07:17,355 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-07 01:07:17,355 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 -> 8321a367d25b54b23b2762d5ecbfeee51530317d33e488964270d878a9001f5b [2024-11-07 01:07:17,655 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-07 01:07:17,666 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-07 01:07:17,669 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-07 01:07:17,670 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-07 01:07:17,670 INFO L274 PluginConnector]: CDTParser initialized [2024-11-07 01:07:17,671 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/combinations/Problem05_label47+token_ring.06.cil-2.c [2024-11-07 01:07:18,919 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-07 01:07:19,486 INFO L384 CDTParser]: Found 1 translation units. [2024-11-07 01:07:19,488 INFO L180 CDTParser]: Scanning /storage/repos/ultimate-jdk21/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label47+token_ring.06.cil-2.c [2024-11-07 01:07:19,538 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/19059f7e3/f6e223f478e0407783297e4c8e57c1c0/FLAG76a4421d2 [2024-11-07 01:07:19,996 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/data/19059f7e3/f6e223f478e0407783297e4c8e57c1c0 [2024-11-07 01:07:19,999 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-07 01:07:20,000 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-07 01:07:20,001 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-07 01:07:20,001 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-07 01:07:20,006 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-07 01:07:20,007 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:07:19" (1/1) ... [2024-11-07 01:07:20,008 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2abdeefd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:20, skipping insertion in model container [2024-11-07 01:07:20,008 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 01:07:19" (1/1) ... [2024-11-07 01:07:20,165 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-07 01:07:21,415 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/combinations/Problem05_label47+token_ring.06.cil-2.c[377612,377625] [2024-11-07 01:07:21,456 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/combinations/Problem05_label47+token_ring.06.cil-2.c[383339,383352] [2024-11-07 01:07:21,626 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:07:21,637 INFO L200 MainTranslator]: Completed pre-run [2024-11-07 01:07:22,305 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/combinations/Problem05_label47+token_ring.06.cil-2.c[377612,377625] [2024-11-07 01:07:22,317 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/combinations/Problem05_label47+token_ring.06.cil-2.c[383339,383352] [2024-11-07 01:07:22,348 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-07 01:07:22,464 INFO L204 MainTranslator]: Completed translation [2024-11-07 01:07:22,466 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22 WrapperNode [2024-11-07 01:07:22,466 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-07 01:07:22,467 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-07 01:07:22,467 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-07 01:07:22,467 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-07 01:07:22,473 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22" (1/1) ... [2024-11-07 01:07:22,536 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22" (1/1) ... [2024-11-07 01:07:22,983 INFO L138 Inliner]: procedures = 56, calls = 59, calls flagged for inlining = 34, calls inlined = 34, statements flattened = 12873 [2024-11-07 01:07:22,984 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-07 01:07:22,986 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-07 01:07:22,986 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-07 01:07:22,986 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-07 01:07:22,995 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22" (1/1) ... [2024-11-07 01:07:22,996 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22" (1/1) ... [2024-11-07 01:07:23,106 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22" (1/1) ... [2024-11-07 01:07:23,193 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 01:07:23,193 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22" (1/1) ... [2024-11-07 01:07:23,194 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22" (1/1) ... [2024-11-07 01:07:23,345 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22" (1/1) ... [2024-11-07 01:07:23,430 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22" (1/1) ... [2024-11-07 01:07:23,469 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22" (1/1) ... [2024-11-07 01:07:23,498 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22" (1/1) ... [2024-11-07 01:07:23,556 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-07 01:07:23,557 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-07 01:07:23,557 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-07 01:07:23,558 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-07 01:07:23,559 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22" (1/1) ... [2024-11-07 01:07:23,566 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-07 01:07:23,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate-jdk21/releaseScripts/default/UAutomizer-linux/z3 [2024-11-07 01:07:23,593 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 01:07:23,597 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 01:07:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-07 01:07:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-07 01:07:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-07 01:07:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-07 01:07:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-07 01:07:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-07 01:07:23,620 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-07 01:07:23,620 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-07 01:07:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-07 01:07:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-07 01:07:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-07 01:07:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-07 01:07:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-07 01:07:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-07 01:07:23,621 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-07 01:07:23,621 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-07 01:07:23,760 INFO L238 CfgBuilder]: Building ICFG [2024-11-07 01:07:23,761 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-07 01:07:31,333 INFO L? ?]: Removed 1719 outVars from TransFormulas that were not future-live. [2024-11-07 01:07:31,333 INFO L287 CfgBuilder]: Performing block encoding [2024-11-07 01:07:31,400 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-07 01:07:31,401 INFO L316 CfgBuilder]: Removed 10 assume(true) statements. [2024-11-07 01:07:31,405 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:07:31 BoogieIcfgContainer [2024-11-07 01:07:31,405 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-07 01:07:31,408 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-07 01:07:31,408 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-07 01:07:31,484 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-07 01:07:31,487 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 01:07:19" (1/3) ... [2024-11-07 01:07:31,490 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5749d3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:07:31, skipping insertion in model container [2024-11-07 01:07:31,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 01:07:22" (2/3) ... [2024-11-07 01:07:31,493 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5749d3c2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 01:07:31, skipping insertion in model container [2024-11-07 01:07:31,493 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 01:07:31" (3/3) ... [2024-11-07 01:07:31,495 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label47+token_ring.06.cil-2.c [2024-11-07 01:07:31,526 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-07 01:07:31,530 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-07 01:07:31,765 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-07 01:07:31,782 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;@3e03ca19, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-07 01:07:31,784 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-07 01:07:31,820 INFO L276 IsEmpty]: Start isEmpty. Operand has 2422 states, 2393 states have (on average 1.8487254492269118) internal successors, (4424), 2396 states have internal predecessors, (4424), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-07 01:07:31,849 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 01:07:31,849 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:07:31,853 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:07:31,854 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:07:31,862 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:07:31,863 INFO L85 PathProgramCache]: Analyzing trace with hash -603322071, now seen corresponding path program 1 times [2024-11-07 01:07:31,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:07:31,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [825152751] [2024-11-07 01:07:31,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:07:31,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:07:32,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:32,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:07:32,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:32,267 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:07:32,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:32,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:07:32,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:32,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:07:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:32,380 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:07:32,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:32,393 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:07:32,395 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:07:32,395 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [825152751] [2024-11-07 01:07:32,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [825152751] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:07:32,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:07:32,398 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-07 01:07:32,400 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [161595993] [2024-11-07 01:07:32,400 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:07:32,403 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-07 01:07:32,404 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:07:32,421 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-07 01:07:32,422 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-07 01:07:32,430 INFO L87 Difference]: Start difference. First operand has 2422 states, 2393 states have (on average 1.8487254492269118) internal successors, (4424), 2396 states have internal predecessors, (4424), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) Second operand has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:33,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:07:33,484 INFO L93 Difference]: Finished difference Result 4910 states and 9040 transitions. [2024-11-07 01:07:33,485 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-07 01:07:33,486 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-07 01:07:33,487 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:07:33,519 INFO L225 Difference]: With dead ends: 4910 [2024-11-07 01:07:33,519 INFO L226 Difference]: Without dead ends: 2431 [2024-11-07 01:07:33,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-07 01:07:33,538 INFO L432 NwaCegarLoop]: 4245 mSDtfsCounter, 595 mSDsluCounter, 12323 mSDsCounter, 0 mSdLazyCounter, 571 mSolverCounterSat, 44 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 613 SdHoareTripleChecker+Valid, 16568 SdHoareTripleChecker+Invalid, 615 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 44 IncrementalHoareTripleChecker+Valid, 571 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:07:33,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [613 Valid, 16568 Invalid, 615 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [44 Valid, 571 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-11-07 01:07:33,559 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2431 states. [2024-11-07 01:07:33,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2431 to 2355. [2024-11-07 01:07:33,694 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2355 states, 2327 states have (on average 1.8362698753760207) internal successors, (4273), 2329 states have internal predecessors, (4273), 20 states have call successors, (20), 6 states have call predecessors, (20), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-11-07 01:07:33,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2355 states to 2355 states and 4313 transitions. [2024-11-07 01:07:33,711 INFO L78 Accepts]: Start accepts. Automaton has 2355 states and 4313 transitions. Word has length 112 [2024-11-07 01:07:33,711 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:07:33,711 INFO L471 AbstractCegarLoop]: Abstraction has 2355 states and 4313 transitions. [2024-11-07 01:07:33,711 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 20.4) internal successors, (102), 3 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:33,711 INFO L276 IsEmpty]: Start isEmpty. Operand 2355 states and 4313 transitions. [2024-11-07 01:07:33,715 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 01:07:33,715 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:07:33,715 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:07:33,716 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-07 01:07:33,716 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:07:33,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:07:33,716 INFO L85 PathProgramCache]: Analyzing trace with hash -1634362969, now seen corresponding path program 1 times [2024-11-07 01:07:33,716 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:07:33,716 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [527519714] [2024-11-07 01:07:33,716 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:07:33,717 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:07:33,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:33,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:07:33,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:33,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:07:33,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:34,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:07:34,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:34,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:07:34,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:34,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:07:34,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:34,083 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:07:34,084 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:07:34,084 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [527519714] [2024-11-07 01:07:34,084 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [527519714] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:07:34,084 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:07:34,084 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:07:34,084 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [388463834] [2024-11-07 01:07:34,084 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:07:34,085 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:07:34,086 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:07:34,086 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:07:34,086 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:07:34,087 INFO L87 Difference]: Start difference. First operand 2355 states and 4313 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:36,415 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:07:36,416 INFO L93 Difference]: Finished difference Result 2966 states and 5283 transitions. [2024-11-07 01:07:36,416 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:07:36,416 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-07 01:07:36,417 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:07:36,433 INFO L225 Difference]: With dead ends: 2966 [2024-11-07 01:07:36,433 INFO L226 Difference]: Without dead ends: 2746 [2024-11-07 01:07:36,435 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:07:36,436 INFO L432 NwaCegarLoop]: 4310 mSDtfsCounter, 4796 mSDsluCounter, 17001 mSDsCounter, 0 mSdLazyCounter, 2093 mSolverCounterSat, 54 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 21311 SdHoareTripleChecker+Invalid, 2147 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 54 IncrementalHoareTripleChecker+Valid, 2093 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.7s IncrementalHoareTripleChecker+Time [2024-11-07 01:07:36,437 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 21311 Invalid, 2147 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [54 Valid, 2093 Invalid, 0 Unknown, 0 Unchecked, 1.7s Time] [2024-11-07 01:07:36,443 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2746 states. [2024-11-07 01:07:36,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2746 to 2585. [2024-11-07 01:07:36,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2585 states, 2532 states have (on average 1.8131911532385465) internal successors, (4591), 2536 states have internal predecessors, (4591), 37 states have call successors, (37), 12 states have call predecessors, (37), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2024-11-07 01:07:36,536 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2585 states to 2585 states and 4672 transitions. [2024-11-07 01:07:36,537 INFO L78 Accepts]: Start accepts. Automaton has 2585 states and 4672 transitions. Word has length 112 [2024-11-07 01:07:36,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:07:36,537 INFO L471 AbstractCegarLoop]: Abstraction has 2585 states and 4672 transitions. [2024-11-07 01:07:36,538 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:36,538 INFO L276 IsEmpty]: Start isEmpty. Operand 2585 states and 4672 transitions. [2024-11-07 01:07:36,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 01:07:36,540 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:07:36,542 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:07:36,542 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-07 01:07:36,543 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:07:36,543 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:07:36,543 INFO L85 PathProgramCache]: Analyzing trace with hash 1041629413, now seen corresponding path program 1 times [2024-11-07 01:07:36,543 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:07:36,543 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1363103635] [2024-11-07 01:07:36,543 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:07:36,543 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:07:36,558 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:36,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:07:36,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:36,695 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:07:36,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:36,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:07:36,774 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:36,791 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:07:36,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:36,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:07:36,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:36,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:07:36,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:07:36,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1363103635] [2024-11-07 01:07:36,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1363103635] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:07:36,805 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:07:36,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:07:36,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2143210754] [2024-11-07 01:07:36,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:07:36,807 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:07:36,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:07:36,808 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:07:36,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:07:36,809 INFO L87 Difference]: Start difference. First operand 2585 states and 4672 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:38,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:07:38,885 INFO L93 Difference]: Finished difference Result 3746 states and 6496 transitions. [2024-11-07 01:07:38,885 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:07:38,886 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-07 01:07:38,886 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:07:38,906 INFO L225 Difference]: With dead ends: 3746 [2024-11-07 01:07:38,906 INFO L226 Difference]: Without dead ends: 3298 [2024-11-07 01:07:38,911 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:07:38,913 INFO L432 NwaCegarLoop]: 4267 mSDtfsCounter, 4821 mSDsluCounter, 16938 mSDsCounter, 0 mSdLazyCounter, 1889 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4834 SdHoareTripleChecker+Valid, 21205 SdHoareTripleChecker+Invalid, 1951 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 1889 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:07:38,914 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4834 Valid, 21205 Invalid, 1951 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 1889 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:07:38,920 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3298 states. [2024-11-07 01:07:39,016 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3298 to 3009. [2024-11-07 01:07:39,079 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3009 states, 2912 states have (on average 1.7747252747252746) internal successors, (5168), 2918 states have internal predecessors, (5168), 67 states have call successors, (67), 24 states have call predecessors, (67), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-11-07 01:07:39,101 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3009 states to 3009 states and 5319 transitions. [2024-11-07 01:07:39,102 INFO L78 Accepts]: Start accepts. Automaton has 3009 states and 5319 transitions. Word has length 112 [2024-11-07 01:07:39,102 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:07:39,102 INFO L471 AbstractCegarLoop]: Abstraction has 3009 states and 5319 transitions. [2024-11-07 01:07:39,102 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:39,102 INFO L276 IsEmpty]: Start isEmpty. Operand 3009 states and 5319 transitions. [2024-11-07 01:07:39,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 01:07:39,108 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:07:39,108 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:07:39,109 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-07 01:07:39,109 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:07:39,110 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:07:39,110 INFO L85 PathProgramCache]: Analyzing trace with hash 158120423, now seen corresponding path program 1 times [2024-11-07 01:07:39,110 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:07:39,114 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1640775464] [2024-11-07 01:07:39,114 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:07:39,114 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:07:39,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:39,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:07:39,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:39,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:07:39,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:39,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:07:39,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:39,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:07:39,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:39,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:07:39,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:39,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:07:39,593 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:07:39,593 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1640775464] [2024-11-07 01:07:39,593 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1640775464] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:07:39,593 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:07:39,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:07:39,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1140632628] [2024-11-07 01:07:39,594 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:07:39,594 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:07:39,598 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:07:39,599 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:07:39,599 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:07:39,599 INFO L87 Difference]: Start difference. First operand 3009 states and 5319 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:41,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:07:41,506 INFO L93 Difference]: Finished difference Result 5272 states and 8863 transitions. [2024-11-07 01:07:41,506 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:07:41,507 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-07 01:07:41,507 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:07:41,528 INFO L225 Difference]: With dead ends: 5272 [2024-11-07 01:07:41,529 INFO L226 Difference]: Without dead ends: 4400 [2024-11-07 01:07:41,533 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:07:41,535 INFO L432 NwaCegarLoop]: 4304 mSDtfsCounter, 4796 mSDsluCounter, 17001 mSDsCounter, 0 mSdLazyCounter, 2068 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 21305 SdHoareTripleChecker+Invalid, 2124 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2068 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:07:41,536 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 21305 Invalid, 2124 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2068 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-07 01:07:41,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4400 states. [2024-11-07 01:07:41,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4400 to 3859. [2024-11-07 01:07:41,660 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3859 states, 3674 states have (on average 1.7212847033206315) internal successors, (6324), 3684 states have internal predecessors, (6324), 127 states have call successors, (127), 48 states have call predecessors, (127), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2024-11-07 01:07:41,671 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3859 states to 3859 states and 6621 transitions. [2024-11-07 01:07:41,672 INFO L78 Accepts]: Start accepts. Automaton has 3859 states and 6621 transitions. Word has length 112 [2024-11-07 01:07:41,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:07:41,673 INFO L471 AbstractCegarLoop]: Abstraction has 3859 states and 6621 transitions. [2024-11-07 01:07:41,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:41,673 INFO L276 IsEmpty]: Start isEmpty. Operand 3859 states and 6621 transitions. [2024-11-07 01:07:41,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 01:07:41,676 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:07:41,676 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:07:41,676 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-07 01:07:41,676 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:07:41,677 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:07:41,677 INFO L85 PathProgramCache]: Analyzing trace with hash 129620133, now seen corresponding path program 1 times [2024-11-07 01:07:41,677 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:07:41,677 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [564703056] [2024-11-07 01:07:41,677 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:07:41,677 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:07:41,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:41,780 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:07:41,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:41,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:07:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:41,856 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:07:41,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:41,867 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:07:41,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:41,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:07:41,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:41,876 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:07:41,876 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:07:41,876 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [564703056] [2024-11-07 01:07:41,876 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [564703056] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:07:41,876 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:07:41,876 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:07:41,877 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1427223181] [2024-11-07 01:07:41,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:07:41,877 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:07:41,877 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:07:41,877 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:07:41,878 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:07:41,878 INFO L87 Difference]: Start difference. First operand 3859 states and 6621 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:43,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:07:43,593 INFO L93 Difference]: Finished difference Result 8322 states and 13611 transitions. [2024-11-07 01:07:43,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:07:43,594 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-07 01:07:43,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:07:43,621 INFO L225 Difference]: With dead ends: 8322 [2024-11-07 01:07:43,621 INFO L226 Difference]: Without dead ends: 6600 [2024-11-07 01:07:43,631 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:07:43,632 INFO L432 NwaCegarLoop]: 4306 mSDtfsCounter, 4796 mSDsluCounter, 17001 mSDsCounter, 0 mSdLazyCounter, 2069 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 21307 SdHoareTripleChecker+Invalid, 2125 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2069 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-07 01:07:43,632 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 21307 Invalid, 2125 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2069 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-07 01:07:43,640 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6600 states. [2024-11-07 01:07:43,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6600 to 5565. [2024-11-07 01:07:43,844 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5565 states, 5204 states have (on average 1.6610299769408148) internal successors, (8644), 5222 states have internal predecessors, (8644), 247 states have call successors, (247), 96 states have call predecessors, (247), 112 states have return successors, (360), 262 states have call predecessors, (360), 247 states have call successors, (360) [2024-11-07 01:07:43,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5565 states to 5565 states and 9251 transitions. [2024-11-07 01:07:43,863 INFO L78 Accepts]: Start accepts. Automaton has 5565 states and 9251 transitions. Word has length 112 [2024-11-07 01:07:43,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:07:43,863 INFO L471 AbstractCegarLoop]: Abstraction has 5565 states and 9251 transitions. [2024-11-07 01:07:43,864 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:43,864 INFO L276 IsEmpty]: Start isEmpty. Operand 5565 states and 9251 transitions. [2024-11-07 01:07:43,869 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 01:07:43,869 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:07:43,869 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:07:43,869 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-07 01:07:43,869 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:07:43,870 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:07:43,870 INFO L85 PathProgramCache]: Analyzing trace with hash -1810961881, now seen corresponding path program 1 times [2024-11-07 01:07:43,870 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:07:43,870 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1082099564] [2024-11-07 01:07:43,870 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:07:43,871 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:07:43,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:44,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:07:44,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:44,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:07:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:44,245 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:07:44,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:44,273 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:07:44,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:44,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:07:44,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:44,296 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:07:44,296 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:07:44,296 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1082099564] [2024-11-07 01:07:44,296 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1082099564] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:07:44,297 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:07:44,297 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:07:44,297 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1341367091] [2024-11-07 01:07:44,297 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:07:44,297 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:07:44,297 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:07:44,298 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:07:44,302 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:07:44,302 INFO L87 Difference]: Start difference. First operand 5565 states and 9251 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:46,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:07:46,297 INFO L93 Difference]: Finished difference Result 14420 states and 23163 transitions. [2024-11-07 01:07:46,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:07:46,298 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-07 01:07:46,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:07:46,363 INFO L225 Difference]: With dead ends: 14420 [2024-11-07 01:07:46,363 INFO L226 Difference]: Without dead ends: 10992 [2024-11-07 01:07:46,379 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:07:46,379 INFO L432 NwaCegarLoop]: 4307 mSDtfsCounter, 4796 mSDsluCounter, 17001 mSDsCounter, 0 mSdLazyCounter, 2065 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 21308 SdHoareTripleChecker+Invalid, 2121 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2065 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:07:46,380 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 21308 Invalid, 2121 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [56 Valid, 2065 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:07:46,391 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10992 states. [2024-11-07 01:07:46,786 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10992 to 8991. [2024-11-07 01:07:46,804 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8991 states, 8278 states have (on average 1.6071514858661513) internal successors, (13304), 8312 states have internal predecessors, (13304), 487 states have call successors, (487), 192 states have call predecessors, (487), 224 states have return successors, (794), 518 states have call predecessors, (794), 487 states have call successors, (794) [2024-11-07 01:07:46,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8991 states to 8991 states and 14585 transitions. [2024-11-07 01:07:46,830 INFO L78 Accepts]: Start accepts. Automaton has 8991 states and 14585 transitions. Word has length 112 [2024-11-07 01:07:46,830 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:07:46,830 INFO L471 AbstractCegarLoop]: Abstraction has 8991 states and 14585 transitions. [2024-11-07 01:07:46,831 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:46,831 INFO L276 IsEmpty]: Start isEmpty. Operand 8991 states and 14585 transitions. [2024-11-07 01:07:46,839 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 01:07:46,839 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:07:46,839 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:07:46,839 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-07 01:07:46,840 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:07:46,840 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:07:46,840 INFO L85 PathProgramCache]: Analyzing trace with hash 66101349, now seen corresponding path program 1 times [2024-11-07 01:07:46,840 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:07:46,840 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771441479] [2024-11-07 01:07:46,841 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:07:46,841 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:07:46,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:46,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:07:46,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:46,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:07:46,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:46,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:07:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:47,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:07:47,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:47,011 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:07:47,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:47,017 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:07:47,017 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:07:47,017 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771441479] [2024-11-07 01:07:47,017 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771441479] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:07:47,017 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:07:47,018 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:07:47,018 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2011697488] [2024-11-07 01:07:47,018 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:07:47,019 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:07:47,019 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:07:47,019 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:07:47,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:07:47,020 INFO L87 Difference]: Start difference. First operand 8991 states and 14585 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:49,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:07:49,269 INFO L93 Difference]: Finished difference Result 26614 states and 42455 transitions. [2024-11-07 01:07:49,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-07 01:07:49,270 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-07 01:07:49,270 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:07:49,358 INFO L225 Difference]: With dead ends: 26614 [2024-11-07 01:07:49,359 INFO L226 Difference]: Without dead ends: 19760 [2024-11-07 01:07:49,387 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-07 01:07:49,388 INFO L432 NwaCegarLoop]: 4307 mSDtfsCounter, 4796 mSDsluCounter, 17001 mSDsCounter, 0 mSdLazyCounter, 2056 mSolverCounterSat, 56 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4809 SdHoareTripleChecker+Valid, 21308 SdHoareTripleChecker+Invalid, 2112 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 56 IncrementalHoareTripleChecker+Valid, 2056 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:07:49,389 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4809 Valid, 21308 Invalid, 2112 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [56 Valid, 2056 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-07 01:07:49,417 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19760 states. [2024-11-07 01:07:50,389 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19760 to 15873. [2024-11-07 01:07:50,424 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 15873 states, 14456 states have (on average 1.5680686220254565) internal successors, (22668), 14522 states have internal predecessors, (22668), 967 states have call successors, (967), 384 states have call predecessors, (967), 448 states have return successors, (1824), 1030 states have call predecessors, (1824), 967 states have call successors, (1824) [2024-11-07 01:07:50,467 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15873 states to 15873 states and 25459 transitions. [2024-11-07 01:07:50,475 INFO L78 Accepts]: Start accepts. Automaton has 15873 states and 25459 transitions. Word has length 112 [2024-11-07 01:07:50,476 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:07:50,476 INFO L471 AbstractCegarLoop]: Abstraction has 15873 states and 25459 transitions. [2024-11-07 01:07:50,477 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:50,477 INFO L276 IsEmpty]: Start isEmpty. Operand 15873 states and 25459 transitions. [2024-11-07 01:07:50,490 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 01:07:50,491 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:07:50,492 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:07:50,492 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-07 01:07:50,492 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:07:50,493 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:07:50,493 INFO L85 PathProgramCache]: Analyzing trace with hash -704632217, now seen corresponding path program 1 times [2024-11-07 01:07:50,493 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:07:50,494 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1070750715] [2024-11-07 01:07:50,494 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:07:50,494 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:07:50,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:50,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:07:50,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:50,599 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:07:50,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:50,647 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:07:50,651 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:50,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:07:50,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:50,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:07:50,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:50,666 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:07:50,666 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:07:50,666 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1070750715] [2024-11-07 01:07:50,666 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1070750715] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:07:50,666 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:07:50,667 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:07:50,667 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1590765871] [2024-11-07 01:07:50,667 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:07:50,667 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:07:50,667 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:07:50,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:07:50,667 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:07:50,668 INFO L87 Difference]: Start difference. First operand 15873 states and 25459 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:53,965 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:07:53,966 INFO L93 Difference]: Finished difference Result 56952 states and 90597 transitions. [2024-11-07 01:07:53,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:07:53,967 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-07 01:07:53,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:07:54,142 INFO L225 Difference]: With dead ends: 56952 [2024-11-07 01:07:54,142 INFO L226 Difference]: Without dead ends: 43216 [2024-11-07 01:07:54,191 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:07:54,192 INFO L432 NwaCegarLoop]: 4304 mSDtfsCounter, 5054 mSDsluCounter, 16993 mSDsCounter, 0 mSdLazyCounter, 2030 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5074 SdHoareTripleChecker+Valid, 21297 SdHoareTripleChecker+Invalid, 2089 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 2030 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-11-07 01:07:54,192 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5074 Valid, 21297 Invalid, 2089 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 2030 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-11-07 01:07:54,217 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43216 states. [2024-11-07 01:07:56,009 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43216 to 29507. [2024-11-07 01:07:56,046 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29507 states, 26746 states have (on average 1.546399461601735) internal successors, (41360), 26876 states have internal predecessors, (41360), 1863 states have call successors, (1863), 768 states have call predecessors, (1863), 896 states have return successors, (4306), 1990 states have call predecessors, (4306), 1863 states have call successors, (4306) [2024-11-07 01:07:56,158 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29507 states to 29507 states and 47529 transitions. [2024-11-07 01:07:56,170 INFO L78 Accepts]: Start accepts. Automaton has 29507 states and 47529 transitions. Word has length 112 [2024-11-07 01:07:56,170 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:07:56,170 INFO L471 AbstractCegarLoop]: Abstraction has 29507 states and 47529 transitions. [2024-11-07 01:07:56,170 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:07:56,171 INFO L276 IsEmpty]: Start isEmpty. Operand 29507 states and 47529 transitions. [2024-11-07 01:07:56,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 01:07:56,196 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:07:56,196 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:07:56,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-07 01:07:56,197 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:07:56,197 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:07:56,197 INFO L85 PathProgramCache]: Analyzing trace with hash -1699325915, now seen corresponding path program 1 times [2024-11-07 01:07:56,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:07:56,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [991519216] [2024-11-07 01:07:56,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:07:56,198 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:07:56,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:56,286 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:07:56,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:56,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:07:56,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:56,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:07:56,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:56,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:07:56,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:56,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:07:56,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:07:56,396 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:07:56,397 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:07:56,397 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [991519216] [2024-11-07 01:07:56,397 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [991519216] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:07:56,397 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:07:56,397 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:07:56,397 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [640244] [2024-11-07 01:07:56,397 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:07:56,398 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:07:56,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:07:56,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:07:56,399 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:07:56,399 INFO L87 Difference]: Start difference. First operand 29507 states and 47529 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:08:00,726 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:08:00,726 INFO L93 Difference]: Finished difference Result 107773 states and 173881 transitions. [2024-11-07 01:08:00,727 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:08:00,727 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-07 01:08:00,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:08:01,145 INFO L225 Difference]: With dead ends: 107773 [2024-11-07 01:08:01,146 INFO L226 Difference]: Without dead ends: 80403 [2024-11-07 01:08:01,249 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:08:01,251 INFO L432 NwaCegarLoop]: 4303 mSDtfsCounter, 4989 mSDsluCounter, 16993 mSDsCounter, 0 mSdLazyCounter, 1970 mSolverCounterSat, 59 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5009 SdHoareTripleChecker+Valid, 21296 SdHoareTripleChecker+Invalid, 2029 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 59 IncrementalHoareTripleChecker+Valid, 1970 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.3s IncrementalHoareTripleChecker+Time [2024-11-07 01:08:01,251 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5009 Valid, 21296 Invalid, 2029 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [59 Valid, 1970 Invalid, 0 Unknown, 0 Unchecked, 1.3s Time] [2024-11-07 01:08:01,297 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 80403 states. [2024-11-07 01:08:04,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 80403 to 56837. [2024-11-07 01:08:04,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56837 states, 51452 states have (on average 1.536577781232994) internal successors, (79060), 51710 states have internal predecessors, (79060), 3591 states have call successors, (3591), 1536 states have call predecessors, (3591), 1792 states have return successors, (10664), 3846 states have call predecessors, (10664), 3591 states have call successors, (10664) [2024-11-07 01:08:04,831 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56837 states to 56837 states and 93315 transitions. [2024-11-07 01:08:04,846 INFO L78 Accepts]: Start accepts. Automaton has 56837 states and 93315 transitions. Word has length 112 [2024-11-07 01:08:04,847 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-07 01:08:04,847 INFO L471 AbstractCegarLoop]: Abstraction has 56837 states and 93315 transitions. [2024-11-07 01:08:04,847 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:08:04,847 INFO L276 IsEmpty]: Start isEmpty. Operand 56837 states and 93315 transitions. [2024-11-07 01:08:04,885 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 113 [2024-11-07 01:08:04,886 INFO L207 NwaCegarLoop]: Found error trace [2024-11-07 01:08:04,886 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-07 01:08:04,886 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-07 01:08:04,886 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-07 01:08:04,886 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-07 01:08:04,887 INFO L85 PathProgramCache]: Analyzing trace with hash 637066595, now seen corresponding path program 1 times [2024-11-07 01:08:04,887 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-07 01:08:04,887 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [267761273] [2024-11-07 01:08:04,887 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-07 01:08:04,887 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-07 01:08:04,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:08:04,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-07 01:08:04,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:08:04,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2024-11-07 01:08:04,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:08:05,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-07 01:08:05,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:08:05,044 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-11-07 01:08:05,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:08:05,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-07 01:08:05,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-07 01:08:05,051 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-07 01:08:05,051 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-07 01:08:05,051 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [267761273] [2024-11-07 01:08:05,051 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [267761273] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-07 01:08:05,051 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-07 01:08:05,051 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-07 01:08:05,051 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [690260174] [2024-11-07 01:08:05,052 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-07 01:08:05,052 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-07 01:08:05,052 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-07 01:08:05,052 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-07 01:08:05,052 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-07 01:08:05,053 INFO L87 Difference]: Start difference. First operand 56837 states and 93315 transitions. Second operand has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-07 01:08:13,169 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-07 01:08:13,170 INFO L93 Difference]: Finished difference Result 208707 states and 345053 transitions. [2024-11-07 01:08:13,170 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-11-07 01:08:13,170 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 14.571428571428571) internal successors, (102), 5 states have internal predecessors, (102), 2 states have call successors, (5), 3 states have call predecessors, (5), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 112 [2024-11-07 01:08:13,170 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-07 01:08:13,854 INFO L225 Difference]: With dead ends: 208707 [2024-11-07 01:08:13,854 INFO L226 Difference]: Without dead ends: 154007 [2024-11-07 01:08:13,993 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-11-07 01:08:13,993 INFO L432 NwaCegarLoop]: 4268 mSDtfsCounter, 4962 mSDsluCounter, 16933 mSDsCounter, 0 mSdLazyCounter, 1837 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4982 SdHoareTripleChecker+Valid, 21201 SdHoareTripleChecker+Invalid, 1904 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1837 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.4s IncrementalHoareTripleChecker+Time [2024-11-07 01:08:13,993 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4982 Valid, 21201 Invalid, 1904 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1837 Invalid, 0 Unknown, 0 Unchecked, 1.4s Time] [2024-11-07 01:08:14,091 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154007 states.