./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version fca748b1 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-1.c -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/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 baa3d7d596cfacd752b448b2d94171196ab29c96dae98d968ce044a2cc25c48f --- Real Ultimate output --- This is Ultimate 0.2.5-wip.dd.update-z3-fca748b-m [2024-11-19 23:32:51,558 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-19 23:32:51,606 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-19 23:32:51,609 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-19 23:32:51,610 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-19 23:32:51,637 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-19 23:32:51,638 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-19 23:32:51,638 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-19 23:32:51,638 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-19 23:32:51,638 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-19 23:32:51,639 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-19 23:32:51,639 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-19 23:32:51,639 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-19 23:32:51,640 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-19 23:32:51,640 INFO L153 SettingsManager]: * Use SBE=true [2024-11-19 23:32:51,641 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-19 23:32:51,642 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-19 23:32:51,644 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-19 23:32:51,644 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-19 23:32:51,644 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-19 23:32:51,644 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-19 23:32:51,645 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-19 23:32:51,645 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-19 23:32:51,645 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-19 23:32:51,645 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-19 23:32:51,647 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-19 23:32:51,647 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-19 23:32:51,647 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-19 23:32:51,648 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-11-19 23:32:51,648 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-19 23:32:51,648 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-19 23:32:51,648 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-19 23:32:51,648 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:32:51,649 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-19 23:32:51,649 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-19 23:32:51,649 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-19 23:32:51,650 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-19 23:32:51,650 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-19 23:32:51,650 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-19 23:32:51,650 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-19 23:32:51,651 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-19 23:32:51,651 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-19 23:32:51,651 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> baa3d7d596cfacd752b448b2d94171196ab29c96dae98d968ce044a2cc25c48f [2024-11-19 23:32:51,844 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-19 23:32:51,862 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-19 23:32:51,864 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-19 23:32:51,865 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-19 23:32:51,865 INFO L274 PluginConnector]: CDTParser initialized [2024-11-19 23:32:51,866 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-1.c [2024-11-19 23:32:53,070 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-19 23:32:53,529 INFO L384 CDTParser]: Found 1 translation units. [2024-11-19 23:32:53,530 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-1.c [2024-11-19 23:32:53,576 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35a2084d5/e2ca4367036241e6ae55b915bb6f6162/FLAGd7045fe90 [2024-11-19 23:32:53,647 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/35a2084d5/e2ca4367036241e6ae55b915bb6f6162 [2024-11-19 23:32:53,649 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-19 23:32:53,650 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-19 23:32:53,651 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-19 23:32:53,651 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-19 23:32:53,655 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-19 23:32:53,655 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:32:53" (1/1) ... [2024-11-19 23:32:53,656 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3125f94f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:53, skipping insertion in model container [2024-11-19 23:32:53,656 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.11 11:32:53" (1/1) ... [2024-11-19 23:32:53,819 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-19 23:32:54,995 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-1.c[380593,380606] [2024-11-19 23:32:55,017 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-1.c[383339,383352] [2024-11-19 23:32:55,194 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:32:55,204 INFO L200 MainTranslator]: Completed pre-run [2024-11-19 23:32:55,737 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-1.c[380593,380606] [2024-11-19 23:32:55,744 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label49+token_ring.11.cil-1.c[383339,383352] [2024-11-19 23:32:55,762 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-19 23:32:55,803 INFO L204 MainTranslator]: Completed translation [2024-11-19 23:32:55,804 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55 WrapperNode [2024-11-19 23:32:55,804 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-19 23:32:55,805 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-19 23:32:55,805 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-19 23:32:55,805 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-19 23:32:55,809 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55" (1/1) ... [2024-11-19 23:32:55,864 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55" (1/1) ... [2024-11-19 23:32:56,095 INFO L138 Inliner]: procedures = 66, calls = 75, calls flagged for inlining = 43, calls inlined = 43, statements flattened = 13179 [2024-11-19 23:32:56,095 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-19 23:32:56,096 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-19 23:32:56,096 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-19 23:32:56,096 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-19 23:32:56,104 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55" (1/1) ... [2024-11-19 23:32:56,105 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55" (1/1) ... [2024-11-19 23:32:56,145 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55" (1/1) ... [2024-11-19 23:32:56,213 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]. [2024-11-19 23:32:56,213 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55" (1/1) ... [2024-11-19 23:32:56,213 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55" (1/1) ... [2024-11-19 23:32:56,399 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55" (1/1) ... [2024-11-19 23:32:56,446 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55" (1/1) ... [2024-11-19 23:32:56,469 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55" (1/1) ... [2024-11-19 23:32:56,490 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55" (1/1) ... [2024-11-19 23:32:56,544 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-19 23:32:56,545 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-11-19 23:32:56,546 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-11-19 23:32:56,546 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-11-19 23:32:56,547 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55" (1/1) ... [2024-11-19 23:32:56,552 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-19 23:32:56,562 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-19 23:32:56,579 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-19 23:32:56,581 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-19 23:32:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-19 23:32:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-11-19 23:32:56,691 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-11-19 23:32:56,691 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-11-19 23:32:56,692 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-11-19 23:32:56,692 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-11-19 23:32:56,692 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-11-19 23:32:56,692 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-11-19 23:32:56,692 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-11-19 23:32:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-11-19 23:32:56,693 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-11-19 23:32:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-11-19 23:32:56,693 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-11-19 23:32:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-11-19 23:32:56,693 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-11-19 23:32:56,693 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-19 23:32:56,694 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-19 23:32:56,694 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-19 23:32:56,787 INFO L238 CfgBuilder]: Building ICFG [2024-11-19 23:32:56,788 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-19 23:33:02,561 INFO L? ?]: Removed 1753 outVars from TransFormulas that were not future-live. [2024-11-19 23:33:02,561 INFO L287 CfgBuilder]: Performing block encoding [2024-11-19 23:33:02,615 INFO L311 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-19 23:33:02,615 INFO L316 CfgBuilder]: Removed 15 assume(true) statements. [2024-11-19 23:33:02,616 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:33:02 BoogieIcfgContainer [2024-11-19 23:33:02,616 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-11-19 23:33:02,618 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-19 23:33:02,618 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-19 23:33:02,621 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-19 23:33:02,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.11 11:32:53" (1/3) ... [2024-11-19 23:33:02,621 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23358222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:33:02, skipping insertion in model container [2024-11-19 23:33:02,621 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.11 11:32:55" (2/3) ... [2024-11-19 23:33:02,622 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@23358222 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.11 11:33:02, skipping insertion in model container [2024-11-19 23:33:02,622 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.11 11:33:02" (3/3) ... [2024-11-19 23:33:02,623 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label49+token_ring.11.cil-1.c [2024-11-19 23:33:02,634 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-19 23:33:02,635 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-11-19 23:33:02,711 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-19 23:33:02,716 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;@4267487a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-19 23:33:02,717 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-11-19 23:33:02,732 INFO L276 IsEmpty]: Start isEmpty. Operand has 2560 states, 2523 states have (on average 1.840665873959572) internal successors, (4644), 2528 states have internal predecessors, (4644), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) [2024-11-19 23:33:02,747 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 23:33:02,747 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:02,748 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:02,748 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:02,752 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:02,752 INFO L85 PathProgramCache]: Analyzing trace with hash -1643265123, now seen corresponding path program 1 times [2024-11-19 23:33:02,759 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:02,759 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2007079050] [2024-11-19 23:33:02,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:02,760 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:03,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:03,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:03,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:33:03,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:03,186 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 23:33:03,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:03,221 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 23:33:03,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:03,238 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-19 23:33:03,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:03,241 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:03,242 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:03,242 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2007079050] [2024-11-19 23:33:03,242 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2007079050] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:03,243 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:03,243 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-11-19 23:33:03,246 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1750546854] [2024-11-19 23:33:03,246 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:03,249 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-11-19 23:33:03,250 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:03,268 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-11-19 23:33:03,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-11-19 23:33:03,274 INFO L87 Difference]: Start difference. First operand has 2560 states, 2523 states have (on average 1.840665873959572) internal successors, (4644), 2528 states have internal predecessors, (4644), 27 states have call successors, (27), 7 states have call predecessors, (27), 7 states have return successors, (27), 26 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:04,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:04,771 INFO L93 Difference]: Finished difference Result 5238 states and 9599 transitions. [2024-11-19 23:33:04,772 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-11-19 23:33:04,773 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-19 23:33:04,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:04,798 INFO L225 Difference]: With dead ends: 5238 [2024-11-19 23:33:04,798 INFO L226 Difference]: Without dead ends: 2623 [2024-11-19 23:33:04,808 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-11-19 23:33:04,813 INFO L432 NwaCegarLoop]: 4371 mSDtfsCounter, 983 mSDsluCounter, 12481 mSDsCounter, 0 mSdLazyCounter, 960 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1006 SdHoareTripleChecker+Valid, 16852 SdHoareTripleChecker+Invalid, 1018 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 960 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:04,814 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [1006 Valid, 16852 Invalid, 1018 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 960 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-11-19 23:33:04,832 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2623 states. [2024-11-19 23:33:04,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2623 to 2492. [2024-11-19 23:33:04,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2492 states, 2457 states have (on average 1.8245828245828246) internal successors, (4483), 2460 states have internal predecessors, (4483), 27 states have call successors, (27), 7 states have call predecessors, (27), 6 states have return successors, (25), 25 states have call predecessors, (25), 25 states have call successors, (25) [2024-11-19 23:33:04,921 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2492 states to 2492 states and 4535 transitions. [2024-11-19 23:33:04,923 INFO L78 Accepts]: Start accepts. Automaton has 2492 states and 4535 transitions. Word has length 168 [2024-11-19 23:33:04,924 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:04,924 INFO L471 AbstractCegarLoop]: Abstraction has 2492 states and 4535 transitions. [2024-11-19 23:33:04,924 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 31.4) internal successors, (157), 3 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 1 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:04,924 INFO L276 IsEmpty]: Start isEmpty. Operand 2492 states and 4535 transitions. [2024-11-19 23:33:04,927 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 23:33:04,927 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:04,928 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:04,928 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-19 23:33:04,928 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:04,928 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:04,929 INFO L85 PathProgramCache]: Analyzing trace with hash -238073445, now seen corresponding path program 1 times [2024-11-19 23:33:04,929 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:04,929 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [948041358] [2024-11-19 23:33:04,929 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:04,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:04,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:05,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:05,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:05,103 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:33:05,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:05,158 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 23:33:05,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:05,185 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 23:33:05,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:05,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-19 23:33:05,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:05,202 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:05,203 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:05,203 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [948041358] [2024-11-19 23:33:05,203 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [948041358] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:05,204 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:05,204 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-11-19 23:33:05,204 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69407118] [2024-11-19 23:33:05,204 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:05,205 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-11-19 23:33:05,205 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:05,205 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-11-19 23:33:05,206 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-11-19 23:33:05,206 INFO L87 Difference]: Start difference. First operand 2492 states and 4535 transitions. Second operand has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:07,596 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:07,597 INFO L93 Difference]: Finished difference Result 3474 states and 6110 transitions. [2024-11-19 23:33:07,597 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-11-19 23:33:07,597 INFO L78 Accepts]: Start accepts. Automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-19 23:33:07,598 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:07,611 INFO L225 Difference]: With dead ends: 3474 [2024-11-19 23:33:07,611 INFO L226 Difference]: Without dead ends: 3122 [2024-11-19 23:33:07,613 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2024-11-19 23:33:07,614 INFO L432 NwaCegarLoop]: 4274 mSDtfsCounter, 5431 mSDsluCounter, 12841 mSDsCounter, 0 mSdLazyCounter, 2102 mSolverCounterSat, 112 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5449 SdHoareTripleChecker+Valid, 17115 SdHoareTripleChecker+Invalid, 2214 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 112 IncrementalHoareTripleChecker+Valid, 2102 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:07,615 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5449 Valid, 17115 Invalid, 2214 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [112 Valid, 2102 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 23:33:07,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3122 states. [2024-11-19 23:33:07,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3122 to 2859. [2024-11-19 23:33:07,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2859 states, 2797 states have (on average 1.794780121558813) internal successors, (5020), 2801 states have internal predecessors, (5020), 47 states have call successors, (47), 13 states have call predecessors, (47), 13 states have return successors, (48), 45 states have call predecessors, (48), 45 states have call successors, (48) [2024-11-19 23:33:07,704 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2859 states to 2859 states and 5115 transitions. [2024-11-19 23:33:07,706 INFO L78 Accepts]: Start accepts. Automaton has 2859 states and 5115 transitions. Word has length 168 [2024-11-19 23:33:07,707 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:07,708 INFO L471 AbstractCegarLoop]: Abstraction has 2859 states and 5115 transitions. [2024-11-19 23:33:07,709 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 26.166666666666668) internal successors, (157), 4 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:07,709 INFO L276 IsEmpty]: Start isEmpty. Operand 2859 states and 5115 transitions. [2024-11-19 23:33:07,713 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 23:33:07,714 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:07,715 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:07,715 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-11-19 23:33:07,715 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:07,716 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:07,716 INFO L85 PathProgramCache]: Analyzing trace with hash 684327063, now seen corresponding path program 1 times [2024-11-19 23:33:07,717 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:07,717 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256199159] [2024-11-19 23:33:07,718 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:07,718 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:07,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:07,886 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:07,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:07,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:33:07,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:08,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 23:33:08,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:08,049 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 23:33:08,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:08,058 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-19 23:33:08,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:08,060 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:08,060 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:08,061 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256199159] [2024-11-19 23:33:08,061 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256199159] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:08,061 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:08,061 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:08,061 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [533986986] [2024-11-19 23:33:08,061 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:08,062 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:08,062 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:08,063 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:08,063 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:08,063 INFO L87 Difference]: Start difference. First operand 2859 states and 5115 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:10,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:10,975 INFO L93 Difference]: Finished difference Result 4356 states and 7519 transitions. [2024-11-19 23:33:10,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:33:10,976 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-19 23:33:10,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:10,990 INFO L225 Difference]: With dead ends: 4356 [2024-11-19 23:33:10,990 INFO L226 Difference]: Without dead ends: 3637 [2024-11-19 23:33:10,995 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:33:10,997 INFO L432 NwaCegarLoop]: 4519 mSDtfsCounter, 5458 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3342 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5476 SdHoareTripleChecker+Valid, 22286 SdHoareTripleChecker+Invalid, 3405 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 3342 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:10,997 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5476 Valid, 22286 Invalid, 3405 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [63 Valid, 3342 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-19 23:33:11,001 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3637 states. [2024-11-19 23:33:11,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3637 to 3201. [2024-11-19 23:33:11,148 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3201 states, 3112 states have (on average 1.7696015424164524) internal successors, (5507), 3117 states have internal predecessors, (5507), 67 states have call successors, (67), 19 states have call predecessors, (67), 20 states have return successors, (70), 66 states have call predecessors, (70), 65 states have call successors, (70) [2024-11-19 23:33:11,154 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3201 states to 3201 states and 5644 transitions. [2024-11-19 23:33:11,154 INFO L78 Accepts]: Start accepts. Automaton has 3201 states and 5644 transitions. Word has length 168 [2024-11-19 23:33:11,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:11,155 INFO L471 AbstractCegarLoop]: Abstraction has 3201 states and 5644 transitions. [2024-11-19 23:33:11,155 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:11,155 INFO L276 IsEmpty]: Start isEmpty. Operand 3201 states and 5644 transitions. [2024-11-19 23:33:11,156 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 23:33:11,156 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:11,157 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:11,157 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-11-19 23:33:11,157 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:11,157 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:11,157 INFO L85 PathProgramCache]: Analyzing trace with hash -1713660775, now seen corresponding path program 1 times [2024-11-19 23:33:11,158 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:11,158 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235785396] [2024-11-19 23:33:11,158 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:11,158 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:11,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:11,246 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:11,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:11,297 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:33:11,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:11,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 23:33:11,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:11,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 23:33:11,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:11,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-19 23:33:11,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:11,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:11,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:11,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235785396] [2024-11-19 23:33:11,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235785396] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:11,365 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:11,365 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:11,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [926856103] [2024-11-19 23:33:11,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:11,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:11,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:11,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:11,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:11,367 INFO L87 Difference]: Start difference. First operand 3201 states and 5644 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:13,985 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:13,986 INFO L93 Difference]: Finished difference Result 5657 states and 9580 transitions. [2024-11-19 23:33:13,986 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:33:13,986 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-19 23:33:13,986 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:14,002 INFO L225 Difference]: With dead ends: 5657 [2024-11-19 23:33:14,002 INFO L226 Difference]: Without dead ends: 4596 [2024-11-19 23:33:14,005 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:33:14,006 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5456 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3338 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5474 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3403 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3338 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:14,006 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5474 Valid, 22284 Invalid, 3403 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3338 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 23:33:14,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4596 states. [2024-11-19 23:33:14,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4596 to 3886. [2024-11-19 23:33:14,102 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3886 states, 3743 states have (on average 1.7317659631311781) internal successors, (6482), 3750 states have internal predecessors, (6482), 107 states have call successors, (107), 31 states have call predecessors, (107), 34 states have return successors, (118), 108 states have call predecessors, (118), 105 states have call successors, (118) [2024-11-19 23:33:14,110 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3886 states to 3886 states and 6707 transitions. [2024-11-19 23:33:14,111 INFO L78 Accepts]: Start accepts. Automaton has 3886 states and 6707 transitions. Word has length 168 [2024-11-19 23:33:14,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:14,111 INFO L471 AbstractCegarLoop]: Abstraction has 3886 states and 6707 transitions. [2024-11-19 23:33:14,111 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:14,111 INFO L276 IsEmpty]: Start isEmpty. Operand 3886 states and 6707 transitions. [2024-11-19 23:33:14,113 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 23:33:14,113 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:14,113 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:14,113 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-11-19 23:33:14,114 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:14,114 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:14,114 INFO L85 PathProgramCache]: Analyzing trace with hash -1375373225, now seen corresponding path program 1 times [2024-11-19 23:33:14,114 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:14,115 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210696685] [2024-11-19 23:33:14,115 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:14,115 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:14,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:14,196 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:14,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:14,247 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:33:14,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:14,298 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 23:33:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:14,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 23:33:14,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:14,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-19 23:33:14,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:14,323 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:14,323 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:14,324 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210696685] [2024-11-19 23:33:14,324 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210696685] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:14,324 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:14,325 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:14,325 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [188413047] [2024-11-19 23:33:14,326 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:14,326 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:14,326 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:14,326 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:14,328 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:14,328 INFO L87 Difference]: Start difference. First operand 3886 states and 6707 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:17,006 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:17,006 INFO L93 Difference]: Finished difference Result 8162 states and 13523 transitions. [2024-11-19 23:33:17,007 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:33:17,007 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-19 23:33:17,007 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:17,030 INFO L225 Difference]: With dead ends: 8162 [2024-11-19 23:33:17,030 INFO L226 Difference]: Without dead ends: 6416 [2024-11-19 23:33:17,037 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:33:17,038 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5452 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3329 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5470 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3394 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3329 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:17,038 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5470 Valid, 22284 Invalid, 3394 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3329 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 23:33:17,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6416 states. [2024-11-19 23:33:17,171 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6416 to 5257. [2024-11-19 23:33:17,180 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5257 states, 5006 states have (on average 1.6843787455053936) internal successors, (8432), 5017 states have internal predecessors, (8432), 187 states have call successors, (187), 55 states have call predecessors, (187), 62 states have return successors, (220), 192 states have call predecessors, (220), 185 states have call successors, (220) [2024-11-19 23:33:17,190 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5257 states to 5257 states and 8839 transitions. [2024-11-19 23:33:17,191 INFO L78 Accepts]: Start accepts. Automaton has 5257 states and 8839 transitions. Word has length 168 [2024-11-19 23:33:17,191 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:17,191 INFO L471 AbstractCegarLoop]: Abstraction has 5257 states and 8839 transitions. [2024-11-19 23:33:17,195 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:17,196 INFO L276 IsEmpty]: Start isEmpty. Operand 5257 states and 8839 transitions. [2024-11-19 23:33:17,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 23:33:17,198 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:17,198 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:17,198 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-11-19 23:33:17,199 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:17,199 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:17,199 INFO L85 PathProgramCache]: Analyzing trace with hash -948818727, now seen corresponding path program 1 times [2024-11-19 23:33:17,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:17,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [40160781] [2024-11-19 23:33:17,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:17,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:17,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:17,278 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:17,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:17,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:33:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:17,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 23:33:17,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:17,396 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 23:33:17,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:17,402 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-19 23:33:17,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:17,408 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:17,412 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:17,412 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [40160781] [2024-11-19 23:33:17,412 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [40160781] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:17,412 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:17,412 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:17,412 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [91490799] [2024-11-19 23:33:17,412 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:17,413 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:17,413 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:17,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:17,413 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:17,414 INFO L87 Difference]: Start difference. First operand 5257 states and 8839 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:20,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:20,349 INFO L93 Difference]: Finished difference Result 13171 states and 21425 transitions. [2024-11-19 23:33:20,350 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:33:20,350 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-19 23:33:20,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:20,387 INFO L225 Difference]: With dead ends: 13171 [2024-11-19 23:33:20,388 INFO L226 Difference]: Without dead ends: 10054 [2024-11-19 23:33:20,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:33:20,401 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5448 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3320 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5466 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3385 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3320 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 2.1s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:20,402 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5466 Valid, 22284 Invalid, 3385 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3320 Invalid, 0 Unknown, 0 Unchecked, 2.1s Time] [2024-11-19 23:33:20,412 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 10054 states. [2024-11-19 23:33:20,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 10054 to 8004. [2024-11-19 23:33:20,657 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8004 states, 7537 states have (on average 1.6369908451638584) internal successors, (12338), 7556 states have internal predecessors, (12338), 347 states have call successors, (347), 103 states have call predecessors, (347), 118 states have return successors, (442), 360 states have call predecessors, (442), 345 states have call successors, (442) [2024-11-19 23:33:20,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8004 states to 8004 states and 13127 transitions. [2024-11-19 23:33:20,819 INFO L78 Accepts]: Start accepts. Automaton has 8004 states and 13127 transitions. Word has length 168 [2024-11-19 23:33:20,819 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:20,819 INFO L471 AbstractCegarLoop]: Abstraction has 8004 states and 13127 transitions. [2024-11-19 23:33:20,820 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:20,820 INFO L276 IsEmpty]: Start isEmpty. Operand 8004 states and 13127 transitions. [2024-11-19 23:33:20,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 23:33:20,824 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:20,824 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:20,824 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-11-19 23:33:20,824 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:20,825 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:20,825 INFO L85 PathProgramCache]: Analyzing trace with hash -1489248233, now seen corresponding path program 1 times [2024-11-19 23:33:20,825 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:20,826 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1378693575] [2024-11-19 23:33:20,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:20,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:20,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:20,912 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:20,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:20,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:33:20,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:21,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 23:33:21,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:21,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 23:33:21,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:21,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-19 23:33:21,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:21,055 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:21,055 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:21,055 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1378693575] [2024-11-19 23:33:21,055 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1378693575] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:21,055 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:21,055 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:21,055 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1350573585] [2024-11-19 23:33:21,055 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:21,056 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:21,056 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:21,056 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:21,057 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:21,057 INFO L87 Difference]: Start difference. First operand 8004 states and 13127 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:24,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:24,203 INFO L93 Difference]: Finished difference Result 23188 states and 37287 transitions. [2024-11-19 23:33:24,204 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:33:24,204 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-19 23:33:24,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:24,241 INFO L225 Difference]: With dead ends: 23188 [2024-11-19 23:33:24,241 INFO L226 Difference]: Without dead ends: 17324 [2024-11-19 23:33:24,256 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:33:24,256 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5450 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3306 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5468 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3371 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3306 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:24,257 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5468 Valid, 22284 Invalid, 3371 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3306 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 23:33:24,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17324 states. [2024-11-19 23:33:24,652 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17324 to 13511. [2024-11-19 23:33:24,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13511 states, 12612 states have (on average 1.5991119568664764) internal successors, (20168), 12647 states have internal predecessors, (20168), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-11-19 23:33:24,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13511 states to 13511 states and 21775 transitions. [2024-11-19 23:33:24,693 INFO L78 Accepts]: Start accepts. Automaton has 13511 states and 21775 transitions. Word has length 168 [2024-11-19 23:33:24,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:24,693 INFO L471 AbstractCegarLoop]: Abstraction has 13511 states and 21775 transitions. [2024-11-19 23:33:24,693 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:24,694 INFO L276 IsEmpty]: Start isEmpty. Operand 13511 states and 21775 transitions. [2024-11-19 23:33:24,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 23:33:24,700 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:24,700 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:24,700 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-11-19 23:33:24,700 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:24,701 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:24,701 INFO L85 PathProgramCache]: Analyzing trace with hash -1645228775, now seen corresponding path program 1 times [2024-11-19 23:33:24,701 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:24,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1326046530] [2024-11-19 23:33:24,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:24,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:24,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:24,777 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:24,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:24,837 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:33:24,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:24,879 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 23:33:24,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:24,893 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 23:33:24,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:24,899 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-19 23:33:24,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:24,901 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:24,902 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:24,902 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1326046530] [2024-11-19 23:33:24,902 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1326046530] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:24,902 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:24,902 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:24,902 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1848707365] [2024-11-19 23:33:24,902 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:24,903 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:24,903 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:24,903 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:24,903 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:24,903 INFO L87 Difference]: Start difference. First operand 13511 states and 21775 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:26,607 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:26,608 INFO L93 Difference]: Finished difference Result 28900 states and 46552 transitions. [2024-11-19 23:33:26,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 23:33:26,608 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-19 23:33:26,608 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:26,649 INFO L225 Difference]: With dead ends: 28900 [2024-11-19 23:33:26,650 INFO L226 Difference]: Without dead ends: 17529 [2024-11-19 23:33:26,677 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-19 23:33:26,678 INFO L432 NwaCegarLoop]: 4259 mSDtfsCounter, 5043 mSDsluCounter, 16783 mSDsCounter, 0 mSdLazyCounter, 1676 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5062 SdHoareTripleChecker+Valid, 21042 SdHoareTripleChecker+Invalid, 1743 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1676 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:26,678 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5062 Valid, 21042 Invalid, 1743 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1676 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-11-19 23:33:26,689 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17529 states. [2024-11-19 23:33:27,081 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17529 to 13511. [2024-11-19 23:33:27,093 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 13511 states, 12612 states have (on average 1.5964954012052015) internal successors, (20135), 12647 states have internal predecessors, (20135), 667 states have call successors, (667), 199 states have call predecessors, (667), 230 states have return successors, (940), 696 states have call predecessors, (940), 665 states have call successors, (940) [2024-11-19 23:33:27,117 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 13511 states to 13511 states and 21742 transitions. [2024-11-19 23:33:27,121 INFO L78 Accepts]: Start accepts. Automaton has 13511 states and 21742 transitions. Word has length 168 [2024-11-19 23:33:27,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:27,122 INFO L471 AbstractCegarLoop]: Abstraction has 13511 states and 21742 transitions. [2024-11-19 23:33:27,122 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:27,122 INFO L276 IsEmpty]: Start isEmpty. Operand 13511 states and 21742 transitions. [2024-11-19 23:33:27,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 23:33:27,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:27,130 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:27,130 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-11-19 23:33:27,131 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:27,132 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:27,132 INFO L85 PathProgramCache]: Analyzing trace with hash 861868699, now seen corresponding path program 1 times [2024-11-19 23:33:27,132 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:27,132 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [931589844] [2024-11-19 23:33:27,132 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:27,132 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:27,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:27,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:27,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:27,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:33:27,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:27,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 23:33:27,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:27,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 23:33:27,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:27,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-19 23:33:27,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:27,334 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:27,335 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:27,335 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [931589844] [2024-11-19 23:33:27,335 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [931589844] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:27,335 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:27,335 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:27,335 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [361618271] [2024-11-19 23:33:27,335 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:27,336 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:27,336 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:27,336 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:27,337 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:27,337 INFO L87 Difference]: Start difference. First operand 13511 states and 21742 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:30,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:30,796 INFO L93 Difference]: Finished difference Result 43156 states and 68909 transitions. [2024-11-19 23:33:30,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:33:30,796 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-19 23:33:30,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:30,887 INFO L225 Difference]: With dead ends: 43156 [2024-11-19 23:33:30,887 INFO L226 Difference]: Without dead ends: 31785 [2024-11-19 23:33:30,918 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:33:30,919 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5439 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3253 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5457 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3318 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:30,919 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5457 Valid, 22284 Invalid, 3318 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3253 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 23:33:30,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31785 states. [2024-11-19 23:33:31,883 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31785 to 24620. [2024-11-19 23:33:31,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24620 states, 22857 states have (on average 1.570853567834799) internal successors, (35905), 22924 states have internal predecessors, (35905), 1307 states have call successors, (1307), 391 states have call predecessors, (1307), 454 states have return successors, (2098), 1368 states have call predecessors, (2098), 1305 states have call successors, (2098) [2024-11-19 23:33:31,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24620 states to 24620 states and 39310 transitions. [2024-11-19 23:33:31,964 INFO L78 Accepts]: Start accepts. Automaton has 24620 states and 39310 transitions. Word has length 168 [2024-11-19 23:33:31,964 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:31,964 INFO L471 AbstractCegarLoop]: Abstraction has 24620 states and 39310 transitions. [2024-11-19 23:33:31,965 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:31,965 INFO L276 IsEmpty]: Start isEmpty. Operand 24620 states and 39310 transitions. [2024-11-19 23:33:31,974 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 23:33:31,974 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:31,974 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:31,975 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-11-19 23:33:31,975 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:31,975 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:31,975 INFO L85 PathProgramCache]: Analyzing trace with hash -1274014503, now seen corresponding path program 1 times [2024-11-19 23:33:31,975 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:31,975 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1153957565] [2024-11-19 23:33:31,976 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:31,976 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:31,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:32,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:32,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:32,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:33:32,102 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:32,151 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 23:33:32,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:32,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 23:33:32,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:32,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-19 23:33:32,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:32,168 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:32,168 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:32,168 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1153957565] [2024-11-19 23:33:32,168 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1153957565] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:32,168 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:32,168 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:32,168 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1060854825] [2024-11-19 23:33:32,168 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:32,169 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:32,169 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:32,169 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:32,170 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:32,170 INFO L87 Difference]: Start difference. First operand 24620 states and 39310 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:36,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:36,400 INFO L93 Difference]: Finished difference Result 83227 states and 133155 transitions. [2024-11-19 23:33:36,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:33:36,401 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-19 23:33:36,401 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:36,580 INFO L225 Difference]: With dead ends: 83227 [2024-11-19 23:33:36,580 INFO L226 Difference]: Without dead ends: 60747 [2024-11-19 23:33:36,637 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:33:36,638 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5438 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3240 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5456 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3305 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3240 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.9s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:36,639 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5456 Valid, 22284 Invalid, 3305 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3240 Invalid, 0 Unknown, 0 Unchecked, 1.9s Time] [2024-11-19 23:33:36,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 60747 states. [2024-11-19 23:33:38,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 60747 to 46897. [2024-11-19 23:33:38,942 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 46897 states, 43406 states have (on average 1.555798737501728) internal successors, (67531), 43537 states have internal predecessors, (67531), 2587 states have call successors, (2587), 775 states have call predecessors, (2587), 902 states have return successors, (4900), 2712 states have call predecessors, (4900), 2585 states have call successors, (4900) [2024-11-19 23:33:39,071 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 46897 states to 46897 states and 75018 transitions. [2024-11-19 23:33:39,080 INFO L78 Accepts]: Start accepts. Automaton has 46897 states and 75018 transitions. Word has length 168 [2024-11-19 23:33:39,080 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:39,080 INFO L471 AbstractCegarLoop]: Abstraction has 46897 states and 75018 transitions. [2024-11-19 23:33:39,080 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:39,081 INFO L276 IsEmpty]: Start isEmpty. Operand 46897 states and 75018 transitions. [2024-11-19 23:33:39,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 23:33:39,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:39,100 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:39,100 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-11-19 23:33:39,100 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:39,101 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:39,101 INFO L85 PathProgramCache]: Analyzing trace with hash -1204366629, now seen corresponding path program 1 times [2024-11-19 23:33:39,101 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:39,101 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [204699747] [2024-11-19 23:33:39,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:39,101 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:39,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:39,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:39,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:39,226 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:33:39,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:39,275 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 23:33:39,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:39,285 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 23:33:39,288 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:39,290 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-19 23:33:39,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:39,292 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:39,292 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:39,292 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [204699747] [2024-11-19 23:33:39,292 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [204699747] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:39,292 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:39,292 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:39,293 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1690406378] [2024-11-19 23:33:39,293 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:39,293 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:39,293 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:39,293 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:39,294 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:39,294 INFO L87 Difference]: Start difference. First operand 46897 states and 75018 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:46,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:46,063 INFO L93 Difference]: Finished difference Result 163366 states and 263489 transitions. [2024-11-19 23:33:46,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-19 23:33:46,063 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-19 23:33:46,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:46,562 INFO L225 Difference]: With dead ends: 163366 [2024-11-19 23:33:46,563 INFO L226 Difference]: Without dead ends: 118609 [2024-11-19 23:33:46,652 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-11-19 23:33:46,653 INFO L432 NwaCegarLoop]: 4517 mSDtfsCounter, 5437 mSDsluCounter, 17767 mSDsCounter, 0 mSdLazyCounter, 3227 mSolverCounterSat, 65 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5455 SdHoareTripleChecker+Valid, 22284 SdHoareTripleChecker+Invalid, 3292 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 65 IncrementalHoareTripleChecker+Valid, 3227 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.8s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:46,653 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5455 Valid, 22284 Invalid, 3292 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [65 Valid, 3227 Invalid, 0 Unknown, 0 Unchecked, 1.8s Time] [2024-11-19 23:33:46,709 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 118609 states. [2024-11-19 23:33:50,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 118609 to 91578. [2024-11-19 23:33:50,913 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91578 states, 84631 states have (on average 1.5475771289480214) internal successors, (130973), 84890 states have internal predecessors, (130973), 5147 states have call successors, (5147), 1543 states have call predecessors, (5147), 1798 states have return successors, (11962), 5400 states have call predecessors, (11962), 5145 states have call successors, (11962) [2024-11-19 23:33:51,149 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91578 states to 91578 states and 148082 transitions. [2024-11-19 23:33:51,166 INFO L78 Accepts]: Start accepts. Automaton has 91578 states and 148082 transitions. Word has length 168 [2024-11-19 23:33:51,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-19 23:33:51,167 INFO L471 AbstractCegarLoop]: Abstraction has 91578 states and 148082 transitions. [2024-11-19 23:33:51,167 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:51,167 INFO L276 IsEmpty]: Start isEmpty. Operand 91578 states and 148082 transitions. [2024-11-19 23:33:51,200 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-11-19 23:33:51,200 INFO L207 NwaCegarLoop]: Found error trace [2024-11-19 23:33:51,200 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-19 23:33:51,200 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-11-19 23:33:51,200 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-19 23:33:51,201 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-19 23:33:51,201 INFO L85 PathProgramCache]: Analyzing trace with hash -786477927, now seen corresponding path program 1 times [2024-11-19 23:33:51,201 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-19 23:33:51,201 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [235746681] [2024-11-19 23:33:51,201 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-19 23:33:51,201 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-19 23:33:51,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:51,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-19 23:33:51,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:51,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 21 [2024-11-19 23:33:51,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:51,349 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2024-11-19 23:33:51,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:51,358 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2024-11-19 23:33:51,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:51,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2024-11-19 23:33:51,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-19 23:33:51,365 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-11-19 23:33:51,365 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-19 23:33:51,365 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [235746681] [2024-11-19 23:33:51,365 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [235746681] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-19 23:33:51,366 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-19 23:33:51,366 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-11-19 23:33:51,366 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1461147197] [2024-11-19 23:33:51,366 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-19 23:33:51,366 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-11-19 23:33:51,366 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-19 23:33:51,367 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-11-19 23:33:51,367 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-11-19 23:33:51,367 INFO L87 Difference]: Start difference. First operand 91578 states and 148082 transitions. Second operand has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-19 23:33:57,998 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-19 23:33:57,999 INFO L93 Difference]: Finished difference Result 209666 states and 345979 transitions. [2024-11-19 23:33:57,999 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-11-19 23:33:57,999 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 22.428571428571427) internal successors, (157), 5 states have internal predecessors, (157), 2 states have call successors, (6), 4 states have call predecessors, (6), 2 states have return successors, (5), 2 states have call predecessors, (5), 2 states have call successors, (5) Word has length 168 [2024-11-19 23:33:57,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-19 23:33:58,369 INFO L225 Difference]: With dead ends: 209666 [2024-11-19 23:33:58,369 INFO L226 Difference]: Without dead ends: 120228 [2024-11-19 23:33:58,545 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-11-19 23:33:58,550 INFO L432 NwaCegarLoop]: 4259 mSDtfsCounter, 5044 mSDsluCounter, 16783 mSDsCounter, 0 mSdLazyCounter, 1630 mSolverCounterSat, 67 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5063 SdHoareTripleChecker+Valid, 21042 SdHoareTripleChecker+Invalid, 1697 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 67 IncrementalHoareTripleChecker+Valid, 1630 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-11-19 23:33:58,550 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [5063 Valid, 21042 Invalid, 1697 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [67 Valid, 1630 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-11-19 23:33:58,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120228 states.