./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_label45+token_ring.06.cil-1.c --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 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_label45+token_ring.06.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 a9f893ab935631e26843412fbbbf983c2aeac51b5ea91d56e5f6804258a66568 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 02:18:49,795 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 02:18:49,848 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 02:18:49,853 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 02:18:49,853 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 02:18:49,877 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 02:18:49,878 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 02:18:49,878 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 02:18:49,878 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 02:18:49,879 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 02:18:49,879 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 02:18:49,879 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 02:18:49,879 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 02:18:49,880 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 02:18:49,880 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 02:18:49,881 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 02:18:49,882 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 02:18:49,884 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 02:18:49,884 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 02:18:49,884 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 02:18:49,884 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 02:18:49,885 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 02:18:49,885 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 02:18:49,885 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 02:18:49,885 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 02:18:49,885 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 02:18:49,885 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 02:18:49,885 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 02:18:49,886 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 02:18:49,886 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 02:18:49,886 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 02:18:49,886 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 02:18:49,886 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:18:49,887 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 02:18:49,887 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 02:18:49,887 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 02:18:49,887 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 02:18:49,887 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 02:18:49,887 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 02:18:49,887 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 02:18:49,888 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 02:18:49,889 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 02:18:49,889 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a9f893ab935631e26843412fbbbf983c2aeac51b5ea91d56e5f6804258a66568 [2024-10-24 02:18:50,120 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 02:18:50,145 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 02:18:50,148 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 02:18:50,148 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 02:18:50,149 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 02:18:50,150 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.06.cil-1.c [2024-10-24 02:18:51,425 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 02:18:51,848 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 02:18:51,848 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/combinations/Problem05_label45+token_ring.06.cil-1.c [2024-10-24 02:18:51,896 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8c1bd4d/1ca13b57d0c04e86acb01e107e4e5b59/FLAG9c2f3cd8b [2024-10-24 02:18:51,909 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/8d8c1bd4d/1ca13b57d0c04e86acb01e107e4e5b59 [2024-10-24 02:18:51,911 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 02:18:51,912 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 02:18:51,914 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 02:18:51,915 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 02:18:51,918 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 02:18:51,919 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:18:51" (1/1) ... [2024-10-24 02:18:51,921 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7628b954 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:51, skipping insertion in model container [2024-10-24 02:18:51,921 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 02:18:51" (1/1) ... [2024-10-24 02:18:52,050 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 02:18:53,225 WARN L248 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_label45+token_ring.06.cil-1.c[380323,380336] [2024-10-24 02:18:53,249 WARN L248 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_label45+token_ring.06.cil-1.c[383339,383352] [2024-10-24 02:18:53,383 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:18:53,391 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 02:18:53,956 WARN L248 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_label45+token_ring.06.cil-1.c[380323,380336] [2024-10-24 02:18:53,964 WARN L248 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_label45+token_ring.06.cil-1.c[383339,383352] [2024-10-24 02:18:53,977 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 02:18:54,021 INFO L204 MainTranslator]: Completed translation [2024-10-24 02:18:54,022 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54 WrapperNode [2024-10-24 02:18:54,022 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 02:18:54,023 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 02:18:54,024 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 02:18:54,024 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 02:18:54,029 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54" (1/1) ... [2024-10-24 02:18:54,094 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54" (1/1) ... [2024-10-24 02:18:54,389 INFO L138 Inliner]: procedures = 56, calls = 60, calls flagged for inlining = 33, calls inlined = 33, statements flattened = 12879 [2024-10-24 02:18:54,390 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 02:18:54,390 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 02:18:54,390 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 02:18:54,390 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 02:18:54,402 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54" (1/1) ... [2024-10-24 02:18:54,402 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54" (1/1) ... [2024-10-24 02:18:54,457 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54" (1/1) ... [2024-10-24 02:18:54,550 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]. [2024-10-24 02:18:54,550 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54" (1/1) ... [2024-10-24 02:18:54,551 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54" (1/1) ... [2024-10-24 02:18:54,689 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54" (1/1) ... [2024-10-24 02:18:54,728 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54" (1/1) ... [2024-10-24 02:18:54,775 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54" (1/1) ... [2024-10-24 02:18:54,796 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54" (1/1) ... [2024-10-24 02:18:54,842 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 02:18:54,844 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 02:18:54,844 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 02:18:54,844 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 02:18:54,845 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54" (1/1) ... [2024-10-24 02:18:54,849 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 02:18:54,858 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 02:18:54,874 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) [2024-10-24 02:18:54,876 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 [2024-10-24 02:18:54,996 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 02:18:54,996 INFO L130 BoogieDeclarations]: Found specification of procedure activate_threads [2024-10-24 02:18:54,996 INFO L138 BoogieDeclarations]: Found implementation of procedure activate_threads [2024-10-24 02:18:54,996 INFO L130 BoogieDeclarations]: Found specification of procedure immediate_notify [2024-10-24 02:18:54,997 INFO L138 BoogieDeclarations]: Found implementation of procedure immediate_notify [2024-10-24 02:18:54,997 INFO L130 BoogieDeclarations]: Found specification of procedure update_channels [2024-10-24 02:18:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure update_channels [2024-10-24 02:18:54,998 INFO L130 BoogieDeclarations]: Found specification of procedure error [2024-10-24 02:18:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure error [2024-10-24 02:18:54,998 INFO L130 BoogieDeclarations]: Found specification of procedure fire_delta_events [2024-10-24 02:18:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure fire_delta_events [2024-10-24 02:18:54,998 INFO L130 BoogieDeclarations]: Found specification of procedure exists_runnable_thread [2024-10-24 02:18:54,998 INFO L138 BoogieDeclarations]: Found implementation of procedure exists_runnable_thread [2024-10-24 02:18:54,998 INFO L130 BoogieDeclarations]: Found specification of procedure reset_delta_events [2024-10-24 02:18:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure reset_delta_events [2024-10-24 02:18:54,999 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 02:18:54,999 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 02:18:54,999 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 02:18:55,124 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 02:18:55,126 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 02:19:01,216 INFO L? ?]: Removed 1723 outVars from TransFormulas that were not future-live. [2024-10-24 02:19:01,216 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 02:19:01,306 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 02:19:01,306 INFO L314 CfgBuilder]: Removed 10 assume(true) statements. [2024-10-24 02:19:01,306 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:19:01 BoogieIcfgContainer [2024-10-24 02:19:01,307 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 02:19:01,310 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 02:19:01,310 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 02:19:01,313 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 02:19:01,313 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 02:18:51" (1/3) ... [2024-10-24 02:19:01,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644174c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:19:01, skipping insertion in model container [2024-10-24 02:19:01,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 02:18:54" (2/3) ... [2024-10-24 02:19:01,314 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@644174c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 02:19:01, skipping insertion in model container [2024-10-24 02:19:01,314 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 02:19:01" (3/3) ... [2024-10-24 02:19:01,316 INFO L112 eAbstractionObserver]: Analyzing ICFG Problem05_label45+token_ring.06.cil-1.c [2024-10-24 02:19:01,328 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 02:19:01,328 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2024-10-24 02:19:01,423 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 02:19:01,429 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;@35bc99b8, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 02:19:01,429 INFO L334 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2024-10-24 02:19:01,439 INFO L276 IsEmpty]: Start isEmpty. Operand has 2341 states, 2309 states have (on average 1.8817669987007362) internal successors, (4345), 2314 states have internal predecessors, (4345), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) [2024-10-24 02:19:01,450 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:01,450 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:01,451 INFO L215 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 02:19:01,451 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:01,455 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:01,455 INFO L85 PathProgramCache]: Analyzing trace with hash 633022234, now seen corresponding path program 1 times [2024-10-24 02:19:01,462 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:01,462 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [856588194] [2024-10-24 02:19:01,462 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:01,463 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:01,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:01,720 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:01,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:01,779 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:01,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:01,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:01,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:01,849 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:01,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:01,866 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:01,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:01,873 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:01,874 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:01,874 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [856588194] [2024-10-24 02:19:01,874 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [856588194] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:01,875 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:01,875 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2024-10-24 02:19:01,876 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1842224879] [2024-10-24 02:19:01,877 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:01,880 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2024-10-24 02:19:01,880 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:01,899 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2024-10-24 02:19:01,900 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2024-10-24 02:19:01,908 INFO L87 Difference]: Start difference. First operand has 2341 states, 2309 states have (on average 1.8817669987007362) internal successors, (4345), 2314 states have internal predecessors, (4345), 22 states have call successors, (22), 7 states have call predecessors, (22), 7 states have return successors, (22), 21 states have call predecessors, (22), 22 states have call successors, (22) Second operand has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-10-24 02:19:02,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:02,896 INFO L93 Difference]: Finished difference Result 4743 states and 8886 transitions. [2024-10-24 02:19:02,901 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2024-10-24 02:19:02,902 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 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 102 [2024-10-24 02:19:02,902 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:02,921 INFO L225 Difference]: With dead ends: 4743 [2024-10-24 02:19:02,921 INFO L226 Difference]: Without dead ends: 2406 [2024-10-24 02:19:02,928 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2024-10-24 02:19:02,930 INFO L432 NwaCegarLoop]: 4154 mSDtfsCounter, 567 mSDsluCounter, 12090 mSDsCounter, 0 mSdLazyCounter, 600 mSolverCounterSat, 48 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 585 SdHoareTripleChecker+Valid, 16244 SdHoareTripleChecker+Invalid, 648 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.1s SdHoareTripleChecker+Time, 48 IncrementalHoareTripleChecker+Valid, 600 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:02,931 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [585 Valid, 16244 Invalid, 648 Unknown, 0 Unchecked, 0.1s Time], IncrementalHoareTripleChecker [48 Valid, 600 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:19:02,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2406 states. [2024-10-24 02:19:03,049 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2406 to 2336. [2024-10-24 02:19:03,054 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2336 states, 2306 states have (on average 1.8460537727666955) internal successors, (4257), 2309 states have internal predecessors, (4257), 22 states have call successors, (22), 7 states have call predecessors, (22), 6 states have return successors, (20), 20 states have call predecessors, (20), 20 states have call successors, (20) [2024-10-24 02:19:03,063 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2336 states to 2336 states and 4299 transitions. [2024-10-24 02:19:03,065 INFO L78 Accepts]: Start accepts. Automaton has 2336 states and 4299 transitions. Word has length 102 [2024-10-24 02:19:03,065 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:03,065 INFO L471 AbstractCegarLoop]: Abstraction has 2336 states and 4299 transitions. [2024-10-24 02:19:03,066 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 18.2) internal successors, (91), 3 states have internal predecessors, (91), 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) [2024-10-24 02:19:03,066 INFO L276 IsEmpty]: Start isEmpty. Operand 2336 states and 4299 transitions. [2024-10-24 02:19:03,069 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:03,069 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:03,069 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] [2024-10-24 02:19:03,070 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 02:19:03,070 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:03,070 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:03,071 INFO L85 PathProgramCache]: Analyzing trace with hash -1721363048, now seen corresponding path program 1 times [2024-10-24 02:19:03,071 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:03,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1494865560] [2024-10-24 02:19:03,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:03,071 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:03,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:03,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:03,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:03,237 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:03,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:03,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:03,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:03,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:03,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:03,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:03,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:03,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:03,320 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:03,320 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1494865560] [2024-10-24 02:19:03,320 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1494865560] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:03,320 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:03,320 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:03,321 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1251384975] [2024-10-24 02:19:03,321 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:03,322 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:03,322 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:03,323 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:03,323 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:03,323 INFO L87 Difference]: Start difference. First operand 2336 states and 4299 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:05,378 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:05,378 INFO L93 Difference]: Finished difference Result 2902 states and 5234 transitions. [2024-10-24 02:19:05,379 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:19:05,379 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-10-24 02:19:05,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:05,394 INFO L225 Difference]: With dead ends: 2902 [2024-10-24 02:19:05,394 INFO L226 Difference]: Without dead ends: 2699 [2024-10-24 02:19:05,398 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:19:05,399 INFO L432 NwaCegarLoop]: 4263 mSDtfsCounter, 4757 mSDsluCounter, 16816 mSDsCounter, 0 mSdLazyCounter, 2187 mSolverCounterSat, 58 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4770 SdHoareTripleChecker+Valid, 21079 SdHoareTripleChecker+Invalid, 2245 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 58 IncrementalHoareTripleChecker+Valid, 2187 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.5s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:05,400 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4770 Valid, 21079 Invalid, 2245 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [58 Valid, 2187 Invalid, 0 Unknown, 0 Unchecked, 1.5s Time] [2024-10-24 02:19:05,405 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2699 states. [2024-10-24 02:19:05,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2699 to 2548. [2024-10-24 02:19:05,465 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2548 states, 2493 states have (on average 1.829923786602487) internal successors, (4562), 2498 states have internal predecessors, (4562), 39 states have call successors, (39), 13 states have call predecessors, (39), 14 states have return successors, (44), 38 states have call predecessors, (44), 37 states have call successors, (44) [2024-10-24 02:19:05,471 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2548 states to 2548 states and 4645 transitions. [2024-10-24 02:19:05,472 INFO L78 Accepts]: Start accepts. Automaton has 2548 states and 4645 transitions. Word has length 102 [2024-10-24 02:19:05,472 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:05,476 INFO L471 AbstractCegarLoop]: Abstraction has 2548 states and 4645 transitions. [2024-10-24 02:19:05,476 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:05,476 INFO L276 IsEmpty]: Start isEmpty. Operand 2548 states and 4645 transitions. [2024-10-24 02:19:05,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:05,479 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:05,479 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] [2024-10-24 02:19:05,480 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 02:19:05,480 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:05,481 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:05,481 INFO L85 PathProgramCache]: Analyzing trace with hash 615029462, now seen corresponding path program 1 times [2024-10-24 02:19:05,482 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:05,482 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2040625015] [2024-10-24 02:19:05,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:05,482 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:05,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:05,563 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:05,564 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:05,588 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:05,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:05,652 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:05,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:05,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:05,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:05,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:05,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:05,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:05,671 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:05,672 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2040625015] [2024-10-24 02:19:05,672 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2040625015] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:05,672 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:05,672 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:05,672 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1109161721] [2024-10-24 02:19:05,672 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:05,673 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:05,674 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:05,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:05,675 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:05,675 INFO L87 Difference]: Start difference. First operand 2548 states and 4645 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:07,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:07,350 INFO L93 Difference]: Finished difference Result 3616 states and 6396 transitions. [2024-10-24 02:19:07,351 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:19:07,351 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-10-24 02:19:07,351 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:07,362 INFO L225 Difference]: With dead ends: 3616 [2024-10-24 02:19:07,362 INFO L226 Difference]: Without dead ends: 3203 [2024-10-24 02:19:07,364 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:19:07,365 INFO L432 NwaCegarLoop]: 4225 mSDtfsCounter, 4782 mSDsluCounter, 16764 mSDsCounter, 0 mSdLazyCounter, 1984 mSolverCounterSat, 66 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4795 SdHoareTripleChecker+Valid, 20989 SdHoareTripleChecker+Invalid, 2050 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 66 IncrementalHoareTripleChecker+Valid, 1984 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:07,366 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4795 Valid, 20989 Invalid, 2050 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [66 Valid, 1984 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:19:07,369 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3203 states. [2024-10-24 02:19:07,437 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3203 to 2936. [2024-10-24 02:19:07,443 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.8022559041240747) internal successors, (5113), 2844 states have internal predecessors, (5113), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-24 02:19:07,449 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5266 transitions. [2024-10-24 02:19:07,450 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5266 transitions. Word has length 102 [2024-10-24 02:19:07,451 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:07,451 INFO L471 AbstractCegarLoop]: Abstraction has 2936 states and 5266 transitions. [2024-10-24 02:19:07,452 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:07,452 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5266 transitions. [2024-10-24 02:19:07,453 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:07,455 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:07,455 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] [2024-10-24 02:19:07,455 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 02:19:07,455 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:07,456 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:07,456 INFO L85 PathProgramCache]: Analyzing trace with hash -1803455016, now seen corresponding path program 1 times [2024-10-24 02:19:07,456 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:07,456 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1088645230] [2024-10-24 02:19:07,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:07,457 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:07,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:07,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:07,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:07,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:07,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:07,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:07,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:07,594 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:07,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:07,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:07,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:07,605 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:07,606 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:07,607 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1088645230] [2024-10-24 02:19:07,607 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1088645230] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:07,607 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:07,607 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:07,607 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1174012300] [2024-10-24 02:19:07,607 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:07,608 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:07,608 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:07,608 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:07,608 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:07,609 INFO L87 Difference]: Start difference. First operand 2936 states and 5266 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:08,392 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:08,392 INFO L93 Difference]: Finished difference Result 4009 states and 7040 transitions. [2024-10-24 02:19:08,393 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:19:08,394 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-10-24 02:19:08,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:08,406 INFO L225 Difference]: With dead ends: 4009 [2024-10-24 02:19:08,406 INFO L226 Difference]: Without dead ends: 3206 [2024-10-24 02:19:08,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:19:08,411 INFO L432 NwaCegarLoop]: 4118 mSDtfsCounter, 4659 mSDsluCounter, 12253 mSDsCounter, 0 mSdLazyCounter, 967 mSolverCounterSat, 79 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4673 SdHoareTripleChecker+Valid, 16371 SdHoareTripleChecker+Invalid, 1046 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 79 IncrementalHoareTripleChecker+Valid, 967 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:08,413 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4673 Valid, 16371 Invalid, 1046 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [79 Valid, 967 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 02:19:08,416 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3206 states. [2024-10-24 02:19:08,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3206 to 2936. [2024-10-24 02:19:08,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.8004934790271414) internal successors, (5108), 2844 states have internal predecessors, (5108), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-24 02:19:08,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5261 transitions. [2024-10-24 02:19:08,497 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5261 transitions. Word has length 102 [2024-10-24 02:19:08,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:08,498 INFO L471 AbstractCegarLoop]: Abstraction has 2936 states and 5261 transitions. [2024-10-24 02:19:08,498 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:08,498 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5261 transitions. [2024-10-24 02:19:08,500 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:08,500 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:08,500 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] [2024-10-24 02:19:08,501 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 02:19:08,501 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:08,502 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:08,502 INFO L85 PathProgramCache]: Analyzing trace with hash 612381334, now seen corresponding path program 1 times [2024-10-24 02:19:08,502 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:08,502 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1077291885] [2024-10-24 02:19:08,502 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:08,503 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:08,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:08,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:08,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:08,694 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:08,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:08,743 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:08,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:08,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:08,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:08,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:08,767 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:08,767 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:08,768 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1077291885] [2024-10-24 02:19:08,768 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1077291885] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:08,768 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:08,769 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:08,769 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1765313377] [2024-10-24 02:19:08,771 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:08,772 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:08,772 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:08,772 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:08,772 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:08,773 INFO L87 Difference]: Start difference. First operand 2936 states and 5261 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:09,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:09,733 INFO L93 Difference]: Finished difference Result 4005 states and 7019 transitions. [2024-10-24 02:19:09,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:19:09,733 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-10-24 02:19:09,733 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:09,745 INFO L225 Difference]: With dead ends: 4005 [2024-10-24 02:19:09,745 INFO L226 Difference]: Without dead ends: 3202 [2024-10-24 02:19:09,748 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:19:09,749 INFO L432 NwaCegarLoop]: 4118 mSDtfsCounter, 4571 mSDsluCounter, 16316 mSDsCounter, 0 mSdLazyCounter, 1060 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4585 SdHoareTripleChecker+Valid, 20434 SdHoareTripleChecker+Invalid, 1117 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1060 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:09,749 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4585 Valid, 20434 Invalid, 1117 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1060 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 02:19:09,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3202 states. [2024-10-24 02:19:09,804 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3202 to 2936. [2024-10-24 02:19:09,808 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.798731053930208) internal successors, (5103), 2844 states have internal predecessors, (5103), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-24 02:19:09,813 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5256 transitions. [2024-10-24 02:19:09,813 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5256 transitions. Word has length 102 [2024-10-24 02:19:09,814 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:09,814 INFO L471 AbstractCegarLoop]: Abstraction has 2936 states and 5256 transitions. [2024-10-24 02:19:09,814 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:09,814 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5256 transitions. [2024-10-24 02:19:09,815 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:09,815 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:09,815 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] [2024-10-24 02:19:09,815 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 02:19:09,815 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:09,816 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:09,816 INFO L85 PathProgramCache]: Analyzing trace with hash 1937237528, now seen corresponding path program 1 times [2024-10-24 02:19:09,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:09,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1263303123] [2024-10-24 02:19:09,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:09,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:09,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:09,863 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:09,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:09,888 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:09,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:09,919 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:09,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:09,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:09,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:09,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:09,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:09,941 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:09,942 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:09,942 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1263303123] [2024-10-24 02:19:09,942 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1263303123] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:09,942 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:09,942 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:09,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [265776365] [2024-10-24 02:19:09,942 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:09,942 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:09,942 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:09,943 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:09,943 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:09,944 INFO L87 Difference]: Start difference. First operand 2936 states and 5256 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:10,713 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:10,714 INFO L93 Difference]: Finished difference Result 4000 states and 6996 transitions. [2024-10-24 02:19:10,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 02:19:10,714 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-10-24 02:19:10,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:10,726 INFO L225 Difference]: With dead ends: 4000 [2024-10-24 02:19:10,726 INFO L226 Difference]: Without dead ends: 3197 [2024-10-24 02:19:10,729 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2024-10-24 02:19:10,730 INFO L432 NwaCegarLoop]: 4118 mSDtfsCounter, 4569 mSDsluCounter, 16316 mSDsCounter, 0 mSdLazyCounter, 1044 mSolverCounterSat, 57 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4583 SdHoareTripleChecker+Valid, 20434 SdHoareTripleChecker+Invalid, 1101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 57 IncrementalHoareTripleChecker+Valid, 1044 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.6s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:10,730 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4583 Valid, 20434 Invalid, 1101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [57 Valid, 1044 Invalid, 0 Unknown, 0 Unchecked, 0.6s Time] [2024-10-24 02:19:10,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3197 states. [2024-10-24 02:19:10,790 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3197 to 2936. [2024-10-24 02:19:10,798 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 2936 states, 2837 states have (on average 1.7969686288332747) internal successors, (5098), 2844 states have internal predecessors, (5098), 69 states have call successors, (69), 25 states have call predecessors, (69), 28 states have return successors, (84), 70 states have call predecessors, (84), 67 states have call successors, (84) [2024-10-24 02:19:10,806 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2936 states to 2936 states and 5251 transitions. [2024-10-24 02:19:10,808 INFO L78 Accepts]: Start accepts. Automaton has 2936 states and 5251 transitions. Word has length 102 [2024-10-24 02:19:10,808 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:10,808 INFO L471 AbstractCegarLoop]: Abstraction has 2936 states and 5251 transitions. [2024-10-24 02:19:10,808 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:10,808 INFO L276 IsEmpty]: Start isEmpty. Operand 2936 states and 5251 transitions. [2024-10-24 02:19:10,810 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:10,810 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:10,810 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] [2024-10-24 02:19:10,810 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 02:19:10,810 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:10,810 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:10,810 INFO L85 PathProgramCache]: Analyzing trace with hash -790971818, now seen corresponding path program 1 times [2024-10-24 02:19:10,811 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:10,811 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1251936565] [2024-10-24 02:19:10,811 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:10,811 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:10,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:10,868 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:10,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:10,892 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:10,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:10,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:10,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:10,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:10,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:10,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:10,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:10,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:10,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:10,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1251936565] [2024-10-24 02:19:10,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1251936565] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:10,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:10,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:10,957 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [36749004] [2024-10-24 02:19:10,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:10,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:10,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:10,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:10,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:10,959 INFO L87 Difference]: Start difference. First operand 2936 states and 5251 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:12,461 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:12,462 INFO L93 Difference]: Finished difference Result 4993 states and 8567 transitions. [2024-10-24 02:19:12,463 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-10-24 02:19:12,464 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-10-24 02:19:12,464 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:12,477 INFO L225 Difference]: With dead ends: 4993 [2024-10-24 02:19:12,477 INFO L226 Difference]: Without dead ends: 4192 [2024-10-24 02:19:12,481 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=66, Invalid=174, Unknown=0, NotChecked=0, Total=240 [2024-10-24 02:19:12,483 INFO L432 NwaCegarLoop]: 4259 mSDtfsCounter, 4748 mSDsluCounter, 16816 mSDsCounter, 0 mSdLazyCounter, 2088 mSolverCounterSat, 60 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4761 SdHoareTripleChecker+Valid, 21075 SdHoareTripleChecker+Invalid, 2148 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 60 IncrementalHoareTripleChecker+Valid, 2088 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:12,483 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4761 Valid, 21075 Invalid, 2148 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [60 Valid, 2088 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:19:12,487 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4192 states. [2024-10-24 02:19:12,565 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4192 to 3723. [2024-10-24 02:19:12,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 3723 states, 3536 states have (on average 1.7531108597285068) internal successors, (6199), 3547 states have internal predecessors, (6199), 129 states have call successors, (129), 49 states have call predecessors, (129), 56 states have return successors, (170), 134 states have call predecessors, (170), 127 states have call successors, (170) [2024-10-24 02:19:12,581 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3723 states to 3723 states and 6498 transitions. [2024-10-24 02:19:12,582 INFO L78 Accepts]: Start accepts. Automaton has 3723 states and 6498 transitions. Word has length 102 [2024-10-24 02:19:12,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:12,583 INFO L471 AbstractCegarLoop]: Abstraction has 3723 states and 6498 transitions. [2024-10-24 02:19:12,583 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:12,583 INFO L276 IsEmpty]: Start isEmpty. Operand 3723 states and 6498 transitions. [2024-10-24 02:19:12,585 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:12,585 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:12,585 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] [2024-10-24 02:19:12,585 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 02:19:12,586 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:12,586 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:12,587 INFO L85 PathProgramCache]: Analyzing trace with hash -1848809896, now seen corresponding path program 1 times [2024-10-24 02:19:12,587 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:12,587 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1524451351] [2024-10-24 02:19:12,587 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:12,587 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:12,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:12,641 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:12,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:12,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:12,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:12,698 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:12,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:12,706 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:12,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:12,709 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:12,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:12,712 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:12,712 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:12,712 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1524451351] [2024-10-24 02:19:12,712 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1524451351] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:12,712 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:12,713 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:12,713 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1578474748] [2024-10-24 02:19:12,713 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:12,713 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:12,713 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:12,714 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:12,714 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:12,718 INFO L87 Difference]: Start difference. First operand 3723 states and 6498 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:14,472 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:14,472 INFO L93 Difference]: Finished difference Result 8412 states and 14052 transitions. [2024-10-24 02:19:14,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:19:14,473 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-10-24 02:19:14,473 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:14,500 INFO L225 Difference]: With dead ends: 8412 [2024-10-24 02:19:14,500 INFO L226 Difference]: Without dead ends: 6824 [2024-10-24 02:19:14,506 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:19:14,507 INFO L432 NwaCegarLoop]: 4257 mSDtfsCounter, 4978 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2064 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4998 SdHoareTripleChecker+Valid, 21068 SdHoareTripleChecker+Invalid, 2127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2064 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:14,508 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4998 Valid, 21068 Invalid, 2127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2064 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:19:14,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6824 states. [2024-10-24 02:19:14,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6824 to 5288. [2024-10-24 02:19:14,772 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 5288 states, 4933 states have (on average 1.7034259071558888) internal successors, (8403), 4952 states have internal predecessors, (8403), 241 states have call successors, (241), 97 states have call predecessors, (241), 112 states have return successors, (352), 254 states have call predecessors, (352), 239 states have call successors, (352) [2024-10-24 02:19:14,785 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5288 states to 5288 states and 8996 transitions. [2024-10-24 02:19:14,787 INFO L78 Accepts]: Start accepts. Automaton has 5288 states and 8996 transitions. Word has length 102 [2024-10-24 02:19:14,788 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:14,788 INFO L471 AbstractCegarLoop]: Abstraction has 5288 states and 8996 transitions. [2024-10-24 02:19:14,788 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:14,788 INFO L276 IsEmpty]: Start isEmpty. Operand 5288 states and 8996 transitions. [2024-10-24 02:19:14,792 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:14,793 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:14,793 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] [2024-10-24 02:19:14,793 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 02:19:14,793 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:14,794 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:14,794 INFO L85 PathProgramCache]: Analyzing trace with hash 1303654934, now seen corresponding path program 1 times [2024-10-24 02:19:14,794 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:14,794 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [720179442] [2024-10-24 02:19:14,795 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:14,795 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:14,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:14,860 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:14,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:14,889 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:14,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:14,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:14,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:14,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:14,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:14,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:14,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:14,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:14,957 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:14,957 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [720179442] [2024-10-24 02:19:14,957 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [720179442] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:14,957 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:14,957 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:14,958 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1913111224] [2024-10-24 02:19:14,958 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:14,958 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:14,958 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:14,959 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:14,959 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:14,960 INFO L87 Difference]: Start difference. First operand 5288 states and 8996 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:16,712 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:16,712 INFO L93 Difference]: Finished difference Result 14195 states and 23402 transitions. [2024-10-24 02:19:16,714 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:19:16,714 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-10-24 02:19:16,714 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:16,744 INFO L225 Difference]: With dead ends: 14195 [2024-10-24 02:19:16,744 INFO L226 Difference]: Without dead ends: 11042 [2024-10-24 02:19:16,757 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:19:16,758 INFO L432 NwaCegarLoop]: 4257 mSDtfsCounter, 4921 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2009 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4941 SdHoareTripleChecker+Valid, 21068 SdHoareTripleChecker+Invalid, 2072 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2009 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:16,758 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4941 Valid, 21068 Invalid, 2072 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2009 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:19:16,767 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11042 states. [2024-10-24 02:19:17,113 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11042 to 8433. [2024-10-24 02:19:17,124 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 8433 states, 7750 states have (on average 1.6589677419354838) internal successors, (12857), 7785 states have internal predecessors, (12857), 457 states have call successors, (457), 193 states have call predecessors, (457), 224 states have return successors, (762), 486 states have call predecessors, (762), 455 states have call successors, (762) [2024-10-24 02:19:17,138 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 8433 states to 8433 states and 14076 transitions. [2024-10-24 02:19:17,142 INFO L78 Accepts]: Start accepts. Automaton has 8433 states and 14076 transitions. Word has length 102 [2024-10-24 02:19:17,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:17,142 INFO L471 AbstractCegarLoop]: Abstraction has 8433 states and 14076 transitions. [2024-10-24 02:19:17,142 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:17,142 INFO L276 IsEmpty]: Start isEmpty. Operand 8433 states and 14076 transitions. [2024-10-24 02:19:17,146 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:17,146 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:17,146 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] [2024-10-24 02:19:17,147 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 02:19:17,147 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:17,147 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:17,147 INFO L85 PathProgramCache]: Analyzing trace with hash 2142688596, now seen corresponding path program 1 times [2024-10-24 02:19:17,147 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:17,147 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1061083081] [2024-10-24 02:19:17,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:17,148 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:17,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:17,193 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:17,195 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:17,217 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:17,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:17,253 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:17,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:17,259 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:17,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:17,262 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:17,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:17,264 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:17,264 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:17,264 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1061083081] [2024-10-24 02:19:17,264 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1061083081] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:17,265 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:17,265 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:17,265 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [133510103] [2024-10-24 02:19:17,265 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:17,265 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:17,265 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:17,266 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:17,266 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:17,266 INFO L87 Difference]: Start difference. First operand 8433 states and 14076 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:19,481 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:19,482 INFO L93 Difference]: Finished difference Result 25710 states and 42196 transitions. [2024-10-24 02:19:19,484 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:19:19,485 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-10-24 02:19:19,486 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:19,546 INFO L225 Difference]: With dead ends: 25710 [2024-10-24 02:19:19,547 INFO L226 Difference]: Without dead ends: 19412 [2024-10-24 02:19:19,569 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:19:19,570 INFO L432 NwaCegarLoop]: 4226 mSDtfsCounter, 4898 mSDsluCounter, 16762 mSDsCounter, 0 mSdLazyCounter, 1872 mSolverCounterSat, 71 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4918 SdHoareTripleChecker+Valid, 20988 SdHoareTripleChecker+Invalid, 1943 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 71 IncrementalHoareTripleChecker+Valid, 1872 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:19,571 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4918 Valid, 20988 Invalid, 1943 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [71 Valid, 1872 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:19:19,588 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19412 states. [2024-10-24 02:19:20,268 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19412 to 14723. [2024-10-24 02:19:20,284 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14723 states, 13400 states have (on average 1.6266417910447761) internal successors, (21797), 13467 states have internal predecessors, (21797), 873 states have call successors, (873), 385 states have call predecessors, (873), 448 states have return successors, (1728), 934 states have call predecessors, (1728), 871 states have call successors, (1728) [2024-10-24 02:19:20,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14723 states to 14723 states and 24398 transitions. [2024-10-24 02:19:20,321 INFO L78 Accepts]: Start accepts. Automaton has 14723 states and 24398 transitions. Word has length 102 [2024-10-24 02:19:20,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:20,322 INFO L471 AbstractCegarLoop]: Abstraction has 14723 states and 24398 transitions. [2024-10-24 02:19:20,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:20,322 INFO L276 IsEmpty]: Start isEmpty. Operand 14723 states and 24398 transitions. [2024-10-24 02:19:20,332 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:20,332 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:20,333 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] [2024-10-24 02:19:20,333 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 02:19:20,333 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:20,334 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:20,334 INFO L85 PathProgramCache]: Analyzing trace with hash -2125213098, now seen corresponding path program 1 times [2024-10-24 02:19:20,334 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:20,334 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [28220122] [2024-10-24 02:19:20,334 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:20,334 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:20,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:20,385 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:20,413 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:20,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:20,451 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:20,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:20,458 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:20,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:20,461 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:20,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:20,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:20,463 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:20,463 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [28220122] [2024-10-24 02:19:20,463 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [28220122] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:20,463 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:20,463 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:20,463 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1796013668] [2024-10-24 02:19:20,463 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:20,464 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:20,464 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:20,464 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:20,464 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:20,464 INFO L87 Difference]: Start difference. First operand 14723 states and 24398 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:23,651 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:23,652 INFO L93 Difference]: Finished difference Result 48260 states and 79600 transitions. [2024-10-24 02:19:23,652 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:19:23,652 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-10-24 02:19:23,652 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:23,773 INFO L225 Difference]: With dead ends: 48260 [2024-10-24 02:19:23,773 INFO L226 Difference]: Without dead ends: 35672 [2024-10-24 02:19:23,827 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:19:23,828 INFO L432 NwaCegarLoop]: 4258 mSDtfsCounter, 4789 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2191 mSolverCounterSat, 62 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4801 SdHoareTripleChecker+Valid, 21069 SdHoareTripleChecker+Invalid, 2253 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 62 IncrementalHoareTripleChecker+Valid, 2191 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:23,828 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4801 Valid, 21069 Invalid, 2253 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [62 Valid, 2191 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 02:19:23,856 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35672 states. [2024-10-24 02:19:25,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35672 to 27303. [2024-10-24 02:19:25,134 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27303 states, 24732 states have (on average 1.6068655992236778) internal successors, (39741), 24863 states have internal predecessors, (39741), 1673 states have call successors, (1673), 769 states have call predecessors, (1673), 896 states have return successors, (4114), 1798 states have call predecessors, (4114), 1671 states have call successors, (4114) [2024-10-24 02:19:25,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27303 states to 27303 states and 45528 transitions. [2024-10-24 02:19:25,215 INFO L78 Accepts]: Start accepts. Automaton has 27303 states and 45528 transitions. Word has length 102 [2024-10-24 02:19:25,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:25,215 INFO L471 AbstractCegarLoop]: Abstraction has 27303 states and 45528 transitions. [2024-10-24 02:19:25,215 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:25,216 INFO L276 IsEmpty]: Start isEmpty. Operand 27303 states and 45528 transitions. [2024-10-24 02:19:25,232 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:25,233 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:25,233 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] [2024-10-24 02:19:25,233 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 02:19:25,233 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:25,233 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:25,233 INFO L85 PathProgramCache]: Analyzing trace with hash 92417300, now seen corresponding path program 1 times [2024-10-24 02:19:25,233 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:25,234 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1621126835] [2024-10-24 02:19:25,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:25,234 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:25,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:25,280 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:25,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:25,305 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:25,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:25,459 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:25,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:25,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:25,469 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:25,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:25,471 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:25,471 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:25,471 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1621126835] [2024-10-24 02:19:25,471 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1621126835] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:25,471 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:25,471 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:25,472 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [759251409] [2024-10-24 02:19:25,472 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:25,472 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:25,472 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:25,472 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:25,472 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:25,473 INFO L87 Difference]: Start difference. First operand 27303 states and 45528 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:29,923 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:29,923 INFO L93 Difference]: Finished difference Result 92400 states and 154688 transitions. [2024-10-24 02:19:29,923 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:19:29,924 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-10-24 02:19:29,924 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:30,149 INFO L225 Difference]: With dead ends: 92400 [2024-10-24 02:19:30,149 INFO L226 Difference]: Without dead ends: 67232 [2024-10-24 02:19:30,214 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:19:30,215 INFO L432 NwaCegarLoop]: 4259 mSDtfsCounter, 4819 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 1980 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4839 SdHoareTripleChecker+Valid, 21070 SdHoareTripleChecker+Invalid, 2043 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 1980 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:30,216 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4839 Valid, 21070 Invalid, 2043 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 1980 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 02:19:30,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 67232 states. [2024-10-24 02:19:32,962 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 67232 to 52463. [2024-10-24 02:19:33,008 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 52463 states, 47460 states have (on average 1.596228402865571) internal successors, (75757), 47719 states have internal predecessors, (75757), 3209 states have call successors, (3209), 1537 states have call predecessors, (3209), 1792 states have return successors, (10280), 3462 states have call predecessors, (10280), 3207 states have call successors, (10280) [2024-10-24 02:19:33,136 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 52463 states to 52463 states and 89246 transitions. [2024-10-24 02:19:33,151 INFO L78 Accepts]: Start accepts. Automaton has 52463 states and 89246 transitions. Word has length 102 [2024-10-24 02:19:33,151 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:33,151 INFO L471 AbstractCegarLoop]: Abstraction has 52463 states and 89246 transitions. [2024-10-24 02:19:33,151 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:33,151 INFO L276 IsEmpty]: Start isEmpty. Operand 52463 states and 89246 transitions. [2024-10-24 02:19:33,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:33,184 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:33,184 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] [2024-10-24 02:19:33,184 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 02:19:33,184 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:33,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:33,184 INFO L85 PathProgramCache]: Analyzing trace with hash 1826521750, now seen corresponding path program 1 times [2024-10-24 02:19:33,184 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:33,184 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1720987751] [2024-10-24 02:19:33,185 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:33,185 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:33,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:33,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:33,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:33,251 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:33,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:33,283 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:33,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:33,289 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:33,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:33,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:33,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:33,295 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:33,295 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:33,295 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1720987751] [2024-10-24 02:19:33,295 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1720987751] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:33,295 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:33,295 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 02:19:33,295 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [774609424] [2024-10-24 02:19:33,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:33,296 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 02:19:33,296 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:33,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 02:19:33,296 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2024-10-24 02:19:33,296 INFO L87 Difference]: Start difference. First operand 52463 states and 89246 transitions. Second operand has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:42,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 02:19:42,153 INFO L93 Difference]: Finished difference Result 178760 states and 307368 transitions. [2024-10-24 02:19:42,153 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2024-10-24 02:19:42,154 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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 102 [2024-10-24 02:19:42,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 02:19:42,788 INFO L225 Difference]: With dead ends: 178760 [2024-10-24 02:19:42,789 INFO L226 Difference]: Without dead ends: 128432 [2024-10-24 02:19:42,903 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=73, Invalid=199, Unknown=0, NotChecked=0, Total=272 [2024-10-24 02:19:42,903 INFO L432 NwaCegarLoop]: 4257 mSDtfsCounter, 4770 mSDsluCounter, 16811 mSDsCounter, 0 mSdLazyCounter, 2066 mSolverCounterSat, 63 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.9s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4782 SdHoareTripleChecker+Valid, 21068 SdHoareTripleChecker+Invalid, 2129 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 63 IncrementalHoareTripleChecker+Valid, 2066 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 02:19:42,903 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4782 Valid, 21068 Invalid, 2129 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [63 Valid, 2066 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 02:19:42,969 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 128432 states. [2024-10-24 02:19:49,042 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 128432 to 102783. [2024-10-24 02:19:49,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102783 states, 93044 states have (on average 1.5911289282490004) internal successors, (148045), 93559 states have internal predecessors, (148045), 6153 states have call successors, (6153), 3073 states have call predecessors, (6153), 3584 states have return successors, (26858), 6662 states have call predecessors, (26858), 6151 states have call successors, (26858) [2024-10-24 02:19:49,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102783 states to 102783 states and 181056 transitions. [2024-10-24 02:19:49,585 INFO L78 Accepts]: Start accepts. Automaton has 102783 states and 181056 transitions. Word has length 102 [2024-10-24 02:19:49,586 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 02:19:49,586 INFO L471 AbstractCegarLoop]: Abstraction has 102783 states and 181056 transitions. [2024-10-24 02:19:49,586 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 13.0) internal successors, (91), 5 states have internal predecessors, (91), 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) [2024-10-24 02:19:49,586 INFO L276 IsEmpty]: Start isEmpty. Operand 102783 states and 181056 transitions. [2024-10-24 02:19:49,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 103 [2024-10-24 02:19:49,677 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 02:19:49,678 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] [2024-10-24 02:19:49,678 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 02:19:49,678 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting errorErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION, errorErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 02:19:49,678 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 02:19:49,678 INFO L85 PathProgramCache]: Analyzing trace with hash -1581222700, now seen corresponding path program 1 times [2024-10-24 02:19:49,679 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 02:19:49,679 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [163081601] [2024-10-24 02:19:49,679 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 02:19:49,679 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 02:19:49,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:49,717 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 02:19:49,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:49,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 14 [2024-10-24 02:19:49,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:49,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-10-24 02:19:49,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:49,797 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-10-24 02:19:49,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:49,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2024-10-24 02:19:49,804 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 02:19:49,805 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2024-10-24 02:19:49,805 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 02:19:49,805 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [163081601] [2024-10-24 02:19:49,805 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [163081601] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 02:19:49,806 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 02:19:49,806 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2024-10-24 02:19:49,806 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1940264987] [2024-10-24 02:19:49,806 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 02:19:49,806 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2024-10-24 02:19:49,807 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 02:19:49,807 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2024-10-24 02:19:49,807 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2024-10-24 02:19:49,807 INFO L87 Difference]: Start difference. First operand 102783 states and 181056 transitions. Second operand has 6 states, 6 states have (on average 15.166666666666666) internal successors, (91), 4 states have internal predecessors, (91), 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)