./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/reducercommutativity/max40-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 023d838f Calling Ultimate with: /root/.sdkman/candidates/java/11.0.12-open/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 ../sv-benchmarks/c/reducercommutativity/max40-1.i -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 a8d5806586012290ae42296af495175d1f0a3275a3232981eda33ec55888f6d2 --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 18:01:46,572 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 18:01:46,633 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 18:01:46,638 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 18:01:46,638 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 18:01:46,663 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 18:01:46,664 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 18:01:46,664 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 18:01:46,665 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 18:01:46,666 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 18:01:46,667 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 18:01:46,667 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 18:01:46,667 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 18:01:46,668 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 18:01:46,669 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 18:01:46,669 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 18:01:46,670 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 18:01:46,670 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 18:01:46,670 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 18:01:46,670 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 18:01:46,671 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 18:01:46,674 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 18:01:46,674 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 18:01:46,674 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 18:01:46,675 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 18:01:46,675 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 18:01:46,675 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 18:01:46,675 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 18:01:46,675 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 18:01:46,676 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 18:01:46,676 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 18:01:46,676 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 18:01:46,676 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 18:01:46,676 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 18:01:46,676 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 18:01:46,677 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 18:01:46,677 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 18:01:46,677 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 18:01:46,677 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 18:01:46,677 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 18:01:46,678 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 18:01:46,678 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 18:01:46,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> a8d5806586012290ae42296af495175d1f0a3275a3232981eda33ec55888f6d2 [2024-11-09 18:01:46,873 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 18:01:46,896 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 18:01:46,898 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 18:01:46,899 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 18:01:46,900 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 18:01:46,901 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/reducercommutativity/max40-1.i [2024-11-09 18:01:48,393 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 18:01:48,571 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 18:01:48,572 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max40-1.i [2024-11-09 18:01:48,581 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb617583/3e0fb0ae09584138b34ad7c15c20b997/FLAG8a5919f0f [2024-11-09 18:01:48,963 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7cb617583/3e0fb0ae09584138b34ad7c15c20b997 [2024-11-09 18:01:48,966 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 18:01:48,967 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 18:01:48,972 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 18:01:48,973 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 18:01:48,979 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 18:01:48,980 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:01:48" (1/1) ... [2024-11-09 18:01:48,981 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@752978c0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:48, skipping insertion in model container [2024-11-09 18:01:48,981 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:01:48" (1/1) ... [2024-11-09 18:01:49,006 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 18:01:49,189 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max40-1.i[1290,1303] [2024-11-09 18:01:49,196 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 18:01:49,207 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 18:01:49,234 WARN L250 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/reducercommutativity/max40-1.i[1290,1303] [2024-11-09 18:01:49,241 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 18:01:49,268 INFO L204 MainTranslator]: Completed translation [2024-11-09 18:01:49,268 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49 WrapperNode [2024-11-09 18:01:49,269 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 18:01:49,270 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 18:01:49,270 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 18:01:49,270 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 18:01:49,277 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49" (1/1) ... [2024-11-09 18:01:49,284 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49" (1/1) ... [2024-11-09 18:01:49,300 INFO L138 Inliner]: procedures = 16, calls = 23, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2024-11-09 18:01:49,301 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 18:01:49,305 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 18:01:49,305 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 18:01:49,305 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 18:01:49,325 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49" (1/1) ... [2024-11-09 18:01:49,325 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49" (1/1) ... [2024-11-09 18:01:49,327 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49" (1/1) ... [2024-11-09 18:01:49,343 INFO L175 MemorySlicer]: Split 13 memory accesses to 2 slices as follows [2, 11]. 85 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0]. The 5 writes are split as follows [0, 5]. [2024-11-09 18:01:49,343 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49" (1/1) ... [2024-11-09 18:01:49,344 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49" (1/1) ... [2024-11-09 18:01:49,348 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49" (1/1) ... [2024-11-09 18:01:49,349 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49" (1/1) ... [2024-11-09 18:01:49,350 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49" (1/1) ... [2024-11-09 18:01:49,351 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49" (1/1) ... [2024-11-09 18:01:49,352 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 18:01:49,353 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 18:01:49,353 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 18:01:49,354 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 18:01:49,354 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49" (1/1) ... [2024-11-09 18:01:49,360 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 18:01:49,379 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:01:49,404 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-11-09 18:01:49,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-11-09 18:01:49,452 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 18:01:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure max [2024-11-09 18:01:49,453 INFO L138 BoogieDeclarations]: Found implementation of procedure max [2024-11-09 18:01:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 18:01:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 18:01:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 18:01:49,453 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 18:01:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 18:01:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 18:01:49,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 18:01:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 18:01:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 18:01:49,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 18:01:49,531 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 18:01:49,534 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 18:01:49,669 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L28: call ULTIMATE.dealloc(main_~#x~0#1.base, main_~#x~0#1.offset);havoc main_~#x~0#1.base, main_~#x~0#1.offset; [2024-11-09 18:01:49,679 INFO L? ?]: Removed 19 outVars from TransFormulas that were not future-live. [2024-11-09 18:01:49,680 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 18:01:49,692 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 18:01:49,693 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 18:01:49,693 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:01:49 BoogieIcfgContainer [2024-11-09 18:01:49,693 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 18:01:49,696 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 18:01:49,696 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 18:01:49,728 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 18:01:49,729 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:01:48" (1/3) ... [2024-11-09 18:01:49,731 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704b2f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:01:49, skipping insertion in model container [2024-11-09 18:01:49,731 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:01:49" (2/3) ... [2024-11-09 18:01:49,732 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@704b2f51 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:01:49, skipping insertion in model container [2024-11-09 18:01:49,733 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:01:49" (3/3) ... [2024-11-09 18:01:49,735 INFO L112 eAbstractionObserver]: Analyzing ICFG max40-1.i [2024-11-09 18:01:49,790 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 18:01:49,794 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 18:01:49,887 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 18:01:49,894 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;@216f4110, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 18:01:49,894 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 18:01:49,898 INFO L276 IsEmpty]: Start isEmpty. Operand has 29 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:01:49,906 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 18:01:49,907 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:01:49,908 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:01:49,909 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:01:49,914 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:01:49,914 INFO L85 PathProgramCache]: Analyzing trace with hash -55101014, now seen corresponding path program 1 times [2024-11-09 18:01:49,923 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:01:49,924 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [383037301] [2024-11-09 18:01:49,924 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:49,925 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:01:50,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:50,079 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 18:01:50,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:50,097 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 18:01:50,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:50,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 18:01:50,111 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:50,125 INFO L134 CoverageAnalysis]: Checked inductivity of 15 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 15 trivial. 0 not checked. [2024-11-09 18:01:50,126 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:01:50,126 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [383037301] [2024-11-09 18:01:50,127 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [383037301] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:01:50,127 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:01:50,127 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 18:01:50,129 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43556242] [2024-11-09 18:01:50,130 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:01:50,134 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 18:01:50,138 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:01:50,161 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 18:01:50,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 18:01:50,166 INFO L87 Difference]: Start difference. First operand has 29 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) Second operand has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 18:01:50,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:01:50,185 INFO L93 Difference]: Finished difference Result 54 states and 73 transitions. [2024-11-09 18:01:50,186 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 18:01:50,187 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 29 [2024-11-09 18:01:50,188 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:01:50,194 INFO L225 Difference]: With dead ends: 54 [2024-11-09 18:01:50,194 INFO L226 Difference]: Without dead ends: 25 [2024-11-09 18:01:50,198 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 18:01:50,204 INFO L432 NwaCegarLoop]: 34 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 0 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 34 SdHoareTripleChecker+Invalid, 0 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 0 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:01:50,206 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 34 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:01:50,222 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-09 18:01:50,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-09 18:01:50,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.2) internal successors, (24), 20 states have internal predecessors, (24), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:01:50,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 30 transitions. [2024-11-09 18:01:50,241 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 30 transitions. Word has length 29 [2024-11-09 18:01:50,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:01:50,241 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 30 transitions. [2024-11-09 18:01:50,242 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 7.5) internal successors, (15), 2 states have internal predecessors, (15), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 18:01:50,242 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 30 transitions. [2024-11-09 18:01:50,244 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 18:01:50,244 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:01:50,244 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:01:50,245 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 18:01:50,245 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:01:50,246 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:01:50,246 INFO L85 PathProgramCache]: Analyzing trace with hash -1734501763, now seen corresponding path program 1 times [2024-11-09 18:01:50,246 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:01:50,246 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [882280514] [2024-11-09 18:01:50,246 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:50,247 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:01:50,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:50,346 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 18:01:50,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:50,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-09 18:01:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:50,394 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 18:01:50,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:50,421 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 5 proven. 5 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 18:01:50,422 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:01:50,422 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [882280514] [2024-11-09 18:01:50,423 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [882280514] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:01:50,423 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1204345354] [2024-11-09 18:01:50,423 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:50,423 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:50,423 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:01:50,428 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:01:50,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2024-11-09 18:01:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:50,530 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 18:01:50,535 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:01:50,568 INFO L134 CoverageAnalysis]: Checked inductivity of 18 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 18:01:50,568 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 18:01:50,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1204345354] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:01:50,569 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 18:01:50,569 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 18:01:50,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [955330338] [2024-11-09 18:01:50,570 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:01:50,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:01:50,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:01:50,573 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:01:50,573 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 18:01:50,574 INFO L87 Difference]: Start difference. First operand 25 states and 30 transitions. Second operand has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 18:01:50,590 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:01:50,592 INFO L93 Difference]: Finished difference Result 48 states and 58 transitions. [2024-11-09 18:01:50,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:01:50,593 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) Word has length 34 [2024-11-09 18:01:50,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:01:50,594 INFO L225 Difference]: With dead ends: 48 [2024-11-09 18:01:50,594 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 18:01:50,595 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 44 GetRequests, 41 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 18:01:50,595 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 26 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 55 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:01:50,596 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 55 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:01:50,598 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 18:01:50,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 18:01:50,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.1818181818181819) internal successors, (26), 22 states have internal predecessors, (26), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:01:50,606 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 32 transitions. [2024-11-09 18:01:50,606 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 32 transitions. Word has length 34 [2024-11-09 18:01:50,606 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:01:50,607 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 32 transitions. [2024-11-09 18:01:50,607 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 6.0) internal successors, (18), 3 states have internal predecessors, (18), 1 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 1 states have call successors, (3) [2024-11-09 18:01:50,607 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 32 transitions. [2024-11-09 18:01:50,608 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 18:01:50,608 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:01:50,608 INFO L215 NwaCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:01:50,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Forceful destruction successful, exit code 0 [2024-11-09 18:01:50,812 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:50,814 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:01:50,814 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:01:50,816 INFO L85 PathProgramCache]: Analyzing trace with hash -997971140, now seen corresponding path program 1 times [2024-11-09 18:01:50,816 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:01:50,816 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067380753] [2024-11-09 18:01:50,816 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:50,816 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:01:50,842 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:50,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 18:01:50,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:50,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-09 18:01:50,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:50,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 18:01:50,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:51,004 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 5 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2024-11-09 18:01:51,005 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:01:51,005 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067380753] [2024-11-09 18:01:51,005 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067380753] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:01:51,007 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547922642] [2024-11-09 18:01:51,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:51,007 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:51,007 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:01:51,014 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:01:51,015 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2024-11-09 18:01:51,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:51,093 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 18:01:51,095 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:01:51,103 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 6 proven. 0 refuted. 0 times theorem prover too weak. 14 trivial. 0 not checked. [2024-11-09 18:01:51,104 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 18:01:51,104 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547922642] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:01:51,104 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 18:01:51,104 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2024-11-09 18:01:51,104 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1171298740] [2024-11-09 18:01:51,104 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:01:51,105 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:01:51,105 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:01:51,106 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:01:51,106 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 18:01:51,106 INFO L87 Difference]: Start difference. First operand 27 states and 32 transitions. Second operand has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 18:01:51,119 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:01:51,119 INFO L93 Difference]: Finished difference Result 50 states and 63 transitions. [2024-11-09 18:01:51,120 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:01:51,120 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) Word has length 36 [2024-11-09 18:01:51,120 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:01:51,121 INFO L225 Difference]: With dead ends: 50 [2024-11-09 18:01:51,121 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 18:01:51,122 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 44 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 18:01:51,123 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 3 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 7 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 3 SdHoareTripleChecker+Valid, 52 SdHoareTripleChecker+Invalid, 7 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 7 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:01:51,123 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [3 Valid, 52 Invalid, 7 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 7 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:01:51,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 18:01:51,127 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 29. [2024-11-09 18:01:51,127 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.1666666666666667) internal successors, (28), 24 states have internal predecessors, (28), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:01:51,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 34 transitions. [2024-11-09 18:01:51,128 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 34 transitions. Word has length 36 [2024-11-09 18:01:51,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:01:51,128 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 34 transitions. [2024-11-09 18:01:51,129 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.333333333333333) internal successors, (22), 3 states have internal predecessors, (22), 2 states have call successors, (3), 2 states have call predecessors, (3), 1 states have return successors, (3), 1 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 18:01:51,129 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 34 transitions. [2024-11-09 18:01:51,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2024-11-09 18:01:51,130 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:01:51,130 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:01:51,152 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2024-11-09 18:01:51,334 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable2 [2024-11-09 18:01:51,335 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:01:51,336 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:01:51,336 INFO L85 PathProgramCache]: Analyzing trace with hash 496520382, now seen corresponding path program 1 times [2024-11-09 18:01:51,337 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:01:51,337 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1631235167] [2024-11-09 18:01:51,337 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:51,337 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:01:51,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:51,408 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 18:01:51,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:51,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 18:01:51,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:51,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2024-11-09 18:01:51,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:51,456 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 18:01:51,458 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:01:51,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1631235167] [2024-11-09 18:01:51,458 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1631235167] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:01:51,458 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1135961820] [2024-11-09 18:01:51,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:51,458 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:51,458 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:01:51,460 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:01:51,463 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2024-11-09 18:01:51,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:51,553 INFO L255 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 18:01:51,555 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:01:51,583 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 18:01:51,583 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 18:01:51,583 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1135961820] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:01:51,583 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 18:01:51,583 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-09 18:01:51,583 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1204324982] [2024-11-09 18:01:51,584 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:01:51,584 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:01:51,586 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:01:51,587 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:01:51,587 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 18:01:51,587 INFO L87 Difference]: Start difference. First operand 29 states and 34 transitions. Second operand has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 18:01:51,603 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:01:51,604 INFO L93 Difference]: Finished difference Result 47 states and 54 transitions. [2024-11-09 18:01:51,604 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:01:51,604 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 48 [2024-11-09 18:01:51,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:01:51,605 INFO L225 Difference]: With dead ends: 47 [2024-11-09 18:01:51,605 INFO L226 Difference]: Without dead ends: 31 [2024-11-09 18:01:51,606 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 54 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 18:01:51,607 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 25 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 54 SdHoareTripleChecker+Invalid, 5 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 5 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:01:51,607 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 54 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:01:51,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 31 states. [2024-11-09 18:01:51,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 31 to 31. [2024-11-09 18:01:51,614 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 26 states have (on average 1.1538461538461537) internal successors, (30), 26 states have internal predecessors, (30), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:01:51,615 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 36 transitions. [2024-11-09 18:01:51,615 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 36 transitions. Word has length 48 [2024-11-09 18:01:51,616 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:01:51,616 INFO L471 AbstractCegarLoop]: Abstraction has 31 states and 36 transitions. [2024-11-09 18:01:51,617 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.0) internal successors, (30), 3 states have internal predecessors, (30), 2 states have call successors, (3), 2 states have call predecessors, (3), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2024-11-09 18:01:51,617 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 36 transitions. [2024-11-09 18:01:51,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 51 [2024-11-09 18:01:51,620 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:01:51,621 INFO L215 NwaCegarLoop]: trace histogram [6, 3, 3, 3, 3, 3, 3, 3, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:01:51,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2024-11-09 18:01:51,821 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:51,823 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:01:51,823 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:01:51,823 INFO L85 PathProgramCache]: Analyzing trace with hash -1319773953, now seen corresponding path program 1 times [2024-11-09 18:01:51,823 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:01:51,824 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1163623262] [2024-11-09 18:01:51,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:51,826 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:01:51,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:51,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 18:01:51,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:51,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2024-11-09 18:01:51,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:51,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 36 [2024-11-09 18:01:51,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:51,963 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 13 proven. 17 refuted. 0 times theorem prover too weak. 22 trivial. 0 not checked. [2024-11-09 18:01:51,964 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:01:51,964 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1163623262] [2024-11-09 18:01:51,966 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1163623262] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:01:51,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [909827834] [2024-11-09 18:01:51,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:51,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:51,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:01:51,968 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:01:51,969 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2024-11-09 18:01:52,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:52,064 INFO L255 TraceCheckSpWp]: Trace formula consists of 186 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 18:01:52,066 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:01:52,096 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-09 18:01:52,096 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:01:52,148 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 50 trivial. 0 not checked. [2024-11-09 18:01:52,148 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [909827834] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:01:52,149 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:01:52,149 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2024-11-09 18:01:52,149 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1245260219] [2024-11-09 18:01:52,149 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:01:52,149 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 18:01:52,150 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:01:52,150 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 18:01:52,151 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-09 18:01:52,151 INFO L87 Difference]: Start difference. First operand 31 states and 36 transitions. Second operand has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 18:01:52,185 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:01:52,187 INFO L93 Difference]: Finished difference Result 68 states and 86 transitions. [2024-11-09 18:01:52,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 18:01:52,187 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 50 [2024-11-09 18:01:52,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:01:52,188 INFO L225 Difference]: With dead ends: 68 [2024-11-09 18:01:52,188 INFO L226 Difference]: Without dead ends: 43 [2024-11-09 18:01:52,188 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 110 GetRequests, 103 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-09 18:01:52,189 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 4 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 23 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 4 SdHoareTripleChecker+Valid, 100 SdHoareTripleChecker+Invalid, 24 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 23 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:01:52,189 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [4 Valid, 100 Invalid, 24 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 23 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:01:52,189 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 43 states. [2024-11-09 18:01:52,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 43 to 41. [2024-11-09 18:01:52,196 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 41 states, 36 states have (on average 1.1388888888888888) internal successors, (41), 36 states have internal predecessors, (41), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:01:52,197 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 41 states to 41 states and 47 transitions. [2024-11-09 18:01:52,199 INFO L78 Accepts]: Start accepts. Automaton has 41 states and 47 transitions. Word has length 50 [2024-11-09 18:01:52,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:01:52,200 INFO L471 AbstractCegarLoop]: Abstraction has 41 states and 47 transitions. [2024-11-09 18:01:52,200 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 5.222222222222222) internal successors, (47), 9 states have internal predecessors, (47), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 18:01:52,200 INFO L276 IsEmpty]: Start isEmpty. Operand 41 states and 47 transitions. [2024-11-09 18:01:52,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2024-11-09 18:01:52,201 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:01:52,201 INFO L215 NwaCegarLoop]: trace histogram [9, 6, 6, 6, 5, 4, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:01:52,217 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2024-11-09 18:01:52,401 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:52,402 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:01:52,402 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:01:52,403 INFO L85 PathProgramCache]: Analyzing trace with hash 1805779838, now seen corresponding path program 2 times [2024-11-09 18:01:52,403 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:01:52,404 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1582368060] [2024-11-09 18:01:52,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:52,406 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:01:52,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:52,492 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-09 18:01:52,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:52,498 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 18:01:52,501 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:52,507 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 50 [2024-11-09 18:01:52,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:52,514 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 134 trivial. 0 not checked. [2024-11-09 18:01:52,514 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:01:52,514 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1582368060] [2024-11-09 18:01:52,514 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1582368060] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:01:52,515 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [599653173] [2024-11-09 18:01:52,515 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 18:01:52,515 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:52,515 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:01:52,516 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:01:52,517 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2024-11-09 18:01:52,594 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 18:01:52,594 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:01:52,595 INFO L255 TraceCheckSpWp]: Trace formula consists of 255 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 18:01:52,597 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:01:52,640 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-09 18:01:52,642 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:01:52,720 INFO L134 CoverageAnalysis]: Checked inductivity of 136 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 116 trivial. 0 not checked. [2024-11-09 18:01:52,720 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [599653173] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:01:52,720 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:01:52,720 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2024-11-09 18:01:52,720 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [486762723] [2024-11-09 18:01:52,720 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:01:52,721 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 18:01:52,721 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:01:52,722 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 18:01:52,723 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-09 18:01:52,723 INFO L87 Difference]: Start difference. First operand 41 states and 47 transitions. Second operand has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 18:01:52,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:01:52,756 INFO L93 Difference]: Finished difference Result 84 states and 102 transitions. [2024-11-09 18:01:52,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 18:01:52,756 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) Word has length 68 [2024-11-09 18:01:52,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:01:52,757 INFO L225 Difference]: With dead ends: 84 [2024-11-09 18:01:52,757 INFO L226 Difference]: Without dead ends: 55 [2024-11-09 18:01:52,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 144 GetRequests, 132 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-09 18:01:52,758 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 107 mSDsCounter, 0 mSdLazyCounter, 27 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 135 SdHoareTripleChecker+Invalid, 28 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 27 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:01:52,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 135 Invalid, 28 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 27 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:01:52,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 55 states. [2024-11-09 18:01:52,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 55 to 55. [2024-11-09 18:01:52,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 55 states, 50 states have (on average 1.1) internal successors, (55), 50 states have internal predecessors, (55), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:01:52,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 55 states to 55 states and 61 transitions. [2024-11-09 18:01:52,767 INFO L78 Accepts]: Start accepts. Automaton has 55 states and 61 transitions. Word has length 68 [2024-11-09 18:01:52,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:01:52,767 INFO L471 AbstractCegarLoop]: Abstraction has 55 states and 61 transitions. [2024-11-09 18:01:52,767 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.285714285714286) internal successors, (60), 14 states have internal predecessors, (60), 2 states have call successors, (8), 2 states have call predecessors, (8), 2 states have return successors, (8), 2 states have call predecessors, (8), 2 states have call successors, (8) [2024-11-09 18:01:52,767 INFO L276 IsEmpty]: Start isEmpty. Operand 55 states and 61 transitions. [2024-11-09 18:01:52,768 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 83 [2024-11-09 18:01:52,768 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:01:52,768 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 9, 6, 6, 6, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:01:52,790 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2024-11-09 18:01:52,968 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:52,969 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:01:52,969 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:01:52,970 INFO L85 PathProgramCache]: Analyzing trace with hash 1022551545, now seen corresponding path program 3 times [2024-11-09 18:01:52,970 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:01:52,970 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1740501935] [2024-11-09 18:01:52,970 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:52,970 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:01:53,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:53,302 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 18:01:53,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:53,312 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 41 [2024-11-09 18:01:53,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:53,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 64 [2024-11-09 18:01:53,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:53,331 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 120 trivial. 0 not checked. [2024-11-09 18:01:53,331 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:01:53,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1740501935] [2024-11-09 18:01:53,332 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1740501935] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:01:53,332 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1078948202] [2024-11-09 18:01:53,332 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 18:01:53,332 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:53,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:01:53,337 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:01:53,339 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2024-11-09 18:01:53,442 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 18:01:53,442 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:01:53,444 INFO L255 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 18:01:53,446 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:01:53,506 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 58 proven. 8 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-09 18:01:53,506 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:01:53,592 INFO L134 CoverageAnalysis]: Checked inductivity of 230 backedges. 58 proven. 8 refuted. 0 times theorem prover too weak. 164 trivial. 0 not checked. [2024-11-09 18:01:53,592 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1078948202] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:01:53,592 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:01:53,593 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 19 [2024-11-09 18:01:53,593 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1971051871] [2024-11-09 18:01:53,593 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:01:53,593 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 18:01:53,593 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:01:53,596 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 18:01:53,596 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-09 18:01:53,596 INFO L87 Difference]: Start difference. First operand 55 states and 61 transitions. Second operand has 19 states, 19 states have (on average 4.052631578947368) internal successors, (77), 19 states have internal predecessors, (77), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 18:01:53,670 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:01:53,671 INFO L93 Difference]: Finished difference Result 104 states and 127 transitions. [2024-11-09 18:01:53,671 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 18:01:53,671 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 4.052631578947368) internal successors, (77), 19 states have internal predecessors, (77), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 82 [2024-11-09 18:01:53,672 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:01:53,672 INFO L225 Difference]: With dead ends: 104 [2024-11-09 18:01:53,673 INFO L226 Difference]: Without dead ends: 73 [2024-11-09 18:01:53,673 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 181 GetRequests, 164 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-09 18:01:53,674 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 17 mSDsluCounter, 154 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 17 SdHoareTripleChecker+Valid, 180 SdHoareTripleChecker+Invalid, 57 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:01:53,674 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [17 Valid, 180 Invalid, 57 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:01:53,675 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2024-11-09 18:01:53,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2024-11-09 18:01:53,684 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 68 states have (on average 1.1323529411764706) internal successors, (77), 68 states have internal predecessors, (77), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:01:53,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 83 transitions. [2024-11-09 18:01:53,686 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 83 transitions. Word has length 82 [2024-11-09 18:01:53,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:01:53,686 INFO L471 AbstractCegarLoop]: Abstraction has 73 states and 83 transitions. [2024-11-09 18:01:53,686 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.052631578947368) internal successors, (77), 19 states have internal predecessors, (77), 2 states have call successors, (6), 1 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 18:01:53,686 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 83 transitions. [2024-11-09 18:01:53,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 133 [2024-11-09 18:01:53,688 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:01:53,688 INFO L215 NwaCegarLoop]: trace histogram [21, 18, 18, 18, 12, 11, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:01:53,706 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2024-11-09 18:01:53,892 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:53,893 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:01:53,894 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:01:53,894 INFO L85 PathProgramCache]: Analyzing trace with hash 938021056, now seen corresponding path program 4 times [2024-11-09 18:01:53,894 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:01:53,894 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1594909663] [2024-11-09 18:01:53,895 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:53,895 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:01:53,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:54,223 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-09 18:01:54,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:54,235 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2024-11-09 18:01:54,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:54,252 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2024-11-09 18:01:54,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:54,262 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 744 trivial. 0 not checked. [2024-11-09 18:01:54,263 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:01:54,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1594909663] [2024-11-09 18:01:54,263 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1594909663] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:01:54,263 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1534482133] [2024-11-09 18:01:54,263 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 18:01:54,263 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:54,264 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:01:54,265 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:01:54,272 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2024-11-09 18:01:54,405 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 18:01:54,405 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:01:54,409 INFO L255 TraceCheckSpWp]: Trace formula consists of 489 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 18:01:54,412 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:01:54,523 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 342 proven. 72 refuted. 0 times theorem prover too weak. 462 trivial. 0 not checked. [2024-11-09 18:01:54,523 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:01:54,652 INFO L134 CoverageAnalysis]: Checked inductivity of 876 backedges. 0 proven. 418 refuted. 0 times theorem prover too weak. 458 trivial. 0 not checked. [2024-11-09 18:01:54,653 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1534482133] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:01:54,653 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:01:54,653 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 9, 9] total 28 [2024-11-09 18:01:54,653 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [644032303] [2024-11-09 18:01:54,653 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:01:54,654 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 28 states [2024-11-09 18:01:54,654 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:01:54,654 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 28 interpolants. [2024-11-09 18:01:54,655 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2024-11-09 18:01:54,655 INFO L87 Difference]: Start difference. First operand 73 states and 83 transitions. Second operand has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 18:01:54,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:01:54,756 INFO L93 Difference]: Finished difference Result 154 states and 193 transitions. [2024-11-09 18:01:54,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2024-11-09 18:01:54,756 INFO L78 Accepts]: Start accepts. Automaton has has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 132 [2024-11-09 18:01:54,756 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:01:54,757 INFO L225 Difference]: With dead ends: 154 [2024-11-09 18:01:54,757 INFO L226 Difference]: Without dead ends: 107 [2024-11-09 18:01:54,758 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 282 GetRequests, 256 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 154 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=210, Invalid=546, Unknown=0, NotChecked=0, Total=756 [2024-11-09 18:01:54,759 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 49 mSDsluCounter, 193 mSDsCounter, 0 mSdLazyCounter, 85 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 49 SdHoareTripleChecker+Valid, 219 SdHoareTripleChecker+Invalid, 87 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 85 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:01:54,759 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [49 Valid, 219 Invalid, 87 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 85 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:01:54,759 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-09 18:01:54,767 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-09 18:01:54,767 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 102 states have (on average 1.1666666666666667) internal successors, (119), 102 states have internal predecessors, (119), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:01:54,768 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 125 transitions. [2024-11-09 18:01:54,768 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 125 transitions. Word has length 132 [2024-11-09 18:01:54,768 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:01:54,768 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 125 transitions. [2024-11-09 18:01:54,769 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 28 states, 28 states have (on average 3.9642857142857144) internal successors, (111), 28 states have internal predecessors, (111), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 18:01:54,769 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 125 transitions. [2024-11-09 18:01:54,774 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 231 [2024-11-09 18:01:54,774 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:01:54,774 INFO L215 NwaCegarLoop]: trace histogram [45, 42, 42, 42, 13, 12, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:01:54,787 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2024-11-09 18:01:54,978 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:54,979 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:01:54,979 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:01:54,979 INFO L85 PathProgramCache]: Analyzing trace with hash -1222566449, now seen corresponding path program 5 times [2024-11-09 18:01:54,980 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:01:54,980 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238139862] [2024-11-09 18:01:54,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:54,980 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:01:55,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:55,265 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 18:01:55,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:55,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 93 [2024-11-09 18:01:55,286 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:55,293 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2024-11-09 18:01:55,300 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:55,308 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 3720 trivial. 0 not checked. [2024-11-09 18:01:55,308 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:01:55,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238139862] [2024-11-09 18:01:55,308 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238139862] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:01:55,308 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [409935159] [2024-11-09 18:01:55,308 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 18:01:55,308 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:55,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:01:55,310 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:01:55,311 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2024-11-09 18:01:55,616 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 29 check-sat command(s) [2024-11-09 18:01:55,617 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:01:55,620 INFO L255 TraceCheckSpWp]: Trace formula consists of 752 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 18:01:55,623 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:01:55,873 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 1686 proven. 392 refuted. 0 times theorem prover too weak. 1798 trivial. 0 not checked. [2024-11-09 18:01:55,873 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:01:56,261 INFO L134 CoverageAnalysis]: Checked inductivity of 3876 backedges. 0 proven. 2082 refuted. 0 times theorem prover too weak. 1794 trivial. 0 not checked. [2024-11-09 18:01:56,261 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [409935159] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:01:56,261 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:01:56,261 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 17, 17] total 45 [2024-11-09 18:01:56,262 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012478036] [2024-11-09 18:01:56,262 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:01:56,262 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2024-11-09 18:01:56,262 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:01:56,263 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2024-11-09 18:01:56,264 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=600, Invalid=1380, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 18:01:56,264 INFO L87 Difference]: Start difference. First operand 107 states and 125 transitions. Second operand has 45 states, 45 states have (on average 3.933333333333333) internal successors, (177), 45 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 18:01:56,383 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:01:56,383 INFO L93 Difference]: Finished difference Result 252 states and 323 transitions. [2024-11-09 18:01:56,383 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2024-11-09 18:01:56,384 INFO L78 Accepts]: Start accepts. Automaton has has 45 states, 45 states have (on average 3.933333333333333) internal successors, (177), 45 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) Word has length 230 [2024-11-09 18:01:56,384 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:01:56,385 INFO L225 Difference]: With dead ends: 252 [2024-11-09 18:01:56,385 INFO L226 Difference]: Without dead ends: 173 [2024-11-09 18:01:56,386 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 479 GetRequests, 436 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 360 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=600, Invalid=1380, Unknown=0, NotChecked=0, Total=1980 [2024-11-09 18:01:56,387 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 83 mSDsluCounter, 226 mSDsCounter, 0 mSdLazyCounter, 128 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 83 SdHoareTripleChecker+Valid, 252 SdHoareTripleChecker+Invalid, 130 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 128 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:01:56,387 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [83 Valid, 252 Invalid, 130 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 128 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:01:56,388 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 173 states. [2024-11-09 18:01:56,393 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 173 to 173. [2024-11-09 18:01:56,394 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 173 states, 168 states have (on average 1.1964285714285714) internal successors, (201), 168 states have internal predecessors, (201), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:01:56,395 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 173 states to 173 states and 207 transitions. [2024-11-09 18:01:56,395 INFO L78 Accepts]: Start accepts. Automaton has 173 states and 207 transitions. Word has length 230 [2024-11-09 18:01:56,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:01:56,395 INFO L471 AbstractCegarLoop]: Abstraction has 173 states and 207 transitions. [2024-11-09 18:01:56,395 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 3.933333333333333) internal successors, (177), 45 states have internal predecessors, (177), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 18:01:56,395 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states and 207 transitions. [2024-11-09 18:01:56,399 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 425 [2024-11-09 18:01:56,399 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:01:56,399 INFO L215 NwaCegarLoop]: trace histogram [93, 90, 90, 90, 14, 13, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:01:56,418 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2024-11-09 18:01:56,599 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2024-11-09 18:01:56,602 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:01:56,603 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:01:56,603 INFO L85 PathProgramCache]: Analyzing trace with hash -1755517138, now seen corresponding path program 6 times [2024-11-09 18:01:56,603 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:01:56,603 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [566381258] [2024-11-09 18:01:56,603 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:56,603 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:01:56,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:57,068 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 18:01:57,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:57,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 159 [2024-11-09 18:01:57,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:57,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 294 [2024-11-09 18:01:57,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:57,155 INFO L134 CoverageAnalysis]: Checked inductivity of 16766 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 16584 trivial. 0 not checked. [2024-11-09 18:01:57,156 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:01:57,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [566381258] [2024-11-09 18:01:57,156 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [566381258] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:01:57,156 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1731463299] [2024-11-09 18:01:57,156 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 18:01:57,156 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:57,156 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:01:57,158 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:01:57,165 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2024-11-09 18:01:57,358 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 7 check-sat command(s) [2024-11-09 18:01:57,358 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:01:57,360 INFO L255 TraceCheckSpWp]: Trace formula consists of 246 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 18:01:57,365 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:01:57,423 INFO L134 CoverageAnalysis]: Checked inductivity of 16766 backedges. 7452 proven. 6 refuted. 0 times theorem prover too weak. 9308 trivial. 0 not checked. [2024-11-09 18:01:57,424 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:01:57,492 INFO L134 CoverageAnalysis]: Checked inductivity of 16766 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 16760 trivial. 0 not checked. [2024-11-09 18:01:57,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1731463299] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:01:57,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:01:57,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 5, 5] total 22 [2024-11-09 18:01:57,493 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [111526075] [2024-11-09 18:01:57,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:01:57,495 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2024-11-09 18:01:57,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:01:57,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2024-11-09 18:01:57,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2024-11-09 18:01:57,496 INFO L87 Difference]: Start difference. First operand 173 states and 207 transitions. Second operand has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 18:01:57,534 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:01:57,535 INFO L93 Difference]: Finished difference Result 326 states and 398 transitions. [2024-11-09 18:01:57,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2024-11-09 18:01:57,535 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 424 [2024-11-09 18:01:57,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:01:57,536 INFO L225 Difference]: With dead ends: 326 [2024-11-09 18:01:57,537 INFO L226 Difference]: Without dead ends: 183 [2024-11-09 18:01:57,537 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 868 GetRequests, 848 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=147, Invalid=315, Unknown=0, NotChecked=0, Total=462 [2024-11-09 18:01:57,539 INFO L432 NwaCegarLoop]: 28 mSDtfsCounter, 0 mSDsluCounter, 210 mSDsCounter, 0 mSdLazyCounter, 48 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 238 SdHoareTripleChecker+Invalid, 49 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 48 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:01:57,539 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 238 Invalid, 49 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 48 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:01:57,540 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 183 states. [2024-11-09 18:01:57,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 183 to 183. [2024-11-09 18:01:57,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183 states, 178 states have (on average 1.1853932584269662) internal successors, (211), 178 states have internal predecessors, (211), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:01:57,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183 states to 183 states and 217 transitions. [2024-11-09 18:01:57,558 INFO L78 Accepts]: Start accepts. Automaton has 183 states and 217 transitions. Word has length 424 [2024-11-09 18:01:57,558 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:01:57,558 INFO L471 AbstractCegarLoop]: Abstraction has 183 states and 217 transitions. [2024-11-09 18:01:57,558 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 22 states have (on average 3.4545454545454546) internal successors, (76), 22 states have internal predecessors, (76), 2 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 18:01:57,558 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states and 217 transitions. [2024-11-09 18:01:57,563 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 435 [2024-11-09 18:01:57,563 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:01:57,563 INFO L215 NwaCegarLoop]: trace histogram [93, 90, 90, 90, 15, 14, 7, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:01:57,576 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Ended with exit code 0 [2024-11-09 18:01:57,764 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2024-11-09 18:01:57,764 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:01:57,765 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:01:57,765 INFO L85 PathProgramCache]: Analyzing trace with hash 1432009009, now seen corresponding path program 7 times [2024-11-09 18:01:57,765 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:01:57,765 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [687519847] [2024-11-09 18:01:57,765 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:57,765 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:01:57,833 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:58,229 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 18:01:58,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:58,254 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2024-11-09 18:01:58,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:58,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 304 [2024-11-09 18:01:58,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:58,307 INFO L134 CoverageAnalysis]: Checked inductivity of 16830 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 16620 trivial. 0 not checked. [2024-11-09 18:01:58,307 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:01:58,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [687519847] [2024-11-09 18:01:58,307 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [687519847] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:01:58,307 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [261964149] [2024-11-09 18:01:58,307 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 18:01:58,307 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:01:58,308 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:01:58,310 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:01:58,318 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2024-11-09 18:01:58,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:01:58,584 INFO L255 TraceCheckSpWp]: Trace formula consists of 1487 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 18:01:58,589 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:01:58,631 INFO L134 CoverageAnalysis]: Checked inductivity of 16830 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 16620 trivial. 0 not checked. [2024-11-09 18:01:58,632 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:01:58,924 INFO L134 CoverageAnalysis]: Checked inductivity of 16830 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 16620 trivial. 0 not checked. [2024-11-09 18:01:58,924 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [261964149] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:01:58,924 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:01:58,925 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2024-11-09 18:01:58,925 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1102414513] [2024-11-09 18:01:58,925 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:01:58,925 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 18:01:58,926 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:01:58,926 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 18:01:58,927 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 18:01:58,927 INFO L87 Difference]: Start difference. First operand 183 states and 217 transitions. Second operand has 33 states, 33 states have (on average 2.787878787878788) internal successors, (92), 33 states have internal predecessors, (92), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 18:01:58,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:01:58,979 INFO L93 Difference]: Finished difference Result 366 states and 449 transitions. [2024-11-09 18:01:58,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 18:01:58,979 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.787878787878788) internal successors, (92), 33 states have internal predecessors, (92), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 434 [2024-11-09 18:01:58,980 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:01:58,980 INFO L225 Difference]: With dead ends: 366 [2024-11-09 18:01:58,980 INFO L226 Difference]: Without dead ends: 215 [2024-11-09 18:01:58,981 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 889 GetRequests, 858 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 18:01:58,982 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 81 mSDsCounter, 0 mSdLazyCounter, 36 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 110 SdHoareTripleChecker+Invalid, 37 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 36 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:01:58,982 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 110 Invalid, 37 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 36 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:01:58,982 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 215 states. [2024-11-09 18:01:58,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 215 to 215. [2024-11-09 18:01:58,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 215 states, 210 states have (on average 1.1571428571428573) internal successors, (243), 210 states have internal predecessors, (243), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:01:58,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 215 states to 215 states and 249 transitions. [2024-11-09 18:01:58,988 INFO L78 Accepts]: Start accepts. Automaton has 215 states and 249 transitions. Word has length 434 [2024-11-09 18:01:58,989 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:01:58,989 INFO L471 AbstractCegarLoop]: Abstraction has 215 states and 249 transitions. [2024-11-09 18:01:58,989 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.787878787878788) internal successors, (92), 33 states have internal predecessors, (92), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 18:01:58,989 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states and 249 transitions. [2024-11-09 18:01:58,993 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 467 [2024-11-09 18:01:58,993 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:01:58,994 INFO L215 NwaCegarLoop]: trace histogram [93, 90, 90, 90, 31, 30, 7, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:01:59,011 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2024-11-09 18:01:59,197 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2024-11-09 18:01:59,198 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:01:59,198 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:01:59,198 INFO L85 PathProgramCache]: Analyzing trace with hash 1812046625, now seen corresponding path program 8 times [2024-11-09 18:01:59,199 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:01:59,199 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1224472628] [2024-11-09 18:01:59,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:01:59,199 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:01:59,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:00,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 18:02:00,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:00,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 193 [2024-11-09 18:02:00,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:00,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2024-11-09 18:02:00,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:00,373 INFO L134 CoverageAnalysis]: Checked inductivity of 17550 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 16620 trivial. 0 not checked. [2024-11-09 18:02:00,373 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:02:00,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1224472628] [2024-11-09 18:02:00,373 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1224472628] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:02:00,373 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1535869994] [2024-11-09 18:02:00,374 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 18:02:00,374 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:02:00,374 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:02:00,378 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:02:00,379 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2024-11-09 18:02:00,694 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 18:02:00,694 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:02:00,708 INFO L255 TraceCheckSpWp]: Trace formula consists of 1647 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 18:02:00,715 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:02:00,804 INFO L134 CoverageAnalysis]: Checked inductivity of 17550 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 16620 trivial. 0 not checked. [2024-11-09 18:02:00,804 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:02:01,569 INFO L134 CoverageAnalysis]: Checked inductivity of 17550 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 16620 trivial. 0 not checked. [2024-11-09 18:02:01,569 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1535869994] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:02:01,569 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:02:01,570 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 43 [2024-11-09 18:02:01,570 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [409784705] [2024-11-09 18:02:01,570 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:02:01,571 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 43 states [2024-11-09 18:02:01,571 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:02:01,572 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 43 interpolants. [2024-11-09 18:02:01,572 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 18:02:01,573 INFO L87 Difference]: Start difference. First operand 215 states and 249 transitions. Second operand has 43 states, 43 states have (on average 2.627906976744186) internal successors, (113), 43 states have internal predecessors, (113), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 18:02:01,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:02:01,620 INFO L93 Difference]: Finished difference Result 386 states and 463 transitions. [2024-11-09 18:02:01,620 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-09 18:02:01,620 INFO L78 Accepts]: Start accepts. Automaton has has 43 states, 43 states have (on average 2.627906976744186) internal successors, (113), 43 states have internal predecessors, (113), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) Word has length 466 [2024-11-09 18:02:01,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:02:01,622 INFO L225 Difference]: With dead ends: 386 [2024-11-09 18:02:01,622 INFO L226 Difference]: Without dead ends: 235 [2024-11-09 18:02:01,623 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 969 GetRequests, 906 SyntacticMatches, 22 SemanticMatches, 41 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 549 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=903, Invalid=903, Unknown=0, NotChecked=0, Total=1806 [2024-11-09 18:02:01,623 INFO L432 NwaCegarLoop]: 29 mSDtfsCounter, 0 mSDsluCounter, 115 mSDsCounter, 0 mSdLazyCounter, 47 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 144 SdHoareTripleChecker+Invalid, 47 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 47 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:02:01,624 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 144 Invalid, 47 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 47 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:02:01,625 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 235 states. [2024-11-09 18:02:01,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 235 to 235. [2024-11-09 18:02:01,632 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 235 states, 230 states have (on average 1.1434782608695653) internal successors, (263), 230 states have internal predecessors, (263), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:02:01,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 269 transitions. [2024-11-09 18:02:01,633 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 269 transitions. Word has length 466 [2024-11-09 18:02:01,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:02:01,634 INFO L471 AbstractCegarLoop]: Abstraction has 235 states and 269 transitions. [2024-11-09 18:02:01,634 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 43 states, 43 states have (on average 2.627906976744186) internal successors, (113), 43 states have internal predecessors, (113), 1 states have call successors, (6), 2 states have call predecessors, (6), 2 states have return successors, (6), 1 states have call predecessors, (6), 1 states have call successors, (6) [2024-11-09 18:02:01,634 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 269 transitions. [2024-11-09 18:02:01,636 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 487 [2024-11-09 18:02:01,637 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:02:01,637 INFO L215 NwaCegarLoop]: trace histogram [93, 90, 90, 90, 41, 40, 7, 6, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:02:01,663 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Ended with exit code 0 [2024-11-09 18:02:01,837 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2024-11-09 18:02:01,838 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:02:01,839 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:02:01,839 INFO L85 PathProgramCache]: Analyzing trace with hash 257494487, now seen corresponding path program 9 times [2024-11-09 18:02:01,839 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:02:01,839 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1038261093] [2024-11-09 18:02:01,839 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:02:01,839 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:02:02,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:02,873 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 18:02:02,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:03,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 213 [2024-11-09 18:02:03,553 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:03,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 356 [2024-11-09 18:02:03,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:03,594 INFO L134 CoverageAnalysis]: Checked inductivity of 18260 backedges. 0 proven. 9250 refuted. 0 times theorem prover too weak. 9010 trivial. 0 not checked. [2024-11-09 18:02:03,594 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:02:03,594 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1038261093] [2024-11-09 18:02:03,595 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1038261093] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:02:03,595 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [369870870] [2024-11-09 18:02:03,595 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 18:02:03,595 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:02:03,595 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:02:03,596 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:02:03,608 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2024-11-09 18:02:03,937 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 8 check-sat command(s) [2024-11-09 18:02:03,938 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:02:03,942 INFO L255 TraceCheckSpWp]: Trace formula consists of 383 conjuncts, 17 conjuncts are in the unsatisfiable core [2024-11-09 18:02:03,950 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:02:04,163 INFO L134 CoverageAnalysis]: Checked inductivity of 18260 backedges. 7452 proven. 42 refuted. 0 times theorem prover too weak. 10766 trivial. 0 not checked. [2024-11-09 18:02:04,164 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:02:04,429 INFO L134 CoverageAnalysis]: Checked inductivity of 18260 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 18218 trivial. 0 not checked. [2024-11-09 18:02:04,430 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [369870870] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:02:04,430 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:02:04,430 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 9, 9] total 47 [2024-11-09 18:02:04,431 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2006262084] [2024-11-09 18:02:04,431 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:02:04,432 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2024-11-09 18:02:04,432 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:02:04,433 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2024-11-09 18:02:04,434 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=647, Invalid=1515, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 18:02:04,434 INFO L87 Difference]: Start difference. First operand 235 states and 269 transitions. Second operand has 47 states, 47 states have (on average 3.9361702127659575) internal successors, (185), 47 states have internal predecessors, (185), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 18:02:04,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:02:04,613 INFO L93 Difference]: Finished difference Result 406 states and 486 transitions. [2024-11-09 18:02:04,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2024-11-09 18:02:04,614 INFO L78 Accepts]: Start accepts. Automaton has has 47 states, 47 states have (on average 3.9361702127659575) internal successors, (185), 47 states have internal predecessors, (185), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) Word has length 486 [2024-11-09 18:02:04,615 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:02:04,616 INFO L225 Difference]: With dead ends: 406 [2024-11-09 18:02:04,616 INFO L226 Difference]: Without dead ends: 257 [2024-11-09 18:02:04,618 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1009 GetRequests, 964 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 420 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=647, Invalid=1515, Unknown=0, NotChecked=0, Total=2162 [2024-11-09 18:02:04,618 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 89 mSDsluCounter, 250 mSDsCounter, 0 mSdLazyCounter, 135 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 89 SdHoareTripleChecker+Valid, 276 SdHoareTripleChecker+Invalid, 136 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 135 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:02:04,619 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [89 Valid, 276 Invalid, 136 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 135 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:02:04,619 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2024-11-09 18:02:04,626 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 255. [2024-11-09 18:02:04,627 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 255 states, 250 states have (on average 1.136) internal successors, (284), 250 states have internal predecessors, (284), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:02:04,628 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 255 states to 255 states and 290 transitions. [2024-11-09 18:02:04,629 INFO L78 Accepts]: Start accepts. Automaton has 255 states and 290 transitions. Word has length 486 [2024-11-09 18:02:04,629 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:02:04,629 INFO L471 AbstractCegarLoop]: Abstraction has 255 states and 290 transitions. [2024-11-09 18:02:04,630 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.9361702127659575) internal successors, (185), 47 states have internal predecessors, (185), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (6), 2 states have call predecessors, (6), 2 states have call successors, (6) [2024-11-09 18:02:04,630 INFO L276 IsEmpty]: Start isEmpty. Operand 255 states and 290 transitions. [2024-11-09 18:02:04,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 515 [2024-11-09 18:02:04,635 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:02:04,636 INFO L215 NwaCegarLoop]: trace histogram [96, 93, 93, 93, 41, 40, 15, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:02:04,655 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2024-11-09 18:02:04,836 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2024-11-09 18:02:04,837 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:02:04,837 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:02:04,838 INFO L85 PathProgramCache]: Analyzing trace with hash -876794911, now seen corresponding path program 10 times [2024-11-09 18:02:04,838 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:02:04,838 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1537797284] [2024-11-09 18:02:04,838 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:02:04,838 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:02:04,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:05,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 18:02:05,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:06,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 217 [2024-11-09 18:02:06,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:06,683 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 380 [2024-11-09 18:02:06,696 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:06,712 INFO L134 CoverageAnalysis]: Checked inductivity of 19538 backedges. 0 proven. 9868 refuted. 0 times theorem prover too weak. 9670 trivial. 0 not checked. [2024-11-09 18:02:06,713 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:02:06,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1537797284] [2024-11-09 18:02:06,713 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1537797284] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:02:06,713 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1152565357] [2024-11-09 18:02:06,713 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 18:02:06,713 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:02:06,713 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:02:06,715 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:02:06,717 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2024-11-09 18:02:07,194 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 18:02:07,195 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:02:07,206 INFO L255 TraceCheckSpWp]: Trace formula consists of 1850 conjuncts, 33 conjuncts are in the unsatisfiable core [2024-11-09 18:02:07,213 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:02:07,388 INFO L134 CoverageAnalysis]: Checked inductivity of 19538 backedges. 7942 proven. 1922 refuted. 0 times theorem prover too weak. 9674 trivial. 0 not checked. [2024-11-09 18:02:07,389 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:02:08,163 INFO L134 CoverageAnalysis]: Checked inductivity of 19538 backedges. 0 proven. 9868 refuted. 0 times theorem prover too weak. 9670 trivial. 0 not checked. [2024-11-09 18:02:08,164 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1152565357] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:02:08,164 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:02:08,164 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 34, 34] total 42 [2024-11-09 18:02:08,165 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [408363280] [2024-11-09 18:02:08,165 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:02:08,166 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 42 states [2024-11-09 18:02:08,166 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:02:08,167 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 42 interpolants. [2024-11-09 18:02:08,167 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 18:02:08,167 INFO L87 Difference]: Start difference. First operand 255 states and 290 transitions. Second operand has 42 states, 42 states have (on average 4.571428571428571) internal successors, (192), 42 states have internal predecessors, (192), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 18:02:08,370 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:02:08,370 INFO L93 Difference]: Finished difference Result 460 states and 549 transitions. [2024-11-09 18:02:08,371 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2024-11-09 18:02:08,371 INFO L78 Accepts]: Start accepts. Automaton has has 42 states, 42 states have (on average 4.571428571428571) internal successors, (192), 42 states have internal predecessors, (192), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) Word has length 514 [2024-11-09 18:02:08,371 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:02:08,373 INFO L225 Difference]: With dead ends: 460 [2024-11-09 18:02:08,373 INFO L226 Difference]: Without dead ends: 291 [2024-11-09 18:02:08,374 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 1066 GetRequests, 1002 SyntacticMatches, 24 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 468 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=861, Invalid=861, Unknown=0, NotChecked=0, Total=1722 [2024-11-09 18:02:08,375 INFO L432 NwaCegarLoop]: 27 mSDtfsCounter, 118 mSDsluCounter, 217 mSDsCounter, 0 mSdLazyCounter, 127 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 118 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 128 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 127 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:02:08,375 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [118 Valid, 244 Invalid, 128 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 127 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:02:08,376 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 291 states. [2024-11-09 18:02:08,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 291 to 291. [2024-11-09 18:02:08,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 291 states, 286 states have (on average 1.1503496503496504) internal successors, (329), 286 states have internal predecessors, (329), 3 states have call successors, (3), 1 states have call predecessors, (3), 1 states have return successors, (3), 3 states have call predecessors, (3), 3 states have call successors, (3) [2024-11-09 18:02:08,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 291 states to 291 states and 335 transitions. [2024-11-09 18:02:08,384 INFO L78 Accepts]: Start accepts. Automaton has 291 states and 335 transitions. Word has length 514 [2024-11-09 18:02:08,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:02:08,385 INFO L471 AbstractCegarLoop]: Abstraction has 291 states and 335 transitions. [2024-11-09 18:02:08,385 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 42 states, 42 states have (on average 4.571428571428571) internal successors, (192), 42 states have internal predecessors, (192), 2 states have call successors, (5), 2 states have call predecessors, (5), 2 states have return successors, (5), 1 states have call predecessors, (5), 2 states have call successors, (5) [2024-11-09 18:02:08,385 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states and 335 transitions. [2024-11-09 18:02:08,389 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 623 [2024-11-09 18:02:08,389 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:02:08,389 INFO L215 NwaCegarLoop]: trace histogram [123, 120, 120, 120, 41, 40, 15, 14, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:02:08,412 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2024-11-09 18:02:08,593 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable13 [2024-11-09 18:02:08,594 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:02:08,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:02:08,595 INFO L85 PathProgramCache]: Analyzing trace with hash -1269467661, now seen corresponding path program 11 times [2024-11-09 18:02:08,595 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:02:08,595 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [855729588] [2024-11-09 18:02:08,595 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:02:08,595 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:02:08,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:09,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 85 [2024-11-09 18:02:09,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:09,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 253 [2024-11-09 18:02:09,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:09,838 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 452 [2024-11-09 18:02:09,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:02:09,879 INFO L134 CoverageAnalysis]: Checked inductivity of 31148 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 30938 trivial. 0 not checked. [2024-11-09 18:02:09,879 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:02:09,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [855729588] [2024-11-09 18:02:09,880 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [855729588] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:02:09,880 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1315470191] [2024-11-09 18:02:09,880 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 18:02:09,880 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:02:09,880 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:02:09,882 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2024-11-09 18:02:09,884 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process