./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/array-crafted/mapsum2.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/array-crafted/mapsum2.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 981715b042dc751421769388e93842bdf7028c46e115693f476b30e4e763298a --- Real Ultimate output --- This is Ultimate 0.2.5-tmp.fs.icfgbuilder-eval-023d838-m [2024-11-09 18:10:35,867 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-11-09 18:10:35,939 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-11-09 18:10:35,946 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-11-09 18:10:35,948 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-11-09 18:10:35,980 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-11-09 18:10:35,982 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-11-09 18:10:35,982 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-11-09 18:10:35,983 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-11-09 18:10:35,984 INFO L153 SettingsManager]: * Use memory slicer=true [2024-11-09 18:10:35,985 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-11-09 18:10:35,985 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-11-09 18:10:35,986 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-11-09 18:10:35,988 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-11-09 18:10:35,989 INFO L153 SettingsManager]: * Use SBE=true [2024-11-09 18:10:35,989 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-11-09 18:10:35,989 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-11-09 18:10:35,990 INFO L153 SettingsManager]: * sizeof long=4 [2024-11-09 18:10:35,990 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-11-09 18:10:35,990 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-11-09 18:10:35,991 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-11-09 18:10:35,994 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-11-09 18:10:35,995 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-11-09 18:10:35,995 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-11-09 18:10:35,995 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-11-09 18:10:35,995 INFO L153 SettingsManager]: * sizeof long double=12 [2024-11-09 18:10:35,996 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-11-09 18:10:35,996 INFO L153 SettingsManager]: * Use constant arrays=true [2024-11-09 18:10:35,996 INFO L151 SettingsManager]: Preferences of IcfgBuilder differ from their defaults: [2024-11-09 18:10:35,996 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-11-09 18:10:35,997 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-11-09 18:10:35,997 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-11-09 18:10:35,997 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 18:10:35,997 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-11-09 18:10:35,998 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-11-09 18:10:35,998 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-11-09 18:10:36,001 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-11-09 18:10:36,001 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-11-09 18:10:36,001 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-11-09 18:10:36,002 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-11-09 18:10:36,003 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-11-09 18:10:36,003 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-11-09 18:10:36,003 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 981715b042dc751421769388e93842bdf7028c46e115693f476b30e4e763298a [2024-11-09 18:10:36,278 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-11-09 18:10:36,298 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-11-09 18:10:36,303 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-11-09 18:10:36,304 INFO L270 PluginConnector]: Initializing CDTParser... [2024-11-09 18:10:36,305 INFO L274 PluginConnector]: CDTParser initialized [2024-11-09 18:10:36,306 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-crafted/mapsum2.i [2024-11-09 18:10:37,850 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-11-09 18:10:38,043 INFO L384 CDTParser]: Found 1 translation units. [2024-11-09 18:10:38,044 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-crafted/mapsum2.i [2024-11-09 18:10:38,052 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d69f2ea/83d275812c7b4e0699fe2ff53999bdda/FLAG583a1df49 [2024-11-09 18:10:38,069 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/08d69f2ea/83d275812c7b4e0699fe2ff53999bdda [2024-11-09 18:10:38,072 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-11-09 18:10:38,074 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-11-09 18:10:38,075 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-11-09 18:10:38,076 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-11-09 18:10:38,082 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-11-09 18:10:38,083 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,084 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@bad613a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38, skipping insertion in model container [2024-11-09 18:10:38,084 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,107 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-11-09 18:10:38,419 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/array-crafted/mapsum2.i[1306,1319] [2024-11-09 18:10:38,427 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 18:10:38,436 INFO L200 MainTranslator]: Completed pre-run [2024-11-09 18:10:38,463 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/array-crafted/mapsum2.i[1306,1319] [2024-11-09 18:10:38,469 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-11-09 18:10:38,490 INFO L204 MainTranslator]: Completed translation [2024-11-09 18:10:38,490 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38 WrapperNode [2024-11-09 18:10:38,491 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-11-09 18:10:38,492 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-11-09 18:10:38,492 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-11-09 18:10:38,492 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-11-09 18:10:38,500 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,512 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,536 INFO L138 Inliner]: procedures = 16, calls = 22, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 67 [2024-11-09 18:10:38,540 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-11-09 18:10:38,541 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-11-09 18:10:38,541 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-11-09 18:10:38,541 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-11-09 18:10:38,554 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,554 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,557 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,571 INFO L175 MemorySlicer]: Split 12 memory accesses to 2 slices as follows [2, 10]. 83 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 18:10:38,571 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,572 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,577 INFO L184 PluginConnector]: Executing the observer ReplaceArrayAssignments from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,578 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,579 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,580 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,582 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-11-09 18:10:38,583 INFO L112 PluginConnector]: ------------------------IcfgBuilder---------------------------- [2024-11-09 18:10:38,583 INFO L270 PluginConnector]: Initializing IcfgBuilder... [2024-11-09 18:10:38,583 INFO L274 PluginConnector]: IcfgBuilder initialized [2024-11-09 18:10:38,584 INFO L184 PluginConnector]: Executing the observer IcfgBuilderObserver from plugin IcfgBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38" (1/1) ... [2024-11-09 18:10:38,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-11-09 18:10:38,601 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:10:38,616 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 18:10:38,619 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 18:10:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-11-09 18:10:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure mapsum [2024-11-09 18:10:38,663 INFO L138 BoogieDeclarations]: Found implementation of procedure mapsum [2024-11-09 18:10:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-11-09 18:10:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2024-11-09 18:10:38,663 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2024-11-09 18:10:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2024-11-09 18:10:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2024-11-09 18:10:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-11-09 18:10:38,664 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-11-09 18:10:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2024-11-09 18:10:38,664 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2024-11-09 18:10:38,665 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2024-11-09 18:10:38,744 INFO L256 CfgBuilder]: Building ICFG [2024-11-09 18:10:38,746 INFO L286 CfgBuilder]: Building CFG for each procedure with an implementation [2024-11-09 18:10:38,913 INFO L1247 $ProcedureCfgBuilder]: dead code at ProgramPoint L31: 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 18:10:38,923 INFO L? ?]: Removed 14 outVars from TransFormulas that were not future-live. [2024-11-09 18:10:38,923 INFO L307 CfgBuilder]: Performing block encoding [2024-11-09 18:10:38,937 INFO L331 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-11-09 18:10:38,937 INFO L336 CfgBuilder]: Removed 0 assume(true) statements. [2024-11-09 18:10:38,937 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:10:38 BoogieIcfgContainer [2024-11-09 18:10:38,937 INFO L131 PluginConnector]: ------------------------ END IcfgBuilder---------------------------- [2024-11-09 18:10:38,940 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-11-09 18:10:38,940 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-11-09 18:10:38,943 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-11-09 18:10:38,943 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 09.11 06:10:38" (1/3) ... [2024-11-09 18:10:38,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b578cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:10:38, skipping insertion in model container [2024-11-09 18:10:38,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 09.11 06:10:38" (2/3) ... [2024-11-09 18:10:38,944 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b578cd5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 09.11 06:10:38, skipping insertion in model container [2024-11-09 18:10:38,944 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.icfgbuilder CFG 09.11 06:10:38" (3/3) ... [2024-11-09 18:10:38,946 INFO L112 eAbstractionObserver]: Analyzing ICFG mapsum2.i [2024-11-09 18:10:38,962 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-11-09 18:10:38,962 INFO L154 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-11-09 18:10:39,021 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-11-09 18:10:39,029 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;@419b9ccb, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-11-09 18:10:39,030 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-11-09 18:10:39,036 INFO L276 IsEmpty]: Start isEmpty. Operand has 27 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 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 18:10:39,044 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 30 [2024-11-09 18:10:39,045 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:39,047 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 18:10:39,047 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:39,053 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:39,054 INFO L85 PathProgramCache]: Analyzing trace with hash -1132361884, now seen corresponding path program 1 times [2024-11-09 18:10:39,070 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:39,071 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [946469402] [2024-11-09 18:10:39,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:39,073 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:39,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:39,291 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 4 [2024-11-09 18:10:39,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:39,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 11 [2024-11-09 18:10:39,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:39,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2024-11-09 18:10:39,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:39,351 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 18:10:39,352 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:10:39,352 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [946469402] [2024-11-09 18:10:39,353 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [946469402] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:10:39,353 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-11-09 18:10:39,353 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-11-09 18:10:39,355 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1434559153] [2024-11-09 18:10:39,356 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:10:39,364 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-11-09 18:10:39,365 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:10:39,399 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-11-09 18:10:39,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-11-09 18:10:39,403 INFO L87 Difference]: Start difference. First operand has 27 states, 21 states have (on average 1.380952380952381) internal successors, (29), 22 states have internal predecessors, (29), 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 18:10:39,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:10:39,428 INFO L93 Difference]: Finished difference Result 50 states and 67 transitions. [2024-11-09 18:10:39,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-11-09 18:10:39,431 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 18:10:39,432 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:10:39,438 INFO L225 Difference]: With dead ends: 50 [2024-11-09 18:10:39,439 INFO L226 Difference]: Without dead ends: 23 [2024-11-09 18:10:39,443 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 18:10:39,449 INFO L432 NwaCegarLoop]: 31 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, 31 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 18:10:39,451 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 31 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 0 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:10:39,468 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2024-11-09 18:10:39,489 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2024-11-09 18:10:39,492 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 18 states have (on average 1.1666666666666667) internal successors, (21), 18 states have internal predecessors, (21), 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 18:10:39,494 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 27 transitions. [2024-11-09 18:10:39,497 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 27 transitions. Word has length 29 [2024-11-09 18:10:39,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:10:39,498 INFO L471 AbstractCegarLoop]: Abstraction has 23 states and 27 transitions. [2024-11-09 18:10:39,499 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 18:10:39,499 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 27 transitions. [2024-11-09 18:10:39,501 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2024-11-09 18:10:39,501 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:39,502 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 18:10:39,502 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-11-09 18:10:39,502 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:39,504 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:39,504 INFO L85 PathProgramCache]: Analyzing trace with hash 731602688, now seen corresponding path program 1 times [2024-11-09 18:10:39,505 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:39,506 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1899765258] [2024-11-09 18:10:39,506 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:39,506 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:39,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:39,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 5 [2024-11-09 18:10:39,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:39,712 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-09 18:10:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:39,726 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-11-09 18:10:39,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:39,763 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 18:10:39,764 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:10:39,764 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1899765258] [2024-11-09 18:10:39,765 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1899765258] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:10:39,766 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [978488152] [2024-11-09 18:10:39,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:39,767 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:10:39,767 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:10:39,770 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 18:10:39,773 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 18:10:39,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:39,890 INFO L255 TraceCheckSpWp]: Trace formula consists of 129 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 18:10:39,899 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:10:39,938 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 18:10:39,939 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 18:10:39,939 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [978488152] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:10:39,941 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 18:10:39,941 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [4] total 5 [2024-11-09 18:10:39,942 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [153980127] [2024-11-09 18:10:39,943 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:10:39,943 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:10:39,944 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:10:39,945 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:10:39,945 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 18:10:39,946 INFO L87 Difference]: Start difference. First operand 23 states and 27 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 18:10:39,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:10:39,964 INFO L93 Difference]: Finished difference Result 44 states and 52 transitions. [2024-11-09 18:10:39,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:10:39,965 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 18:10:39,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:10:39,966 INFO L225 Difference]: With dead ends: 44 [2024-11-09 18:10:39,967 INFO L226 Difference]: Without dead ends: 25 [2024-11-09 18:10:39,967 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 18:10:39,968 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 23 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 49 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 18:10:39,969 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 49 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:10:39,971 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 25 states. [2024-11-09 18:10:39,977 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 25 to 25. [2024-11-09 18:10:39,979 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 20 states have (on average 1.15) internal successors, (23), 20 states have internal predecessors, (23), 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 18:10:39,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 29 transitions. [2024-11-09 18:10:39,981 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 29 transitions. Word has length 34 [2024-11-09 18:10:39,981 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:10:39,981 INFO L471 AbstractCegarLoop]: Abstraction has 25 states and 29 transitions. [2024-11-09 18:10:39,981 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 18:10:39,982 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 29 transitions. [2024-11-09 18:10:39,983 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 37 [2024-11-09 18:10:39,984 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:39,985 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 18:10:40,001 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2024-11-09 18:10:40,185 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 18:10:40,186 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:40,186 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:40,187 INFO L85 PathProgramCache]: Analyzing trace with hash -969275553, now seen corresponding path program 1 times [2024-11-09 18:10:40,187 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:40,187 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1154849022] [2024-11-09 18:10:40,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:40,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:40,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:40,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 18:10:40,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:40,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 15 [2024-11-09 18:10:40,348 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:40,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2024-11-09 18:10:40,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:40,383 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 18:10:40,385 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:10:40,385 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1154849022] [2024-11-09 18:10:40,385 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1154849022] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:10:40,386 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [536782737] [2024-11-09 18:10:40,386 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:40,386 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:10:40,387 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:10:40,389 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 18:10:40,391 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 18:10:40,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:40,471 INFO L255 TraceCheckSpWp]: Trace formula consists of 139 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 18:10:40,473 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:10:40,491 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 18:10:40,491 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 18:10:40,492 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [536782737] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:10:40,492 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 18:10:40,492 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [5] total 5 [2024-11-09 18:10:40,492 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077626598] [2024-11-09 18:10:40,492 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:10:40,493 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:10:40,493 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:10:40,494 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:10:40,494 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2024-11-09 18:10:40,494 INFO L87 Difference]: Start difference. First operand 25 states and 29 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 18:10:40,503 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:10:40,505 INFO L93 Difference]: Finished difference Result 44 states and 54 transitions. [2024-11-09 18:10:40,505 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:10:40,506 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 18:10:40,506 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:10:40,508 INFO L225 Difference]: With dead ends: 44 [2024-11-09 18:10:40,509 INFO L226 Difference]: Without dead ends: 27 [2024-11-09 18:10:40,510 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 18:10:40,512 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 24 mSDsCounter, 0 mSdLazyCounter, 3 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 50 SdHoareTripleChecker+Invalid, 3 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 3 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:10:40,513 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 50 Invalid, 3 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 3 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:10:40,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27 states. [2024-11-09 18:10:40,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27 to 27. [2024-11-09 18:10:40,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 27 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 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 18:10:40,521 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 27 states to 27 states and 31 transitions. [2024-11-09 18:10:40,522 INFO L78 Accepts]: Start accepts. Automaton has 27 states and 31 transitions. Word has length 36 [2024-11-09 18:10:40,522 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:10:40,523 INFO L471 AbstractCegarLoop]: Abstraction has 27 states and 31 transitions. [2024-11-09 18:10:40,523 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 18:10:40,524 INFO L276 IsEmpty]: Start isEmpty. Operand 27 states and 31 transitions. [2024-11-09 18:10:40,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 43 [2024-11-09 18:10:40,527 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:40,527 INFO L215 NwaCegarLoop]: trace histogram [6, 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 18:10:40,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2024-11-09 18:10:40,731 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 18:10:40,732 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:40,733 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:40,733 INFO L85 PathProgramCache]: Analyzing trace with hash -1262243008, now seen corresponding path program 1 times [2024-11-09 18:10:40,733 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:40,733 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [569042625] [2024-11-09 18:10:40,733 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:40,733 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:40,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:40,800 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 18:10:40,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:40,843 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 18:10:40,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:40,855 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2024-11-09 18:10:40,861 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:40,868 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 18 trivial. 0 not checked. [2024-11-09 18:10:40,870 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:10:40,870 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [569042625] [2024-11-09 18:10:40,871 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [569042625] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:10:40,871 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1428304241] [2024-11-09 18:10:40,871 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:40,871 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:10:40,871 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:10:40,873 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 18:10:40,875 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 18:10:40,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:40,946 INFO L255 TraceCheckSpWp]: Trace formula consists of 157 conjuncts, 2 conjuncts are in the unsatisfiable core [2024-11-09 18:10:40,948 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:10:40,964 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 24 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 18:10:40,965 INFO L307 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2024-11-09 18:10:40,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1428304241] provided 1 perfect and 0 imperfect interpolant sequences [2024-11-09 18:10:40,965 INFO L185 FreeRefinementEngine]: Found 1 perfect and 1 imperfect interpolant sequences. [2024-11-09 18:10:40,965 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [6] total 7 [2024-11-09 18:10:40,966 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [992252951] [2024-11-09 18:10:40,966 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-11-09 18:10:40,966 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-11-09 18:10:40,966 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:10:40,967 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-11-09 18:10:40,967 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2024-11-09 18:10:40,967 INFO L87 Difference]: Start difference. First operand 27 states and 31 transitions. Second operand has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 18:10:40,979 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:10:40,980 INFO L93 Difference]: Finished difference Result 43 states and 48 transitions. [2024-11-09 18:10:40,980 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-11-09 18:10:40,980 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 42 [2024-11-09 18:10:40,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:10:40,981 INFO L225 Difference]: With dead ends: 43 [2024-11-09 18:10:40,982 INFO L226 Difference]: Without dead ends: 29 [2024-11-09 18:10:40,982 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 48 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 18:10:40,983 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 22 mSDsCounter, 0 mSdLazyCounter, 5 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 48 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 18:10:40,983 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 48 Invalid, 5 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 5 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:10:40,984 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2024-11-09 18:10:40,987 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2024-11-09 18:10:40,987 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 24 states have (on average 1.125) internal successors, (27), 24 states have internal predecessors, (27), 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 18:10:40,988 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 33 transitions. [2024-11-09 18:10:40,988 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 33 transitions. Word has length 42 [2024-11-09 18:10:40,990 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:10:40,990 INFO L471 AbstractCegarLoop]: Abstraction has 29 states and 33 transitions. [2024-11-09 18:10:40,990 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 8.666666666666666) internal successors, (26), 3 states have internal predecessors, (26), 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 18:10:40,990 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 33 transitions. [2024-11-09 18:10:40,991 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2024-11-09 18:10:40,991 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:40,992 INFO L215 NwaCegarLoop]: trace histogram [6, 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 18:10:41,010 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 18:10:41,195 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 18:10:41,196 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:41,196 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:41,196 INFO L85 PathProgramCache]: Analyzing trace with hash -103386527, now seen corresponding path program 1 times [2024-11-09 18:10:41,197 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:41,197 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [875933047] [2024-11-09 18:10:41,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:41,197 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:41,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:41,279 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-11-09 18:10:41,284 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:41,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2024-11-09 18:10:41,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:41,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2024-11-09 18:10:41,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:41,344 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 26 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2024-11-09 18:10:41,345 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:10:41,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [875933047] [2024-11-09 18:10:41,345 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [875933047] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:10:41,345 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1727424162] [2024-11-09 18:10:41,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:41,346 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:10:41,346 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:10:41,348 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 18:10:41,349 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 18:10:41,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:41,427 INFO L255 TraceCheckSpWp]: Trace formula consists of 165 conjuncts, 3 conjuncts are in the unsatisfiable core [2024-11-09 18:10:41,429 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:10:41,476 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 18:10:41,480 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:10:41,558 INFO L134 CoverageAnalysis]: Checked inductivity of 46 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 44 trivial. 0 not checked. [2024-11-09 18:10:41,562 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1727424162] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:10:41,563 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:10:41,563 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 4, 4] total 9 [2024-11-09 18:10:41,563 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [130489741] [2024-11-09 18:10:41,563 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:10:41,564 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-11-09 18:10:41,564 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:10:41,565 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-11-09 18:10:41,565 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=46, Unknown=0, NotChecked=0, Total=72 [2024-11-09 18:10:41,565 INFO L87 Difference]: Start difference. First operand 29 states and 33 transitions. Second operand has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 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 18:10:41,598 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:10:41,600 INFO L93 Difference]: Finished difference Result 60 states and 74 transitions. [2024-11-09 18:10:41,601 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-11-09 18:10:41,601 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 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 44 [2024-11-09 18:10:41,601 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:10:41,602 INFO L225 Difference]: With dead ends: 60 [2024-11-09 18:10:41,602 INFO L226 Difference]: Without dead ends: 37 [2024-11-09 18:10:41,603 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 98 GetRequests, 91 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 18:10:41,604 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 72 mSDsCounter, 0 mSdLazyCounter, 16 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 97 SdHoareTripleChecker+Invalid, 17 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 16 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:10:41,605 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 97 Invalid, 17 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 16 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:10:41,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2024-11-09 18:10:41,612 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 37. [2024-11-09 18:10:41,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 37 states, 32 states have (on average 1.09375) internal successors, (35), 32 states have internal predecessors, (35), 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 18:10:41,614 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 37 states to 37 states and 41 transitions. [2024-11-09 18:10:41,617 INFO L78 Accepts]: Start accepts. Automaton has 37 states and 41 transitions. Word has length 44 [2024-11-09 18:10:41,617 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:10:41,617 INFO L471 AbstractCegarLoop]: Abstraction has 37 states and 41 transitions. [2024-11-09 18:10:41,618 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 4.555555555555555) internal successors, (41), 9 states have internal predecessors, (41), 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 18:10:41,618 INFO L276 IsEmpty]: Start isEmpty. Operand 37 states and 41 transitions. [2024-11-09 18:10:41,619 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 57 [2024-11-09 18:10:41,619 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:41,619 INFO L215 NwaCegarLoop]: trace histogram [9, 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 18:10:41,639 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 18:10:41,820 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 18:10:41,820 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:41,821 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:41,821 INFO L85 PathProgramCache]: Analyzing trace with hash 1352748959, now seen corresponding path program 2 times [2024-11-09 18:10:41,821 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:41,821 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [8132186] [2024-11-09 18:10:41,821 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:41,821 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:41,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:41,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-11-09 18:10:41,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:41,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 18:10:41,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:41,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2024-11-09 18:10:41,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:41,995 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2024-11-09 18:10:41,996 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:10:41,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [8132186] [2024-11-09 18:10:41,996 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [8132186] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:10:41,996 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [755477675] [2024-11-09 18:10:41,996 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 18:10:41,996 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:10:41,997 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:10:42,000 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 18:10:42,002 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 18:10:42,088 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 18:10:42,088 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:10:42,090 INFO L255 TraceCheckSpWp]: Trace formula consists of 213 conjuncts, 6 conjuncts are in the unsatisfiable core [2024-11-09 18:10:42,092 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:10:42,144 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-09 18:10:42,145 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:10:42,239 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 0 proven. 20 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2024-11-09 18:10:42,239 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [755477675] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:10:42,239 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:10:42,240 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 7, 7] total 14 [2024-11-09 18:10:42,240 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1565549966] [2024-11-09 18:10:42,240 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:10:42,240 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2024-11-09 18:10:42,241 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:10:42,242 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2024-11-09 18:10:42,242 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=71, Invalid=111, Unknown=0, NotChecked=0, Total=182 [2024-11-09 18:10:42,242 INFO L87 Difference]: Start difference. First operand 37 states and 41 transitions. Second operand has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 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 18:10:42,275 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:10:42,275 INFO L93 Difference]: Finished difference Result 76 states and 90 transitions. [2024-11-09 18:10:42,276 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2024-11-09 18:10:42,276 INFO L78 Accepts]: Start accepts. Automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 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 56 [2024-11-09 18:10:42,276 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:10:42,277 INFO L225 Difference]: With dead ends: 76 [2024-11-09 18:10:42,277 INFO L226 Difference]: Without dead ends: 51 [2024-11-09 18:10:42,278 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 108 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 18:10:42,279 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 74 mSDsCounter, 0 mSdLazyCounter, 24 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 99 SdHoareTripleChecker+Invalid, 25 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 24 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:10:42,279 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 99 Invalid, 25 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 24 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:10:42,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51 states. [2024-11-09 18:10:42,284 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51 to 51. [2024-11-09 18:10:42,285 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 51 states, 46 states have (on average 1.065217391304348) internal successors, (49), 46 states have internal predecessors, (49), 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 18:10:42,286 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51 states to 51 states and 55 transitions. [2024-11-09 18:10:42,286 INFO L78 Accepts]: Start accepts. Automaton has 51 states and 55 transitions. Word has length 56 [2024-11-09 18:10:42,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:10:42,286 INFO L471 AbstractCegarLoop]: Abstraction has 51 states and 55 transitions. [2024-11-09 18:10:42,286 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 4.0) internal successors, (56), 14 states have internal predecessors, (56), 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 18:10:42,286 INFO L276 IsEmpty]: Start isEmpty. Operand 51 states and 55 transitions. [2024-11-09 18:10:42,287 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2024-11-09 18:10:42,287 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:42,287 INFO L215 NwaCegarLoop]: trace histogram [11, 10, 9, 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 18:10:42,306 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 18:10:42,488 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 18:10:42,489 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:42,489 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:42,489 INFO L85 PathProgramCache]: Analyzing trace with hash -968122758, now seen corresponding path program 3 times [2024-11-09 18:10:42,489 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:42,489 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [599555621] [2024-11-09 18:10:42,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:42,490 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:42,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:42,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2024-11-09 18:10:42,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:42,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2024-11-09 18:10:42,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:42,771 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 56 [2024-11-09 18:10:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:42,792 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 110 refuted. 0 times theorem prover too weak. 90 trivial. 0 not checked. [2024-11-09 18:10:42,792 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:10:42,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [599555621] [2024-11-09 18:10:42,792 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [599555621] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:10:42,792 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [682030459] [2024-11-09 18:10:42,793 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 18:10:42,793 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:10:42,793 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:10:42,795 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 18:10:42,797 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 18:10:42,885 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 3 check-sat command(s) [2024-11-09 18:10:42,886 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:10:42,887 INFO L255 TraceCheckSpWp]: Trace formula consists of 142 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 18:10:42,889 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:10:42,939 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-09 18:10:42,940 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:10:43,024 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 42 proven. 6 refuted. 0 times theorem prover too weak. 152 trivial. 0 not checked. [2024-11-09 18:10:43,024 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [682030459] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:10:43,024 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:10:43,025 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 5, 5] total 19 [2024-11-09 18:10:43,025 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1139865731] [2024-11-09 18:10:43,025 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:10:43,026 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2024-11-09 18:10:43,026 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:10:43,027 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2024-11-09 18:10:43,028 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=105, Invalid=237, Unknown=0, NotChecked=0, Total=342 [2024-11-09 18:10:43,028 INFO L87 Difference]: Start difference. First operand 51 states and 55 transitions. Second operand has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 19 states have internal predecessors, (67), 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 18:10:43,095 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:10:43,096 INFO L93 Difference]: Finished difference Result 88 states and 103 transitions. [2024-11-09 18:10:43,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2024-11-09 18:10:43,096 INFO L78 Accepts]: Start accepts. Automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 19 states have internal predecessors, (67), 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 70 [2024-11-09 18:10:43,097 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:10:43,097 INFO L225 Difference]: With dead ends: 88 [2024-11-09 18:10:43,097 INFO L226 Difference]: Without dead ends: 61 [2024-11-09 18:10:43,098 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 157 GetRequests, 140 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 18:10:43,099 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 188 mSDsCounter, 0 mSdLazyCounter, 40 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 213 SdHoareTripleChecker+Invalid, 41 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 40 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:10:43,099 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 213 Invalid, 41 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 40 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:10:43,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 61 states. [2024-11-09 18:10:43,109 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 61 to 61. [2024-11-09 18:10:43,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 56 states have (on average 1.0535714285714286) internal successors, (59), 56 states have internal predecessors, (59), 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 18:10:43,112 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 65 transitions. [2024-11-09 18:10:43,114 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 65 transitions. Word has length 70 [2024-11-09 18:10:43,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:10:43,114 INFO L471 AbstractCegarLoop]: Abstraction has 61 states and 65 transitions. [2024-11-09 18:10:43,114 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 3.526315789473684) internal successors, (67), 19 states have internal predecessors, (67), 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 18:10:43,115 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 65 transitions. [2024-11-09 18:10:43,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2024-11-09 18:10:43,116 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:43,116 INFO L215 NwaCegarLoop]: trace histogram [21, 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 18:10:43,136 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2024-11-09 18:10:43,322 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 18:10:43,323 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:43,323 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:43,323 INFO L85 PathProgramCache]: Analyzing trace with hash 1253591645, now seen corresponding path program 4 times [2024-11-09 18:10:43,323 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:43,324 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [971052096] [2024-11-09 18:10:43,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:43,324 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:43,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:43,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 27 [2024-11-09 18:10:43,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:43,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 47 [2024-11-09 18:10:43,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:43,682 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 74 [2024-11-09 18:10:43,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:43,692 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 132 refuted. 0 times theorem prover too weak. 438 trivial. 0 not checked. [2024-11-09 18:10:43,693 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:10:43,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [971052096] [2024-11-09 18:10:43,693 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [971052096] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:10:43,693 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [254047047] [2024-11-09 18:10:43,693 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 18:10:43,693 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:10:43,694 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:10:43,695 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 18:10:43,697 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 18:10:43,816 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 18:10:43,817 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:10:43,820 INFO L255 TraceCheckSpWp]: Trace formula consists of 363 conjuncts, 4 conjuncts are in the unsatisfiable core [2024-11-09 18:10:43,839 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:10:43,882 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 204 proven. 6 refuted. 0 times theorem prover too weak. 360 trivial. 0 not checked. [2024-11-09 18:10:43,882 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:10:43,951 INFO L134 CoverageAnalysis]: Checked inductivity of 570 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 564 trivial. 0 not checked. [2024-11-09 18:10:43,952 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [254047047] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:10:43,952 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:10:43,953 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 5, 5] total 20 [2024-11-09 18:10:43,953 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350299312] [2024-11-09 18:10:43,953 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:10:43,953 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2024-11-09 18:10:43,953 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:10:43,954 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2024-11-09 18:10:43,955 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-09 18:10:43,955 INFO L87 Difference]: Start difference. First operand 61 states and 65 transitions. Second operand has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 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 18:10:44,011 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:10:44,011 INFO L93 Difference]: Finished difference Result 106 states and 118 transitions. [2024-11-09 18:10:44,012 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2024-11-09 18:10:44,012 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 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 96 [2024-11-09 18:10:44,012 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:10:44,013 INFO L225 Difference]: With dead ends: 106 [2024-11-09 18:10:44,013 INFO L226 Difference]: Without dead ends: 71 [2024-11-09 18:10:44,014 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 210 GetRequests, 192 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=118, Invalid=262, Unknown=0, NotChecked=0, Total=380 [2024-11-09 18:10:44,017 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 225 mSDsCounter, 0 mSdLazyCounter, 53 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 250 SdHoareTripleChecker+Invalid, 54 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 53 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:10:44,017 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 250 Invalid, 54 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 53 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:10:44,019 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 71 states. [2024-11-09 18:10:44,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 71 to 71. [2024-11-09 18:10:44,031 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 71 states, 66 states have (on average 1.0454545454545454) internal successors, (69), 66 states have internal predecessors, (69), 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 18:10:44,032 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 71 states to 71 states and 75 transitions. [2024-11-09 18:10:44,032 INFO L78 Accepts]: Start accepts. Automaton has 71 states and 75 transitions. Word has length 96 [2024-11-09 18:10:44,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:10:44,033 INFO L471 AbstractCegarLoop]: Abstraction has 71 states and 75 transitions. [2024-11-09 18:10:44,033 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.4) internal successors, (68), 20 states have internal predecessors, (68), 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 18:10:44,034 INFO L276 IsEmpty]: Start isEmpty. Operand 71 states and 75 transitions. [2024-11-09 18:10:44,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 107 [2024-11-09 18:10:44,035 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:44,036 INFO L215 NwaCegarLoop]: trace histogram [21, 18, 13, 12, 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 18:10:44,058 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 18:10:44,236 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 18:10:44,237 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:44,237 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:44,237 INFO L85 PathProgramCache]: Analyzing trace with hash -165510272, now seen corresponding path program 5 times [2024-11-09 18:10:44,237 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:44,237 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1330595480] [2024-11-09 18:10:44,237 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:44,237 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:44,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:44,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-11-09 18:10:44,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:44,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2024-11-09 18:10:44,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:44,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-11-09 18:10:44,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:44,610 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 156 refuted. 0 times theorem prover too weak. 474 trivial. 0 not checked. [2024-11-09 18:10:44,611 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:10:44,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1330595480] [2024-11-09 18:10:44,611 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1330595480] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:10:44,611 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1893637410] [2024-11-09 18:10:44,611 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 18:10:44,611 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:10:44,612 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:10:44,613 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 18:10:44,618 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 18:10:45,255 INFO L227 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 14 check-sat command(s) [2024-11-09 18:10:45,255 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:10:45,260 INFO L255 TraceCheckSpWp]: Trace formula consists of 346 conjuncts, 8 conjuncts are in the unsatisfiable core [2024-11-09 18:10:45,262 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:10:45,383 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 198 proven. 42 refuted. 0 times theorem prover too weak. 390 trivial. 0 not checked. [2024-11-09 18:10:45,384 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:10:45,549 INFO L134 CoverageAnalysis]: Checked inductivity of 630 backedges. 0 proven. 244 refuted. 0 times theorem prover too weak. 386 trivial. 0 not checked. [2024-11-09 18:10:45,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1893637410] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:10:45,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:10:45,550 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 9, 9] total 29 [2024-11-09 18:10:45,550 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1586937504] [2024-11-09 18:10:45,550 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:10:45,551 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 29 states [2024-11-09 18:10:45,551 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:10:45,552 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 29 interpolants. [2024-11-09 18:10:45,552 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2024-11-09 18:10:45,553 INFO L87 Difference]: Start difference. First operand 71 states and 75 transitions. Second operand has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 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 18:10:45,606 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:10:45,607 INFO L93 Difference]: Finished difference Result 132 states and 151 transitions. [2024-11-09 18:10:45,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 29 states. [2024-11-09 18:10:45,608 INFO L78 Accepts]: Start accepts. Automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 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 106 [2024-11-09 18:10:45,609 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:10:45,610 INFO L225 Difference]: With dead ends: 132 [2024-11-09 18:10:45,610 INFO L226 Difference]: Without dead ends: 89 [2024-11-09 18:10:45,611 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 231 GetRequests, 204 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 168 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=224, Invalid=588, Unknown=0, NotChecked=0, Total=812 [2024-11-09 18:10:45,611 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 241 mSDsCounter, 0 mSdLazyCounter, 55 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 266 SdHoareTripleChecker+Invalid, 56 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 55 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:10:45,612 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 266 Invalid, 56 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 55 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:10:45,612 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 89 states. [2024-11-09 18:10:45,619 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 89 to 89. [2024-11-09 18:10:45,619 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 89 states, 84 states have (on average 1.0357142857142858) internal successors, (87), 84 states have internal predecessors, (87), 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 18:10:45,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 89 states to 89 states and 93 transitions. [2024-11-09 18:10:45,620 INFO L78 Accepts]: Start accepts. Automaton has 89 states and 93 transitions. Word has length 106 [2024-11-09 18:10:45,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:10:45,621 INFO L471 AbstractCegarLoop]: Abstraction has 89 states and 93 transitions. [2024-11-09 18:10:45,621 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 29 states, 29 states have (on average 2.9310344827586206) internal successors, (85), 29 states have internal predecessors, (85), 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 18:10:45,621 INFO L276 IsEmpty]: Start isEmpty. Operand 89 states and 93 transitions. [2024-11-09 18:10:45,623 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2024-11-09 18:10:45,623 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:45,623 INFO L215 NwaCegarLoop]: trace histogram [45, 42, 14, 13, 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 18:10:45,645 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 18:10:45,827 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 18:10:45,828 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:45,829 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:45,829 INFO L85 PathProgramCache]: Analyzing trace with hash -848063769, now seen corresponding path program 6 times [2024-11-09 18:10:45,829 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:45,829 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [899914795] [2024-11-09 18:10:45,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:45,829 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:45,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:46,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2024-11-09 18:10:46,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:46,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 67 [2024-11-09 18:10:46,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:46,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2024-11-09 18:10:46,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:46,401 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 2034 trivial. 0 not checked. [2024-11-09 18:10:46,402 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:10:46,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [899914795] [2024-11-09 18:10:46,402 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [899914795] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:10:46,402 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1539588294] [2024-11-09 18:10:46,403 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2024-11-09 18:10:46,403 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:10:46,403 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:10:46,405 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 18:10:46,407 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 18:10:46,649 INFO L227 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 15 check-sat command(s) [2024-11-09 18:10:46,650 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:10:46,652 INFO L255 TraceCheckSpWp]: Trace formula consists of 361 conjuncts, 22 conjuncts are in the unsatisfiable core [2024-11-09 18:10:46,656 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:10:46,790 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 934 proven. 42 refuted. 0 times theorem prover too weak. 1240 trivial. 0 not checked. [2024-11-09 18:10:46,791 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:10:47,015 INFO L134 CoverageAnalysis]: Checked inductivity of 2216 backedges. 0 proven. 42 refuted. 0 times theorem prover too weak. 2174 trivial. 0 not checked. [2024-11-09 18:10:47,016 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1539588294] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:10:47,016 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:10:47,016 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 10, 9] total 31 [2024-11-09 18:10:47,017 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [46638888] [2024-11-09 18:10:47,017 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:10:47,017 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2024-11-09 18:10:47,017 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:10:47,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2024-11-09 18:10:47,019 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2024-11-09 18:10:47,019 INFO L87 Difference]: Start difference. First operand 89 states and 93 transitions. Second operand has 31 states, 31 states have (on average 2.935483870967742) internal successors, (91), 31 states have internal predecessors, (91), 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 18:10:47,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:10:47,085 INFO L93 Difference]: Finished difference Result 166 states and 182 transitions. [2024-11-09 18:10:47,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2024-11-09 18:10:47,086 INFO L78 Accepts]: Start accepts. Automaton has has 31 states, 31 states have (on average 2.935483870967742) internal successors, (91), 31 states have internal predecessors, (91), 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 156 [2024-11-09 18:10:47,086 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:10:47,087 INFO L225 Difference]: With dead ends: 166 [2024-11-09 18:10:47,087 INFO L226 Difference]: Without dead ends: 107 [2024-11-09 18:10:47,088 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 332 GetRequests, 303 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=255, Invalid=675, Unknown=0, NotChecked=0, Total=930 [2024-11-09 18:10:47,089 INFO L432 NwaCegarLoop]: 24 mSDtfsCounter, 0 mSDsluCounter, 266 mSDsCounter, 0 mSdLazyCounter, 81 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 290 SdHoareTripleChecker+Invalid, 82 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 81 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:10:47,089 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 290 Invalid, 82 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 81 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:10:47,090 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 107 states. [2024-11-09 18:10:47,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 107 to 107. [2024-11-09 18:10:47,097 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 107 states, 102 states have (on average 1.0294117647058822) internal successors, (105), 102 states have internal predecessors, (105), 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 18:10:47,097 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 107 states to 107 states and 111 transitions. [2024-11-09 18:10:47,098 INFO L78 Accepts]: Start accepts. Automaton has 107 states and 111 transitions. Word has length 156 [2024-11-09 18:10:47,098 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:10:47,098 INFO L471 AbstractCegarLoop]: Abstraction has 107 states and 111 transitions. [2024-11-09 18:10:47,098 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.935483870967742) internal successors, (91), 31 states have internal predecessors, (91), 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 18:10:47,098 INFO L276 IsEmpty]: Start isEmpty. Operand 107 states and 111 transitions. [2024-11-09 18:10:47,100 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2024-11-09 18:10:47,100 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:47,101 INFO L215 NwaCegarLoop]: trace histogram [45, 42, 15, 15, 14, 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 18:10:47,120 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 18:10:47,301 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 18:10:47,302 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:47,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:47,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1016397682, now seen corresponding path program 7 times [2024-11-09 18:10:47,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:47,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [115900982] [2024-11-09 18:10:47,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:47,303 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:47,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:47,772 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2024-11-09 18:10:47,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:47,784 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 69 [2024-11-09 18:10:47,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:47,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2024-11-09 18:10:47,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:47,824 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-09 18:10:47,824 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:10:47,824 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [115900982] [2024-11-09 18:10:47,825 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [115900982] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:10:47,825 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1542899093] [2024-11-09 18:10:47,825 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2024-11-09 18:10:47,825 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:10:47,825 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:10:47,830 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 18:10:47,832 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 18:10:48,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:48,018 INFO L255 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 18:10:48,021 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:10:48,077 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-09 18:10:48,077 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:10:48,493 INFO L134 CoverageAnalysis]: Checked inductivity of 2412 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-09 18:10:48,493 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1542899093] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:10:48,493 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:10:48,493 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 33 [2024-11-09 18:10:48,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1093730282] [2024-11-09 18:10:48,494 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:10:48,494 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2024-11-09 18:10:48,494 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:10:48,495 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2024-11-09 18:10:48,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 18:10:48,496 INFO L87 Difference]: Start difference. First operand 107 states and 111 transitions. Second operand has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 states have internal predecessors, (88), 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 18:10:48,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:10:48,537 INFO L93 Difference]: Finished difference Result 214 states and 237 transitions. [2024-11-09 18:10:48,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 32 states. [2024-11-09 18:10:48,538 INFO L78 Accepts]: Start accepts. Automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 states have internal predecessors, (88), 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 174 [2024-11-09 18:10:48,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:10:48,539 INFO L225 Difference]: With dead ends: 214 [2024-11-09 18:10:48,539 INFO L226 Difference]: Without dead ends: 139 [2024-11-09 18:10:48,540 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 369 GetRequests, 338 SyntacticMatches, 0 SemanticMatches, 31 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 56 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=528, Invalid=528, Unknown=0, NotChecked=0, Total=1056 [2024-11-09 18:10:48,540 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 140 mSDsCounter, 0 mSdLazyCounter, 41 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 166 SdHoareTripleChecker+Invalid, 42 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 41 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-11-09 18:10:48,541 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 166 Invalid, 42 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 41 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-11-09 18:10:48,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 139 states. [2024-11-09 18:10:48,548 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 139 to 139. [2024-11-09 18:10:48,548 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 139 states, 134 states have (on average 1.0223880597014925) internal successors, (137), 134 states have internal predecessors, (137), 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 18:10:48,549 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 139 states to 139 states and 143 transitions. [2024-11-09 18:10:48,549 INFO L78 Accepts]: Start accepts. Automaton has 139 states and 143 transitions. Word has length 174 [2024-11-09 18:10:48,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:10:48,549 INFO L471 AbstractCegarLoop]: Abstraction has 139 states and 143 transitions. [2024-11-09 18:10:48,550 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 2.6666666666666665) internal successors, (88), 33 states have internal predecessors, (88), 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 18:10:48,550 INFO L276 IsEmpty]: Start isEmpty. Operand 139 states and 143 transitions. [2024-11-09 18:10:48,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 207 [2024-11-09 18:10:48,552 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:48,552 INFO L215 NwaCegarLoop]: trace histogram [45, 42, 31, 30, 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 18:10:48,571 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 18:10:48,753 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 18:10:48,753 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:48,754 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:48,754 INFO L85 PathProgramCache]: Analyzing trace with hash 697572478, now seen corresponding path program 8 times [2024-11-09 18:10:48,754 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:48,754 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1685763298] [2024-11-09 18:10:48,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:48,754 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:48,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:49,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 65 [2024-11-09 18:10:49,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:49,950 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 101 [2024-11-09 18:10:49,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:49,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 168 [2024-11-09 18:10:49,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:49,979 INFO L134 CoverageAnalysis]: Checked inductivity of 3132 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-09 18:10:49,980 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:10:49,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1685763298] [2024-11-09 18:10:49,980 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1685763298] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:10:49,980 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [323634452] [2024-11-09 18:10:49,980 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2024-11-09 18:10:49,980 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:10:49,981 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:10:49,983 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 18:10:49,984 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 18:10:50,193 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2024-11-09 18:10:50,193 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:10:50,199 INFO L255 TraceCheckSpWp]: Trace formula consists of 793 conjuncts, 32 conjuncts are in the unsatisfiable core [2024-11-09 18:10:50,203 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:10:50,316 INFO L134 CoverageAnalysis]: Checked inductivity of 3132 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-09 18:10:50,317 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:10:51,549 INFO L134 CoverageAnalysis]: Checked inductivity of 3132 backedges. 0 proven. 930 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-09 18:10:51,550 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [323634452] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:10:51,550 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:10:51,551 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 33, 33] total 65 [2024-11-09 18:10:51,551 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1600199351] [2024-11-09 18:10:51,551 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:10:51,552 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 65 states [2024-11-09 18:10:51,552 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:10:51,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 65 interpolants. [2024-11-09 18:10:51,557 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2024-11-09 18:10:51,557 INFO L87 Difference]: Start difference. First operand 139 states and 143 transitions. Second operand has 65 states, 65 states have (on average 2.3384615384615386) internal successors, (152), 65 states have internal predecessors, (152), 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 18:10:51,645 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:10:51,645 INFO L93 Difference]: Finished difference Result 278 states and 317 transitions. [2024-11-09 18:10:51,646 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 64 states. [2024-11-09 18:10:51,646 INFO L78 Accepts]: Start accepts. Automaton has has 65 states, 65 states have (on average 2.3384615384615386) internal successors, (152), 65 states have internal predecessors, (152), 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 206 [2024-11-09 18:10:51,646 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:10:51,648 INFO L225 Difference]: With dead ends: 278 [2024-11-09 18:10:51,648 INFO L226 Difference]: Without dead ends: 203 [2024-11-09 18:10:51,651 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 449 GetRequests, 386 SyntacticMatches, 0 SemanticMatches, 63 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 120 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=2080, Invalid=2080, Unknown=0, NotChecked=0, Total=4160 [2024-11-09 18:10:51,652 INFO L432 NwaCegarLoop]: 26 mSDtfsCounter, 0 mSDsluCounter, 195 mSDsCounter, 0 mSdLazyCounter, 76 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 221 SdHoareTripleChecker+Invalid, 77 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 76 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:10:51,652 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 221 Invalid, 77 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 76 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:10:51,654 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 203 states. [2024-11-09 18:10:51,671 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 203 to 203. [2024-11-09 18:10:51,672 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 203 states, 198 states have (on average 1.0151515151515151) internal successors, (201), 198 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 18:10:51,672 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 203 states to 203 states and 207 transitions. [2024-11-09 18:10:51,673 INFO L78 Accepts]: Start accepts. Automaton has 203 states and 207 transitions. Word has length 206 [2024-11-09 18:10:51,673 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:10:51,673 INFO L471 AbstractCegarLoop]: Abstraction has 203 states and 207 transitions. [2024-11-09 18:10:51,673 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 65 states, 65 states have (on average 2.3384615384615386) internal successors, (152), 65 states have internal predecessors, (152), 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 18:10:51,673 INFO L276 IsEmpty]: Start isEmpty. Operand 203 states and 207 transitions. [2024-11-09 18:10:51,676 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 271 [2024-11-09 18:10:51,677 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:51,677 INFO L215 NwaCegarLoop]: trace histogram [63, 62, 45, 42, 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 18:10:51,697 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 18:10:51,878 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 18:10:51,879 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:51,879 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:51,879 INFO L85 PathProgramCache]: Analyzing trace with hash 438506590, now seen corresponding path program 9 times [2024-11-09 18:10:51,879 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:51,880 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [446635290] [2024-11-09 18:10:51,880 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:51,880 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:51,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:55,421 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2024-11-09 18:10:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:55,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2024-11-09 18:10:55,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:55,449 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 232 [2024-11-09 18:10:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:10:55,464 INFO L134 CoverageAnalysis]: Checked inductivity of 6108 backedges. 0 proven. 3906 refuted. 0 times theorem prover too weak. 2202 trivial. 0 not checked. [2024-11-09 18:10:55,464 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:10:55,464 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [446635290] [2024-11-09 18:10:55,465 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [446635290] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:10:55,465 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1699652543] [2024-11-09 18:10:55,465 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2024-11-09 18:10:55,466 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:10:55,466 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:10:55,468 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 18:10:55,469 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 18:10:55,988 INFO L227 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 15 check-sat command(s) [2024-11-09 18:10:55,989 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:10:55,994 INFO L255 TraceCheckSpWp]: Trace formula consists of 502 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 18:10:56,013 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:10:56,544 INFO L134 CoverageAnalysis]: Checked inductivity of 6108 backedges. 906 proven. 210 refuted. 0 times theorem prover too weak. 4992 trivial. 0 not checked. [2024-11-09 18:10:56,544 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:10:57,153 INFO L134 CoverageAnalysis]: Checked inductivity of 6108 backedges. 906 proven. 210 refuted. 0 times theorem prover too weak. 4992 trivial. 0 not checked. [2024-11-09 18:10:57,154 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1699652543] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:10:57,154 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:10:57,154 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 17, 17] total 95 [2024-11-09 18:10:57,154 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1107385524] [2024-11-09 18:10:57,154 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:10:57,155 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 95 states [2024-11-09 18:10:57,155 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:10:57,157 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 95 interpolants. [2024-11-09 18:10:57,161 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2575, Invalid=6355, Unknown=0, NotChecked=0, Total=8930 [2024-11-09 18:10:57,161 INFO L87 Difference]: Start difference. First operand 203 states and 207 transitions. Second operand has 95 states, 95 states have (on average 2.305263157894737) internal successors, (219), 95 states have internal predecessors, (219), 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 18:10:57,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:10:57,313 INFO L93 Difference]: Finished difference Result 312 states and 339 transitions. [2024-11-09 18:10:57,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 95 states. [2024-11-09 18:10:57,314 INFO L78 Accepts]: Start accepts. Automaton has has 95 states, 95 states have (on average 2.305263157894737) internal successors, (219), 95 states have internal predecessors, (219), 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 270 [2024-11-09 18:10:57,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:10:57,316 INFO L225 Difference]: With dead ends: 312 [2024-11-09 18:10:57,316 INFO L226 Difference]: Without dead ends: 237 [2024-11-09 18:10:57,321 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 609 GetRequests, 516 SyntacticMatches, 0 SemanticMatches, 93 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1860 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=2575, Invalid=6355, Unknown=0, NotChecked=0, Total=8930 [2024-11-09 18:10:57,323 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 370 mSDsCounter, 0 mSdLazyCounter, 130 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 395 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 130 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:10:57,324 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 395 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 130 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:10:57,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 237 states. [2024-11-09 18:10:57,339 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 237 to 237. [2024-11-09 18:10:57,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 237 states, 232 states have (on average 1.0129310344827587) internal successors, (235), 232 states have internal predecessors, (235), 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 18:10:57,341 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 241 transitions. [2024-11-09 18:10:57,342 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 241 transitions. Word has length 270 [2024-11-09 18:10:57,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:10:57,343 INFO L471 AbstractCegarLoop]: Abstraction has 237 states and 241 transitions. [2024-11-09 18:10:57,343 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 95 states, 95 states have (on average 2.305263157894737) internal successors, (219), 95 states have internal predecessors, (219), 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 18:10:57,344 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 241 transitions. [2024-11-09 18:10:57,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 369 [2024-11-09 18:10:57,349 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:10:57,349 INFO L215 NwaCegarLoop]: trace histogram [93, 90, 64, 63, 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 18:10:57,375 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Ended with exit code 0 [2024-11-09 18:10:57,549 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 18:10:57,550 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:10:57,550 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:10:57,550 INFO L85 PathProgramCache]: Analyzing trace with hash -1135933875, now seen corresponding path program 10 times [2024-11-09 18:10:57,550 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:10:57,550 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1572146710] [2024-11-09 18:10:57,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:10:57,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:10:57,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:11:00,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2024-11-09 18:11:00,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:11:01,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 199 [2024-11-09 18:11:01,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:11:01,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 298 [2024-11-09 18:11:01,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:11:01,044 INFO L134 CoverageAnalysis]: Checked inductivity of 12810 backedges. 0 proven. 4032 refuted. 0 times theorem prover too weak. 8778 trivial. 0 not checked. [2024-11-09 18:11:01,045 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:11:01,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1572146710] [2024-11-09 18:11:01,045 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1572146710] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:11:01,045 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1097488557] [2024-11-09 18:11:01,046 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2024-11-09 18:11:01,046 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:11:01,046 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:11:01,048 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 18:11:01,050 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 18:11:01,394 INFO L227 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2024-11-09 18:11:01,394 INFO L228 tOrderPrioritization]: Conjunction of SSA is unsat [2024-11-09 18:11:01,399 INFO L255 TraceCheckSpWp]: Trace formula consists of 1411 conjuncts, 16 conjuncts are in the unsatisfiable core [2024-11-09 18:11:01,405 INFO L278 TraceCheckSpWp]: Computing forward predicates... [2024-11-09 18:11:01,862 INFO L134 CoverageAnalysis]: Checked inductivity of 12810 backedges. 3852 proven. 210 refuted. 0 times theorem prover too weak. 8748 trivial. 0 not checked. [2024-11-09 18:11:01,863 INFO L311 TraceCheckSpWp]: Computing backward predicates... [2024-11-09 18:11:02,503 INFO L134 CoverageAnalysis]: Checked inductivity of 12810 backedges. 0 proven. 210 refuted. 0 times theorem prover too weak. 12600 trivial. 0 not checked. [2024-11-09 18:11:02,503 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1097488557] provided 0 perfect and 2 imperfect interpolant sequences [2024-11-09 18:11:02,503 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2024-11-09 18:11:02,504 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [66, 17, 17] total 96 [2024-11-09 18:11:02,506 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925112012] [2024-11-09 18:11:02,506 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2024-11-09 18:11:02,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 96 states [2024-11-09 18:11:02,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-11-09 18:11:02,511 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 96 interpolants. [2024-11-09 18:11:02,514 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2640, Invalid=6480, Unknown=0, NotChecked=0, Total=9120 [2024-11-09 18:11:02,515 INFO L87 Difference]: Start difference. First operand 237 states and 241 transitions. Second operand has 96 states, 96 states have (on average 2.2916666666666665) internal successors, (220), 96 states have internal predecessors, (220), 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 18:11:02,653 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-11-09 18:11:02,653 INFO L93 Difference]: Finished difference Result 378 states and 402 transitions. [2024-11-09 18:11:02,655 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 96 states. [2024-11-09 18:11:02,655 INFO L78 Accepts]: Start accepts. Automaton has has 96 states, 96 states have (on average 2.2916666666666665) internal successors, (220), 96 states have internal predecessors, (220), 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 368 [2024-11-09 18:11:02,656 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-11-09 18:11:02,657 INFO L225 Difference]: With dead ends: 378 [2024-11-09 18:11:02,657 INFO L226 Difference]: Without dead ends: 271 [2024-11-09 18:11:02,661 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 806 GetRequests, 712 SyntacticMatches, 0 SemanticMatches, 94 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1890 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=2640, Invalid=6480, Unknown=0, NotChecked=0, Total=9120 [2024-11-09 18:11:02,662 INFO L432 NwaCegarLoop]: 25 mSDtfsCounter, 0 mSDsluCounter, 219 mSDsCounter, 0 mSdLazyCounter, 115 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 116 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 115 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-11-09 18:11:02,662 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 244 Invalid, 116 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 115 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-11-09 18:11:02,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2024-11-09 18:11:02,690 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 271. [2024-11-09 18:11:02,691 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 271 states, 266 states have (on average 1.0112781954887218) internal successors, (269), 266 states have internal predecessors, (269), 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 18:11:02,692 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 275 transitions. [2024-11-09 18:11:02,693 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 275 transitions. Word has length 368 [2024-11-09 18:11:02,693 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-11-09 18:11:02,693 INFO L471 AbstractCegarLoop]: Abstraction has 271 states and 275 transitions. [2024-11-09 18:11:02,694 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 96 states, 96 states have (on average 2.2916666666666665) internal successors, (220), 96 states have internal predecessors, (220), 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 18:11:02,694 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 275 transitions. [2024-11-09 18:11:02,699 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 403 [2024-11-09 18:11:02,699 INFO L207 NwaCegarLoop]: Found error trace [2024-11-09 18:11:02,699 INFO L215 NwaCegarLoop]: trace histogram [93, 90, 65, 64, 31, 30, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-11-09 18:11:02,722 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 18:11:02,900 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 18:11:02,901 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-11-09 18:11:02,901 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-11-09 18:11:02,901 INFO L85 PathProgramCache]: Analyzing trace with hash -975200132, now seen corresponding path program 11 times [2024-11-09 18:11:02,901 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-11-09 18:11:02,901 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1646848824] [2024-11-09 18:11:02,901 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-11-09 18:11:02,902 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-11-09 18:11:03,042 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:11:06,288 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-11-09 18:11:06,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:11:06,300 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 201 [2024-11-09 18:11:06,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:11:06,319 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2024-11-09 18:11:06,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-11-09 18:11:06,337 INFO L134 CoverageAnalysis]: Checked inductivity of 13658 backedges. 0 proven. 4160 refuted. 0 times theorem prover too weak. 9498 trivial. 0 not checked. [2024-11-09 18:11:06,337 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-11-09 18:11:06,337 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1646848824] [2024-11-09 18:11:06,338 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1646848824] provided 0 perfect and 1 imperfect interpolant sequences [2024-11-09 18:11:06,338 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1349911757] [2024-11-09 18:11:06,338 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2024-11-09 18:11:06,338 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2024-11-09 18:11:06,338 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-11-09 18:11:06,341 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 18:11:06,343 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process