/usr/lib/jvm/java-1.11.0-openjdk-amd64/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.use.bitabs.translation true -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/recursified_nla-digbench/recursified_geo1-u.c -------------------------------------------------------------------------------- This is Ultimate 0.2.4-tmp.fs.bitabs-eval-d9c3e40-m [2023-12-20 00:23:27,901 INFO L188 SettingsManager]: Resetting all preferences to default values... [2023-12-20 00:23:27,968 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-12-20 00:23:27,973 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2023-12-20 00:23:27,973 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2023-12-20 00:23:27,995 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2023-12-20 00:23:27,996 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-12-20 00:23:27,996 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-12-20 00:23:27,997 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2023-12-20 00:23:27,999 INFO L153 SettingsManager]: * Use memory slicer=true [2023-12-20 00:23:27,999 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-12-20 00:23:28,000 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-12-20 00:23:28,000 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-12-20 00:23:28,001 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2023-12-20 00:23:28,001 INFO L153 SettingsManager]: * Use SBE=true [2023-12-20 00:23:28,002 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-12-20 00:23:28,002 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-12-20 00:23:28,002 INFO L153 SettingsManager]: * sizeof long=4 [2023-12-20 00:23:28,002 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2023-12-20 00:23:28,002 INFO L153 SettingsManager]: * sizeof POINTER=4 [2023-12-20 00:23:28,002 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2023-12-20 00:23:28,003 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-12-20 00:23:28,003 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-12-20 00:23:28,003 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-12-20 00:23:28,003 INFO L153 SettingsManager]: * Allow undefined functions=false [2023-12-20 00:23:28,003 INFO L153 SettingsManager]: * sizeof long double=12 [2023-12-20 00:23:28,003 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2023-12-20 00:23:28,004 INFO L153 SettingsManager]: * Use constant arrays=true [2023-12-20 00:23:28,004 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-12-20 00:23:28,004 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-12-20 00:23:28,005 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2023-12-20 00:23:28,005 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2023-12-20 00:23:28,005 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 00:23:28,005 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-12-20 00:23:28,005 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-12-20 00:23:28,006 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2023-12-20 00:23:28,006 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2023-12-20 00:23:28,006 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-12-20 00:23:28,006 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2023-12-20 00:23:28,006 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-12-20 00:23:28,006 INFO L153 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-12-20 00:23:28,006 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-12-20 00:23:28,006 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-12-20 00:23:28,007 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Use bitabs translation -> true [2023-12-20 00:23:28,190 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-12-20 00:23:28,207 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-12-20 00:23:28,209 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-12-20 00:23:28,210 INFO L270 PluginConnector]: Initializing CDTParser... [2023-12-20 00:23:28,210 INFO L274 PluginConnector]: CDTParser initialized [2023-12-20 00:23:28,210 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/recursified_nla-digbench/recursified_geo1-u.c [2023-12-20 00:23:29,222 INFO L533 CDTParser]: Created temporary CDT project at NULL [2023-12-20 00:23:29,352 INFO L384 CDTParser]: Found 1 translation units. [2023-12-20 00:23:29,353 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_geo1-u.c [2023-12-20 00:23:29,357 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad6ed37fb/9f2d909259994a57a33c918fc30dd18f/FLAGe7624a885 [2023-12-20 00:23:29,366 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/ad6ed37fb/9f2d909259994a57a33c918fc30dd18f [2023-12-20 00:23:29,368 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-12-20 00:23:29,369 INFO L133 ToolchainWalker]: Walking toolchain with 5 elements. [2023-12-20 00:23:29,370 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-12-20 00:23:29,370 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-12-20 00:23:29,375 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2023-12-20 00:23:29,375 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,376 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@487f3f34 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29, skipping insertion in model container [2023-12-20 00:23:29,376 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,398 INFO L177 MainTranslator]: Built tables and reachable declarations [2023-12-20 00:23:29,502 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_geo1-u.c[1083,1096] [2023-12-20 00:23:29,512 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 00:23:29,518 INFO L202 MainTranslator]: Completed pre-run [2023-12-20 00:23:29,526 WARN L239 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/recursified_nla-digbench/recursified_geo1-u.c[1083,1096] [2023-12-20 00:23:29,531 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-12-20 00:23:29,540 INFO L206 MainTranslator]: Completed translation [2023-12-20 00:23:29,540 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29 WrapperNode [2023-12-20 00:23:29,540 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-12-20 00:23:29,541 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2023-12-20 00:23:29,541 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2023-12-20 00:23:29,541 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2023-12-20 00:23:29,546 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,550 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,561 INFO L138 Inliner]: procedures = 16, calls = 51, calls flagged for inlining = 2, calls inlined = 2, statements flattened = 58 [2023-12-20 00:23:29,562 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2023-12-20 00:23:29,562 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-12-20 00:23:29,562 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2023-12-20 00:23:29,562 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2023-12-20 00:23:29,569 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,569 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,570 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,580 INFO L175 MemorySlicer]: Split 27 memory accesses to 6 slices as follows [2, 4, 2, 8, 6, 5]. 30 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2, 0, 0, 0, 0, 0]. The 9 writes are split as follows [0, 2, 1, 3, 1, 2]. [2023-12-20 00:23:29,580 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,580 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,584 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,585 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,592 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,593 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,597 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-12-20 00:23:29,597 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-12-20 00:23:29,597 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2023-12-20 00:23:29,597 INFO L274 PluginConnector]: RCFGBuilder initialized [2023-12-20 00:23:29,598 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29" (1/1) ... [2023-12-20 00:23:29,606 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2023-12-20 00:23:29,617 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:23:29,630 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) [2023-12-20 00:23:29,648 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 [2023-12-20 00:23:29,664 INFO L130 BoogieDeclarations]: Found specification of procedure func_to_recursive_line_28_to_36_0 [2023-12-20 00:23:29,664 INFO L138 BoogieDeclarations]: Found implementation of procedure func_to_recursive_line_28_to_36_0 [2023-12-20 00:23:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-12-20 00:23:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2023-12-20 00:23:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#1 [2023-12-20 00:23:29,665 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#2 [2023-12-20 00:23:29,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#3 [2023-12-20 00:23:29,666 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#4 [2023-12-20 00:23:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#5 [2023-12-20 00:23:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-12-20 00:23:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#0 [2023-12-20 00:23:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#1 [2023-12-20 00:23:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#2 [2023-12-20 00:23:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#3 [2023-12-20 00:23:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#4 [2023-12-20 00:23:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure write~int#5 [2023-12-20 00:23:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-12-20 00:23:29,667 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-12-20 00:23:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#0 [2023-12-20 00:23:29,667 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#1 [2023-12-20 00:23:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#2 [2023-12-20 00:23:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#3 [2023-12-20 00:23:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#4 [2023-12-20 00:23:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure read~int#5 [2023-12-20 00:23:29,668 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-12-20 00:23:29,669 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-12-20 00:23:29,669 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-12-20 00:23:29,775 INFO L241 CfgBuilder]: Building ICFG [2023-12-20 00:23:29,779 INFO L267 CfgBuilder]: Building CFG for each procedure with an implementation [2023-12-20 00:23:29,966 INFO L282 CfgBuilder]: Performing block encoding [2023-12-20 00:23:29,996 INFO L304 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-12-20 00:23:29,996 INFO L309 CfgBuilder]: Removed 1 assume(true) statements. [2023-12-20 00:23:29,996 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 12:23:29 BoogieIcfgContainer [2023-12-20 00:23:29,996 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-12-20 00:23:29,998 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-12-20 00:23:29,998 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2023-12-20 00:23:30,000 INFO L274 PluginConnector]: TraceAbstraction initialized [2023-12-20 00:23:30,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.12 12:23:29" (1/3) ... [2023-12-20 00:23:30,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b35c0d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 12:23:30, skipping insertion in model container [2023-12-20 00:23:30,001 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.12 12:23:29" (2/3) ... [2023-12-20 00:23:30,001 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2b35c0d6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.12 12:23:30, skipping insertion in model container [2023-12-20 00:23:30,002 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.12 12:23:29" (3/3) ... [2023-12-20 00:23:30,002 INFO L112 eAbstractionObserver]: Analyzing ICFG recursified_geo1-u.c [2023-12-20 00:23:30,015 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-12-20 00:23:30,015 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-12-20 00:23:30,053 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-12-20 00:23:30,057 INFO L357 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, mHoare=true, 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;@7c6f56c5, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2023-12-20 00:23:30,058 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-12-20 00:23:30,061 INFO L276 IsEmpty]: Start isEmpty. Operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2023-12-20 00:23:30,066 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2023-12-20 00:23:30,066 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:23:30,067 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:23:30,067 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:23:30,072 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:23:30,072 INFO L85 PathProgramCache]: Analyzing trace with hash -1288934217, now seen corresponding path program 1 times [2023-12-20 00:23:30,079 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:23:30,079 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [727141821] [2023-12-20 00:23:30,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:23:30,080 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:23:30,209 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 00:23:30,209 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1468218018] [2023-12-20 00:23:30,209 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:23:30,210 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:23:30,210 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:23:30,212 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) [2023-12-20 00:23:30,217 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-12-20 00:23:30,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:23:30,459 INFO L262 TraceCheckSpWp]: Trace formula consists of 156 conjuncts, 56 conjunts are in the unsatisfiable core [2023-12-20 00:23:30,464 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:23:30,553 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-20 00:23:30,567 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-12-20 00:23:30,574 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-20 00:23:30,731 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-12-20 00:23:30,736 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 9 [2023-12-20 00:23:30,782 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:23:30,782 INFO L323 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2023-12-20 00:23:30,782 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:23:30,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [727141821] [2023-12-20 00:23:30,783 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 00:23:30,783 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1468218018] [2023-12-20 00:23:30,784 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1468218018] provided 1 perfect and 0 imperfect interpolant sequences [2023-12-20 00:23:30,784 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-12-20 00:23:30,784 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2023-12-20 00:23:30,785 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [870393119] [2023-12-20 00:23:30,786 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-12-20 00:23:30,788 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2023-12-20 00:23:30,788 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:23:30,809 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2023-12-20 00:23:30,809 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2023-12-20 00:23:30,810 INFO L87 Difference]: Start difference. First operand has 20 states, 12 states have (on average 1.3333333333333333) internal successors, (16), 14 states have internal predecessors, (16), 4 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) Second operand has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 00:23:31,037 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:23:31,037 INFO L93 Difference]: Finished difference Result 50 states and 65 transitions. [2023-12-20 00:23:31,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2023-12-20 00:23:31,039 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 8 [2023-12-20 00:23:31,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:23:31,044 INFO L225 Difference]: With dead ends: 50 [2023-12-20 00:23:31,044 INFO L226 Difference]: Without dead ends: 30 [2023-12-20 00:23:31,047 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2023-12-20 00:23:31,051 INFO L413 NwaCegarLoop]: 12 mSDtfsCounter, 14 mSDsluCounter, 65 mSDsCounter, 0 mSdLazyCounter, 75 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 14 SdHoareTripleChecker+Valid, 77 SdHoareTripleChecker+Invalid, 79 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 75 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-12-20 00:23:31,054 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [14 Valid, 77 Invalid, 79 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 75 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-12-20 00:23:31,065 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2023-12-20 00:23:31,079 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 29. [2023-12-20 00:23:31,080 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 19 states have (on average 1.1578947368421053) internal successors, (22), 21 states have internal predecessors, (22), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (5), 4 states have call predecessors, (5), 4 states have call successors, (5) [2023-12-20 00:23:31,082 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2023-12-20 00:23:31,083 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 8 [2023-12-20 00:23:31,083 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:23:31,083 INFO L495 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2023-12-20 00:23:31,084 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 6 states have (on average 1.0) internal successors, (6), 5 states have internal predecessors, (6), 2 states have call successors, (2), 2 states have call predecessors, (2), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2023-12-20 00:23:31,084 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2023-12-20 00:23:31,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-20 00:23:31,085 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:23:31,085 INFO L195 NwaCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:23:31,092 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-12-20 00:23:31,292 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2023-12-20 00:23:31,292 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:23:31,293 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:23:31,293 INFO L85 PathProgramCache]: Analyzing trace with hash 1531368910, now seen corresponding path program 1 times [2023-12-20 00:23:31,293 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:23:31,293 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [822036375] [2023-12-20 00:23:31,293 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:23:31,293 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:23:31,329 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 00:23:31,330 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1523119116] [2023-12-20 00:23:31,330 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:23:31,330 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:23:31,330 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:23:31,334 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) [2023-12-20 00:23:31,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-12-20 00:23:32,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-12-20 00:23:32,025 INFO L262 TraceCheckSpWp]: Trace formula consists of 236 conjuncts, 99 conjunts are in the unsatisfiable core [2023-12-20 00:23:32,029 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-12-20 00:23:32,039 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 11 treesize of output 7 [2023-12-20 00:23:32,045 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 15 treesize of output 1 [2023-12-20 00:23:32,050 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 17 treesize of output 13 [2023-12-20 00:23:32,358 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 37 treesize of output 25 [2023-12-20 00:23:32,366 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 1 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 27 treesize of output 19 [2023-12-20 00:23:32,475 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 44 treesize of output 28 [2023-12-20 00:23:32,478 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 21 treesize of output 13 [2023-12-20 00:23:32,483 INFO L378 Elim1Store]: Elim1 eliminated variable of array dimension 2, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 26 treesize of output 14 [2023-12-20 00:23:32,530 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 5 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:23:32,530 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-12-20 00:23:42,493 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 1 refuted. 2 times theorem prover too weak. 0 trivial. 0 not checked. [2023-12-20 00:23:42,493 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-12-20 00:23:42,493 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [822036375] [2023-12-20 00:23:42,493 WARN L311 FreeRefinementEngine]: Interpolation failed due to KNOWN_IGNORE: SMT_SOLVER_CANNOT_INTERPOLATE_INPUT [2023-12-20 00:23:42,494 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1523119116] [2023-12-20 00:23:42,494 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1523119116] provided 0 perfect and 2 imperfect interpolant sequences [2023-12-20 00:23:42,494 INFO L185 FreeRefinementEngine]: Found 0 perfect and 2 imperfect interpolant sequences. [2023-12-20 00:23:42,494 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 10] total 22 [2023-12-20 00:23:42,494 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2097743706] [2023-12-20 00:23:42,494 INFO L85 oduleStraightlineAll]: Using 2 imperfect interpolants to construct interpolant automaton [2023-12-20 00:23:42,495 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 22 states [2023-12-20 00:23:42,495 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-12-20 00:23:42,496 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 22 interpolants. [2023-12-20 00:23:42,496 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=397, Unknown=2, NotChecked=0, Total=462 [2023-12-20 00:23:42,496 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 22 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 15 states have internal predecessors, (25), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-20 00:23:49,531 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 1.13s for a HTC check with result INVALID. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:24:02,224 WARN L293 SmtUtils]: Spent 5.69s on a formula simplification that was a NOOP. DAG size: 34 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-20 00:24:15,103 WARN L293 SmtUtils]: Spent 12.63s on a formula simplification that was a NOOP. DAG size: 59 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-20 00:24:34,416 WARN L293 SmtUtils]: Spent 12.99s on a formula simplification that was a NOOP. DAG size: 70 (called from [L 391] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2023-12-20 00:24:38,495 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:24:42,513 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.02s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:24:46,524 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:24:50,528 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:25:16,862 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:25:20,867 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:25:49,134 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:25:53,141 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:25:57,153 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:26:01,165 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:26:05,171 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:26:09,177 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.01s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:26:13,183 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:26:17,188 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:26:21,191 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:26:25,197 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:26:29,228 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:26:33,280 WARN L539 Checker$ProtectedHtc]: IncrementalHoareTripleChecker took 4.00s for a HTC check with result UNKNOWN. Formula has sorts [Array, Bool, Int], hasArrays=true, hasNonlinArith=true, quantifiers [] [2023-12-20 00:26:34,243 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-12-20 00:26:34,243 INFO L93 Difference]: Finished difference Result 66 states and 77 transitions. [2023-12-20 00:26:34,244 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2023-12-20 00:26:34,244 INFO L78 Accepts]: Start accepts. Automaton has has 22 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 15 states have internal predecessors, (25), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) Word has length 18 [2023-12-20 00:26:34,244 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-12-20 00:26:34,246 INFO L225 Difference]: With dead ends: 66 [2023-12-20 00:26:34,246 INFO L226 Difference]: Without dead ends: 64 [2023-12-20 00:26:34,247 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 13 SyntacticMatches, 1 SemanticMatches, 33 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 194 ImplicationChecksByTransitivity, 101.2s TimeCoverageRelationStatistics Valid=190, Invalid=987, Unknown=13, NotChecked=0, Total=1190 [2023-12-20 00:26:34,247 INFO L413 NwaCegarLoop]: 14 mSDtfsCounter, 86 mSDsluCounter, 133 mSDsCounter, 0 mSdLazyCounter, 222 mSolverCounterSat, 32 mSolverCounterUnsat, 18 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 80.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 86 SdHoareTripleChecker+Valid, 147 SdHoareTripleChecker+Invalid, 272 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 32 IncrementalHoareTripleChecker+Valid, 222 IncrementalHoareTripleChecker+Invalid, 18 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 80.1s IncrementalHoareTripleChecker+Time [2023-12-20 00:26:34,248 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [86 Valid, 147 Invalid, 272 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [32 Valid, 222 Invalid, 18 Unknown, 0 Unchecked, 80.1s Time] [2023-12-20 00:26:34,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2023-12-20 00:26:34,258 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 61. [2023-12-20 00:26:34,258 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 61 states, 39 states have (on average 1.1538461538461537) internal successors, (45), 44 states have internal predecessors, (45), 11 states have call successors, (11), 8 states have call predecessors, (11), 10 states have return successors, (16), 10 states have call predecessors, (16), 10 states have call successors, (16) [2023-12-20 00:26:34,259 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61 states to 61 states and 72 transitions. [2023-12-20 00:26:34,259 INFO L78 Accepts]: Start accepts. Automaton has 61 states and 72 transitions. Word has length 18 [2023-12-20 00:26:34,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-12-20 00:26:34,259 INFO L495 AbstractCegarLoop]: Abstraction has 61 states and 72 transitions. [2023-12-20 00:26:34,259 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 22 states, 17 states have (on average 1.4705882352941178) internal successors, (25), 15 states have internal predecessors, (25), 8 states have call successors, (8), 8 states have call predecessors, (8), 2 states have return successors, (2), 2 states have call predecessors, (2), 2 states have call successors, (2) [2023-12-20 00:26:34,260 INFO L276 IsEmpty]: Start isEmpty. Operand 61 states and 72 transitions. [2023-12-20 00:26:34,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 19 [2023-12-20 00:26:34,262 INFO L187 NwaCegarLoop]: Found error trace [2023-12-20 00:26:34,262 INFO L195 NwaCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-12-20 00:26:34,270 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-12-20 00:26:34,463 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2023-12-20 00:26:34,463 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-12-20 00:26:34,463 INFO L160 PredicateUnifier]: Initialized classic predicate unifier [2023-12-20 00:26:34,463 INFO L85 PathProgramCache]: Analyzing trace with hash 1152056984, now seen corresponding path program 1 times [2023-12-20 00:26:34,464 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-12-20 00:26:34,464 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1963340025] [2023-12-20 00:26:34,464 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:26:34,464 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-12-20 00:26:34,479 ERROR L246 FreeRefinementEngine]: Caught known exception: Unsupported non-linear arithmetic [2023-12-20 00:26:34,480 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleZ3 [1470224940] [2023-12-20 00:26:34,480 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-12-20 00:26:34,480 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:26:34,480 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-12-20 00:26:34,481 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) [2023-12-20 00:26:34,482 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-12-20 00:26:34,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-20 00:26:34,639 INFO L356 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2023-12-20 00:26:34,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2023-12-20 00:26:34,718 INFO L130 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2023-12-20 00:26:34,719 INFO L360 BasicCegarLoop]: Counterexample is feasible [2023-12-20 00:26:34,719 INFO L805 garLoopResultBuilder]: Registering result UNSAFE for location __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION (0 of 1 remaining) [2023-12-20 00:26:34,731 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-12-20 00:26:34,920 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-12-20 00:26:34,923 INFO L445 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2023-12-20 00:26:34,926 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2023-12-20 00:26:34,945 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.12 12:26:34 BoogieIcfgContainer [2023-12-20 00:26:34,946 INFO L131 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2023-12-20 00:26:34,946 INFO L158 Benchmark]: Toolchain (without parser) took 185576.92ms. Allocated memory is still 249.6MB. Free memory was 197.4MB in the beginning and 105.7MB in the end (delta: 91.7MB). Peak memory consumption was 93.3MB. Max. memory is 8.0GB. [2023-12-20 00:26:34,946 INFO L158 Benchmark]: CDTParser took 0.08ms. Allocated memory is still 181.4MB. Free memory is still 131.3MB. There was no memory consumed. Max. memory is 8.0GB. [2023-12-20 00:26:34,946 INFO L158 Benchmark]: CACSL2BoogieTranslator took 170.82ms. Allocated memory is still 249.6MB. Free memory was 197.1MB in the beginning and 185.9MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. [2023-12-20 00:26:34,946 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.65ms. Allocated memory is still 249.6MB. Free memory was 185.9MB in the beginning and 184.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 00:26:34,946 INFO L158 Benchmark]: Boogie Preprocessor took 34.44ms. Allocated memory is still 249.6MB. Free memory was 184.5MB in the beginning and 182.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2023-12-20 00:26:34,947 INFO L158 Benchmark]: RCFGBuilder took 399.34ms. Allocated memory is still 249.6MB. Free memory was 182.1MB in the beginning and 166.7MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. [2023-12-20 00:26:34,947 INFO L158 Benchmark]: TraceAbstraction took 184947.63ms. Allocated memory is still 249.6MB. Free memory was 166.0MB in the beginning and 105.7MB in the end (delta: 60.3MB). Peak memory consumption was 61.8MB. Max. memory is 8.0GB. [2023-12-20 00:26:34,948 INFO L338 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.08ms. Allocated memory is still 181.4MB. Free memory is still 131.3MB. There was no memory consumed. Max. memory is 8.0GB. * CACSL2BoogieTranslator took 170.82ms. Allocated memory is still 249.6MB. Free memory was 197.1MB in the beginning and 185.9MB in the end (delta: 11.2MB). Peak memory consumption was 10.5MB. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.65ms. Allocated memory is still 249.6MB. Free memory was 185.9MB in the beginning and 184.5MB in the end (delta: 1.4MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 34.44ms. Allocated memory is still 249.6MB. Free memory was 184.5MB in the beginning and 182.4MB in the end (delta: 2.1MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * RCFGBuilder took 399.34ms. Allocated memory is still 249.6MB. Free memory was 182.1MB in the beginning and 166.7MB in the end (delta: 15.4MB). Peak memory consumption was 15.7MB. Max. memory is 8.0GB. * TraceAbstraction took 184947.63ms. Allocated memory is still 249.6MB. Free memory was 166.0MB in the beginning and 105.7MB in the end (delta: 60.3MB). Peak memory consumption was 61.8MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - CounterExampleResult [Line: 42]: a call to reach_error is reachable a call to reach_error is reachable We found a FailurePath: [L78] unsigned int z; [L79] unsigned int k; [L80] unsigned long long x; [L81] unsigned long long y; [L82] unsigned long long c; [L83] z = __VERIFIER_nondet_uint() [L84] k = __VERIFIER_nondet_uint() [L85] x = 1 [L86] EXPR \read(z) [L86] y = z [L87] c = 1 [L88] CALL func_to_recursive_line_28_to_36_0(&c, &y, &z, &x, &k) VAL [c={8:0}, k={7:0}, x={5:0}, y={6:0}, z={4:0}] [L57] EXPR \read(*x) [L57] EXPR \read(*z) [L57] EXPR \read(*x) [L57] EXPR \read(*y) VAL [c={8:0}, c={8:0}, k={7:0}, k={7:0}, x={5:0}, x={5:0}, y={6:0}, y={6:0}, z={4:0}, z={4:0}] [L57] CALL __VERIFIER_assert((((((*x) * (*z)) - (*x)) - (*y)) + 1) == 0) VAL [\old(cond)=1] [L38] COND FALSE !(!cond) VAL [\old(cond)=1, cond=1] [L57] RET __VERIFIER_assert((((((*x) * (*z)) - (*x)) - (*y)) + 1) == 0) VAL [c={8:0}, c={8:0}, k={7:0}, k={7:0}, x={5:0}, x={5:0}, y={6:0}, y={6:0}, z={4:0}, z={4:0}] [L58] EXPR \read(*c) [L58] EXPR \read(*k) VAL [c={8:0}, c={8:0}, k={7:0}, k={7:0}, x={5:0}, x={5:0}, y={6:0}, y={6:0}, z={4:0}, z={4:0}] [L58] COND TRUE !((*c) < (*k)) [L88] RET func_to_recursive_line_28_to_36_0(&c, &y, &z, &x, &k) VAL [c={8:0}, k={7:0}, x={5:0}, y={6:0}, z={4:0}] [L89] EXPR \read(x) [L89] EXPR \read(z) [L89] x = x * (z - 1) [L90] EXPR \read(x) [L90] EXPR \read(y) [L90] CALL __VERIFIER_assert(((1 + x) - y) == 0) VAL [\old(cond)=0] [L38] COND TRUE !cond VAL [\old(cond)=0, cond=0] [L42] reach_error() VAL [\old(cond)=0, cond=0] - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 20 locations, 1 error locations. Started 1 CEGAR loops. OverallTime: 184.9s, OverallIterations: 3, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 172.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 18 mSolverCounterUnknown, 100 SdHoareTripleChecker+Valid, 80.2s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 100 mSDsluCounter, 224 SdHoareTripleChecker+Invalid, 80.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 198 mSDsCounter, 36 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 297 IncrementalHoareTripleChecker+Invalid, 351 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 36 mSolverCounterUnsat, 26 mSDtfsCounter, 297 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 18 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 57 GetRequests, 14 SyntacticMatches, 1 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 196 ImplicationChecksByTransitivity, 101.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=61occurred in iteration=2, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 2 MinimizatonAttempts, 4 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.9s SatisfiabilityAnalysisTime, 10.8s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 41 ConstructedInterpolants, 4 QuantifiedInterpolants, 1056 SizeOfPredicates, 51 NumberOfNonLiveVariables, 392 ConjunctsInSsa, 155 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 2/10 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! [2023-12-20 00:26:34,997 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...