/usr/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 -tc ../../../trunk/examples/toolchains/AutomizerC.xml -i ../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c -------------------------------------------------------------------------------- This is Ultimate 0.2.3-dev-f954360 [2023-04-01 19:39:13,419 INFO L177 SettingsManager]: Resetting all preferences to default values... [2023-04-01 19:39:13,420 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2023-04-01 19:39:13,459 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2023-04-01 19:39:13,513 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2023-04-01 19:39:13,514 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2023-04-01 19:39:13,514 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2023-04-01 19:39:13,516 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2023-04-01 19:39:13,549 INFO L113 SettingsManager]: Loading preferences was successful [2023-04-01 19:39:13,549 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2023-04-01 19:39:13,550 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2023-04-01 19:39:13,550 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2023-04-01 19:39:13,551 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2023-04-01 19:39:13,551 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2023-04-01 19:39:13,552 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2023-04-01 19:39:13,552 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2023-04-01 19:39:13,552 INFO L138 SettingsManager]: * Use SBE=true [2023-04-01 19:39:13,552 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2023-04-01 19:39:13,553 INFO L138 SettingsManager]: * sizeof long=4 [2023-04-01 19:39:13,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2023-04-01 19:39:13,553 INFO L138 SettingsManager]: * sizeof POINTER=4 [2023-04-01 19:39:13,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2023-04-01 19:39:13,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2023-04-01 19:39:13,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2023-04-01 19:39:13,554 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2023-04-01 19:39:13,554 INFO L138 SettingsManager]: * sizeof long double=12 [2023-04-01 19:39:13,554 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2023-04-01 19:39:13,554 INFO L138 SettingsManager]: * Use constant arrays=true [2023-04-01 19:39:13,554 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2023-04-01 19:39:13,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2023-04-01 19:39:13,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2023-04-01 19:39:13,555 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2023-04-01 19:39:13,555 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 19:39:13,555 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2023-04-01 19:39:13,555 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2023-04-01 19:39:13,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2023-04-01 19:39:13,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2023-04-01 19:39:13,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2023-04-01 19:39:13,556 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2023-04-01 19:39:13,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2023-04-01 19:39:13,556 INFO L138 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2023-04-01 19:39:13,557 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2023-04-01 19:39:13,557 INFO L138 SettingsManager]: * Independence relation used for large block encoding in concurrent analysis=SYNTACTIC [2023-04-01 19:39:13,557 INFO L138 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2023-04-01 19:39:13,813 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2023-04-01 19:39:13,844 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2023-04-01 19:39:13,846 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2023-04-01 19:39:13,847 INFO L271 PluginConnector]: Initializing CDTParser... [2023-04-01 19:39:13,847 INFO L275 PluginConnector]: CDTParser initialized [2023-04-01 19:39:13,848 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2023-04-01 19:39:15,085 INFO L500 CDTParser]: Created temporary CDT project at NULL [2023-04-01 19:39:15,254 INFO L351 CDTParser]: Found 1 translation units. [2023-04-01 19:39:15,255 INFO L172 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/array-cav19/array_init_pair_symmetr2.c [2023-04-01 19:39:15,259 INFO L394 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0235aac6f/bddad5b921d34e748e6a152604252598/FLAGd02900173 [2023-04-01 19:39:15,271 INFO L402 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/0235aac6f/bddad5b921d34e748e6a152604252598 [2023-04-01 19:39:15,273 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2023-04-01 19:39:15,274 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2023-04-01 19:39:15,274 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2023-04-01 19:39:15,275 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2023-04-01 19:39:15,278 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2023-04-01 19:39:15,279 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:39:15" (1/1) ... [2023-04-01 19:39:15,280 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@64f8f9f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:39:15, skipping insertion in model container [2023-04-01 19:39:15,280 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 01.04 07:39:15" (1/1) ... [2023-04-01 19:39:15,287 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2023-04-01 19:39:15,297 INFO L178 MainTranslator]: Built tables and reachable declarations [2023-04-01 19:39:15,442 WARN L247 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-cav19/array_init_pair_symmetr2.c[415,428] [2023-04-01 19:39:15,467 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 19:39:15,477 INFO L203 MainTranslator]: Completed pre-run [2023-04-01 19:39:15,492 WARN L247 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-cav19/array_init_pair_symmetr2.c[415,428] [2023-04-01 19:39:15,508 INFO L209 PostProcessor]: Analyzing one entry point: main [2023-04-01 19:39:15,522 INFO L208 MainTranslator]: Completed translation [2023-04-01 19:39:15,523 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:39:15 WrapperNode [2023-04-01 19:39:15,523 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2023-04-01 19:39:15,524 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2023-04-01 19:39:15,524 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2023-04-01 19:39:15,524 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2023-04-01 19:39:15,535 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:39:15" (1/1) ... [2023-04-01 19:39:15,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:39:15" (1/1) ... [2023-04-01 19:39:15,549 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:39:15" (1/1) ... [2023-04-01 19:39:15,549 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:39:15" (1/1) ... [2023-04-01 19:39:15,563 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:39:15" (1/1) ... [2023-04-01 19:39:15,566 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:39:15" (1/1) ... [2023-04-01 19:39:15,567 INFO L185 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:39:15" (1/1) ... [2023-04-01 19:39:15,568 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:39:15" (1/1) ... [2023-04-01 19:39:15,570 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2023-04-01 19:39:15,571 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2023-04-01 19:39:15,571 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2023-04-01 19:39:15,571 INFO L275 PluginConnector]: RCFGBuilder initialized [2023-04-01 19:39:15,571 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:39:15" (1/1) ... [2023-04-01 19:39:15,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2023-04-01 19:39:15,589 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 19:39:15,606 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2023-04-01 19:39:15,633 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2023-04-01 19:39:15,650 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2023-04-01 19:39:15,651 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2023-04-01 19:39:15,652 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2023-04-01 19:39:15,652 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2023-04-01 19:39:15,652 INFO L138 BoogieDeclarations]: Found implementation of procedure __VERIFIER_assert [2023-04-01 19:39:15,652 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2023-04-01 19:39:15,652 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2023-04-01 19:39:15,652 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2023-04-01 19:39:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2023-04-01 19:39:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2023-04-01 19:39:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2023-04-01 19:39:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_assert [2023-04-01 19:39:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2023-04-01 19:39:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2023-04-01 19:39:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2023-04-01 19:39:15,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2023-04-01 19:39:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2023-04-01 19:39:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2023-04-01 19:39:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2023-04-01 19:39:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2023-04-01 19:39:15,654 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2023-04-01 19:39:15,736 INFO L236 CfgBuilder]: Building ICFG [2023-04-01 19:39:15,738 INFO L262 CfgBuilder]: Building CFG for each procedure with an implementation [2023-04-01 19:39:15,927 INFO L277 CfgBuilder]: Performing block encoding [2023-04-01 19:39:15,933 INFO L297 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2023-04-01 19:39:15,933 INFO L302 CfgBuilder]: Removed 3 assume(true) statements. [2023-04-01 19:39:15,935 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:39:15 BoogieIcfgContainer [2023-04-01 19:39:15,935 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2023-04-01 19:39:15,937 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2023-04-01 19:39:15,937 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2023-04-01 19:39:15,940 INFO L275 PluginConnector]: TraceAbstraction initialized [2023-04-01 19:39:15,940 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 01.04 07:39:15" (1/3) ... [2023-04-01 19:39:15,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f458ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:39:15, skipping insertion in model container [2023-04-01 19:39:15,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 01.04 07:39:15" (2/3) ... [2023-04-01 19:39:15,941 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5f458ee6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.04 07:39:15, skipping insertion in model container [2023-04-01 19:39:15,941 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.04 07:39:15" (3/3) ... [2023-04-01 19:39:15,943 INFO L112 eAbstractionObserver]: Analyzing ICFG array_init_pair_symmetr2.c [2023-04-01 19:39:15,958 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2023-04-01 19:39:15,959 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2023-04-01 19:39:16,004 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2023-04-01 19:39:16,010 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=LoopsAndPotentialCycles, 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;@40349097, mLbeIndependenceSettings=[IndependenceType=SYNTACTIC, AbstractionType=NONE, UseConditional=, UseSemiCommutativity=, Solver=, SolverTimeout=] [2023-04-01 19:39:16,010 INFO L358 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2023-04-01 19:39:16,014 INFO L276 IsEmpty]: Start isEmpty. Operand has 35 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) [2023-04-01 19:39:16,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 16 [2023-04-01 19:39:16,021 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 19:39:16,021 INFO L195 NwaCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 19:39:16,022 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 19:39:16,026 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 19:39:16,026 INFO L85 PathProgramCache]: Analyzing trace with hash 847316250, now seen corresponding path program 1 times [2023-04-01 19:39:16,034 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 19:39:16,034 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1794824691] [2023-04-01 19:39:16,035 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 19:39:16,035 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 19:39:16,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:16,348 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 19:39:16,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:16,391 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2023-04-01 19:39:16,391 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 19:39:16,391 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1794824691] [2023-04-01 19:39:16,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1794824691] provided 1 perfect and 0 imperfect interpolant sequences [2023-04-01 19:39:16,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2023-04-01 19:39:16,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2023-04-01 19:39:16,394 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1431433190] [2023-04-01 19:39:16,394 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2023-04-01 19:39:16,398 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2023-04-01 19:39:16,398 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 19:39:16,441 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2023-04-01 19:39:16,442 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2023-04-01 19:39:16,444 INFO L87 Difference]: Start difference. First operand has 35 states, 23 states have (on average 1.391304347826087) internal successors, (32), 24 states have internal predecessors, (32), 6 states have call successors, (6), 4 states have call predecessors, (6), 4 states have return successors, (6), 6 states have call predecessors, (6), 6 states have call successors, (6) Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 19:39:16,634 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 19:39:16,634 INFO L93 Difference]: Finished difference Result 72 states and 104 transitions. [2023-04-01 19:39:16,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2023-04-01 19:39:16,640 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) Word has length 15 [2023-04-01 19:39:16,640 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 19:39:16,645 INFO L225 Difference]: With dead ends: 72 [2023-04-01 19:39:16,646 INFO L226 Difference]: Without dead ends: 38 [2023-04-01 19:39:16,648 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2023-04-01 19:39:16,651 INFO L413 NwaCegarLoop]: 6 mSDtfsCounter, 57 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 70 mSolverCounterSat, 31 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 58 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 101 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 31 IncrementalHoareTripleChecker+Valid, 70 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2023-04-01 19:39:16,652 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [58 Valid, 12 Invalid, 101 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [31 Valid, 70 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2023-04-01 19:39:16,667 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2023-04-01 19:39:16,706 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 32. [2023-04-01 19:39:16,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 32 states, 22 states have (on average 1.1363636363636365) internal successors, (25), 22 states have internal predecessors, (25), 6 states have call successors, (6), 4 states have call predecessors, (6), 3 states have return successors, (5), 5 states have call predecessors, (5), 5 states have call successors, (5) [2023-04-01 19:39:16,708 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32 states to 32 states and 36 transitions. [2023-04-01 19:39:16,709 INFO L78 Accepts]: Start accepts. Automaton has 32 states and 36 transitions. Word has length 15 [2023-04-01 19:39:16,710 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 19:39:16,710 INFO L495 AbstractCegarLoop]: Abstraction has 32 states and 36 transitions. [2023-04-01 19:39:16,710 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 3 states have internal predecessors, (11), 3 states have call successors, (3), 3 states have call predecessors, (3), 1 states have return successors, (1), 1 states have call predecessors, (1), 1 states have call successors, (1) [2023-04-01 19:39:16,710 INFO L276 IsEmpty]: Start isEmpty. Operand 32 states and 36 transitions. [2023-04-01 19:39:16,712 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2023-04-01 19:39:16,712 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 19:39:16,712 INFO L195 NwaCegarLoop]: trace histogram [3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 19:39:16,716 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2023-04-01 19:39:16,717 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 19:39:16,719 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 19:39:16,719 INFO L85 PathProgramCache]: Analyzing trace with hash 1785733231, now seen corresponding path program 1 times [2023-04-01 19:39:16,719 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 19:39:16,720 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [54173101] [2023-04-01 19:39:16,720 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 19:39:16,721 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 19:39:16,800 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:16,924 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 19:39:16,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:16,937 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-01 19:39:16,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:16,946 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-01 19:39:16,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:16,955 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-01 19:39:16,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:16,965 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-01 19:39:16,965 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 19:39:16,965 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [54173101] [2023-04-01 19:39:16,965 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [54173101] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 19:39:16,966 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1636284962] [2023-04-01 19:39:16,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 19:39:16,966 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 19:39:16,966 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 19:39:16,969 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) [2023-04-01 19:39:16,997 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2023-04-01 19:39:17,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:17,080 INFO L262 TraceCheckSpWp]: Trace formula consists of 158 conjuncts, 4 conjunts are in the unsatisfiable core [2023-04-01 19:39:17,086 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 19:39:17,254 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-01 19:39:17,254 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 19:39:17,350 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2023-04-01 19:39:17,354 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1636284962] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 19:39:17,354 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 19:39:17,354 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 5, 5] total 11 [2023-04-01 19:39:17,356 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1082689267] [2023-04-01 19:39:17,358 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 19:39:17,361 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2023-04-01 19:39:17,361 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 19:39:17,362 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2023-04-01 19:39:17,363 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=69, Unknown=0, NotChecked=0, Total=110 [2023-04-01 19:39:17,363 INFO L87 Difference]: Start difference. First operand 32 states and 36 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 7 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2023-04-01 19:39:17,680 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 19:39:17,681 INFO L93 Difference]: Finished difference Result 80 states and 102 transitions. [2023-04-01 19:39:17,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2023-04-01 19:39:17,681 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 7 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) Word has length 35 [2023-04-01 19:39:17,682 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 19:39:17,683 INFO L225 Difference]: With dead ends: 80 [2023-04-01 19:39:17,683 INFO L226 Difference]: Without dead ends: 65 [2023-04-01 19:39:17,684 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 87 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=89, Invalid=151, Unknown=0, NotChecked=0, Total=240 [2023-04-01 19:39:17,685 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 104 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 117 mSolverCounterSat, 85 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 104 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 202 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 85 IncrementalHoareTripleChecker+Valid, 117 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2023-04-01 19:39:17,685 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [104 Valid, 11 Invalid, 202 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [85 Valid, 117 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2023-04-01 19:39:17,686 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 65 states. [2023-04-01 19:39:17,699 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 65 to 56. [2023-04-01 19:39:17,699 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 56 states, 37 states have (on average 1.0810810810810811) internal successors, (40), 37 states have internal predecessors, (40), 15 states have call successors, (15), 4 states have call predecessors, (15), 3 states have return successors, (14), 14 states have call predecessors, (14), 14 states have call successors, (14) [2023-04-01 19:39:17,701 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 69 transitions. [2023-04-01 19:39:17,701 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 69 transitions. Word has length 35 [2023-04-01 19:39:17,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 19:39:17,701 INFO L495 AbstractCegarLoop]: Abstraction has 56 states and 69 transitions. [2023-04-01 19:39:17,701 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 10 states have internal predecessors, (35), 7 states have call successors, (14), 5 states have call predecessors, (14), 3 states have return successors, (11), 5 states have call predecessors, (11), 4 states have call successors, (11) [2023-04-01 19:39:17,702 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 69 transitions. [2023-04-01 19:39:17,704 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 96 [2023-04-01 19:39:17,704 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 19:39:17,704 INFO L195 NwaCegarLoop]: trace histogram [12, 12, 12, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 19:39:17,713 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Ended with exit code 0 [2023-04-01 19:39:17,913 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 19:39:17,914 INFO L420 AbstractCegarLoop]: === Iteration 3 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 19:39:17,914 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 19:39:17,915 INFO L85 PathProgramCache]: Analyzing trace with hash -283360786, now seen corresponding path program 2 times [2023-04-01 19:39:17,915 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 19:39:17,915 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1588390151] [2023-04-01 19:39:17,915 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 19:39:17,915 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 19:39:17,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,229 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 19:39:18,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,243 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-01 19:39:18,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,251 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-01 19:39:18,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,260 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-01 19:39:18,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,279 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-01 19:39:18,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,282 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-01 19:39:18,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,286 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-01 19:39:18,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-01 19:39:18,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,312 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-01 19:39:18,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,316 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-01 19:39:18,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,320 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-01 19:39:18,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,328 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-01 19:39:18,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,333 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-01 19:39:18,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:18,354 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-04-01 19:39:18,354 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 19:39:18,354 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1588390151] [2023-04-01 19:39:18,355 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1588390151] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 19:39:18,355 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1247028288] [2023-04-01 19:39:18,355 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2023-04-01 19:39:18,355 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 19:39:18,355 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 19:39:18,361 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) [2023-04-01 19:39:18,387 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2023-04-01 19:39:18,476 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2023-04-01 19:39:18,476 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-01 19:39:18,478 INFO L262 TraceCheckSpWp]: Trace formula consists of 311 conjuncts, 7 conjunts are in the unsatisfiable core [2023-04-01 19:39:18,484 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 19:39:18,732 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-04-01 19:39:18,732 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 19:39:18,890 INFO L134 CoverageAnalysis]: Checked inductivity of 320 backedges. 0 proven. 40 refuted. 0 times theorem prover too weak. 280 trivial. 0 not checked. [2023-04-01 19:39:18,890 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1247028288] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 19:39:18,890 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 19:39:18,890 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8, 8] total 20 [2023-04-01 19:39:18,890 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281404515] [2023-04-01 19:39:18,891 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 19:39:18,891 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2023-04-01 19:39:18,892 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 19:39:18,893 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2023-04-01 19:39:18,893 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=149, Invalid=231, Unknown=0, NotChecked=0, Total=380 [2023-04-01 19:39:18,893 INFO L87 Difference]: Start difference. First operand 56 states and 69 transitions. Second operand has 20 states, 20 states have (on average 3.1) internal successors, (62), 19 states have internal predecessors, (62), 16 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (38), 14 states have call predecessors, (38), 13 states have call successors, (38) [2023-04-01 19:39:19,459 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 19:39:19,460 INFO L93 Difference]: Finished difference Result 158 states and 210 transitions. [2023-04-01 19:39:19,460 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2023-04-01 19:39:19,461 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 19 states have internal predecessors, (62), 16 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (38), 14 states have call predecessors, (38), 13 states have call successors, (38) Word has length 95 [2023-04-01 19:39:19,461 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 19:39:19,462 INFO L225 Difference]: With dead ends: 158 [2023-04-01 19:39:19,463 INFO L226 Difference]: Without dead ends: 137 [2023-04-01 19:39:19,463 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 234 GetRequests, 205 SyntacticMatches, 0 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 215 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=329, Invalid=601, Unknown=0, NotChecked=0, Total=930 [2023-04-01 19:39:19,464 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 347 mSDsluCounter, 6 mSDsCounter, 0 mSdLazyCounter, 201 mSolverCounterSat, 302 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 11 SdHoareTripleChecker+Invalid, 503 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 302 IncrementalHoareTripleChecker+Valid, 201 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2023-04-01 19:39:19,464 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 11 Invalid, 503 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [302 Valid, 201 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2023-04-01 19:39:19,465 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 137 states. [2023-04-01 19:39:19,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 137 to 104. [2023-04-01 19:39:19,487 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 104 states, 67 states have (on average 1.044776119402985) internal successors, (70), 67 states have internal predecessors, (70), 33 states have call successors, (33), 4 states have call predecessors, (33), 3 states have return successors, (32), 32 states have call predecessors, (32), 32 states have call successors, (32) [2023-04-01 19:39:19,488 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 104 states to 104 states and 135 transitions. [2023-04-01 19:39:19,488 INFO L78 Accepts]: Start accepts. Automaton has 104 states and 135 transitions. Word has length 95 [2023-04-01 19:39:19,489 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 19:39:19,489 INFO L495 AbstractCegarLoop]: Abstraction has 104 states and 135 transitions. [2023-04-01 19:39:19,489 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 3.1) internal successors, (62), 19 states have internal predecessors, (62), 16 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (38), 14 states have call predecessors, (38), 13 states have call successors, (38) [2023-04-01 19:39:19,489 INFO L276 IsEmpty]: Start isEmpty. Operand 104 states and 135 transitions. [2023-04-01 19:39:19,493 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 216 [2023-04-01 19:39:19,493 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 19:39:19,493 INFO L195 NwaCegarLoop]: trace histogram [30, 30, 30, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 19:39:19,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2023-04-01 19:39:19,699 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,SelfDestructingSolverStorable2 [2023-04-01 19:39:19,700 INFO L420 AbstractCegarLoop]: === Iteration 4 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 19:39:19,700 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 19:39:19,700 INFO L85 PathProgramCache]: Analyzing trace with hash 1980402348, now seen corresponding path program 3 times [2023-04-01 19:39:19,700 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 19:39:19,701 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1067875198] [2023-04-01 19:39:19,701 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 19:39:19,701 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 19:39:19,771 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,144 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 19:39:20,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,151 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-01 19:39:20,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-01 19:39:20,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,174 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-01 19:39:20,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,181 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-01 19:39:20,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,184 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-01 19:39:20,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,187 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-01 19:39:20,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,211 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-01 19:39:20,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,214 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-01 19:39:20,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,218 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-01 19:39:20,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,221 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-01 19:39:20,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,224 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-01 19:39:20,226 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,228 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-01 19:39:20,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,234 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-01 19:39:20,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,238 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-01 19:39:20,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,241 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-01 19:39:20,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,244 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-01 19:39:20,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,247 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-01 19:39:20,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,250 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-01 19:39:20,252 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,254 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-01 19:39:20,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,258 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-04-01 19:39:20,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,262 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-01 19:39:20,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,269 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-01 19:39:20,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,278 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-01 19:39:20,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,289 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-01 19:39:20,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,292 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-01 19:39:20,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,301 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-01 19:39:20,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,305 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-01 19:39:20,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,308 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-04-01 19:39:20,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,313 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-04-01 19:39:20,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,317 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-01 19:39:20,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:20,325 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 280 refuted. 0 times theorem prover too weak. 1840 trivial. 0 not checked. [2023-04-01 19:39:20,325 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 19:39:20,325 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1067875198] [2023-04-01 19:39:20,327 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1067875198] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 19:39:20,329 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [62976368] [2023-04-01 19:39:20,329 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2023-04-01 19:39:20,331 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 19:39:20,332 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 19:39:20,333 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) [2023-04-01 19:39:20,358 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2023-04-01 19:39:21,207 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 11 check-sat command(s) [2023-04-01 19:39:21,207 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2023-04-01 19:39:21,211 INFO L262 TraceCheckSpWp]: Trace formula consists of 362 conjuncts, 13 conjunts are in the unsatisfiable core [2023-04-01 19:39:21,217 INFO L285 TraceCheckSpWp]: Computing forward predicates... [2023-04-01 19:39:21,591 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2023-04-01 19:39:21,591 INFO L327 TraceCheckSpWp]: Computing backward predicates... [2023-04-01 19:39:21,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2120 backedges. 0 proven. 100 refuted. 0 times theorem prover too weak. 2020 trivial. 0 not checked. [2023-04-01 19:39:21,969 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleZ3 [62976368] provided 0 perfect and 2 imperfect interpolant sequences [2023-04-01 19:39:21,969 INFO L185 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2023-04-01 19:39:21,970 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [15, 14, 14] total 38 [2023-04-01 19:39:21,970 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547479941] [2023-04-01 19:39:21,970 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2023-04-01 19:39:21,972 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 38 states [2023-04-01 19:39:21,972 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2023-04-01 19:39:21,974 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 38 interpolants. [2023-04-01 19:39:21,975 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=581, Invalid=825, Unknown=0, NotChecked=0, Total=1406 [2023-04-01 19:39:21,975 INFO L87 Difference]: Start difference. First operand 104 states and 135 transitions. Second operand has 38 states, 38 states have (on average 2.789473684210526) internal successors, (106), 37 states have internal predecessors, (106), 14 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (38), 12 states have call predecessors, (38), 13 states have call successors, (38) [2023-04-01 19:39:23,265 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2023-04-01 19:39:23,265 INFO L93 Difference]: Finished difference Result 314 states and 426 transitions. [2023-04-01 19:39:23,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 27 states. [2023-04-01 19:39:23,266 INFO L78 Accepts]: Start accepts. Automaton has has 38 states, 38 states have (on average 2.789473684210526) internal successors, (106), 37 states have internal predecessors, (106), 14 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (38), 12 states have call predecessors, (38), 13 states have call successors, (38) Word has length 215 [2023-04-01 19:39:23,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2023-04-01 19:39:23,269 INFO L225 Difference]: With dead ends: 314 [2023-04-01 19:39:23,269 INFO L226 Difference]: Without dead ends: 281 [2023-04-01 19:39:23,270 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 528 GetRequests, 469 SyntacticMatches, 0 SemanticMatches, 59 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1007 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=1268, Invalid=2392, Unknown=0, NotChecked=0, Total=3660 [2023-04-01 19:39:23,272 INFO L413 NwaCegarLoop]: 5 mSDtfsCounter, 557 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 432 mSolverCounterSat, 556 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 557 SdHoareTripleChecker+Valid, 17 SdHoareTripleChecker+Invalid, 988 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 556 IncrementalHoareTripleChecker+Valid, 432 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2023-04-01 19:39:23,274 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [557 Valid, 17 Invalid, 988 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [556 Valid, 432 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2023-04-01 19:39:23,277 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 281 states. [2023-04-01 19:39:23,328 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 281 to 200. [2023-04-01 19:39:23,330 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 200 states, 127 states have (on average 1.0236220472440944) internal successors, (130), 127 states have internal predecessors, (130), 69 states have call successors, (69), 4 states have call predecessors, (69), 3 states have return successors, (68), 68 states have call predecessors, (68), 68 states have call successors, (68) [2023-04-01 19:39:23,335 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 267 transitions. [2023-04-01 19:39:23,335 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 267 transitions. Word has length 215 [2023-04-01 19:39:23,336 INFO L84 Accepts]: Finished accepts. word is rejected. [2023-04-01 19:39:23,336 INFO L495 AbstractCegarLoop]: Abstraction has 200 states and 267 transitions. [2023-04-01 19:39:23,337 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 38 states, 38 states have (on average 2.789473684210526) internal successors, (106), 37 states have internal predecessors, (106), 14 states have call successors, (41), 5 states have call predecessors, (41), 3 states have return successors, (38), 12 states have call predecessors, (38), 13 states have call successors, (38) [2023-04-01 19:39:23,337 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 267 transitions. [2023-04-01 19:39:23,348 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 456 [2023-04-01 19:39:23,349 INFO L187 NwaCegarLoop]: Found error trace [2023-04-01 19:39:23,349 INFO L195 NwaCegarLoop]: trace histogram [66, 66, 66, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 22, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2023-04-01 19:39:23,364 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2023-04-01 19:39:23,557 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 19:39:23,557 INFO L420 AbstractCegarLoop]: === Iteration 5 === Targeting __VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION === [__VERIFIER_assertErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2023-04-01 19:39:23,557 INFO L145 PredicateUnifier]: Initialized classic predicate unifier [2023-04-01 19:39:23,557 INFO L85 PathProgramCache]: Analyzing trace with hash -267783384, now seen corresponding path program 4 times [2023-04-01 19:39:23,558 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2023-04-01 19:39:23,558 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1238177486] [2023-04-01 19:39:23,558 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2023-04-01 19:39:23,558 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2023-04-01 19:39:23,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:24,981 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2023-04-01 19:39:24,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:24,987 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2023-04-01 19:39:24,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:24,990 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2023-04-01 19:39:24,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:24,993 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2023-04-01 19:39:24,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:24,995 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2023-04-01 19:39:24,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:24,998 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 30 [2023-04-01 19:39:24,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,000 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2023-04-01 19:39:25,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,009 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2023-04-01 19:39:25,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,012 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 48 [2023-04-01 19:39:25,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,015 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 53 [2023-04-01 19:39:25,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,018 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 61 [2023-04-01 19:39:25,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,020 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 66 [2023-04-01 19:39:25,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,022 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2023-04-01 19:39:25,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,025 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 79 [2023-04-01 19:39:25,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,050 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2023-04-01 19:39:25,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,054 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2023-04-01 19:39:25,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,057 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 97 [2023-04-01 19:39:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,060 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 102 [2023-04-01 19:39:25,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,062 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 107 [2023-04-01 19:39:25,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,064 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 115 [2023-04-01 19:39:25,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,066 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2023-04-01 19:39:25,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,069 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2023-04-01 19:39:25,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,071 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2023-04-01 19:39:25,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,075 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2023-04-01 19:39:25,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,078 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2023-04-01 19:39:25,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,081 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2023-04-01 19:39:25,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,084 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2023-04-01 19:39:25,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,087 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2023-04-01 19:39:25,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,091 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2023-04-01 19:39:25,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,094 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 174 [2023-04-01 19:39:25,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,098 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 179 [2023-04-01 19:39:25,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,102 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2023-04-01 19:39:25,103 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,106 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2023-04-01 19:39:25,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,109 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2023-04-01 19:39:25,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,111 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2023-04-01 19:39:25,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,114 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2023-04-01 19:39:25,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,117 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 215 [2023-04-01 19:39:25,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,120 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 223 [2023-04-01 19:39:25,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,122 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2023-04-01 19:39:25,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,125 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2023-04-01 19:39:25,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,128 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 241 [2023-04-01 19:39:25,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,132 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 246 [2023-04-01 19:39:25,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,135 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 251 [2023-04-01 19:39:25,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,137 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 259 [2023-04-01 19:39:25,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,140 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 264 [2023-04-01 19:39:25,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,143 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 269 [2023-04-01 19:39:25,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,145 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2023-04-01 19:39:25,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,149 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 282 [2023-04-01 19:39:25,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,154 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 287 [2023-04-01 19:39:25,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,158 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 295 [2023-04-01 19:39:25,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,163 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 300 [2023-04-01 19:39:25,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,166 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 305 [2023-04-01 19:39:25,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,169 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 313 [2023-04-01 19:39:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,172 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2023-04-01 19:39:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,175 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2023-04-01 19:39:25,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,178 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2023-04-01 19:39:25,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,180 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 336 [2023-04-01 19:39:25,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,183 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 341 [2023-04-01 19:39:25,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,185 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 349 [2023-04-01 19:39:25,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,189 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 354 [2023-04-01 19:39:25,191 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,195 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 359 [2023-04-01 19:39:25,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,198 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 367 [2023-04-01 19:39:25,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,201 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2023-04-01 19:39:25,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,203 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 377 [2023-04-01 19:39:25,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,206 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 385 [2023-04-01 19:39:25,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,210 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 390 [2023-04-01 19:39:25,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,213 INFO L376 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 395 [2023-04-01 19:39:25,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2023-04-01 19:39:25,219 INFO L134 CoverageAnalysis]: Checked inductivity of 10472 backedges. 0 proven. 1408 refuted. 0 times theorem prover too weak. 9064 trivial. 0 not checked. [2023-04-01 19:39:25,219 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2023-04-01 19:39:25,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1238177486] [2023-04-01 19:39:25,219 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1238177486] provided 0 perfect and 1 imperfect interpolant sequences [2023-04-01 19:39:25,219 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1391349835] [2023-04-01 19:39:25,219 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2023-04-01 19:39:25,219 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2023-04-01 19:39:25,220 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2023-04-01 19:39:25,225 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) [2023-04-01 19:39:25,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process