/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/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/single_assertion_test.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 22:51:01,468 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 22:51:01,471 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 22:51:01,508 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 22:51:01,508 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 22:51:01,510 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 22:51:01,512 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 22:51:01,514 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 22:51:01,515 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 22:51:01,518 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 22:51:01,519 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 22:51:01,520 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 22:51:01,520 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 22:51:01,522 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 22:51:01,523 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 22:51:01,525 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 22:51:01,525 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 22:51:01,526 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 22:51:01,527 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 22:51:01,531 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 22:51:01,532 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 22:51:01,533 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 22:51:01,534 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 22:51:01,535 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 22:51:01,539 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-01 22:51:01,539 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-01 22:51:01,539 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-01 22:51:01,541 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-01 22:51:01,541 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-01 22:51:01,541 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-01 22:51:01,542 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-01 22:51:01,542 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-01 22:51:01,543 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-01 22:51:01,544 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-01 22:51:01,545 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-01 22:51:01,545 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-01 22:51:01,545 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-01 22:51:01,545 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-01 22:51:01,546 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-01 22:51:01,546 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-01 22:51:01,546 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-01 22:51:01,547 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-01 22:51:01,570 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 22:51:01,571 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 22:51:01,571 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 22:51:01,571 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 22:51:01,572 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 22:51:01,572 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 22:51:01,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 22:51:01,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 22:51:01,573 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 22:51:01,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 22:51:01,573 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 22:51:01,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 22:51:01,574 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 22:51:01,574 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 22:51:01,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 22:51:01,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 22:51:01,574 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 22:51:01,574 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 22:51:01,574 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 22:51:01,574 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 22:51:01,575 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 22:51:01,575 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 22:51:01,575 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 22:51:01,575 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 22:51:01,576 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 22:51:01,576 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 22:51:01,576 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 22:51:01,576 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-01 22:51:01,576 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 22:51:01,576 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 22:51:01,577 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 22:51:01,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 22:51:01,577 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 22:51:01,577 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-01 22:51:01,577 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 22:51:01,577 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-01 22:51:01,577 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-01 22:51:01,577 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-01 22:51:01,578 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 22:51:01,797 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 22:51:01,822 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 22:51:01,826 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 22:51:01,827 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-01 22:51:01,827 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-01 22:51:01,828 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/single_assertion_test.bpl [2022-03-01 22:51:01,829 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/single_assertion_test.bpl' [2022-03-01 22:51:01,845 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 22:51:01,846 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-01 22:51:01,847 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 22:51:01,847 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 22:51:01,847 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 22:51:01,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:51:01" (1/1) ... [2022-03-01 22:51:01,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:51:01" (1/1) ... [2022-03-01 22:51:01,864 INFO L137 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-01 22:51:01,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 22:51:01,866 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 22:51:01,867 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 22:51:01,867 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 22:51:01,871 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:51:01" (1/1) ... [2022-03-01 22:51:01,871 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:51:01" (1/1) ... [2022-03-01 22:51:01,872 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:51:01" (1/1) ... [2022-03-01 22:51:01,872 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:51:01" (1/1) ... [2022-03-01 22:51:01,873 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:51:01" (1/1) ... [2022-03-01 22:51:01,875 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:51:01" (1/1) ... [2022-03-01 22:51:01,875 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:51:01" (1/1) ... [2022-03-01 22:51:01,876 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 22:51:01,877 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 22:51:01,877 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 22:51:01,877 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 22:51:01,883 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:51:01" (1/1) ... [2022-03-01 22:51:01,900 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 22:51:01,905 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:51:01,933 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) [2022-03-01 22:51:01,939 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 [2022-03-01 22:51:01,964 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-01 22:51:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 22:51:01,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 22:51:01,964 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread given in one single declaration [2022-03-01 22:51:01,964 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-03-01 22:51:01,964 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-03-01 22:51:01,965 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-01 22:51:01,998 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 22:51:01,999 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 22:51:02,086 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 22:51:02,092 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 22:51:02,093 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 22:51:02,095 INFO L202 PluginConnector]: Adding new model single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 10:51:02 BoogieIcfgContainer [2022-03-01 22:51:02,097 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 22:51:02,098 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 22:51:02,098 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 22:51:02,102 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 22:51:02,102 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 10:51:01" (1/2) ... [2022-03-01 22:51:02,103 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1f0570d9 and model type single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 10:51:02, skipping insertion in model container [2022-03-01 22:51:02,103 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 10:51:02" (2/2) ... [2022-03-01 22:51:02,104 INFO L111 eAbstractionObserver]: Analyzing ICFG single_assertion_test.bpl [2022-03-01 22:51:02,114 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 22:51:02,114 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 22:51:02,114 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-03-01 22:51:02,114 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 22:51:02,135 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:51:02,135 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:51:02,136 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:51:02,136 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:51:02,151 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-01 22:51:02,191 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-01 22:51:02,192 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:51:02,193 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-01 22:51:02,233 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-03-01 22:51:02,243 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 22:51:02,249 INFO L339 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-01 22:51:02,249 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-01 22:51:02,287 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 15 transitions and produced 16 states. [2022-03-01 22:51:02,289 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT] === [2022-03-01 22:51:02,292 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:51:02,292 INFO L85 PathProgramCache]: Analyzing trace with hash 43331864, now seen corresponding path program 1 times [2022-03-01 22:51:02,298 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:51:02,298 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1258068911] [2022-03-01 22:51:02,298 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:51:02,298 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:51:02,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:51:02,457 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:02,457 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:51:02,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1258068911] [2022-03-01 22:51:02,458 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1258068911] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:51:02,458 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [464617958] [2022-03-01 22:51:02,458 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:51:02,459 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:51:02,459 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:51:02,460 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) [2022-03-01 22:51:02,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:51:02,508 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjunts are in the unsatisfiable core [2022-03-01 22:51:02,523 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-01 22:51:02,525 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:51:02,584 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:02,584 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:51:02,688 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:02,688 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [464617958] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:51:02,688 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:51:02,688 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2022-03-01 22:51:02,690 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440573032] [2022-03-01 22:51:02,697 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:51:02,700 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 22:51:02,701 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:51:02,741 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 22:51:02,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-01 22:51:02,744 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:02,746 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:51:02,748 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 22:51:02,748 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:02,782 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 18 transitions and produced 19 states. [2022-03-01 22:51:02,783 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 22:51:02,801 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-01 22:51:03,000 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-03-01 22:51:03,001 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT] === [2022-03-01 22:51:03,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:51:03,002 INFO L85 PathProgramCache]: Analyzing trace with hash -1307749510, now seen corresponding path program 1 times [2022-03-01 22:51:03,002 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:51:03,002 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [473900083] [2022-03-01 22:51:03,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:51:03,002 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:51:03,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-01 22:51:03,010 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-01 22:51:03,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-01 22:51:03,022 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-01 22:51:03,022 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-01 22:51:03,023 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 4 remaining) [2022-03-01 22:51:03,024 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 4 remaining) [2022-03-01 22:51:03,025 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONASSERT (1 of 4 remaining) [2022-03-01 22:51:03,025 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONASSERT (0 of 4 remaining) [2022-03-01 22:51:03,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-01 22:51:03,030 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-03-01 22:51:03,030 WARN L235 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-03-01 22:51:03,030 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-03-01 22:51:03,034 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:51:03,034 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:51:03,034 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:51:03,034 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:51:03,034 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:51:03,035 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:51:03,035 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:51:03,035 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-01 22:51:03,036 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-03-01 22:51:03,037 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-01 22:51:03,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:51:03,040 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-03-01 22:51:03,048 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Waiting until timeout for monitored process [2022-03-01 22:51:03,050 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 22:51:03,051 INFO L339 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=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, 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, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-01 22:51:03,051 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-03-01 22:51:03,059 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 15 transitions and produced 16 states. [2022-03-01 22:51:03,059 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT (and 1 more)] === [2022-03-01 22:51:03,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:51:03,060 INFO L85 PathProgramCache]: Analyzing trace with hash 1095125660, now seen corresponding path program 1 times [2022-03-01 22:51:03,060 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:51:03,060 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118051518] [2022-03-01 22:51:03,060 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:51:03,060 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:51:03,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:51:03,089 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:03,090 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:51:03,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118051518] [2022-03-01 22:51:03,090 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118051518] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 22:51:03,090 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [202686539] [2022-03-01 22:51:03,090 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:51:03,090 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:51:03,091 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 22:51:03,120 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) [2022-03-01 22:51:03,121 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-01 22:51:03,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:51:03,143 INFO L263 TraceCheckSpWp]: Trace formula consists of 17 conjuncts, 5 conjunts are in the unsatisfiable core [2022-03-01 22:51:03,143 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 22:51:03,193 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:03,193 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 22:51:03,250 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:03,250 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [202686539] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 22:51:03,250 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 22:51:03,250 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [3, 3, 3] total 3 [2022-03-01 22:51:03,251 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [267064222] [2022-03-01 22:51:03,251 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 22:51:03,251 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-01 22:51:03,251 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:51:03,251 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-01 22:51:03,252 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-01 22:51:03,252 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:03,252 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:51:03,252 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.6666666666666665) internal successors, (8), 4 states have internal predecessors, (8), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 22:51:03,252 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:03,296 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 28 transitions and produced 29 states. [2022-03-01 22:51:03,296 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 22:51:03,314 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-03-01 22:51:03,514 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 22:51:03,515 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT (and 1 more)] === [2022-03-01 22:51:03,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:51:03,516 INFO L85 PathProgramCache]: Analyzing trace with hash 490899392, now seen corresponding path program 1 times [2022-03-01 22:51:03,516 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:51:03,516 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [229952803] [2022-03-01 22:51:03,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:51:03,516 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:51:03,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 22:51:03,544 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 5 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 22:51:03,545 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 22:51:03,545 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [229952803] [2022-03-01 22:51:03,545 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [229952803] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 22:51:03,545 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 22:51:03,545 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2022-03-01 22:51:03,545 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [806957389] [2022-03-01 22:51:03,546 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 22:51:03,546 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2022-03-01 22:51:03,546 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 22:51:03,547 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2022-03-01 22:51:03,547 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2022-03-01 22:51:03,547 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:03,547 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 22:51:03,547 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 2.8) internal successors, (14), 5 states have internal predecessors, (14), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-01 22:51:03,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2022-03-01 22:51:03,547 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 22:51:03,586 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 28 transitions and produced 29 states. [2022-03-01 22:51:03,586 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 22:51:03,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-03-01 22:51:03,587 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-03-01 22:51:03,587 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting threadErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT (and 1 more)] === [2022-03-01 22:51:03,587 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 22:51:03,588 INFO L85 PathProgramCache]: Analyzing trace with hash 490900353, now seen corresponding path program 1 times [2022-03-01 22:51:03,588 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 22:51:03,588 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [3011120] [2022-03-01 22:51:03,588 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 22:51:03,588 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 22:51:03,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-01 22:51:03,595 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-03-01 22:51:03,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-03-01 22:51:03,605 INFO L138 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-03-01 22:51:03,605 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-03-01 22:51:03,605 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-03-01 22:51:03,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 5 remaining) [2022-03-01 22:51:03,606 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2022-03-01 22:51:03,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONASSERT (1 of 5 remaining) [2022-03-01 22:51:03,607 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONASSERT (0 of 5 remaining) [2022-03-01 22:51:03,607 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-03-01 22:51:03,608 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1, 1] [2022-03-01 22:51:03,613 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-03-01 22:51:03,613 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 22:51:03,622 INFO L202 PluginConnector]: Adding new model single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 10:51:03 BasicIcfg [2022-03-01 22:51:03,622 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 22:51:03,623 INFO L158 Benchmark]: Toolchain (without parser) took 1776.65ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 158.7MB in the beginning and 174.5MB in the end (delta: -15.8MB). Peak memory consumption was 23.6MB. Max. memory is 8.0GB. [2022-03-01 22:51:03,623 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.29ms. Allocated memory is still 199.2MB. Free memory was 159.8MB in the beginning and 159.7MB in the end (delta: 69.0kB). There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 22:51:03,623 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.52ms. Allocated memory is still 199.2MB. Free memory was 158.7MB in the beginning and 157.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-01 22:51:03,625 INFO L158 Benchmark]: Boogie Preprocessor took 10.00ms. Allocated memory is still 199.2MB. Free memory was 157.1MB in the beginning and 156.2MB in the end (delta: 873.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 22:51:03,625 INFO L158 Benchmark]: RCFGBuilder took 219.86ms. Allocated memory is still 199.2MB. Free memory was 156.2MB in the beginning and 148.0MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-01 22:51:03,625 INFO L158 Benchmark]: TraceAbstraction took 1523.60ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 147.5MB in the beginning and 174.5MB in the end (delta: -27.1MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. [2022-03-01 22:51:03,626 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.29ms. Allocated memory is still 199.2MB. Free memory was 159.8MB in the beginning and 159.7MB in the end (delta: 69.0kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.52ms. Allocated memory is still 199.2MB. Free memory was 158.7MB in the beginning and 157.1MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.00ms. Allocated memory is still 199.2MB. Free memory was 157.1MB in the beginning and 156.2MB in the end (delta: 873.5kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 219.86ms. Allocated memory is still 199.2MB. Free memory was 156.2MB in the beginning and 148.0MB in the end (delta: 8.2MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 1523.60ms. Allocated memory was 199.2MB in the beginning and 239.1MB in the end (delta: 39.8MB). Free memory was 147.5MB in the beginning and 174.5MB in the end (delta: -27.1MB). Peak memory consumption was 12.1MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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 - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - 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: 41]: assertion can be violated assertion can be violated We found a FailurePath: [L19] 0 x := 0; VAL [x=0] [L21] 0 i := 0; VAL [i=0, x=0] [L22] COND TRUE 0 i < 2 VAL [i=0, x=0] [L24] FORK 0 fork i thread(i); VAL [i=0, i=0, x=0] [L25] 0 i := i + 1; VAL [i=0, i=1, x=0] [L22] COND TRUE 0 i < 2 VAL [i=1, i=0, x=0] [L38] 1 x := x + 1; VAL [i=0, i=1, x=1] [L41] 1 assert i == 0; VAL [i=0, i=1, x=1] [L24] FORK 0 fork i thread(i); VAL [i=1, i=1, x=1] [L25] 0 i := i + 1; VAL [i=1, i=2, x=1] [L22] COND FALSE 0 !(i < 2) VAL [i=1, i=2, x=1] [L38] 2 x := x + 1; VAL [i=1, i=2, x=2] [L41] 2 assert i == 0; VAL [i=2, i=1, x=2] - UnprovableResult [Line: 32]: Unable to prove that assertion always holds Unable to prove that assertion always holds Reason: Not analyzed. - UnprovableResult [Line: 24]: Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 22 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 26 NumberOfCodeBlocks, 26 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 21 ConstructedInterpolants, 0 QuantifiedInterpolants, 153 SizeOfPredicates, 1 NumberOfNonLiveVariables, 17 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 3 InterpolantComputations, 0 PerfectInterpolantSequences, 0/3 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 - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 27 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 0.6s, OverallIterations: 3, TraceHistogramMax: 0, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 10, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.2s InterpolantComputationTime, 44 NumberOfCodeBlocks, 44 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 34 ConstructedInterpolants, 0 QuantifiedInterpolants, 186 SizeOfPredicates, 1 NumberOfNonLiveVariables, 17 ConjunctsInSsa, 5 ConjunctsInUnsatCore, 4 InterpolantComputations, 1 PerfectInterpolantSequences, 5/8 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! [2022-03-01 22:51:03,649 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (4)] Ended with exit code 0 [2022-03-01 22:51:03,869 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2022-03-01 22:51:04,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...