/usr/bin/java -Xmx16000000000 -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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/single_assertion_test.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-bc79526 [2022-01-18 03:50:21,943 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-18 03:50:21,952 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-18 03:50:21,998 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-18 03:50:22,036 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-FA-NoLbe.epf [2022-01-18 03:50:22,054 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-18 03:50:22,054 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-18 03:50:22,054 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-18 03:50:22,055 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-18 03:50:22,058 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-18 03:50:22,058 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-18 03:50:22,059 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-18 03:50:22,059 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-18 03:50:22,059 INFO L138 SettingsManager]: * Use SBE=true [2022-01-18 03:50:22,059 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-18 03:50:22,059 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-18 03:50:22,060 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-18 03:50:22,060 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-18 03:50:22,060 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-18 03:50:22,060 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-18 03:50:22,060 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-18 03:50:22,060 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-18 03:50:22,060 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-18 03:50:22,060 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-18 03:50:22,060 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-18 03:50:22,060 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-18 03:50:22,060 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-18 03:50:22,061 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-18 03:50:22,061 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-18 03:50:22,061 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-18 03:50:22,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 03:50:22,061 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-18 03:50:22,061 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-18 03:50:22,061 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-18 03:50:22,061 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-18 03:50:22,061 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-18 03:50:22,062 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-18 03:50:22,062 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-18 03:50:22,062 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-18 03:50:22,210 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-18 03:50:22,227 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-18 03:50:22,228 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-18 03:50:22,229 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-18 03:50:22,232 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-18 03:50:22,233 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/single_assertion_test.bpl [2022-01-18 03:50:22,233 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/single_assertion_test.bpl' [2022-01-18 03:50:22,251 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-18 03:50:22,252 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-18 03:50:22,253 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-18 03:50:22,253 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-18 03:50:22,253 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-18 03:50:22,262 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 18.01 03:50:22" (1/1) ... [2022-01-18 03:50:22,266 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 18.01 03:50:22" (1/1) ... [2022-01-18 03:50:22,272 INFO L137 Inliner]: procedures = 2, calls = 1, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-18 03:50:22,273 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-18 03:50:22,276 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-18 03:50:22,276 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-18 03:50:22,276 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-18 03:50:22,281 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:50:22" (1/1) ... [2022-01-18 03:50:22,281 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:50:22" (1/1) ... [2022-01-18 03:50:22,281 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:50:22" (1/1) ... [2022-01-18 03:50:22,281 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:50:22" (1/1) ... [2022-01-18 03:50:22,282 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:50:22" (1/1) ... [2022-01-18 03:50:22,284 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:50:22" (1/1) ... [2022-01-18 03:50:22,284 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:50:22" (1/1) ... [2022-01-18 03:50:22,285 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-18 03:50:22,286 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-18 03:50:22,286 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-18 03:50:22,286 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-18 03:50:22,286 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:50:22" (1/1) ... [2022-01-18 03:50:22,292 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-18 03:50:22,296 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-18 03:50:22,305 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) [2022-01-18 03:50:22,312 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 [2022-01-18 03:50:22,329 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-18 03:50:22,329 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-18 03:50:22,329 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-18 03:50:22,330 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread given in one single declaration [2022-01-18 03:50:22,330 INFO L130 BoogieDeclarations]: Found specification of procedure thread [2022-01-18 03:50:22,330 INFO L138 BoogieDeclarations]: Found implementation of procedure thread [2022-01-18 03:50:22,330 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-18 03:50:22,360 INFO L234 CfgBuilder]: Building ICFG [2022-01-18 03:50:22,361 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-18 03:50:22,406 INFO L275 CfgBuilder]: Performing block encoding [2022-01-18 03:50:22,410 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-18 03:50:22,410 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-18 03:50:22,412 INFO L202 PluginConnector]: Adding new model single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:50:22 BoogieIcfgContainer [2022-01-18 03:50:22,412 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-18 03:50:22,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-18 03:50:22,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-18 03:50:22,415 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-18 03:50:22,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 18.01 03:50:22" (1/2) ... [2022-01-18 03:50:22,417 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7f114812 and model type single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 18.01 03:50:22, skipping insertion in model container [2022-01-18 03:50:22,417 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 18.01 03:50:22" (2/2) ... [2022-01-18 03:50:22,418 INFO L111 eAbstractionObserver]: Analyzing ICFG single_assertion_test.bpl [2022-01-18 03:50:22,427 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-18 03:50:22,427 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-18 03:50:22,428 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 2 error locations. [2022-01-18 03:50:22,428 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-18 03:50:22,456 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:50:22,457 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:50:22,457 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:50:22,457 WARN L322 ript$VariableManager]: TermVariabe threadThread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:50:22,470 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-18 03:50:22,503 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 03:50:22,510 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=FINITE_AUTOMATA, 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 [2022-01-18 03:50:22,511 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-01-18 03:50:22,519 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 19 places, 16 transitions, 43 flow [2022-01-18 03:50:22,529 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 31 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 30 states have internal predecessors, (46), 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) [2022-01-18 03:50:22,531 INFO L276 IsEmpty]: Start isEmpty. Operand has 31 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 30 states have internal predecessors, (46), 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) [2022-01-18 03:50:22,534 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-18 03:50:22,534 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:50:22,535 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-18 03:50:22,535 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT] === [2022-01-18 03:50:22,539 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:50:22,540 INFO L85 PathProgramCache]: Analyzing trace with hash 1457027005, now seen corresponding path program 1 times [2022-01-18 03:50:22,545 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:50:22,546 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925300180] [2022-01-18 03:50:22,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:50:22,547 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:50:22,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:50:22,671 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:50:22,671 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:50:22,671 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925300180] [2022-01-18 03:50:22,672 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925300180] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:50:22,672 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:50:22,672 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 03:50:22,673 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [176849245] [2022-01-18 03:50:22,674 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:50:22,676 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 03:50:22,677 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:50:22,694 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 03:50:22,694 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 03:50:22,695 INFO L87 Difference]: Start difference. First operand has 31 states, 26 states have (on average 1.7692307692307692) internal successors, (46), 30 states have internal predecessors, (46), 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) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-01-18 03:50:22,727 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:50:22,728 INFO L93 Difference]: Finished difference Result 25 states and 36 transitions. [2022-01-18 03:50:22,728 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 03:50:22,729 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) Word has length 6 [2022-01-18 03:50:22,730 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:50:22,734 INFO L225 Difference]: With dead ends: 25 [2022-01-18 03:50:22,734 INFO L226 Difference]: Without dead ends: 20 [2022-01-18 03:50:22,735 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 03:50:22,738 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 12 mSDsluCounter, 7 mSDsCounter, 0 mSdLazyCounter, 11 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 12 SdHoareTripleChecker+Valid, 13 SdHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 11 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 03:50:22,739 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [12 Valid, 13 Invalid, 13 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 11 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 03:50:22,749 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20 states. [2022-01-18 03:50:22,756 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20 to 20. [2022-01-18 03:50:22,757 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20 states, 19 states have (on average 1.4736842105263157) internal successors, (28), 19 states have internal predecessors, (28), 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) [2022-01-18 03:50:22,757 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20 states to 20 states and 28 transitions. [2022-01-18 03:50:22,758 INFO L78 Accepts]: Start accepts. Automaton has 20 states and 28 transitions. Word has length 6 [2022-01-18 03:50:22,758 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:50:22,758 INFO L470 AbstractCegarLoop]: Abstraction has 20 states and 28 transitions. [2022-01-18 03:50:22,759 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-01-18 03:50:22,759 INFO L276 IsEmpty]: Start isEmpty. Operand 20 states and 28 transitions. [2022-01-18 03:50:22,759 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 8 [2022-01-18 03:50:22,759 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:50:22,759 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1] [2022-01-18 03:50:22,759 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-18 03:50:22,759 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0INUSE_VIOLATION === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT] === [2022-01-18 03:50:22,760 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:50:22,760 INFO L85 PathProgramCache]: Analyzing trace with hash -2076812177, now seen corresponding path program 1 times [2022-01-18 03:50:22,760 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:50:22,760 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [533570241] [2022-01-18 03:50:22,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:50:22,761 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:50:22,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 03:50:22,765 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 03:50:22,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 03:50:22,809 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 03:50:22,810 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 03:50:22,811 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 4 remaining) [2022-01-18 03:50:22,813 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 4 remaining) [2022-01-18 03:50:22,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONASSERT (1 of 4 remaining) [2022-01-18 03:50:22,814 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONASSERT (0 of 4 remaining) [2022-01-18 03:50:22,814 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-18 03:50:22,816 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-18 03:50:22,824 WARN L234 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2022-01-18 03:50:22,824 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2022-01-18 03:50:22,835 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:50:22,835 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:50:22,835 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:50:22,835 WARN L322 ript$VariableManager]: TermVariabe threadThread1of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:50:22,836 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:50:22,836 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:50:22,836 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:50:22,836 WARN L322 ript$VariableManager]: TermVariabe threadThread2of2ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-01-18 03:50:22,838 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-01-18 03:50:22,839 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-18 03:50:22,840 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=FINITE_AUTOMATA, 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 [2022-01-18 03:50:22,840 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-01-18 03:50:22,841 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 26 places, 23 transitions, 70 flow [2022-01-18 03:50:22,865 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 163 states, 152 states have (on average 2.388157894736842) internal successors, (363), 162 states have internal predecessors, (363), 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) [2022-01-18 03:50:22,866 INFO L276 IsEmpty]: Start isEmpty. Operand has 163 states, 152 states have (on average 2.388157894736842) internal successors, (363), 162 states have internal predecessors, (363), 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) [2022-01-18 03:50:22,866 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 7 [2022-01-18 03:50:22,866 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:50:22,866 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1] [2022-01-18 03:50:22,867 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting threadErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT (and 1 more)] === [2022-01-18 03:50:22,872 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:50:22,872 INFO L85 PathProgramCache]: Analyzing trace with hash 2137450337, now seen corresponding path program 1 times [2022-01-18 03:50:22,872 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:50:22,873 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2005677802] [2022-01-18 03:50:22,873 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:50:22,873 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:50:22,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-18 03:50:22,926 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-18 03:50:22,926 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-18 03:50:22,927 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2005677802] [2022-01-18 03:50:22,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2005677802] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-18 03:50:22,927 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-18 03:50:22,927 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-18 03:50:22,927 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2126601123] [2022-01-18 03:50:22,927 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-18 03:50:22,928 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-01-18 03:50:22,928 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-18 03:50:22,928 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-01-18 03:50:22,928 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-01-18 03:50:22,929 INFO L87 Difference]: Start difference. First operand has 163 states, 152 states have (on average 2.388157894736842) internal successors, (363), 162 states have internal predecessors, (363), 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) Second operand has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-01-18 03:50:22,980 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-01-18 03:50:22,980 INFO L93 Difference]: Finished difference Result 132 states and 287 transitions. [2022-01-18 03:50:22,981 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-01-18 03:50:22,982 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) Word has length 6 [2022-01-18 03:50:22,982 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-01-18 03:50:22,984 INFO L225 Difference]: With dead ends: 132 [2022-01-18 03:50:22,984 INFO L226 Difference]: Without dead ends: 127 [2022-01-18 03:50:22,984 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-01-18 03:50:22,985 INFO L933 BasicCegarLoop]: 12 mSDtfsCounter, 22 mSDsluCounter, 15 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 22 SdHoareTripleChecker+Valid, 23 SdHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-01-18 03:50:22,985 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [22 Valid, 23 Invalid, 21 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-01-18 03:50:22,986 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 127 states. [2022-01-18 03:50:22,999 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 127 to 127. [2022-01-18 03:50:23,011 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 127 states, 123 states have (on average 2.268292682926829) internal successors, (279), 126 states have internal predecessors, (279), 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) [2022-01-18 03:50:23,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 127 states to 127 states and 279 transitions. [2022-01-18 03:50:23,014 INFO L78 Accepts]: Start accepts. Automaton has 127 states and 279 transitions. Word has length 6 [2022-01-18 03:50:23,014 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-01-18 03:50:23,014 INFO L470 AbstractCegarLoop]: Abstraction has 127 states and 279 transitions. [2022-01-18 03:50:23,014 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 2.0) internal successors, (6), 4 states have internal predecessors, (6), 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) [2022-01-18 03:50:23,014 INFO L276 IsEmpty]: Start isEmpty. Operand 127 states and 279 transitions. [2022-01-18 03:50:23,015 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2022-01-18 03:50:23,015 INFO L506 BasicCegarLoop]: Found error trace [2022-01-18 03:50:23,015 INFO L514 BasicCegarLoop]: trace histogram [2, 1, 1, 1, 1, 1, 1, 1] [2022-01-18 03:50:23,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-18 03:50:23,015 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting threadErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, threadErr0ASSERT_VIOLATIONASSERT, threadErr0ASSERT_VIOLATIONASSERT (and 1 more)] === [2022-01-18 03:50:23,015 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-18 03:50:23,016 INFO L85 PathProgramCache]: Analyzing trace with hash -410833143, now seen corresponding path program 1 times [2022-01-18 03:50:23,016 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-18 03:50:23,016 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [644278997] [2022-01-18 03:50:23,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-18 03:50:23,016 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-18 03:50:23,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 03:50:23,033 INFO L352 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2022-01-18 03:50:23,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2022-01-18 03:50:23,038 INFO L133 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2022-01-18 03:50:23,038 INFO L628 BasicCegarLoop]: Counterexample is feasible [2022-01-18 03:50:23,038 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location threadErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-01-18 03:50:23,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 5 remaining) [2022-01-18 03:50:23,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 5 remaining) [2022-01-18 03:50:23,038 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONASSERT (1 of 5 remaining) [2022-01-18 03:50:23,039 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location threadErr0ASSERT_VIOLATIONASSERT (0 of 5 remaining) [2022-01-18 03:50:23,039 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-18 03:50:23,039 INFO L732 BasicCegarLoop]: Path program histogram: [1, 1] [2022-01-18 03:50:23,042 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 2 thread instances [2022-01-18 03:50:23,042 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-18 03:50:23,055 INFO L202 PluginConnector]: Adding new model single_assertion_test.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 18.01 03:50:23 BasicIcfg [2022-01-18 03:50:23,055 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-18 03:50:23,056 INFO L158 Benchmark]: Toolchain (without parser) took 803.46ms. Allocated memory was 352.3MB in the beginning and 444.6MB in the end (delta: 92.3MB). Free memory was 314.2MB in the beginning and 407.1MB in the end (delta: -92.9MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 03:50:23,056 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 352.3MB. Free memory is still 315.2MB. There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 03:50:23,056 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.03ms. Allocated memory is still 352.3MB. Free memory was 314.2MB in the beginning and 312.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 03:50:23,057 INFO L158 Benchmark]: Boogie Preprocessor took 9.76ms. Allocated memory is still 352.3MB. Free memory was 312.6MB in the beginning and 311.7MB in the end (delta: 896.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. [2022-01-18 03:50:23,057 INFO L158 Benchmark]: RCFGBuilder took 126.18ms. Allocated memory is still 352.3MB. Free memory was 311.7MB in the beginning and 303.7MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. [2022-01-18 03:50:23,057 INFO L158 Benchmark]: TraceAbstraction took 642.43ms. Allocated memory was 352.3MB in the beginning and 444.6MB in the end (delta: 92.3MB). Free memory was 303.2MB in the beginning and 407.1MB in the end (delta: -104.0MB). There was no memory consumed. Max. memory is 16.0GB. [2022-01-18 03:50:23,059 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 0.10ms. Allocated memory is still 352.3MB. Free memory is still 315.2MB. There was no memory consumed. Max. memory is 16.0GB. * Boogie Procedure Inliner took 20.03ms. Allocated memory is still 352.3MB. Free memory was 314.2MB in the beginning and 312.6MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * Boogie Preprocessor took 9.76ms. Allocated memory is still 352.3MB. Free memory was 312.6MB in the beginning and 311.7MB in the end (delta: 896.2kB). Peak memory consumption was 2.1MB. Max. memory is 16.0GB. * RCFGBuilder took 126.18ms. Allocated memory is still 352.3MB. Free memory was 311.7MB in the beginning and 303.7MB in the end (delta: 8.0MB). Peak memory consumption was 6.3MB. Max. memory is 16.0GB. * TraceAbstraction took 642.43ms. Allocated memory was 352.3MB in the beginning and 444.6MB in the end (delta: 92.3MB). Free memory was 303.2MB in the beginning and 407.1MB in the end (delta: -104.0MB). There was no memory consumed. Max. memory is 16.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - 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=0, i=1, x=0] [L24] FORK 0 fork i thread(i); VAL [i=1, i=1, x=0] [L38] 2 x := x + 1; VAL [i=1, i=1, x=1] [L41] 2 assert i == 0; VAL [i=1, i=1, x=1] - 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: 0.3s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 12 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 12 mSDsluCounter, 13 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 7 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 11 IncrementalHoareTripleChecker+Invalid, 13 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 7 mSDtfsCounter, 11 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=31occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 13 NumberOfCodeBlocks, 13 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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: 0.2s, OverallIterations: 2, TraceHistogramMax: 2, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 22 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 22 mSDsluCounter, 23 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 15 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 19 IncrementalHoareTripleChecker+Invalid, 21 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 12 mSDtfsCounter, 19 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=163occurred 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: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.0s InterpolantComputationTime, 15 NumberOfCodeBlocks, 15 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 5 ConstructedInterpolants, 0 QuantifiedInterpolants, 33 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 PerfectInterpolantSequences, 0/0 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! [2022-01-18 03:50:23,085 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...