/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/weaver-benchmarks/generated/parallel/misc-2-unrolled-atomic.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-01 23:18:12,928 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-01 23:18:12,929 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-01 23:18:12,963 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-01 23:18:12,968 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-01 23:18:12,971 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-01 23:18:12,973 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-01 23:18:12,977 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-01 23:18:12,978 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-01 23:18:12,979 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-01 23:18:12,979 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-01 23:18:12,980 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-01 23:18:12,980 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-01 23:18:12,981 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-01 23:18:12,981 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-01 23:18:12,982 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-01 23:18:12,982 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-01 23:18:12,983 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-01 23:18:12,984 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-01 23:18:12,985 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-01 23:18:12,986 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-01 23:18:13,003 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-01 23:18:13,003 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-01 23:18:13,004 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-01 23:18:13,006 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-03-01 23:18:13,012 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 23:18:13,025 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-01 23:18:13,025 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-01 23:18:13,025 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-01 23:18:13,025 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-01 23:18:13,026 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-01 23:18:13,026 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-01 23:18:13,026 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-01 23:18:13,026 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-01 23:18:13,026 INFO L138 SettingsManager]: * Use SBE=true [2022-03-01 23:18:13,026 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-01 23:18:13,026 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-01 23:18:13,026 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-01 23:18:13,027 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-01 23:18:13,027 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-01 23:18:13,027 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-01 23:18:13,027 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-01 23:18:13,027 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-01 23:18:13,027 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-01 23:18:13,027 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-01 23:18:13,027 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-01 23:18:13,027 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-01 23:18:13,027 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-01 23:18:13,027 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-01 23:18:13,028 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-01 23:18:13,028 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-01 23:18:13,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 23:18:13,028 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-01 23:18:13,028 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-01 23:18:13,028 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-01 23:18:13,028 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-01 23:18:13,028 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-01 23:18:13,028 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-01 23:18:13,028 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-01 23:18:13,028 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-01 23:18:13,028 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-01 23:18:13,029 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-01 23:18:13,029 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-01 23:18:13,029 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-01 23:18:13,029 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-01 23:18:13,200 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-01 23:18:13,220 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-01 23:18:13,221 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-01 23:18:13,222 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-01 23:18:13,223 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-01 23:18:13,224 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled-atomic.wvr.bpl [2022-03-01 23:18:13,224 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/misc-2-unrolled-atomic.wvr.bpl' [2022-03-01 23:18:13,241 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-01 23:18:13,242 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-01 23:18:13,243 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-01 23:18:13,243 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-01 23:18:13,243 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-01 23:18:13,251 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:18:13" (1/1) ... [2022-03-01 23:18:13,255 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:18:13" (1/1) ... [2022-03-01 23:18:13,260 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-01 23:18:13,261 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-01 23:18:13,262 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-01 23:18:13,262 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-01 23:18:13,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-01 23:18:13,267 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:18:13" (1/1) ... [2022-03-01 23:18:13,267 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:18:13" (1/1) ... [2022-03-01 23:18:13,267 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:18:13" (1/1) ... [2022-03-01 23:18:13,268 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:18:13" (1/1) ... [2022-03-01 23:18:13,269 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:18:13" (1/1) ... [2022-03-01 23:18:13,271 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:18:13" (1/1) ... [2022-03-01 23:18:13,271 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:18:13" (1/1) ... [2022-03-01 23:18:13,272 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-01 23:18:13,273 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-01 23:18:13,273 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-01 23:18:13,273 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-01 23:18:13,273 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:18:13" (1/1) ... [2022-03-01 23:18:13,278 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-01 23:18:13,283 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:18:13,296 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 23:18:13,333 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 23:18:13,341 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-01 23:18:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-01 23:18:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-01 23:18:13,341 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-01 23:18:13,341 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-01 23:18:13,341 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-01 23:18:13,342 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-01 23:18:13,342 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-01 23:18:13,342 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-01 23:18:13,343 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 23:18:13,373 INFO L234 CfgBuilder]: Building ICFG [2022-03-01 23:18:13,374 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-01 23:18:13,458 INFO L275 CfgBuilder]: Performing block encoding [2022-03-01 23:18:13,497 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-01 23:18:13,497 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-01 23:18:13,500 INFO L202 PluginConnector]: Adding new model misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 11:18:13 BoogieIcfgContainer [2022-03-01 23:18:13,500 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-01 23:18:13,502 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-01 23:18:13,502 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-01 23:18:13,504 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-01 23:18:13,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 01.03 11:18:13" (1/2) ... [2022-03-01 23:18:13,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6b48e2c6 and model type misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 01.03 11:18:13, skipping insertion in model container [2022-03-01 23:18:13,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 01.03 11:18:13" (2/2) ... [2022-03-01 23:18:13,506 INFO L111 eAbstractionObserver]: Analyzing ICFG misc-2-unrolled-atomic.wvr.bpl [2022-03-01 23:18:13,509 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-01 23:18:13,509 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-01 23:18:13,509 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-01 23:18:13,509 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-01 23:18:13,547 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-01 23:18:13,580 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-01 23:18:13,580 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:18:13,581 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 23:18:13,583 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 23:18:13,608 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-01 23:18:13,614 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 23:18:13,615 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-01 23:18:13,715 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 74 transitions and produced 67 states. [2022-03-01 23:18:13,716 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 23:18:13,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:18:13,720 INFO L85 PathProgramCache]: Analyzing trace with hash -705665474, now seen corresponding path program 1 times [2022-03-01 23:18:13,726 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:18:13,726 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [377741697] [2022-03-01 23:18:13,726 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:18:13,726 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:18:13,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:18:13,898 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 23:18:13,898 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:18:13,898 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [377741697] [2022-03-01 23:18:13,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [377741697] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:18:13,899 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [224916042] [2022-03-01 23:18:13,899 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:18:13,899 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:18:13,899 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:18:13,901 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 23:18:13,901 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 23:18:13,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:18:13,934 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 11 conjunts are in the unsatisfiable core [2022-03-01 23:18:13,938 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:18:14,039 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 23:18:14,039 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:18:14,336 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 14 proven. 18 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 23:18:14,337 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [224916042] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:18:14,337 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:18:14,337 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 8, 8] total 13 [2022-03-01 23:18:14,339 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [492962417] [2022-03-01 23:18:14,339 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:18:14,342 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2022-03-01 23:18:14,342 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:18:14,354 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2022-03-01 23:18:14,356 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=123, Unknown=0, NotChecked=0, Total=182 [2022-03-01 23:18:14,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:18:14,357 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:18:14,358 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 3.0714285714285716) internal successors, (43), 13 states have internal predecessors, (43), 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 23:18:14,358 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:18:14,537 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 77 transitions and produced 71 states. [2022-03-01 23:18:14,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 23:18:14,556 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-03-01 23:18:14,751 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 23:18:14,752 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 23:18:14,752 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:18:14,753 INFO L85 PathProgramCache]: Analyzing trace with hash 1602574084, now seen corresponding path program 2 times [2022-03-01 23:18:14,753 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:18:14,753 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1958078416] [2022-03-01 23:18:14,753 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:18:14,753 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:18:14,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:18:14,921 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:18:14,922 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:18:14,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1958078416] [2022-03-01 23:18:14,922 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1958078416] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:18:14,922 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [967616646] [2022-03-01 23:18:14,922 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-01 23:18:14,922 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:18:14,922 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:18:14,924 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 23:18:14,926 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-01 23:18:14,956 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-01 23:18:14,956 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:18:14,957 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 12 conjunts are in the unsatisfiable core [2022-03-01 23:18:14,959 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:18:15,036 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:18:15,036 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:18:15,198 INFO L134 CoverageAnalysis]: Checked inductivity of 41 backedges. 25 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:18:15,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [967616646] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:18:15,199 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:18:15,199 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11, 11] total 16 [2022-03-01 23:18:15,200 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [741043519] [2022-03-01 23:18:15,200 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:18:15,201 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 17 states [2022-03-01 23:18:15,201 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:18:15,202 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 17 interpolants. [2022-03-01 23:18:15,203 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=86, Invalid=186, Unknown=0, NotChecked=0, Total=272 [2022-03-01 23:18:15,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:18:15,204 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:18:15,204 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 17 states, 17 states have (on average 2.411764705882353) internal successors, (41), 16 states have internal predecessors, (41), 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 23:18:15,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-01 23:18:15,204 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:18:15,353 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 110 transitions and produced 96 states. [2022-03-01 23:18:15,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 23:18:15,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 23:18:15,372 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-03-01 23:18:15,569 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:18:15,569 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 23:18:15,570 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:18:15,570 INFO L85 PathProgramCache]: Analyzing trace with hash 951668810, now seen corresponding path program 3 times [2022-03-01 23:18:15,570 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:18:15,570 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [329789306] [2022-03-01 23:18:15,571 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:18:15,571 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:18:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:18:15,691 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 47 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 23:18:15,691 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:18:15,691 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [329789306] [2022-03-01 23:18:15,691 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [329789306] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:18:15,692 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [972553424] [2022-03-01 23:18:15,692 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-01 23:18:15,692 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:18:15,692 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:18:15,704 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 23:18:15,705 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 23:18:15,740 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 9 check-sat command(s) [2022-03-01 23:18:15,741 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:18:15,741 INFO L263 TraceCheckSpWp]: Trace formula consists of 96 conjuncts, 17 conjunts are in the unsatisfiable core [2022-03-01 23:18:15,743 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:18:15,819 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 47 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 23:18:15,820 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:18:16,022 INFO L134 CoverageAnalysis]: Checked inductivity of 100 backedges. 47 proven. 51 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 23:18:16,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [972553424] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:18:16,023 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:18:16,023 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 14, 14] total 22 [2022-03-01 23:18:16,023 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1580182884] [2022-03-01 23:18:16,023 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:18:16,023 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 23 states [2022-03-01 23:18:16,023 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:18:16,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 23 interpolants. [2022-03-01 23:18:16,024 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=155, Invalid=351, Unknown=0, NotChecked=0, Total=506 [2022-03-01 23:18:16,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:18:16,024 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:18:16,024 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 23 states, 23 states have (on average 2.652173913043478) internal successors, (61), 22 states have internal predecessors, (61), 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 23:18:16,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-01 23:18:16,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 23:18:16,024 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:18:16,271 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 113 transitions and produced 100 states. [2022-03-01 23:18:16,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 23:18:16,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 23:18:16,272 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 23:18:16,290 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 23:18:16,472 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 23:18:16,473 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 23:18:16,473 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:18:16,473 INFO L85 PathProgramCache]: Analyzing trace with hash 2071857936, now seen corresponding path program 4 times [2022-03-01 23:18:16,473 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:18:16,473 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1439720411] [2022-03-01 23:18:16,474 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:18:16,474 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:18:16,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:18:16,648 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:18:16,648 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:18:16,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1439720411] [2022-03-01 23:18:16,648 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1439720411] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:18:16,648 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2066658203] [2022-03-01 23:18:16,648 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-01 23:18:16,649 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:18:16,649 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:18:16,660 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 23:18:16,661 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-01 23:18:16,687 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-01 23:18:16,688 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:18:16,689 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 18 conjunts are in the unsatisfiable core [2022-03-01 23:18:16,690 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:18:16,767 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:18:16,767 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:18:16,955 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 64 proven. 49 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-01 23:18:16,955 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2066658203] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:18:16,956 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:18:16,956 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 17, 17] total 25 [2022-03-01 23:18:16,956 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1794143800] [2022-03-01 23:18:16,956 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:18:16,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2022-03-01 23:18:16,956 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:18:16,957 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2022-03-01 23:18:16,957 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=197, Invalid=453, Unknown=0, NotChecked=0, Total=650 [2022-03-01 23:18:16,957 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:18:16,957 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:18:16,957 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.269230769230769) internal successors, (59), 25 states have internal predecessors, (59), 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 23:18:16,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-01 23:18:16,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 23:18:16,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-03-01 23:18:16,958 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:18:17,155 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 146 transitions and produced 125 states. [2022-03-01 23:18:17,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 23:18:17,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 23:18:17,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 23:18:17,156 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 23:18:17,179 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-03-01 23:18:17,372 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:18:17,373 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 23:18:17,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:18:17,375 INFO L85 PathProgramCache]: Analyzing trace with hash 376105046, now seen corresponding path program 5 times [2022-03-01 23:18:17,375 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:18:17,375 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1520981095] [2022-03-01 23:18:17,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:18:17,375 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:18:17,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:18:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 98 proven. 102 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2022-03-01 23:18:17,561 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:18:17,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1520981095] [2022-03-01 23:18:17,561 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1520981095] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-01 23:18:17,561 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1494332144] [2022-03-01 23:18:17,561 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-01 23:18:17,561 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:18:17,561 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-01 23:18:17,563 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-01 23:18:17,570 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-01 23:18:17,598 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 12 check-sat command(s) [2022-03-01 23:18:17,599 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-01 23:18:17,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 126 conjuncts, 22 conjunts are in the unsatisfiable core [2022-03-01 23:18:17,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-01 23:18:17,701 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 79 proven. 119 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-01 23:18:17,702 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-01 23:18:17,948 INFO L134 CoverageAnalysis]: Checked inductivity of 202 backedges. 79 proven. 119 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2022-03-01 23:18:17,948 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1494332144] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-01 23:18:17,948 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-01 23:18:17,948 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20, 19, 19] total 30 [2022-03-01 23:18:17,948 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1052926734] [2022-03-01 23:18:17,949 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-01 23:18:17,949 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 31 states [2022-03-01 23:18:17,949 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:18:17,949 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 31 interpolants. [2022-03-01 23:18:17,950 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=275, Invalid=655, Unknown=0, NotChecked=0, Total=930 [2022-03-01 23:18:17,950 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:18:17,950 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:18:17,950 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 31 states, 31 states have (on average 2.5806451612903225) internal successors, (80), 30 states have internal predecessors, (80), 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 23:18:17,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-01 23:18:17,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 23:18:17,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-03-01 23:18:17,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-03-01 23:18:17,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:18:18,363 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 144 transitions and produced 124 states. [2022-03-01 23:18:18,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2022-03-01 23:18:18,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 23:18:18,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 23:18:18,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 23:18:18,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 23 states. [2022-03-01 23:18:18,395 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-01 23:18:18,574 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-01 23:18:18,574 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-01 23:18:18,575 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-01 23:18:18,575 INFO L85 PathProgramCache]: Analyzing trace with hash -43031782, now seen corresponding path program 6 times [2022-03-01 23:18:18,575 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-01 23:18:18,575 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [612130771] [2022-03-01 23:18:18,575 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-01 23:18:18,575 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-01 23:18:18,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-01 23:18:18,673 INFO L134 CoverageAnalysis]: Checked inductivity of 200 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 200 trivial. 0 not checked. [2022-03-01 23:18:18,673 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-01 23:18:18,673 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [612130771] [2022-03-01 23:18:18,673 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [612130771] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-01 23:18:18,673 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-01 23:18:18,673 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2022-03-01 23:18:18,673 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425106488] [2022-03-01 23:18:18,673 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-01 23:18:18,674 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-03-01 23:18:18,674 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-01 23:18:18,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-03-01 23:18:18,674 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-03-01 23:18:18,674 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:18:18,674 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-01 23:18:18,674 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 5.0) internal successors, (15), 2 states have internal predecessors, (15), 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 23:18:18,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2022-03-01 23:18:18,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-01 23:18:18,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2022-03-01 23:18:18,674 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 26 states. [2022-03-01 23:18:18,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 23 states. [2022-03-01 23:18:18,675 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-01 23:18:23,431 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 49308 transitions and produced 21054 states. [2022-03-01 23:18:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2022-03-01 23:18:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-01 23:18:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 23:18:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 26 states. [2022-03-01 23:18:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2022-03-01 23:18:23,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-03-01 23:18:23,434 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-01 23:18:23,434 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-01 23:18:23,435 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-01 23:18:23,435 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-03-01 23:18:23,439 INFO L732 BasicCegarLoop]: Path program histogram: [6] [2022-03-01 23:18:23,440 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-01 23:18:23,440 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-01 23:18:23,442 INFO L202 PluginConnector]: Adding new model misc-2-unrolled-atomic.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 01.03 11:18:23 BasicIcfg [2022-03-01 23:18:23,442 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-01 23:18:23,443 INFO L158 Benchmark]: Toolchain (without parser) took 10200.56ms. Allocated memory was 243.3MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 203.3MB in the beginning and 1.0GB in the end (delta: -839.3MB). Peak memory consumption was 671.0MB. Max. memory is 8.0GB. [2022-03-01 23:18:23,443 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.12ms. Allocated memory is still 243.3MB. Free memory is still 204.4MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-01 23:18:23,443 INFO L158 Benchmark]: Boogie Procedure Inliner took 18.35ms. Allocated memory is still 243.3MB. Free memory was 203.2MB in the beginning and 201.7MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-01 23:18:23,443 INFO L158 Benchmark]: Boogie Preprocessor took 10.24ms. Allocated memory is still 243.3MB. Free memory was 201.7MB in the beginning and 200.7MB in the end (delta: 910.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-01 23:18:23,444 INFO L158 Benchmark]: RCFGBuilder took 227.86ms. Allocated memory is still 243.3MB. Free memory was 200.6MB in the beginning and 191.1MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-03-01 23:18:23,444 INFO L158 Benchmark]: TraceAbstraction took 9940.06ms. Allocated memory was 243.3MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 190.6MB in the beginning and 1.0GB in the end (delta: -852.0MB). Peak memory consumption was 657.4MB. Max. memory is 8.0GB. [2022-03-01 23:18:23,445 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 0.12ms. Allocated memory is still 243.3MB. Free memory is still 204.4MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 18.35ms. Allocated memory is still 243.3MB. Free memory was 203.2MB in the beginning and 201.7MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 10.24ms. Allocated memory is still 243.3MB. Free memory was 201.7MB in the beginning and 200.7MB in the end (delta: 910.7kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 227.86ms. Allocated memory is still 243.3MB. Free memory was 200.6MB in the beginning and 191.1MB in the end (delta: 9.5MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 9940.06ms. Allocated memory was 243.3MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 190.6MB in the beginning and 1.0GB in the end (delta: -852.0MB). Peak memory consumption was 657.4MB. 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 - PositiveResult [Line: 49]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 28 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 9.9s, OverallIterations: 6, TraceHistogramMax: 0, PathProgramHistogramMax: 6, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 6.0s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 127, 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, 0.2s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 425 NumberOfCodeBlocks, 425 NumberOfCodeBlocksAsserted, 31 NumberOfCheckSat, 596 ConstructedInterpolants, 0 QuantifiedInterpolants, 3876 SizeOfPredicates, 15 NumberOfNonLiveVariables, 460 ConjunctsInSsa, 80 ConjunctsInUnsatCore, 16 InterpolantComputations, 1 PerfectInterpolantSequences, 928/1670 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2022-03-01 23:18:23,465 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 23:18:23,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Ended with exit code 0 Received shutdown request...