/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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 01:41:57,689 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 01:41:57,691 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 01:41:57,749 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-25 01:41:57,808 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-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf [2021-10-25 01:41:57,821 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 01:41:57,821 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 01:41:57,822 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 01:41:57,822 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 01:41:57,822 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 01:41:57,822 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 01:41:57,823 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 01:41:57,823 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 01:41:57,823 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 01:41:57,823 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 01:41:57,823 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 01:41:57,823 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 01:41:57,823 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 01:41:57,823 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 01:41:57,823 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 01:41:57,823 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 01:41:57,823 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 01:41:57,824 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 01:41:57,824 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 01:41:57,824 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 01:41:57,824 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 01:41:57,824 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 01:41:57,824 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 01:41:57,824 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 01:41:57,824 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 01:41:57,824 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 01:41:57,824 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 01:41:57,824 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 01:41:57,825 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-10-25 01:41:57,825 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 01:41:57,825 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 01:41:57,825 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 01:41:57,825 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 01:41:57,825 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 01:41:57,825 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 01:41:57,825 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 01:41:57,825 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 01:41:57,989 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 01:41:58,012 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 01:41:58,014 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 01:41:58,015 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-25 01:41:58,019 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-25 01:41:58,020 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl [2021-10-25 01:41:58,020 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20-more/array-sum-alt.wvr.bpl' [2021-10-25 01:41:58,042 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 01:41:58,043 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-25 01:41:58,044 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 01:41:58,044 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 01:41:58,044 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 01:41:58,066 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:41:58" (1/1) ... [2021-10-25 01:41:58,075 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:41:58" (1/1) ... [2021-10-25 01:41:58,081 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 01:41:58,083 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 01:41:58,083 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 01:41:58,083 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 01:41:58,088 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:41:58" (1/1) ... [2021-10-25 01:41:58,089 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:41:58" (1/1) ... [2021-10-25 01:41:58,090 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:41:58" (1/1) ... [2021-10-25 01:41:58,090 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:41:58" (1/1) ... [2021-10-25 01:41:58,094 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:41:58" (1/1) ... [2021-10-25 01:41:58,098 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:41:58" (1/1) ... [2021-10-25 01:41:58,098 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:41:58" (1/1) ... [2021-10-25 01:41:58,100 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 01:41:58,101 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 01:41:58,101 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 01:41:58,101 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 01:41:58,102 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:41:58" (1/1) ... [2021-10-25 01:41:58,108 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 01:41:58,116 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:41:58,128 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) [2021-10-25 01:41:58,147 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 [2021-10-25 01:41:58,167 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-25 01:41:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-25 01:41:58,167 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-25 01:41:58,167 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-25 01:41:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-25 01:41:58,167 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-25 01:41:58,167 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-25 01:41:58,167 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 01:41:58,168 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 01:41:58,168 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-10-25 01:41:58,168 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-10-25 01:41:58,168 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-10-25 01:41:58,168 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 01:41:58,292 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 01:41:58,292 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-25 01:41:58,294 INFO L202 PluginConnector]: Adding new model array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:41:58 BoogieIcfgContainer [2021-10-25 01:41:58,294 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 01:41:58,295 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 01:41:58,295 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 01:41:58,297 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 01:41:58,297 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 01:41:58" (1/2) ... [2021-10-25 01:41:58,298 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@de8de2a and model type array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 01:41:58, skipping insertion in model container [2021-10-25 01:41:58,298 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 01:41:58" (2/2) ... [2021-10-25 01:41:58,298 INFO L111 eAbstractionObserver]: Analyzing ICFG array-sum-alt.wvr.bpl [2021-10-25 01:41:58,301 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 01:41:58,301 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 01:41:58,302 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 01:41:58,302 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 01:41:58,347 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-10-25 01:41:58,421 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 01:41:58,421 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:41:58,431 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) [2021-10-25 01:41:58,432 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 [2021-10-25 01:41:58,451 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 01:41:58,454 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, mConcurrency=PARTIAL_ORDER_FA, 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 [2021-10-25 01:41:58,455 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-10-25 01:41:58,552 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:41:58,555 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:41:58,555 INFO L82 PathProgramCache]: Analyzing trace with hash -126280981, now seen corresponding path program 1 times [2021-10-25 01:41:58,560 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:41:58,561 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1144551363] [2021-10-25 01:41:58,561 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:41:58,561 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:41:58,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:41:58,733 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 01:41:58,734 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:41:58,734 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1144551363] [2021-10-25 01:41:58,734 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1144551363] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:41:58,735 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1163462874] [2021-10-25 01:41:58,735 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:41:58,735 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:41:58,735 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:41:58,747 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) [2021-10-25 01:41:58,748 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-25 01:41:58,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:41:58,786 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 8 conjunts are in the unsatisfiable core [2021-10-25 01:41:58,789 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:41:59,015 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 4 proven. 5 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-25 01:41:59,015 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1163462874] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:41:59,015 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:41:59,015 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8, 7] total 10 [2021-10-25 01:41:59,017 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1857087038] [2021-10-25 01:41:59,021 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-10-25 01:41:59,021 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:41:59,033 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-10-25 01:41:59,034 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2021-10-25 01:41:59,034 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:41:59,035 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:41:59,036 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 4.1) internal successors, (41), 10 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) [2021-10-25 01:41:59,036 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:41:59,165 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:41:59,201 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-25 01:41:59,382 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 [2021-10-25 01:41:59,383 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:41:59,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:41:59,384 INFO L82 PathProgramCache]: Analyzing trace with hash 2057804913, now seen corresponding path program 2 times [2021-10-25 01:41:59,384 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:41:59,384 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [692226365] [2021-10-25 01:41:59,384 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:41:59,384 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:41:59,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:41:59,485 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 7 proven. 7 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 01:41:59,486 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:41:59,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [692226365] [2021-10-25 01:41:59,486 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [692226365] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:41:59,486 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2010159472] [2021-10-25 01:41:59,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 01:41:59,486 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:41:59,487 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:41:59,504 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) [2021-10-25 01:41:59,505 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-25 01:41:59,554 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 01:41:59,554 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:41:59,555 INFO L263 TraceCheckSpWp]: Trace formula consists of 71 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-25 01:41:59,565 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:41:59,788 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 8 proven. 4 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-25 01:41:59,788 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2010159472] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:41:59,788 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:41:59,788 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 8] total 12 [2021-10-25 01:41:59,788 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [400712570] [2021-10-25 01:41:59,789 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2021-10-25 01:41:59,789 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:41:59,789 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-10-25 01:41:59,790 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-10-25 01:41:59,790 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:41:59,790 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:41:59,790 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 4.0) internal successors, (48), 12 states have internal predecessors, (48), 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) [2021-10-25 01:41:59,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:41:59,790 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:41:59,928 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:41:59,929 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-25 01:41:59,947 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-25 01:42:00,136 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 [2021-10-25 01:42:00,137 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:42:00,138 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:42:00,139 INFO L82 PathProgramCache]: Analyzing trace with hash 996979814, now seen corresponding path program 3 times [2021-10-25 01:42:00,139 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:42:00,139 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365173375] [2021-10-25 01:42:00,139 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:42:00,139 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:42:00,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:42:00,299 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 2 proven. 56 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-25 01:42:00,300 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:42:00,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365173375] [2021-10-25 01:42:00,300 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365173375] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:42:00,300 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1537773131] [2021-10-25 01:42:00,300 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 01:42:00,300 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:42:00,301 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:42:00,331 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) [2021-10-25 01:42:00,333 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-25 01:42:00,404 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 6 check-sat command(s) [2021-10-25 01:42:00,404 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:42:00,405 INFO L263 TraceCheckSpWp]: Trace formula consists of 101 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-25 01:42:00,406 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:42:00,730 INFO L134 CoverageAnalysis]: Checked inductivity of 62 backedges. 3 proven. 53 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-25 01:42:00,730 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1537773131] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:42:00,730 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:42:00,730 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 12] total 19 [2021-10-25 01:42:00,730 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247634057] [2021-10-25 01:42:00,731 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 19 states [2021-10-25 01:42:00,731 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:42:00,731 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 19 interpolants. [2021-10-25 01:42:00,732 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=69, Invalid=273, Unknown=0, NotChecked=0, Total=342 [2021-10-25 01:42:00,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:42:00,732 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:42:00,732 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 19 states, 19 states have (on average 4.052631578947368) internal successors, (77), 19 states have internal predecessors, (77), 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) [2021-10-25 01:42:00,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:42:00,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-25 01:42:00,732 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:42:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:42:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-25 01:42:01,193 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-25 01:42:01,218 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-25 01:42:01,394 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 [2021-10-25 01:42:01,394 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:42:01,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:42:01,395 INFO L82 PathProgramCache]: Analyzing trace with hash -766427224, now seen corresponding path program 4 times [2021-10-25 01:42:01,395 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:42:01,395 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [27201238] [2021-10-25 01:42:01,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:42:01,395 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:42:01,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:42:02,668 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 103 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2021-10-25 01:42:02,668 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:42:02,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [27201238] [2021-10-25 01:42:02,668 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [27201238] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:42:02,668 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [370271305] [2021-10-25 01:42:02,668 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-25 01:42:02,669 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:42:02,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:42:02,669 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) [2021-10-25 01:42:02,719 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-25 01:42:02,820 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-25 01:42:02,820 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:42:02,821 WARN L261 TraceCheckSpWp]: Trace formula consists of 116 conjuncts, 64 conjunts are in the unsatisfiable core [2021-10-25 01:42:02,823 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:42:05,379 INFO L354 Elim1Store]: treesize reduction 320, result has 3.9 percent of original size [2021-10-25 01:42:05,380 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 11 select indices, 11 select index equivalence classes, 21 disjoint index pairs (out of 55 index pairs), introduced 11 new quantified variables, introduced 34 case distinctions, treesize of input 61 treesize of output 39 [2021-10-25 01:42:05,474 INFO L134 CoverageAnalysis]: Checked inductivity of 104 backedges. 0 proven. 104 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 01:42:05,475 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [370271305] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:42:05,475 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:42:05,475 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 32] total 62 [2021-10-25 01:42:05,475 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1966019148] [2021-10-25 01:42:05,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 62 states [2021-10-25 01:42:05,476 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:42:05,476 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 62 interpolants. [2021-10-25 01:42:05,478 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=249, Invalid=3533, Unknown=0, NotChecked=0, Total=3782 [2021-10-25 01:42:05,478 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:42:05,478 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:42:05,478 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 62 states, 62 states have (on average 1.8064516129032258) internal successors, (112), 62 states have internal predecessors, (112), 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) [2021-10-25 01:42:05,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:42:05,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-25 01:42:05,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-25 01:42:05,478 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:42:13,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:42:13,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-25 01:42:13,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-25 01:42:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-10-25 01:42:13,929 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2021-10-25 01:42:14,123 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 [2021-10-25 01:42:14,124 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:42:14,128 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:42:14,135 INFO L82 PathProgramCache]: Analyzing trace with hash 102545670, now seen corresponding path program 5 times [2021-10-25 01:42:14,135 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:42:14,135 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [889628965] [2021-10-25 01:42:14,135 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:42:14,135 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:42:14,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:42:14,347 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 100 proven. 215 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-25 01:42:14,347 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:42:14,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [889628965] [2021-10-25 01:42:14,348 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [889628965] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:42:14,348 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [233449025] [2021-10-25 01:42:14,348 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-25 01:42:14,348 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:42:14,348 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:42:14,350 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) [2021-10-25 01:42:14,350 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-25 01:42:14,565 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 11 check-sat command(s) [2021-10-25 01:42:14,565 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:42:14,566 INFO L263 TraceCheckSpWp]: Trace formula consists of 171 conjuncts, 28 conjunts are in the unsatisfiable core [2021-10-25 01:42:14,568 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:42:15,272 INFO L134 CoverageAnalysis]: Checked inductivity of 319 backedges. 113 proven. 200 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2021-10-25 01:42:15,272 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [233449025] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:42:15,272 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 01:42:15,272 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 22] total 33 [2021-10-25 01:42:15,273 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2147480724] [2021-10-25 01:42:15,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 33 states [2021-10-25 01:42:15,273 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 01:42:15,273 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 33 interpolants. [2021-10-25 01:42:15,274 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=212, Invalid=844, Unknown=0, NotChecked=0, Total=1056 [2021-10-25 01:42:15,274 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:42:15,274 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 01:42:15,274 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 33 states, 33 states have (on average 4.696969696969697) internal successors, (155), 33 states have internal predecessors, (155), 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) [2021-10-25 01:42:15,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:42:15,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-25 01:42:15,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 34 states. [2021-10-25 01:42:15,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 92 states. [2021-10-25 01:42:15,274 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 01:42:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 01:42:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-25 01:42:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2021-10-25 01:42:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 92 states. [2021-10-25 01:42:15,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 45 states. [2021-10-25 01:42:16,015 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2021-10-25 01:42:16,212 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 [2021-10-25 01:42:16,212 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2021-10-25 01:42:16,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 01:42:16,212 INFO L82 PathProgramCache]: Analyzing trace with hash -1769351708, now seen corresponding path program 6 times [2021-10-25 01:42:16,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 01:42:16,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1962526822] [2021-10-25 01:42:16,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 01:42:16,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 01:42:16,268 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 01:42:19,963 INFO L134 CoverageAnalysis]: Checked inductivity of 640 backedges. 58 proven. 561 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2021-10-25 01:42:19,964 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 01:42:19,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1962526822] [2021-10-25 01:42:19,964 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1962526822] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 01:42:19,964 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1532925814] [2021-10-25 01:42:19,964 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-25 01:42:19,964 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:42:19,964 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 01:42:19,965 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 01:42:19,966 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-25 01:42:20,281 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 10 check-sat command(s) [2021-10-25 01:42:20,282 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 01:42:20,295 WARN L261 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 149 conjunts are in the unsatisfiable core [2021-10-25 01:42:20,297 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 01:42:31,871 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,872 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,873 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,874 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,875 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,876 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,877 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,878 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,879 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,881 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,882 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,883 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,884 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,885 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,886 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,887 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,889 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,891 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,892 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,894 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,895 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,897 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,898 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,899 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,901 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,902 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,904 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,906 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,907 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,909 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,916 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,918 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,919 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,920 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,922 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,928 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,929 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,931 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,933 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,936 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,937 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,938 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,940 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,945 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,946 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,948 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,951 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,953 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:31,956 INFO L190 IndexEqualityManager]: detected not equals via solver [2021-10-25 01:42:39,104 WARN L207 SmtUtils]: Spent 7.14 s on a formula simplification. DAG size of input: 1275 DAG size of output: 595 [2021-10-25 01:42:39,106 INFO L354 Elim1Store]: treesize reduction 2096, result has 35.4 percent of original size [2021-10-25 01:42:39,106 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 28 select indices, 28 select index equivalence classes, 76 disjoint index pairs (out of 378 index pairs), introduced 28 new quantified variables, introduced 302 case distinctions, treesize of input 161 treesize of output 1201 Received shutdown request... [2021-10-25 01:56:00,239 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-25 01:56:00,240 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-25 01:56:00,258 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-25 01:56:00,281 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-25 01:56:00,281 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-25 01:56:00,440 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 01:56:00,440 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 121 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. [2021-10-25 01:56:00,442 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-25 01:56:00,442 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-25 01:56:00,442 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION [2021-10-25 01:56:00,458 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-25 01:56:00,458 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-25 01:56:00,460 INFO L202 PluginConnector]: Adding new model array-sum-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 01:56:00 BasicIcfg [2021-10-25 01:56:00,460 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-25 01:56:00,460 INFO L168 Benchmark]: Toolchain (without parser) took 842417.27 ms. Allocated memory was 217.1 MB in the beginning and 662.7 MB in the end (delta: 445.6 MB). Free memory was 177.1 MB in the beginning and 517.2 MB in the end (delta: -340.1 MB). Peak memory consumption was 419.0 MB. Max. memory is 8.0 GB. [2021-10-25 01:56:00,461 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.09 ms. Allocated memory is still 217.1 MB. Free memory was 178.3 MB in the beginning and 178.2 MB in the end (delta: 64.0 kB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 01:56:00,461 INFO L168 Benchmark]: Boogie Procedure Inliner took 37.71 ms. Allocated memory is still 217.1 MB. Free memory was 177.1 MB in the beginning and 175.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 01:56:00,461 INFO L168 Benchmark]: Boogie Preprocessor took 17.43 ms. Allocated memory is still 217.1 MB. Free memory was 175.6 MB in the beginning and 174.6 MB in the end (delta: 955.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. [2021-10-25 01:56:00,461 INFO L168 Benchmark]: RCFGBuilder took 192.76 ms. Allocated memory is still 217.1 MB. Free memory was 174.5 MB in the beginning and 163.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-25 01:56:00,462 INFO L168 Benchmark]: TraceAbstraction took 842164.95 ms. Allocated memory was 217.1 MB in the beginning and 662.7 MB in the end (delta: 445.6 MB). Free memory was 162.6 MB in the beginning and 517.2 MB in the end (delta: -354.6 MB). Peak memory consumption was 404.3 MB. Max. memory is 8.0 GB. [2021-10-25 01:56:00,463 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 0.09 ms. Allocated memory is still 217.1 MB. Free memory was 178.3 MB in the beginning and 178.2 MB in the end (delta: 64.0 kB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 37.71 ms. Allocated memory is still 217.1 MB. Free memory was 177.1 MB in the beginning and 175.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 8.0 GB. * Boogie Preprocessor took 17.43 ms. Allocated memory is still 217.1 MB. Free memory was 175.6 MB in the beginning and 174.6 MB in the end (delta: 955.8 kB). Peak memory consumption was 2.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 192.76 ms. Allocated memory is still 217.1 MB. Free memory was 174.5 MB in the beginning and 163.1 MB in the end (delta: 11.4 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 842164.95 ms. Allocated memory was 217.1 MB in the beginning and 662.7 MB in the end (delta: 445.6 MB). Free memory was 162.6 MB in the beginning and 517.2 MB in the end (delta: -354.6 MB). Peak memory consumption was 404.3 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2071, positive: 1778, positive conditional: 1328, positive unconditional: 450, negative: 293, negative conditional: 293, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1778, positive: 1778, positive conditional: 0, positive unconditional: 1778, 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: 353, positive: 353, positive conditional: 0, positive unconditional: 353, 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: 353, positive: 351, positive conditional: 0, positive unconditional: 351, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1778, positive: 1425, positive conditional: 0, positive unconditional: 1425, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 353, unknown conditional: 0, unknown unconditional: 353] , Statistics on independence cache: Total cache size (in pairs): 353, Positive cache size: 353, Positive conditional cache size: 0, Positive unconditional cache size: 353, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 293 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 65, Number of persistent set computation: 59, Number of trivial persistent sets: 20, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 2071, positive: 1778, positive conditional: 1328, positive unconditional: 450, negative: 293, negative conditional: 293, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 1778, positive: 1778, positive conditional: 0, positive unconditional: 1778, 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: 353, positive: 353, positive conditional: 0, positive unconditional: 353, 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: 353, positive: 351, positive conditional: 0, positive unconditional: 351, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 2, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 36, positive: 36, positive conditional: 0, positive unconditional: 36, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 1778, positive: 1425, positive conditional: 0, positive unconditional: 1425, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 353, unknown conditional: 0, unknown unconditional: 353] , Statistics on independence cache: Total cache size (in pairs): 353, Positive cache size: 353, Positive conditional cache size: 0, Positive unconditional cache size: 353, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Independence queries for same thread: 293 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 59]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 121 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - TimeoutResultAtElement [Line: 53]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 121 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 121 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - TimeoutResultAtElement [Line: 52]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PartialOrderCegarLoop was analyzing trace of length 121 with TraceHistMax 17,while TraceCheckSpWp was constructing forward predicates,while QuantifierPusher was running 1 iterations of DualJunctionQuantifierElimination. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 7 procedures, 48 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 842037.9ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 9.5ms, PartialOrderReductionTime: 9971.5ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 194, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 35.0ms SsaConstructionTime, 189.6ms SatisfiabilityAnalysisTime, 5899.2ms InterpolantComputationTime, 540 NumberOfCodeBlocks, 540 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 530 ConstructedInterpolants, 10 QuantifiedInterpolants, 6256 SizeOfPredicates, 19 NumberOfNonLiveVariables, 530 ConjunctsInSsa, 123 ConjunctsInUnsatCore, 10 InterpolantComputations, 0 PerfectInterpolantSequences, 267/1020 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 could not prove your program: Timeout Completed graceful shutdown