/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-comm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-29 07:04:05,808 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-29 07:04:05,809 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-29 07:04:05,873 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-29 07:04:05,883 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-01-29 07:04:05,884 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-01-29 07:04:05,884 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-01-29 07:04:05,885 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-01-29 07:04:05,885 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-01-29 07:04:05,886 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-01-29 07:04:05,887 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-01-29 07:04:05,888 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-01-29 07:04:05,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-01-29 07:04:05,898 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-01-29 07:04:05,899 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-01-29 07:04:05,900 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-01-29 07:04:05,902 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-01-29 07:04:05,908 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-01-29 07:04:05,908 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-01-29 07:04:05,909 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-01-29 07:04:05,914 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.epf [2022-01-29 07:04:05,938 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-29 07:04:05,938 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-29 07:04:05,939 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-29 07:04:05,939 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-29 07:04:05,940 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-29 07:04:05,940 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-29 07:04:05,940 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-29 07:04:05,940 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-29 07:04:05,940 INFO L138 SettingsManager]: * Use SBE=true [2022-01-29 07:04:05,941 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-29 07:04:05,941 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-29 07:04:05,942 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-29 07:04:05,942 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-29 07:04:05,942 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-29 07:04:05,942 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-29 07:04:05,942 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-29 07:04:05,942 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-29 07:04:05,942 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-29 07:04:05,942 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-29 07:04:05,942 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-29 07:04:05,942 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-29 07:04:05,942 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-29 07:04:05,943 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-29 07:04:05,943 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-29 07:04:05,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-29 07:04:05,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 07:04:05,944 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-29 07:04:05,944 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-29 07:04:05,944 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-29 07:04:05,944 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-29 07:04:05,944 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-29 07:04:05,945 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-29 07:04:05,945 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-01-29 07:04:05,945 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-29 07:04:05,945 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-01-29 07:04:05,945 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-29 07:04:06,112 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-29 07:04:06,129 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-29 07:04:06,131 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-29 07:04:06,132 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-29 07:04:06,134 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-29 07:04:06,134 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-comm.wvr.bpl [2022-01-29 07:04:06,135 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-comm.wvr.bpl' [2022-01-29 07:04:06,159 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-29 07:04:06,160 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-29 07:04:06,162 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-29 07:04:06,162 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-29 07:04:06,162 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-29 07:04:06,170 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,177 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,181 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-29 07:04:06,182 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-29 07:04:06,183 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-29 07:04:06,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-29 07:04:06,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-29 07:04:06,188 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,188 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,189 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,189 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,192 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,194 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,195 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,195 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-29 07:04:06,196 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-29 07:04:06,196 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-29 07:04:06,196 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-29 07:04:06,197 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/1) ... [2022-01-29 07:04:06,203 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 07:04:06,208 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:04:06,233 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-01-29 07:04:06,235 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-01-29 07:04:06,260 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-01-29 07:04:06,260 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-01-29 07:04:06,260 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-01-29 07:04:06,261 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-01-29 07:04:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-01-29 07:04:06,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-01-29 07:04:06,261 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-29 07:04:06,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-29 07:04:06,261 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-29 07:04:06,261 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-29 07:04:06,299 INFO L234 CfgBuilder]: Building ICFG [2022-01-29 07:04:06,301 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-29 07:04:06,364 INFO L275 CfgBuilder]: Performing block encoding [2022-01-29 07:04:06,372 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-29 07:04:06,372 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-29 07:04:06,373 INFO L202 PluginConnector]: Adding new model mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 07:04:06 BoogieIcfgContainer [2022-01-29 07:04:06,374 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-29 07:04:06,375 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-29 07:04:06,375 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-29 07:04:06,377 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-29 07:04:06,377 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:04:06" (1/2) ... [2022-01-29 07:04:06,378 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6d3e27e8 and model type mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 07:04:06, skipping insertion in model container [2022-01-29 07:04:06,378 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 07:04:06" (2/2) ... [2022-01-29 07:04:06,379 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-comm.wvr.bpl [2022-01-29 07:04:06,382 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-29 07:04:06,382 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-29 07:04:06,382 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-29 07:04:06,382 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-29 07:04:06,398 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-01-29 07:04:06,448 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 07:04:06,449 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:04:06,450 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) [2022-01-29 07:04:06,512 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 [2022-01-29 07:04:06,556 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-29 07:04:06,568 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, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-01-29 07:04:06,568 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-01-29 07:04:06,636 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 07:04:06,642 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:04:06,642 INFO L85 PathProgramCache]: Analyzing trace with hash -1663744164, now seen corresponding path program 1 times [2022-01-29 07:04:06,648 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:04:06,649 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31431354] [2022-01-29 07:04:06,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:04:06,649 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:04:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:04:07,354 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:04:07,355 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:04:07,355 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31431354] [2022-01-29 07:04:07,356 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31431354] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:04:07,356 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [534185169] [2022-01-29 07:04:07,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:04:07,356 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:04:07,356 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:04:07,358 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) [2022-01-29 07:04:07,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-01-29 07:04:07,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:04:07,396 WARN L261 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 51 conjunts are in the unsatisfiable core [2022-01-29 07:04:07,399 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:04:08,286 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 52 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:04:08,287 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:04:11,152 WARN L838 $PredicateComparison]: unable to prove that (forall ((b Int)) (or (< (+ 6 c_i_1) b) (let ((.cse0 (+ c_i_2 4))) (and (<= .cse0 (div (+ c_x_2 (* c_x_1 (- 1)) (* b 4)) 6)) (<= (div (+ c_x_1 (* b (- 4)) (* c_x_2 (- 1))) (- 6)) .cse0))) (<= b (+ 5 c_i_1)))) is different from false [2022-01-29 07:04:11,236 INFO L134 CoverageAnalysis]: Checked inductivity of 52 backedges. 0 proven. 45 refuted. 0 times theorem prover too weak. 0 trivial. 7 not checked. [2022-01-29 07:04:11,236 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [534185169] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:04:11,237 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:04:11,237 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 16, 16] total 44 [2022-01-29 07:04:11,238 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1532293421] [2022-01-29 07:04:11,239 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:04:11,242 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 45 states [2022-01-29 07:04:11,243 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:04:11,255 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 45 interpolants. [2022-01-29 07:04:11,258 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=208, Invalid=1687, Unknown=1, NotChecked=84, Total=1980 [2022-01-29 07:04:11,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:04:11,259 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:04:11,260 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 45 states, 45 states have (on average 1.8444444444444446) internal successors, (83), 44 states have internal predecessors, (83), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:04:11,260 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:04:14,688 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-29 07:04:14,720 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-01-29 07:04:14,889 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 [2022-01-29 07:04:14,890 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 07:04:14,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:04:14,890 INFO L85 PathProgramCache]: Analyzing trace with hash 1604505066, now seen corresponding path program 2 times [2022-01-29 07:04:14,890 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:04:14,890 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1940863951] [2022-01-29 07:04:14,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:04:14,891 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:04:14,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:04:15,469 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:04:15,470 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:04:15,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1940863951] [2022-01-29 07:04:15,470 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1940863951] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:04:15,470 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1705491177] [2022-01-29 07:04:15,470 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-01-29 07:04:15,470 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:04:15,470 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:04:15,471 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) [2022-01-29 07:04:15,479 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-01-29 07:04:15,511 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-01-29 07:04:15,511 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:04:15,512 WARN L261 TraceCheckSpWp]: Trace formula consists of 119 conjuncts, 79 conjunts are in the unsatisfiable core [2022-01-29 07:04:15,513 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:04:16,852 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:04:16,852 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:04:21,576 INFO L134 CoverageAnalysis]: Checked inductivity of 185 backedges. 0 proven. 185 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:04:21,576 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1705491177] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:04:21,576 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:04:21,577 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [23, 23, 23] total 65 [2022-01-29 07:04:21,577 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1247611104] [2022-01-29 07:04:21,577 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:04:21,578 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 66 states [2022-01-29 07:04:21,578 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:04:21,578 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 66 interpolants. [2022-01-29 07:04:21,579 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=419, Invalid=3870, Unknown=1, NotChecked=0, Total=4290 [2022-01-29 07:04:21,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:04:21,579 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:04:21,580 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 66 states, 66 states have (on average 1.893939393939394) internal successors, (125), 65 states have internal predecessors, (125), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:04:21,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-01-29 07:04:21,580 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:04:33,211 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-29 07:04:33,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-01-29 07:04:33,228 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-01-29 07:04:33,412 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 [2022-01-29 07:04:33,412 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 07:04:33,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:04:33,413 INFO L85 PathProgramCache]: Analyzing trace with hash -499381882, now seen corresponding path program 3 times [2022-01-29 07:04:33,413 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:04:33,413 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [777469622] [2022-01-29 07:04:33,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:04:33,413 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:04:33,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:04:34,433 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 0 proven. 745 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:04:34,433 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:04:34,433 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [777469622] [2022-01-29 07:04:34,433 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [777469622] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:04:34,434 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1140998872] [2022-01-29 07:04:34,434 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-01-29 07:04:34,434 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:04:34,434 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:04:34,487 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) [2022-01-29 07:04:34,489 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-01-29 07:04:34,546 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2022-01-29 07:04:34,546 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:04:34,548 WARN L261 TraceCheckSpWp]: Trace formula consists of 189 conjuncts, 135 conjunts are in the unsatisfiable core [2022-01-29 07:04:34,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:04:37,144 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 0 proven. 745 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:04:37,145 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:04:48,610 INFO L134 CoverageAnalysis]: Checked inductivity of 745 backedges. 0 proven. 745 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:04:48,610 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1140998872] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:04:48,610 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:04:48,611 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [37, 37, 37] total 107 [2022-01-29 07:04:48,611 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2001143804] [2022-01-29 07:04:48,611 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:04:48,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 108 states [2022-01-29 07:04:48,612 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:04:48,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 108 interpolants. [2022-01-29 07:04:48,615 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1133, Invalid=10420, Unknown=3, NotChecked=0, Total=11556 [2022-01-29 07:04:48,615 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:04:48,615 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:04:48,615 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 108 states, 108 states have (on average 1.9351851851851851) internal successors, (209), 107 states have internal predecessors, (209), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:04:48,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-01-29 07:04:48,615 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-01-29 07:04:48,616 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:05:33,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-29 07:05:33,704 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-01-29 07:05:33,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-01-29 07:05:33,741 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-01-29 07:05:33,933 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 [2022-01-29 07:05:33,933 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 07:05:33,934 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:05:33,934 INFO L85 PathProgramCache]: Analyzing trace with hash 1938799294, now seen corresponding path program 4 times [2022-01-29 07:05:33,934 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:05:33,934 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1609449317] [2022-01-29 07:05:33,934 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:05:33,934 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:05:34,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:05:36,464 INFO L134 CoverageAnalysis]: Checked inductivity of 3041 backedges. 0 proven. 3041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:05:36,464 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:05:36,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1609449317] [2022-01-29 07:05:36,464 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1609449317] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:05:36,464 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1590245923] [2022-01-29 07:05:36,465 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-01-29 07:05:36,465 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:05:36,465 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:05:36,466 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) [2022-01-29 07:05:36,466 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-01-29 07:05:36,547 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-01-29 07:05:36,547 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:05:36,551 WARN L261 TraceCheckSpWp]: Trace formula consists of 329 conjuncts, 247 conjunts are in the unsatisfiable core [2022-01-29 07:05:36,554 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:05:42,086 INFO L134 CoverageAnalysis]: Checked inductivity of 3041 backedges. 0 proven. 3041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:05:42,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:06:16,314 INFO L134 CoverageAnalysis]: Checked inductivity of 3041 backedges. 0 proven. 3041 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:06:16,314 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1590245923] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:06:16,314 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:06:16,315 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [65, 65, 65] total 191 [2022-01-29 07:06:16,315 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [510396718] [2022-01-29 07:06:16,315 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:06:16,315 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 192 states [2022-01-29 07:06:16,315 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:06:16,316 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 192 interpolants. [2022-01-29 07:06:16,322 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3737, Invalid=32932, Unknown=3, NotChecked=0, Total=36672 [2022-01-29 07:06:16,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:06:16,322 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:06:16,323 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 192 states, 192 states have (on average 1.9635416666666667) internal successors, (377), 191 states have internal predecessors, (377), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:06:16,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-01-29 07:06:16,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-01-29 07:06:16,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-01-29 07:06:16,323 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:10:32,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2022-01-29 07:10:32,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 127 states. [2022-01-29 07:10:32,059 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-01-29 07:10:32,064 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 547 states. [2022-01-29 07:10:32,081 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-01-29 07:10:32,269 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 [2022-01-29 07:10:32,269 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-01-29 07:10:32,270 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:10:32,270 INFO L85 PathProgramCache]: Analyzing trace with hash -507509458, now seen corresponding path program 5 times [2022-01-29 07:10:32,270 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:10:32,270 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558326656] [2022-01-29 07:10:32,270 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:10:32,270 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:10:32,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:10:40,366 INFO L134 CoverageAnalysis]: Checked inductivity of 12337 backedges. 0 proven. 12337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:10:40,366 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:10:40,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558326656] [2022-01-29 07:10:40,367 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558326656] provided 0 perfect and 1 imperfect interpolant sequences [2022-01-29 07:10:40,367 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [798539040] [2022-01-29 07:10:40,367 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-01-29 07:10:40,368 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-01-29 07:10:40,368 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:10:40,371 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) [2022-01-29 07:10:40,372 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-01-29 07:10:40,533 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 114 check-sat command(s) [2022-01-29 07:10:40,534 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-01-29 07:10:40,542 WARN L261 TraceCheckSpWp]: Trace formula consists of 609 conjuncts, 471 conjunts are in the unsatisfiable core [2022-01-29 07:10:40,547 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-01-29 07:11:02,613 INFO L134 CoverageAnalysis]: Checked inductivity of 12337 backedges. 0 proven. 12337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:11:02,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-01-29 07:12:30,833 INFO L134 CoverageAnalysis]: Checked inductivity of 12337 backedges. 0 proven. 12337 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:12:30,833 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [798539040] provided 0 perfect and 2 imperfect interpolant sequences [2022-01-29 07:12:30,834 INFO L186 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-01-29 07:12:30,834 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [121, 121, 121] total 359 [2022-01-29 07:12:30,834 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1274096761] [2022-01-29 07:12:30,834 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-01-29 07:12:30,835 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 360 states [2022-01-29 07:12:30,835 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:12:30,836 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 360 interpolants. [2022-01-29 07:12:30,844 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13649, Invalid=115583, Unknown=8, NotChecked=0, Total=129240 [2022-01-29 07:12:30,844 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:12:30,844 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:12:30,845 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 360 states, 360 states have (on average 1.9805555555555556) internal successors, (713), 359 states have internal predecessors, (713), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-01-29 07:12:30,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 57 states. [2022-01-29 07:12:30,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 127 states. [2022-01-29 07:12:30,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-01-29 07:12:30,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 547 states. [2022-01-29 07:12:30,845 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-01-29 07:18:42,311 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2022-01-29 07:18:42,315 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-01-29 07:18:42,326 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 [2022-01-29 07:18:42,327 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 [2022-01-29 07:18:42,492 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 [2022-01-29 07:18:42,493 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 811 known predicates. [2022-01-29 07:18:42,495 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-01-29 07:18:42,495 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-01-29 07:18:42,495 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-01-29 07:18:42,506 INFO L732 BasicCegarLoop]: Path program histogram: [5] [2022-01-29 07:18:42,507 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-29 07:18:42,507 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-29 07:18:42,509 INFO L202 PluginConnector]: Adding new model mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 07:18:42 BasicIcfg [2022-01-29 07:18:42,509 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-29 07:18:42,509 INFO L158 Benchmark]: Toolchain (without parser) took 876348.95ms. Allocated memory was 215.0MB in the beginning and 858.8MB in the end (delta: 643.8MB). Free memory was 176.8MB in the beginning and 283.5MB in the end (delta: -106.7MB). Peak memory consumption was 539.6MB. Max. memory is 8.0GB. [2022-01-29 07:18:42,510 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 215.0MB. Free memory is still 177.9MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-29 07:18:42,510 INFO L158 Benchmark]: Boogie Procedure Inliner took 20.77ms. Allocated memory is still 215.0MB. Free memory was 176.7MB in the beginning and 175.2MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-01-29 07:18:42,510 INFO L158 Benchmark]: Boogie Preprocessor took 12.30ms. Allocated memory is still 215.0MB. Free memory was 175.2MB in the beginning and 174.2MB in the end (delta: 947.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 07:18:42,510 INFO L158 Benchmark]: RCFGBuilder took 177.48ms. Allocated memory is still 215.0MB. Free memory was 174.2MB in the beginning and 165.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-29 07:18:42,511 INFO L158 Benchmark]: TraceAbstraction took 876134.24ms. Allocated memory was 215.0MB in the beginning and 858.8MB in the end (delta: 643.8MB). Free memory was 165.0MB in the beginning and 283.5MB in the end (delta: -118.5MB). Peak memory consumption was 525.9MB. Max. memory is 8.0GB. [2022-01-29 07:18:42,512 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * Boogie PL CUP Parser took 0.10ms. Allocated memory is still 215.0MB. Free memory is still 177.9MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 20.77ms. Allocated memory is still 215.0MB. Free memory was 176.7MB in the beginning and 175.2MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.30ms. Allocated memory is still 215.0MB. Free memory was 175.2MB in the beginning and 174.2MB in the end (delta: 947.0kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 177.48ms. Allocated memory is still 215.0MB. Free memory was 174.2MB in the beginning and 165.5MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 876134.24ms. Allocated memory was 215.0MB in the beginning and 858.8MB in the end (delta: 643.8MB). Free memory was 165.0MB in the beginning and 283.5MB in the end (delta: -118.5MB). Peak memory consumption was 525.9MB. 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 - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 811 known predicates. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 811 known predicates. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 811 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 28 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 876.1s, OverallIterations: 5, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 687.4s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 1452, 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: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 186.6s InterpolantComputationTime, 1038 NumberOfCodeBlocks, 1038 NumberOfCodeBlocksAsserted, 153 NumberOfCheckSat, 1542 ConstructedInterpolants, 20 QuantifiedInterpolants, 51243 SizeOfPredicates, 40 NumberOfNonLiveVariables, 1330 ConjunctsInSsa, 983 ConjunctsInUnsatCore, 15 InterpolantComputations, 0 PerfectInterpolantSequences, 0/49080 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