/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-determinism.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 10:56:26,221 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 10:56:26,223 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 10:56:26,248 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-19 10:56:26,248 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-19 10:56:26,250 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-19 10:56:26,252 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-19 10:56:26,257 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-19 10:56:26,258 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-19 10:56:26,261 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-19 10:56:26,262 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-19 10:56:26,263 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-19 10:56:26,263 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 10:56:26,264 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 10:56:26,265 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 10:56:26,266 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 10:56:26,267 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 10:56:26,267 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 10:56:26,270 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 10:56:26,274 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 10:56:26,274 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 10:56:26,275 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 10:56:26,276 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 10:56:26,277 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 10:56:26,281 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-19 10:56:26,281 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-19 10:56:26,282 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-19 10:56:26,283 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-19 10:56:26,283 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-19 10:56:26,283 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-19 10:56:26,284 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-19 10:56:26,284 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-19 10:56:26,285 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-19 10:56:26,286 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-19 10:56:26,287 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-19 10:56:26,287 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-19 10:56:26,287 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-19 10:56:26,287 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-19 10:56:26,287 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 10:56:26,288 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 10:56:26,288 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 10:56:26,289 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-02-19 10:56:26,317 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 10:56:26,318 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 10:56:26,318 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 10:56:26,318 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 10:56:26,319 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 10:56:26,319 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 10:56:26,319 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 10:56:26,319 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 10:56:26,319 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 10:56:26,319 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 10:56:26,320 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 10:56:26,320 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 10:56:26,320 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 10:56:26,320 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 10:56:26,320 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 10:56:26,320 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 10:56:26,321 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 10:56:26,321 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 10:56:26,321 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 10:56:26,321 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 10:56:26,321 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 10:56:26,321 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 10:56:26,321 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 10:56:26,321 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 10:56:26,321 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 10:56:26,321 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 10:56:26,321 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 10:56:26,321 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 10:56:26,322 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 10:56:26,322 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 10:56:26,322 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 10:56:26,322 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 10:56:26,322 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 10:56:26,322 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 10:56:26,322 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 10:56:26,322 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 10:56:26,322 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 10:56:26,322 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-02-19 10:56:26,323 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 10:56:26,493 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 10:56:26,534 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 10:56:26,535 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 10:56:26,536 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 10:56:26,537 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 10:56:26,538 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-determinism.wvr.bpl [2022-02-19 10:56:26,538 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/counter-determinism.wvr.bpl' [2022-02-19 10:56:26,555 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 10:56:26,556 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 10:56:26,557 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 10:56:26,557 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 10:56:26,558 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 10:56:26,565 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:56:26" (1/1) ... [2022-02-19 10:56:26,569 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:56:26" (1/1) ... [2022-02-19 10:56:26,573 INFO L137 Inliner]: procedures = 5, calls = 4, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 10:56:26,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 10:56:26,576 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 10:56:26,576 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 10:56:26,576 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 10:56:26,581 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:56:26" (1/1) ... [2022-02-19 10:56:26,582 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:56:26" (1/1) ... [2022-02-19 10:56:26,583 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:56:26" (1/1) ... [2022-02-19 10:56:26,583 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:56:26" (1/1) ... [2022-02-19 10:56:26,587 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:56:26" (1/1) ... [2022-02-19 10:56:26,589 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:56:26" (1/1) ... [2022-02-19 10:56:26,590 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:56:26" (1/1) ... [2022-02-19 10:56:26,594 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 10:56:26,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 10:56:26,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 10:56:26,595 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 10:56:26,595 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:56:26" (1/1) ... [2022-02-19 10:56:26,600 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 10:56:26,608 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:56:26,617 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) [2022-02-19 10:56:26,633 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 [2022-02-19 10:56:26,644 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 10:56:26,644 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 10:56:26,644 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 10:56:26,644 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 10:56:26,644 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 10:56:26,644 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 10:56:26,644 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 10:56:26,645 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 10:56:26,645 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 10:56:26,645 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-02-19 10:56:26,645 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-02-19 10:56:26,645 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-02-19 10:56:26,646 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2022-02-19 10:56:26,648 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2022-02-19 10:56:26,648 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2022-02-19 10:56:26,649 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 10:56:26,683 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 10:56:26,684 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 10:56:26,757 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 10:56:26,770 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 10:56:26,771 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 10:56:26,772 INFO L202 PluginConnector]: Adding new model counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:56:26 BoogieIcfgContainer [2022-02-19 10:56:26,772 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 10:56:26,773 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 10:56:26,774 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 10:56:26,776 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 10:56:26,776 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:56:26" (1/2) ... [2022-02-19 10:56:26,776 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@35f3125b and model type counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:56:26, skipping insertion in model container [2022-02-19 10:56:26,777 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:56:26" (2/2) ... [2022-02-19 10:56:26,777 INFO L111 eAbstractionObserver]: Analyzing ICFG counter-determinism.wvr.bpl [2022-02-19 10:56:26,781 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 10:56:26,781 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 10:56:26,781 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 10:56:26,781 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 10:56:26,812 INFO L148 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2022-02-19 10:56:26,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 10:56:26,856 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:56:26,858 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) [2022-02-19 10:56:26,859 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 [2022-02-19 10:56:26,883 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 10:56:26,888 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-02-19 10:56:26,888 INFO L340 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2022-02-19 10:56:28,925 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 11438 transitions and produced 3240 states. [2022-02-19 10:56:28,927 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 10:56:28,931 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:56:28,931 INFO L85 PathProgramCache]: Analyzing trace with hash -45555039, now seen corresponding path program 1 times [2022-02-19 10:56:28,938 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:56:28,938 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2028949657] [2022-02-19 10:56:28,938 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:56:28,939 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:56:29,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:56:29,617 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 104 proven. 46 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2022-02-19 10:56:29,617 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:56:29,617 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2028949657] [2022-02-19 10:56:29,618 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2028949657] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:56:29,619 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [782576108] [2022-02-19 10:56:29,620 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:56:29,620 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:56:29,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:56:29,621 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) [2022-02-19 10:56:29,634 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 10:56:29,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:56:29,712 INFO L263 TraceCheckSpWp]: Trace formula consists of 206 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-19 10:56:29,717 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:56:30,320 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 8 proven. 81 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-02-19 10:56:30,321 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:56:30,816 INFO L134 CoverageAnalysis]: Checked inductivity of 178 backedges. 10 proven. 79 refuted. 0 times theorem prover too weak. 89 trivial. 0 not checked. [2022-02-19 10:56:30,817 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [782576108] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:56:30,817 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:56:30,817 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 49 [2022-02-19 10:56:30,819 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1314740868] [2022-02-19 10:56:30,819 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:56:30,826 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2022-02-19 10:56:30,826 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:56:30,843 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2022-02-19 10:56:30,846 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=356, Invalid=2094, Unknown=0, NotChecked=0, Total=2450 [2022-02-19 10:56:30,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:56:30,847 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:56:30,850 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.86) internal successors, (143), 49 states have internal predecessors, (143), 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) [2022-02-19 10:56:30,850 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:56:32,470 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 437 transitions and produced 389 states. [2022-02-19 10:56:32,471 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 10:56:32,487 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-19 10:56:32,671 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 [2022-02-19 10:56:32,672 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 10:56:32,672 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:56:32,672 INFO L85 PathProgramCache]: Analyzing trace with hash -628911181, now seen corresponding path program 2 times [2022-02-19 10:56:32,672 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:56:32,673 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1816926864] [2022-02-19 10:56:32,673 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:56:32,673 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:56:32,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:56:32,945 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 49 proven. 94 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-02-19 10:56:32,945 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:56:32,945 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1816926864] [2022-02-19 10:56:32,946 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1816926864] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:56:32,946 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1547218706] [2022-02-19 10:56:32,946 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 10:56:32,946 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:56:32,946 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:56:32,947 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) [2022-02-19 10:56:32,948 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 10:56:32,994 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 10:56:32,994 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:56:32,995 INFO L263 TraceCheckSpWp]: Trace formula consists of 224 conjuncts, 17 conjunts are in the unsatisfiable core [2022-02-19 10:56:32,998 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:56:33,532 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 49 proven. 94 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-02-19 10:56:33,533 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:56:33,957 INFO L134 CoverageAnalysis]: Checked inductivity of 217 backedges. 64 proven. 79 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2022-02-19 10:56:33,958 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1547218706] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:56:33,958 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:56:33,958 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [18, 17, 17] total 46 [2022-02-19 10:56:33,958 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69891268] [2022-02-19 10:56:33,958 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:56:33,959 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 47 states [2022-02-19 10:56:33,959 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:56:33,960 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 47 interpolants. [2022-02-19 10:56:33,961 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=480, Invalid=1682, Unknown=0, NotChecked=0, Total=2162 [2022-02-19 10:56:33,961 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:56:33,961 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:56:33,961 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 47 states, 47 states have (on average 3.425531914893617) internal successors, (161), 46 states have internal predecessors, (161), 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) [2022-02-19 10:56:33,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 10:56:33,961 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:56:35,266 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 587 transitions and produced 507 states. [2022-02-19 10:56:35,266 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 10:56:35,267 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:35,286 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-19 10:56:35,483 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 [2022-02-19 10:56:35,483 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 10:56:35,484 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:56:35,484 INFO L85 PathProgramCache]: Analyzing trace with hash -1511047105, now seen corresponding path program 3 times [2022-02-19 10:56:35,484 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:56:35,484 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344054636] [2022-02-19 10:56:35,484 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:56:35,484 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:56:35,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:56:36,484 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 455 proven. 130 refuted. 0 times theorem prover too weak. 64 trivial. 0 not checked. [2022-02-19 10:56:36,484 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:56:36,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344054636] [2022-02-19 10:56:36,484 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1344054636] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:56:36,484 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [110176572] [2022-02-19 10:56:36,484 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 10:56:36,485 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:56:36,485 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:56:36,486 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) [2022-02-19 10:56:36,487 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 10:56:36,557 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 17 check-sat command(s) [2022-02-19 10:56:36,558 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:56:36,559 INFO L263 TraceCheckSpWp]: Trace formula consists of 320 conjuncts, 22 conjunts are in the unsatisfiable core [2022-02-19 10:56:36,562 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:56:37,478 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 497 proven. 64 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-02-19 10:56:37,478 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:56:38,354 INFO L134 CoverageAnalysis]: Checked inductivity of 649 backedges. 497 proven. 64 refuted. 0 times theorem prover too weak. 88 trivial. 0 not checked. [2022-02-19 10:56:38,354 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [110176572] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:56:38,355 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:56:38,355 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [45, 22, 22] total 86 [2022-02-19 10:56:38,355 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [373660812] [2022-02-19 10:56:38,355 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:56:38,356 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 87 states [2022-02-19 10:56:38,356 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:56:38,356 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 87 interpolants. [2022-02-19 10:56:38,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1142, Invalid=6340, Unknown=0, NotChecked=0, Total=7482 [2022-02-19 10:56:38,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:56:38,359 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:56:38,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 87 states, 87 states have (on average 2.8850574712643677) internal successors, (251), 86 states have internal predecessors, (251), 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) [2022-02-19 10:56:38,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 10:56:38,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:38,359 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:56:39,434 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 600 transitions and produced 525 states. [2022-02-19 10:56:39,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 10:56:39,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:39,434 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:39,451 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 10:56:39,636 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 [2022-02-19 10:56:39,637 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 10:56:39,637 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:56:39,637 INFO L85 PathProgramCache]: Analyzing trace with hash 520830019, now seen corresponding path program 4 times [2022-02-19 10:56:39,637 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:56:39,637 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997384242] [2022-02-19 10:56:39,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:56:39,637 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:56:39,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:56:40,812 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 536 proven. 149 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 10:56:40,812 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:56:40,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997384242] [2022-02-19 10:56:40,812 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997384242] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:56:40,812 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1595945348] [2022-02-19 10:56:40,812 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 10:56:40,813 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:56:40,813 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:56:40,814 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) [2022-02-19 10:56:40,817 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 10:56:40,874 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 10:56:40,874 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:56:40,875 INFO L263 TraceCheckSpWp]: Trace formula consists of 330 conjuncts, 22 conjunts are in the unsatisfiable core [2022-02-19 10:56:40,877 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:56:41,705 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 81 proven. 83 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2022-02-19 10:56:41,706 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:56:42,596 INFO L134 CoverageAnalysis]: Checked inductivity of 685 backedges. 100 proven. 64 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2022-02-19 10:56:42,596 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1595945348] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:56:42,596 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:56:42,596 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [56, 22, 22] total 97 [2022-02-19 10:56:42,597 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1770479851] [2022-02-19 10:56:42,597 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:56:42,597 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 98 states [2022-02-19 10:56:42,597 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:56:42,598 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 98 interpolants. [2022-02-19 10:56:42,600 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1056, Invalid=8450, Unknown=0, NotChecked=0, Total=9506 [2022-02-19 10:56:42,600 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:56:42,600 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:56:42,600 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 98 states, 98 states have (on average 2.326530612244898) internal successors, (228), 97 states have internal predecessors, (228), 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) [2022-02-19 10:56:42,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 10:56:42,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:42,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:42,600 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:56:45,321 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 643 transitions and produced 550 states. [2022-02-19 10:56:45,321 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 41 states. [2022-02-19 10:56:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:45,322 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2022-02-19 10:56:45,338 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-19 10:56:45,522 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 [2022-02-19 10:56:45,523 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 10:56:45,523 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:56:45,523 INFO L85 PathProgramCache]: Analyzing trace with hash -1603590329, now seen corresponding path program 5 times [2022-02-19 10:56:45,523 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:56:45,523 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [227658059] [2022-02-19 10:56:45,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:56:45,523 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:56:45,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:56:45,883 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 472 proven. 127 refuted. 0 times theorem prover too weak. 122 trivial. 0 not checked. [2022-02-19 10:56:45,883 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:56:45,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [227658059] [2022-02-19 10:56:45,883 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [227658059] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:56:45,883 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [808707743] [2022-02-19 10:56:45,883 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 10:56:45,884 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:56:45,884 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:56:45,885 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) [2022-02-19 10:56:45,885 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 10:56:45,948 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 17 check-sat command(s) [2022-02-19 10:56:45,948 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:56:45,950 INFO L263 TraceCheckSpWp]: Trace formula consists of 342 conjuncts, 33 conjunts are in the unsatisfiable core [2022-02-19 10:56:45,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:56:46,896 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 517 proven. 100 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-02-19 10:56:46,897 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:56:47,902 INFO L134 CoverageAnalysis]: Checked inductivity of 721 backedges. 517 proven. 100 refuted. 0 times theorem prover too weak. 104 trivial. 0 not checked. [2022-02-19 10:56:47,902 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [808707743] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:56:47,902 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:56:47,902 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [26, 33, 33] total 89 [2022-02-19 10:56:47,903 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990156094] [2022-02-19 10:56:47,903 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:56:47,903 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-02-19 10:56:47,903 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:56:47,904 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-02-19 10:56:47,905 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1247, Invalid=6763, Unknown=0, NotChecked=0, Total=8010 [2022-02-19 10:56:47,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:56:47,906 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:56:47,906 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 3.088888888888889) internal successors, (278), 89 states have internal predecessors, (278), 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) [2022-02-19 10:56:47,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 41 states. [2022-02-19 10:56:47,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:47,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:47,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 50 states. [2022-02-19 10:56:47,906 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:56:51,959 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 11125 transitions and produced 3534 states. [2022-02-19 10:56:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:56:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:56:51,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:56:51,976 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-19 10:56:52,175 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 [2022-02-19 10:56:52,176 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 10:56:52,176 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:56:52,176 INFO L85 PathProgramCache]: Analyzing trace with hash 450160415, now seen corresponding path program 6 times [2022-02-19 10:56:52,176 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:56:52,176 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1819966297] [2022-02-19 10:56:52,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:56:52,177 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:56:52,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:56:52,403 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 499 proven. 264 refuted. 0 times theorem prover too weak. 434 trivial. 0 not checked. [2022-02-19 10:56:52,404 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:56:52,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1819966297] [2022-02-19 10:56:52,404 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1819966297] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:56:52,404 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1346082940] [2022-02-19 10:56:52,404 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 10:56:52,404 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:56:52,404 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:56:52,406 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) [2022-02-19 10:56:52,407 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 10:56:52,487 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 25 check-sat command(s) [2022-02-19 10:56:52,488 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:56:52,490 INFO L263 TraceCheckSpWp]: Trace formula consists of 412 conjuncts, 38 conjunts are in the unsatisfiable core [2022-02-19 10:56:52,492 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:56:53,614 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 406 proven. 270 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2022-02-19 10:56:53,614 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:56:55,003 INFO L134 CoverageAnalysis]: Checked inductivity of 1197 backedges. 412 proven. 264 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2022-02-19 10:56:55,003 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1346082940] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:56:55,004 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:56:55,004 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [25, 38, 38] total 99 [2022-02-19 10:56:55,004 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [24888827] [2022-02-19 10:56:55,004 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:56:55,004 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 99 states [2022-02-19 10:56:55,004 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:56:55,005 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 99 interpolants. [2022-02-19 10:56:55,008 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1872, Invalid=7830, Unknown=0, NotChecked=0, Total=9702 [2022-02-19 10:56:55,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:56:55,008 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:56:55,008 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 99 states, 99 states have (on average 2.6363636363636362) internal successors, (261), 99 states have internal predecessors, (261), 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) [2022-02-19 10:56:55,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:56:55,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:55,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:55,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:56:55,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:56:55,008 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:56:59,501 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 996 transitions and produced 815 states. [2022-02-19 10:56:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:56:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:56:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:56:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:56:59,502 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-19 10:56:59,519 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-02-19 10:56:59,705 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 [2022-02-19 10:56:59,705 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 10:56:59,705 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:56:59,705 INFO L85 PathProgramCache]: Analyzing trace with hash -1444952775, now seen corresponding path program 7 times [2022-02-19 10:56:59,705 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:56:59,706 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [955721679] [2022-02-19 10:56:59,706 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:56:59,706 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:56:59,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:57:00,510 INFO L134 CoverageAnalysis]: Checked inductivity of 1538 backedges. 445 proven. 513 refuted. 0 times theorem prover too weak. 580 trivial. 0 not checked. [2022-02-19 10:57:00,510 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:57:00,510 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [955721679] [2022-02-19 10:57:00,512 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [955721679] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:57:00,512 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1032998284] [2022-02-19 10:57:00,512 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 10:57:00,512 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:57:00,512 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:57:00,513 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:57:00,516 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-19 10:57:00,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:57:00,585 INFO L263 TraceCheckSpWp]: Trace formula consists of 478 conjuncts, 49 conjunts are in the unsatisfiable core [2022-02-19 10:57:00,588 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:57:02,492 INFO L134 CoverageAnalysis]: Checked inductivity of 1538 backedges. 529 proven. 488 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2022-02-19 10:57:02,492 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:57:04,703 INFO L134 CoverageAnalysis]: Checked inductivity of 1538 backedges. 576 proven. 441 refuted. 0 times theorem prover too weak. 521 trivial. 0 not checked. [2022-02-19 10:57:04,703 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1032998284] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:57:04,703 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:57:04,703 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [46, 49, 49] total 142 [2022-02-19 10:57:04,703 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1571058086] [2022-02-19 10:57:04,704 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:57:04,704 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2022-02-19 10:57:04,704 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:57:04,705 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2022-02-19 10:57:04,709 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2571, Invalid=17451, Unknown=0, NotChecked=0, Total=20022 [2022-02-19 10:57:04,709 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:57:04,709 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:57:04,710 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 142 states, 142 states have (on average 2.4014084507042255) internal successors, (341), 142 states have internal predecessors, (341), 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) [2022-02-19 10:57:04,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:57:04,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:04,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:04,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:57:04,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:57:04,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-19 10:57:04,710 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:57:12,088 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1206 transitions and produced 955 states. [2022-02-19 10:57:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:57:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:57:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:57:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-19 10:57:12,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-19 10:57:12,105 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-19 10:57:12,289 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-19 10:57:12,289 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 10:57:12,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:57:12,289 INFO L85 PathProgramCache]: Analyzing trace with hash -187004699, now seen corresponding path program 8 times [2022-02-19 10:57:12,290 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:57:12,290 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842563826] [2022-02-19 10:57:12,290 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:57:12,290 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:57:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:57:13,003 INFO L134 CoverageAnalysis]: Checked inductivity of 2794 backedges. 529 proven. 1230 refuted. 0 times theorem prover too weak. 1035 trivial. 0 not checked. [2022-02-19 10:57:13,004 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:57:13,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842563826] [2022-02-19 10:57:13,004 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842563826] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:57:13,004 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [27330194] [2022-02-19 10:57:13,004 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 10:57:13,004 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:57:13,004 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:57:13,008 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:57:13,036 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-19 10:57:13,144 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 10:57:13,145 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:57:13,147 INFO L263 TraceCheckSpWp]: Trace formula consists of 591 conjuncts, 52 conjunts are in the unsatisfiable core [2022-02-19 10:57:13,149 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:57:15,062 INFO L134 CoverageAnalysis]: Checked inductivity of 2794 backedges. 1351 proven. 576 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2022-02-19 10:57:15,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:57:17,300 INFO L134 CoverageAnalysis]: Checked inductivity of 2794 backedges. 1351 proven. 576 refuted. 0 times theorem prover too weak. 867 trivial. 0 not checked. [2022-02-19 10:57:17,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [27330194] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:57:17,301 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:57:17,301 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [40, 52, 52] total 141 [2022-02-19 10:57:17,301 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [925020757] [2022-02-19 10:57:17,301 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:57:17,302 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 142 states [2022-02-19 10:57:17,302 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:57:17,303 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 142 interpolants. [2022-02-19 10:57:17,306 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2510, Invalid=17512, Unknown=0, NotChecked=0, Total=20022 [2022-02-19 10:57:17,306 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:57:17,306 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:57:17,307 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 142 states, 142 states have (on average 2.5140845070422535) internal successors, (357), 141 states have internal predecessors, (357), 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) [2022-02-19 10:57:17,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:57:17,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:17,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:17,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:57:17,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:57:17,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-19 10:57:17,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-02-19 10:57:17,307 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:57:23,557 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1656 transitions and produced 1349 states. [2022-02-19 10:57:23,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:57:23,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:23,557 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:23,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:57:23,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:57:23,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-19 10:57:23,558 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-19 10:57:23,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2022-02-19 10:57:23,575 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-19 10:57:23,760 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:57:23,760 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 10:57:23,761 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:57:23,761 INFO L85 PathProgramCache]: Analyzing trace with hash 489722505, now seen corresponding path program 9 times [2022-02-19 10:57:23,761 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:57:23,761 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [725125158] [2022-02-19 10:57:23,761 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:57:23,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:57:23,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:57:31,020 INFO L134 CoverageAnalysis]: Checked inductivity of 6854 backedges. 6000 proven. 848 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:57:31,020 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:57:31,020 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [725125158] [2022-02-19 10:57:31,022 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [725125158] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:57:31,022 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1625807363] [2022-02-19 10:57:31,022 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 10:57:31,022 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:57:31,022 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:57:31,023 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:57:31,023 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-19 10:57:31,132 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 30 check-sat command(s) [2022-02-19 10:57:31,132 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:57:31,135 INFO L263 TraceCheckSpWp]: Trace formula consists of 554 conjuncts, 57 conjunts are in the unsatisfiable core [2022-02-19 10:57:31,138 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:57:35,606 INFO L134 CoverageAnalysis]: Checked inductivity of 6854 backedges. 631 proven. 786 refuted. 0 times theorem prover too weak. 5437 trivial. 0 not checked. [2022-02-19 10:57:35,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:57:40,610 INFO L134 CoverageAnalysis]: Checked inductivity of 6854 backedges. 637 proven. 780 refuted. 0 times theorem prover too weak. 5437 trivial. 0 not checked. [2022-02-19 10:57:40,610 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1625807363] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:57:40,610 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:57:40,610 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [151, 57, 57] total 262 [2022-02-19 10:57:40,610 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1355058755] [2022-02-19 10:57:40,610 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:57:40,611 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 263 states [2022-02-19 10:57:40,611 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:57:40,612 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 263 interpolants. [2022-02-19 10:57:40,617 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7894, Invalid=61012, Unknown=0, NotChecked=0, Total=68906 [2022-02-19 10:57:40,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:57:40,617 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:57:40,618 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 263 states, 263 states have (on average 2.1330798479087454) internal successors, (561), 262 states have internal predecessors, (561), 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) [2022-02-19 10:57:40,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:57:40,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:40,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:40,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:57:40,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:57:40,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-19 10:57:40,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-02-19 10:57:40,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2022-02-19 10:57:40,618 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:57:51,179 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1721 transitions and produced 1376 states. [2022-02-19 10:57:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:57:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:57:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:57:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-19 10:57:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-19 10:57:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2022-02-19 10:57:51,180 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 130 states. [2022-02-19 10:57:51,200 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-19 10:57:51,381 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-19 10:57:51,381 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 10:57:51,381 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:57:51,381 INFO L85 PathProgramCache]: Analyzing trace with hash 1895624471, now seen corresponding path program 10 times [2022-02-19 10:57:51,381 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:57:51,382 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707671075] [2022-02-19 10:57:51,382 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:57:51,382 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:57:51,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:57:52,754 INFO L134 CoverageAnalysis]: Checked inductivity of 7119 backedges. 784 proven. 5005 refuted. 0 times theorem prover too weak. 1330 trivial. 0 not checked. [2022-02-19 10:57:52,755 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:57:52,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707671075] [2022-02-19 10:57:52,755 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [707671075] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:57:52,755 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2098372878] [2022-02-19 10:57:52,755 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 10:57:52,755 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:57:52,755 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:57:52,756 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:57:52,757 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-19 10:57:52,864 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 10:57:52,864 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:57:52,868 INFO L263 TraceCheckSpWp]: Trace formula consists of 886 conjuncts, 62 conjunts are in the unsatisfiable core [2022-02-19 10:57:52,871 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:57:55,682 INFO L134 CoverageAnalysis]: Checked inductivity of 7119 backedges. 3393 proven. 841 refuted. 0 times theorem prover too weak. 2885 trivial. 0 not checked. [2022-02-19 10:57:55,683 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:57:59,259 INFO L134 CoverageAnalysis]: Checked inductivity of 7119 backedges. 3393 proven. 841 refuted. 0 times theorem prover too weak. 2885 trivial. 0 not checked. [2022-02-19 10:57:59,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2098372878] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:57:59,260 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:57:59,260 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [60, 62, 62] total 181 [2022-02-19 10:57:59,260 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28245274] [2022-02-19 10:57:59,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:57:59,261 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 182 states [2022-02-19 10:57:59,261 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:57:59,261 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 182 interpolants. [2022-02-19 10:57:59,263 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3845, Invalid=29097, Unknown=0, NotChecked=0, Total=32942 [2022-02-19 10:57:59,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:57:59,263 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:57:59,264 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 182 states, 182 states have (on average 2.60989010989011) internal successors, (475), 181 states have internal predecessors, (475), 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) [2022-02-19 10:57:59,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:57:59,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:59,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:57:59,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:57:59,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:57:59,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-19 10:57:59,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-02-19 10:57:59,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2022-02-19 10:57:59,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 130 states. [2022-02-19 10:57:59,264 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:58:10,544 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1921 transitions and produced 1540 states. [2022-02-19 10:58:10,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:58:10,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:58:10,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:58:10,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:58:10,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:58:10,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-19 10:58:10,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-19 10:58:10,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2022-02-19 10:58:10,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2022-02-19 10:58:10,545 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-02-19 10:58:10,563 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-19 10:58:10,747 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-19 10:58:10,747 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 10:58:10,748 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:58:10,748 INFO L85 PathProgramCache]: Analyzing trace with hash -1054489817, now seen corresponding path program 11 times [2022-02-19 10:58:10,748 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:58:10,748 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1776044936] [2022-02-19 10:58:10,748 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:58:10,748 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:58:10,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:58:20,302 INFO L134 CoverageAnalysis]: Checked inductivity of 9199 backedges. 8035 proven. 1158 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 10:58:20,303 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:58:20,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1776044936] [2022-02-19 10:58:20,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1776044936] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:58:20,303 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [335778100] [2022-02-19 10:58:20,303 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 10:58:20,303 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:58:20,303 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:58:20,304 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:58:20,319 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-19 10:58:20,497 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 71 check-sat command(s) [2022-02-19 10:58:20,497 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:58:20,505 INFO L263 TraceCheckSpWp]: Trace formula consists of 991 conjuncts, 112 conjunts are in the unsatisfiable core [2022-02-19 10:58:20,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:58:32,086 INFO L134 CoverageAnalysis]: Checked inductivity of 9199 backedges. 7198 proven. 1085 refuted. 0 times theorem prover too weak. 916 trivial. 0 not checked. [2022-02-19 10:58:32,087 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:58:45,384 INFO L134 CoverageAnalysis]: Checked inductivity of 9199 backedges. 7198 proven. 1085 refuted. 0 times theorem prover too weak. 916 trivial. 0 not checked. [2022-02-19 10:58:45,384 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [335778100] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:58:45,384 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:58:45,385 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [176, 113, 113] total 399 [2022-02-19 10:58:45,385 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [907741419] [2022-02-19 10:58:45,385 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:58:45,388 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 399 states [2022-02-19 10:58:45,388 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:58:45,392 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 399 interpolants. [2022-02-19 10:58:45,400 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26021, Invalid=132781, Unknown=0, NotChecked=0, Total=158802 [2022-02-19 10:58:45,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:58:45,400 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:58:45,401 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 399 states, 399 states have (on average 2.388471177944862) internal successors, (953), 399 states have internal predecessors, (953), 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) [2022-02-19 10:58:45,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:58:45,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:58:45,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:58:45,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:58:45,401 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:58:45,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-19 10:58:45,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-02-19 10:58:45,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2022-02-19 10:58:45,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2022-02-19 10:58:45,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2022-02-19 10:58:45,402 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:59:06,489 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2279 transitions and produced 1750 states. [2022-02-19 10:59:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:59:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:59:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:59:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:59:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:59:06,489 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-19 10:59:06,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-19 10:59:06,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2022-02-19 10:59:06,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2022-02-19 10:59:06,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-02-19 10:59:06,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 243 states. [2022-02-19 10:59:06,507 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-19 10:59:06,690 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-02-19 10:59:06,690 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 10:59:06,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:59:06,691 INFO L85 PathProgramCache]: Analyzing trace with hash 420627747, now seen corresponding path program 12 times [2022-02-19 10:59:06,691 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:59:06,691 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [244611580] [2022-02-19 10:59:06,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:59:06,691 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:59:06,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:59:07,200 INFO L134 CoverageAnalysis]: Checked inductivity of 11763 backedges. 2816 proven. 961 refuted. 0 times theorem prover too weak. 7986 trivial. 0 not checked. [2022-02-19 10:59:07,200 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:59:07,200 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [244611580] [2022-02-19 10:59:07,200 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [244611580] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:59:07,201 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1043005825] [2022-02-19 10:59:07,201 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 10:59:07,201 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:59:07,201 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:59:07,202 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:59:07,203 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-02-19 10:59:07,415 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 70 check-sat command(s) [2022-02-19 10:59:07,415 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 10:59:07,421 INFO L263 TraceCheckSpWp]: Trace formula consists of 1151 conjuncts, 96 conjunts are in the unsatisfiable core [2022-02-19 10:59:07,425 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 10:59:11,628 INFO L134 CoverageAnalysis]: Checked inductivity of 11763 backedges. 6775 proven. 961 refuted. 0 times theorem prover too weak. 4027 trivial. 0 not checked. [2022-02-19 10:59:11,628 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 10:59:17,286 INFO L134 CoverageAnalysis]: Checked inductivity of 11763 backedges. 6775 proven. 961 refuted. 0 times theorem prover too weak. 4027 trivial. 0 not checked. [2022-02-19 10:59:17,286 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1043005825] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 10:59:17,286 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 10:59:17,286 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [34, 96, 96] total 224 [2022-02-19 10:59:17,287 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [166083747] [2022-02-19 10:59:17,287 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 10:59:17,287 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 224 states [2022-02-19 10:59:17,287 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 10:59:17,289 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 224 interpolants. [2022-02-19 10:59:17,292 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10119, Invalid=39833, Unknown=0, NotChecked=0, Total=49952 [2022-02-19 10:59:17,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:59:17,292 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 10:59:17,292 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 224 states, 224 states have (on average 2.861607142857143) internal successors, (641), 224 states have internal predecessors, (641), 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) [2022-02-19 10:59:17,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:59:17,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:59:17,292 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:59:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:59:17,293 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:59:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-19 10:59:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-02-19 10:59:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2022-02-19 10:59:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2022-02-19 10:59:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2022-02-19 10:59:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 243 states. [2022-02-19 10:59:17,294 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 10:59:33,413 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2804 transitions and produced 2079 states. [2022-02-19 10:59:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-19 10:59:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:59:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 10:59:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-19 10:59:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-19 10:59:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-19 10:59:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-19 10:59:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2022-02-19 10:59:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2022-02-19 10:59:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-02-19 10:59:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 339 states. [2022-02-19 10:59:33,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-02-19 10:59:33,430 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-02-19 10:59:33,614 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-19 10:59:33,614 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 10:59:33,615 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 10:59:33,615 INFO L85 PathProgramCache]: Analyzing trace with hash -1552064923, now seen corresponding path program 13 times [2022-02-19 10:59:33,615 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 10:59:33,615 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1376197954] [2022-02-19 10:59:33,615 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 10:59:33,615 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 10:59:33,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:59:45,630 INFO L134 CoverageAnalysis]: Checked inductivity of 15158 backedges. 11417 proven. 3733 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2022-02-19 10:59:45,630 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 10:59:45,630 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1376197954] [2022-02-19 10:59:45,636 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1376197954] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 10:59:45,637 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1972805025] [2022-02-19 10:59:45,637 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 10:59:45,637 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 10:59:45,637 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 10:59:45,638 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 10:59:45,639 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-02-19 10:59:45,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 10:59:45,813 INFO L263 TraceCheckSpWp]: Trace formula consists of 1337 conjuncts, 130 conjunts are in the unsatisfiable core [2022-02-19 10:59:45,818 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:00:00,606 INFO L134 CoverageAnalysis]: Checked inductivity of 15158 backedges. 3850 proven. 4106 refuted. 0 times theorem prover too weak. 7202 trivial. 0 not checked. [2022-02-19 11:00:00,606 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:00:19,345 INFO L134 CoverageAnalysis]: Checked inductivity of 15158 backedges. 3856 proven. 4100 refuted. 0 times theorem prover too weak. 7202 trivial. 0 not checked. [2022-02-19 11:00:19,345 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1972805025] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:00:19,346 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:00:19,346 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [207, 130, 130] total 464 [2022-02-19 11:00:19,346 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [556402737] [2022-02-19 11:00:19,346 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:00:19,347 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 465 states [2022-02-19 11:00:19,347 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:00:19,350 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 465 interpolants. [2022-02-19 11:00:19,359 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20718, Invalid=195042, Unknown=0, NotChecked=0, Total=215760 [2022-02-19 11:00:19,360 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:00:19,360 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:00:19,361 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 465 states, 465 states have (on average 2.2021505376344086) internal successors, (1024), 464 states have internal predecessors, (1024), 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) [2022-02-19 11:00:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-19 11:00:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:00:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:00:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-19 11:00:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-19 11:00:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-19 11:00:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-02-19 11:00:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2022-02-19 11:00:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2022-02-19 11:00:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2022-02-19 11:00:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 339 states. [2022-02-19 11:00:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-02-19 11:00:19,361 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:01:25,751 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2882 transitions and produced 2114 states. [2022-02-19 11:01:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-19 11:01:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:01:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:01:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-19 11:01:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-19 11:01:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-19 11:01:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-19 11:01:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2022-02-19 11:01:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2022-02-19 11:01:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-02-19 11:01:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 339 states. [2022-02-19 11:01:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-02-19 11:01:25,752 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 445 states. [2022-02-19 11:01:25,769 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-02-19 11:01:25,953 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:01:25,953 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:01:25,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:01:25,954 INFO L85 PathProgramCache]: Analyzing trace with hash -1565747787, now seen corresponding path program 14 times [2022-02-19 11:01:25,954 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:01:25,954 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1299667108] [2022-02-19 11:01:25,954 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:01:25,954 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:01:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:01:29,624 INFO L134 CoverageAnalysis]: Checked inductivity of 15914 backedges. 4225 proven. 6834 refuted. 0 times theorem prover too weak. 4855 trivial. 0 not checked. [2022-02-19 11:01:29,624 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:01:29,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1299667108] [2022-02-19 11:01:29,624 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1299667108] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:01:29,624 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1671514018] [2022-02-19 11:01:29,624 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 11:01:29,624 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:01:29,624 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:01:29,625 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:01:29,626 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-02-19 11:01:29,791 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 11:01:29,792 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:01:29,801 INFO L263 TraceCheckSpWp]: Trace formula consists of 1373 conjuncts, 136 conjunts are in the unsatisfiable core [2022-02-19 11:01:29,806 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:01:40,293 INFO L134 CoverageAnalysis]: Checked inductivity of 15914 backedges. 6982 proven. 4356 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2022-02-19 11:01:40,293 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:01:54,846 INFO L134 CoverageAnalysis]: Checked inductivity of 15914 backedges. 6982 proven. 4356 refuted. 0 times theorem prover too weak. 4576 trivial. 0 not checked. [2022-02-19 11:01:54,846 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1671514018] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:01:54,846 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:01:54,847 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [102, 136, 136] total 371 [2022-02-19 11:01:54,847 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [587375514] [2022-02-19 11:01:54,847 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:01:54,848 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 372 states [2022-02-19 11:01:54,848 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:01:54,850 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 372 interpolants. [2022-02-19 11:01:54,855 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=16881, Invalid=121131, Unknown=0, NotChecked=0, Total=138012 [2022-02-19 11:01:54,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:01:54,856 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:01:54,856 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 372 states, 372 states have (on average 2.5295698924731185) internal successors, (941), 371 states have internal predecessors, (941), 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) [2022-02-19 11:01:54,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-19 11:01:54,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:01:54,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:01:54,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-19 11:01:54,856 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-19 11:01:54,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-19 11:01:54,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-02-19 11:01:54,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2022-02-19 11:01:54,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2022-02-19 11:01:54,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2022-02-19 11:01:54,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 339 states. [2022-02-19 11:01:54,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-02-19 11:01:54,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 445 states. [2022-02-19 11:01:54,857 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:02:40,170 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3882 transitions and produced 3014 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 339 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 508 states. [2022-02-19 11:02:40,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 438 states. [2022-02-19 11:02:40,189 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-02-19 11:02:40,383 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:02:40,383 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:02:40,384 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:02:40,384 INFO L85 PathProgramCache]: Analyzing trace with hash -1407727867, now seen corresponding path program 15 times [2022-02-19 11:02:40,384 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:02:40,384 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [202785407] [2022-02-19 11:02:40,385 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:02:40,385 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:02:40,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:03:18,172 INFO L134 CoverageAnalysis]: Checked inductivity of 37430 backedges. 32418 proven. 5006 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 11:03:18,172 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:03:18,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [202785407] [2022-02-19 11:03:18,172 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [202785407] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:03:18,172 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [981130380] [2022-02-19 11:03:18,172 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 11:03:18,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:03:18,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:03:18,174 INFO L229 MonitoredProcess]: Starting monitored process 17 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:03:18,174 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Waiting until timeout for monitored process [2022-02-19 11:03:18,462 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 72 check-sat command(s) [2022-02-19 11:03:18,462 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:03:18,472 INFO L263 TraceCheckSpWp]: Trace formula consists of 1403 conjuncts, 141 conjunts are in the unsatisfiable core [2022-02-19 11:03:18,478 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:03:42,826 INFO L134 CoverageAnalysis]: Checked inductivity of 37430 backedges. 4495 proven. 4902 refuted. 0 times theorem prover too weak. 28033 trivial. 0 not checked. [2022-02-19 11:03:42,826 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:04:10,912 INFO L134 CoverageAnalysis]: Checked inductivity of 37430 backedges. 4501 proven. 4896 refuted. 0 times theorem prover too weak. 28033 trivial. 0 not checked. [2022-02-19 11:04:10,913 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [981130380] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:04:10,913 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:04:10,913 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [361, 141, 141] total 640 [2022-02-19 11:04:10,913 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239713774] [2022-02-19 11:04:10,913 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:04:10,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 641 states [2022-02-19 11:04:10,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:04:10,919 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 641 interpolants. [2022-02-19 11:04:10,932 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=44539, Invalid=365701, Unknown=0, NotChecked=0, Total=410240 [2022-02-19 11:04:10,933 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:04:10,933 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:04:10,934 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 641 states, 641 states have (on average 2.0546021840873636) internal successors, (1317), 640 states have internal predecessors, (1317), 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) [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 339 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 508 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 438 states. [2022-02-19 11:04:10,934 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:05:07,823 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3947 transitions and produced 3041 states. [2022-02-19 11:05:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-19 11:05:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:05:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:05:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-19 11:05:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-19 11:05:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-19 11:05:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-19 11:05:07,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2022-02-19 11:05:07,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2022-02-19 11:05:07,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-02-19 11:05:07,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 339 states. [2022-02-19 11:05:07,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-02-19 11:05:07,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 508 states. [2022-02-19 11:05:07,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 438 states. [2022-02-19 11:05:07,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 326 states. [2022-02-19 11:05:07,844 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (17)] Forceful destruction successful, exit code 0 [2022-02-19 11:05:08,025 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 17 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable14 [2022-02-19 11:05:08,026 INFO L402 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:05:08,026 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:05:08,026 INFO L85 PathProgramCache]: Analyzing trace with hash -1823867245, now seen corresponding path program 16 times [2022-02-19 11:05:08,026 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:05:08,026 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1828759683] [2022-02-19 11:05:08,026 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:05:08,026 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:05:08,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:05:14,590 INFO L134 CoverageAnalysis]: Checked inductivity of 38115 backedges. 4900 proven. 27601 refuted. 0 times theorem prover too weak. 5614 trivial. 0 not checked. [2022-02-19 11:05:14,590 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:05:14,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1828759683] [2022-02-19 11:05:14,590 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1828759683] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:05:14,590 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1172580678] [2022-02-19 11:05:14,590 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 11:05:14,590 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:05:14,590 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:05:14,591 INFO L229 MonitoredProcess]: Starting monitored process 18 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:05:14,592 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Waiting until timeout for monitored process [2022-02-19 11:05:14,830 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 11:05:14,830 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:05:14,843 INFO L263 TraceCheckSpWp]: Trace formula consists of 2020 conjuncts, 146 conjunts are in the unsatisfiable core [2022-02-19 11:05:14,849 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:05:28,415 INFO L134 CoverageAnalysis]: Checked inductivity of 38115 backedges. 19542 proven. 5041 refuted. 0 times theorem prover too weak. 13532 trivial. 0 not checked. [2022-02-19 11:05:28,415 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 11:05:46,301 INFO L134 CoverageAnalysis]: Checked inductivity of 38115 backedges. 19542 proven. 5041 refuted. 0 times theorem prover too weak. 13532 trivial. 0 not checked. [2022-02-19 11:05:46,301 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1172580678] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 11:05:46,301 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 11:05:46,302 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [144, 146, 146] total 433 [2022-02-19 11:05:46,302 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1039255858] [2022-02-19 11:05:46,302 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 11:05:46,303 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 434 states [2022-02-19 11:05:46,303 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 11:05:46,306 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 434 interpolants. [2022-02-19 11:05:46,316 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21317, Invalid=166605, Unknown=0, NotChecked=0, Total=187922 [2022-02-19 11:05:46,316 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:05:46,316 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 11:05:46,319 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 434 states, 434 states have (on average 2.642857142857143) internal successors, (1147), 433 states have internal predecessors, (1147), 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) [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 47 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 68 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 126 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 119 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 166 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 169 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 211 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 339 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 191 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 508 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 438 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 326 states. [2022-02-19 11:05:46,320 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 11:06:45,527 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 4147 transitions and produced 3205 states. [2022-02-19 11:06:45,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 47 states. [2022-02-19 11:06:45,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:06:45,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-02-19 11:06:45,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 68 states. [2022-02-19 11:06:45,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-19 11:06:45,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 126 states. [2022-02-19 11:06:45,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 119 states. [2022-02-19 11:06:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 166 states. [2022-02-19 11:06:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 169 states. [2022-02-19 11:06:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 211 states. [2022-02-19 11:06:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 339 states. [2022-02-19 11:06:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 191 states. [2022-02-19 11:06:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 508 states. [2022-02-19 11:06:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 438 states. [2022-02-19 11:06:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 421 states. [2022-02-19 11:06:45,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 505 states. [2022-02-19 11:06:45,546 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (18)] Forceful destruction successful, exit code 0 [2022-02-19 11:06:45,728 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 18 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable15 [2022-02-19 11:06:45,729 INFO L402 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 1 more)] === [2022-02-19 11:06:45,729 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 11:06:45,729 INFO L85 PathProgramCache]: Analyzing trace with hash 1692581027, now seen corresponding path program 17 times [2022-02-19 11:06:45,729 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 11:06:45,729 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [550363556] [2022-02-19 11:06:45,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 11:06:45,729 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 11:06:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 11:07:29,283 INFO L134 CoverageAnalysis]: Checked inductivity of 42715 backedges. 36973 proven. 5736 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 11:07:29,283 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 11:07:29,283 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [550363556] [2022-02-19 11:07:29,283 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [550363556] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 11:07:29,284 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [404078048] [2022-02-19 11:07:29,284 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 11:07:29,284 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 11:07:29,284 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 11:07:29,285 INFO L229 MonitoredProcess]: Starting monitored process 19 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 11:07:29,287 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Waiting until timeout for monitored process [2022-02-19 11:07:29,910 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 135 check-sat command(s) [2022-02-19 11:07:29,910 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 11:07:29,936 INFO L263 TraceCheckSpWp]: Trace formula consists of 2125 conjuncts, 240 conjunts are in the unsatisfiable core [2022-02-19 11:07:29,957 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 11:08:18,756 INFO L134 CoverageAnalysis]: Checked inductivity of 42715 backedges. 581 proven. 31317 refuted. 0 times theorem prover too weak. 10817 trivial. 0 not checked. [2022-02-19 11:08:18,756 INFO L328 TraceCheckSpWp]: Computing backward predicates... Received shutdown request... [2022-02-19 11:08:32,001 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (4 of 5 remaining) [2022-02-19 11:08:32,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Forceful destruction successful, exit code 0 [2022-02-19 11:08:32,034 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (19)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 11:08:32,034 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 [2022-02-19 11:08:32,034 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 [2022-02-19 11:08:32,202 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 19 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable16 [2022-02-19 11:08:32,202 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 792 with TraceHistMax 163,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 694 known predicates. [2022-02-19 11:08:32,203 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (3 of 5 remaining) [2022-02-19 11:08:32,204 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (2 of 5 remaining) [2022-02-19 11:08:32,204 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr2INUSE_VIOLATION (1 of 5 remaining) [2022-02-19 11:08:32,204 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr3INUSE_VIOLATION (0 of 5 remaining) [2022-02-19 11:08:32,208 INFO L732 BasicCegarLoop]: Path program histogram: [17] [2022-02-19 11:08:32,209 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 11:08:32,209 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 11:08:32,211 INFO L202 PluginConnector]: Adding new model counter-determinism.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 11:08:32 BasicIcfg [2022-02-19 11:08:32,211 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 11:08:32,214 INFO L158 Benchmark]: Toolchain (without parser) took 725657.73ms. Allocated memory was 190.8MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 155.3MB in the beginning and 332.2MB in the end (delta: -176.9MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-02-19 11:08:32,214 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.36ms. Allocated memory is still 190.8MB. Free memory was 156.5MB in the beginning and 156.3MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 11:08:32,214 INFO L158 Benchmark]: Boogie Procedure Inliner took 17.07ms. Allocated memory is still 190.8MB. Free memory was 155.1MB in the beginning and 153.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-19 11:08:32,214 INFO L158 Benchmark]: Boogie Preprocessor took 17.89ms. Allocated memory is still 190.8MB. Free memory was 153.6MB in the beginning and 152.7MB in the end (delta: 906.6kB). There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 11:08:32,214 INFO L158 Benchmark]: RCFGBuilder took 177.79ms. Allocated memory is still 190.8MB. Free memory was 152.6MB in the beginning and 142.7MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. [2022-02-19 11:08:32,214 INFO L158 Benchmark]: TraceAbstraction took 725437.41ms. Allocated memory was 190.8MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 142.3MB in the beginning and 332.2MB in the end (delta: -189.9MB). Peak memory consumption was 1.8GB. Max. memory is 8.0GB. [2022-02-19 11:08:32,215 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 0.36ms. Allocated memory is still 190.8MB. Free memory was 156.5MB in the beginning and 156.3MB in the end (delta: 140.1kB). There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 17.07ms. Allocated memory is still 190.8MB. Free memory was 155.1MB in the beginning and 153.6MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 17.89ms. Allocated memory is still 190.8MB. Free memory was 153.6MB in the beginning and 152.7MB in the end (delta: 906.6kB). There was no memory consumed. Max. memory is 8.0GB. * RCFGBuilder took 177.79ms. Allocated memory is still 190.8MB. Free memory was 152.6MB in the beginning and 142.7MB in the end (delta: 9.9MB). Peak memory consumption was 9.4MB. Max. memory is 8.0GB. * TraceAbstraction took 725437.41ms. Allocated memory was 190.8MB in the beginning and 2.1GB in the end (delta: 1.9GB). Free memory was 142.3MB in the beginning and 332.2MB in the end (delta: -189.9MB). Peak memory consumption was 1.8GB. 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: 83]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 792 with TraceHistMax 163,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 694 known predicates. - TimeoutResultAtElement [Line: 75]: 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 792 with TraceHistMax 163,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 694 known predicates. - TimeoutResultAtElement [Line: 74]: 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 792 with TraceHistMax 163,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 694 known predicates. - TimeoutResultAtElement [Line: 74]: 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 792 with TraceHistMax 163,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 694 known predicates. - TimeoutResultAtElement [Line: 76]: 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 792 with TraceHistMax 163,while TraceCheckSpWp was constructing backward predicates,while PredicateComparison was comparing new predicate (quantifier-free) to 694 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 56 locations, 5 error locations. Started 1 CEGAR loops. OverallTime: 725.4s, OverallIterations: 17, TraceHistogramMax: 0, PathProgramHistogramMax: 17, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 317.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3466, 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: 0.4s SsaConstructionTime, 3.3s SatisfiabilityAnalysisTime, 293.4s InterpolantComputationTime, 10060 NumberOfCodeBlocks, 9722 NumberOfCodeBlocksAsserted, 330 NumberOfCheckSat, 15042 ConstructedInterpolants, 0 QuantifiedInterpolants, 113241 SizeOfPredicates, 100 NumberOfNonLiveVariables, 12618 ConjunctsInSsa, 1130 ConjunctsInUnsatCore, 48 InterpolantComputations, 0 PerfectInterpolantSequences, 347333/448593 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