/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random7777.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/send-receive-alt.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 09:43:47,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 09:43:47,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 09:43:47,783 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-10-25 09:43:47,784 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-10-25 09:43:47,786 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-10-25 09:43:47,788 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-10-25 09:43:47,793 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-10-25 09:43:47,797 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-10-25 09:43:47,801 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-10-25 09:43:47,802 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-10-25 09:43:47,803 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-10-25 09:43:47,804 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-10-25 09:43:47,805 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-10-25 09:43:47,807 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-10-25 09:43:47,812 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-10-25 09:43:47,812 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-10-25 09:43:47,813 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-10-25 09:43:47,814 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-10-25 09:43:47,815 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-10-25 09:43:47,816 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-10-25 09:43:47,817 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-10-25 09:43:47,819 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-10-25 09:43:47,820 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-10-25 09:43:47,829 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-10-25 09:43:47,830 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-10-25 09:43:47,830 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-10-25 09:43:47,831 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-10-25 09:43:47,832 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-10-25 09:43:47,832 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-10-25 09:43:47,833 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-10-25 09:43:47,833 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-10-25 09:43:47,835 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-10-25 09:43:47,835 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-10-25 09:43:47,836 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-10-25 09:43:47,837 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-10-25 09:43:47,837 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-10-25 09:43:47,837 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-10-25 09:43:47,837 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-10-25 09:43:47,838 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-10-25 09:43:47,839 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-10-25 09:43:47,839 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Random7777.epf [2021-10-25 09:43:47,871 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 09:43:47,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 09:43:47,872 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 09:43:47,872 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 09:43:47,873 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 09:43:47,873 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 09:43:47,874 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 09:43:47,874 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 09:43:47,874 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 09:43:47,874 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 09:43:47,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 09:43:47,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 09:43:47,875 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 09:43:47,875 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 09:43:47,875 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 09:43:47,875 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 09:43:47,876 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 09:43:47,876 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 09:43:47,876 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 09:43:47,876 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 09:43:47,876 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 09:43:47,876 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 09:43:47,877 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 09:43:47,877 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 09:43:47,877 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 09:43:47,877 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 09:43:47,877 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 09:43:47,877 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 09:43:47,877 INFO L138 SettingsManager]: * DFS Order used in POR=RANDOM [2021-10-25 09:43:47,878 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 09:43:47,878 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 09:43:47,878 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 09:43:47,878 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 09:43:47,878 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 09:43:47,878 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 09:43:47,879 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 09:43:47,879 INFO L138 SettingsManager]: * Random seed used by POR DFS order=7777 [2021-10-25 09:43:47,879 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 09:43:48,095 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 09:43:48,115 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 09:43:48,117 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 09:43:48,118 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-25 09:43:48,123 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-25 09:43:48,124 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/send-receive-alt.wvr.bpl [2021-10-25 09:43:48,124 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/popl20/send-receive-alt.wvr.bpl' [2021-10-25 09:43:48,145 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 09:43:48,146 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-25 09:43:48,152 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 09:43:48,152 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 09:43:48,152 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 09:43:48,166 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:43:48" (1/1) ... [2021-10-25 09:43:48,179 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:43:48" (1/1) ... [2021-10-25 09:43:48,186 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 09:43:48,188 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 09:43:48,188 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 09:43:48,188 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 09:43:48,195 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:43:48" (1/1) ... [2021-10-25 09:43:48,195 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:43:48" (1/1) ... [2021-10-25 09:43:48,196 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:43:48" (1/1) ... [2021-10-25 09:43:48,196 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:43:48" (1/1) ... [2021-10-25 09:43:48,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:43:48" (1/1) ... [2021-10-25 09:43:48,201 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:43:48" (1/1) ... [2021-10-25 09:43:48,202 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:43:48" (1/1) ... [2021-10-25 09:43:48,203 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 09:43:48,203 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 09:43:48,204 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 09:43:48,204 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 09:43:48,205 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:43:48" (1/1) ... [2021-10-25 09:43:48,213 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 09:43:48,221 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:43:48,232 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-25 09:43:48,234 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-25 09:43:48,261 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-25 09:43:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-25 09:43:48,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-25 09:43:48,261 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-25 09:43:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-25 09:43:48,261 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-25 09:43:48,261 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-25 09:43:48,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 09:43:48,262 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 09:43:48,262 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 09:43:48,408 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 09:43:48,409 INFO L299 CfgBuilder]: Removed 2 assume(true) statements. [2021-10-25 09:43:48,410 WARN L329 CfgBuilder]: Unexpected successor node of atomic block begin: thread1EXIT is neither atomic block end nor error location. [2021-10-25 09:43:48,411 INFO L202 PluginConnector]: Adding new model send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:43:48 BoogieIcfgContainer [2021-10-25 09:43:48,411 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 09:43:48,413 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 09:43:48,413 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 09:43:48,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 09:43:48,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 09:43:48" (1/2) ... [2021-10-25 09:43:48,450 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@402f2e29 and model type send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 09:43:48, skipping insertion in model container [2021-10-25 09:43:48,450 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 09:43:48" (2/2) ... [2021-10-25 09:43:48,451 INFO L111 eAbstractionObserver]: Analyzing ICFG send-receive-alt.wvr.bpl [2021-10-25 09:43:48,456 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 09:43:48,456 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 09:43:48,456 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 09:43:48,456 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 09:43:48,516 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-25 09:43:48,558 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 09:43:48,558 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:43:48,568 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-25 09:43:48,572 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-25 09:43:48,610 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 09:43:48,616 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-25 09:43:48,616 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-25 09:43:48,761 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:43:48,772 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:43:48,772 INFO L82 PathProgramCache]: Analyzing trace with hash -557103014, now seen corresponding path program 1 times [2021-10-25 09:43:48,780 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:43:48,781 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [55876220] [2021-10-25 09:43:48,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:43:48,782 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:43:48,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:43:48,949 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 09:43:48,949 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:43:48,950 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [55876220] [2021-10-25 09:43:48,950 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [55876220] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 09:43:48,950 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 09:43:48,951 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-10-25 09:43:48,952 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1393822095] [2021-10-25 09:43:48,956 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-25 09:43:48,957 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:43:48,972 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-25 09:43:48,974 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-25 09:43:48,974 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:48,975 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:43:48,977 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 3.6666666666666665) internal successors, (11), 3 states have internal predecessors, (11), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:43:48,977 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:48,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:48,998 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-10-25 09:43:48,998 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:43:49,001 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:43:49,001 INFO L82 PathProgramCache]: Analyzing trace with hash -894791561, now seen corresponding path program 1 times [2021-10-25 09:43:49,002 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:43:49,002 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1255316970] [2021-10-25 09:43:49,002 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:43:49,003 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:43:49,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:43:49,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 09:43:49,059 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:43:49,059 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1255316970] [2021-10-25 09:43:49,060 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1255316970] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 09:43:49,060 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 09:43:49,060 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2021-10-25 09:43:49,060 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [719024060] [2021-10-25 09:43:49,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-10-25 09:43:49,061 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:43:49,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-10-25 09:43:49,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-10-25 09:43:49,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:49,062 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:43:49,063 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 4.0) internal successors, (12), 2 states have internal predecessors, (12), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:43:49,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:49,063 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:49,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:49,072 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:49,073 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-10-25 09:43:49,073 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:43:49,073 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:43:49,073 INFO L82 PathProgramCache]: Analyzing trace with hash -1218079646, now seen corresponding path program 1 times [2021-10-25 09:43:49,073 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:43:49,074 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [71851576] [2021-10-25 09:43:49,074 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:43:49,074 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:43:49,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:43:49,238 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 09:43:49,239 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:43:49,239 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [71851576] [2021-10-25 09:43:49,239 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [71851576] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:49,240 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1508027967] [2021-10-25 09:43:49,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:43:49,241 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:43:49,241 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:43:49,247 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 09:43:49,255 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-25 09:43:49,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:43:49,289 INFO L263 TraceCheckSpWp]: Trace formula consists of 34 conjuncts, 9 conjunts are in the unsatisfiable core [2021-10-25 09:43:49,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 09:43:49,465 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 1 select indices, 1 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 1 new quantified variables, introduced 0 case distinctions, treesize of input 16 treesize of output 10 [2021-10-25 09:43:49,542 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 09:43:49,543 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1508027967] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:49,543 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 09:43:49,544 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 5 [2021-10-25 09:43:49,544 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859046993] [2021-10-25 09:43:49,545 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-25 09:43:49,546 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:43:49,548 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-25 09:43:49,549 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2021-10-25 09:43:49,549 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:49,549 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:43:49,549 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 2.5) internal successors, (15), 5 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:43:49,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:49,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:49,549 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:49,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:49,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:49,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:49,612 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2021-10-25 09:43:49,806 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,SelfDestructingSolverStorable2 [2021-10-25 09:43:49,807 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:43:49,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:43:49,808 INFO L82 PathProgramCache]: Analyzing trace with hash -783971353, now seen corresponding path program 2 times [2021-10-25 09:43:49,808 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:43:49,808 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1393906334] [2021-10-25 09:43:49,808 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:43:49,808 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:43:49,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:43:49,849 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 09:43:49,849 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:43:49,851 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1393906334] [2021-10-25 09:43:49,851 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1393906334] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 09:43:49,851 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 09:43:49,852 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-10-25 09:43:49,852 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1795093319] [2021-10-25 09:43:49,852 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-25 09:43:49,852 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:43:49,853 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-25 09:43:49,853 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=10, Unknown=0, NotChecked=0, Total=20 [2021-10-25 09:43:49,853 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:49,853 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:43:49,853 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.2) internal successors, (16), 4 states have internal predecessors, (16), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:43:49,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:49,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:49,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:49,854 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:49,874 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:49,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:49,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:49,875 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:49,875 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-10-25 09:43:49,876 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:43:49,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:43:49,876 INFO L82 PathProgramCache]: Analyzing trace with hash -547437238, now seen corresponding path program 3 times [2021-10-25 09:43:49,876 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:43:49,877 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2099516366] [2021-10-25 09:43:49,877 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:43:49,877 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:43:49,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:43:49,901 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-25 09:43:49,902 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:43:49,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2099516366] [2021-10-25 09:43:49,902 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2099516366] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:49,902 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1196655980] [2021-10-25 09:43:49,902 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 09:43:49,903 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:43:49,903 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:43:49,904 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 09:43:49,907 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-25 09:43:49,970 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-25 09:43:49,970 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 09:43:49,971 INFO L263 TraceCheckSpWp]: Trace formula consists of 57 conjuncts, 3 conjunts are in the unsatisfiable core [2021-10-25 09:43:49,972 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 09:43:50,038 INFO L134 CoverageAnalysis]: Checked inductivity of 25 backedges. 14 proven. 1 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-25 09:43:50,038 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1196655980] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:50,038 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 09:43:50,039 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [4, 4] total 4 [2021-10-25 09:43:50,039 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1840471189] [2021-10-25 09:43:50,039 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2021-10-25 09:43:50,039 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:43:50,040 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2021-10-25 09:43:50,040 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2021-10-25 09:43:50,040 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:50,040 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:43:50,040 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 5.0) internal successors, (20), 4 states have internal predecessors, (20), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:43:50,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:50,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:50,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:50,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:50,041 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:50,069 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:50,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:50,098 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2021-10-25 09:43:50,287 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:43:50,288 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:43:50,288 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:43:50,288 INFO L82 PathProgramCache]: Analyzing trace with hash 1149055122, now seen corresponding path program 1 times [2021-10-25 09:43:50,288 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:43:50,289 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [932116278] [2021-10-25 09:43:50,289 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:43:50,289 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:43:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:43:50,578 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 0 proven. 16 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 09:43:50,579 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:43:50,579 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [932116278] [2021-10-25 09:43:50,579 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [932116278] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:50,582 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1903117789] [2021-10-25 09:43:50,583 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:43:50,583 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:43:50,583 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:43:50,587 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 09:43:50,589 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-25 09:43:50,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:43:50,642 INFO L263 TraceCheckSpWp]: Trace formula consists of 56 conjuncts, 25 conjunts are in the unsatisfiable core [2021-10-25 09:43:50,643 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 09:43:51,096 INFO L354 Elim1Store]: treesize reduction 98, result has 6.7 percent of original size [2021-10-25 09:43:51,097 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 5 select indices, 5 select index equivalence classes, 0 disjoint index pairs (out of 10 index pairs), introduced 5 new quantified variables, introduced 10 case distinctions, treesize of input 60 treesize of output 36 [2021-10-25 09:43:51,144 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 2 proven. 14 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 09:43:51,145 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1903117789] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:51,145 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 09:43:51,145 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 13 [2021-10-25 09:43:51,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [386625804] [2021-10-25 09:43:51,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 14 states [2021-10-25 09:43:51,146 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:43:51,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2021-10-25 09:43:51,146 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=42, Invalid=140, Unknown=0, NotChecked=0, Total=182 [2021-10-25 09:43:51,147 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:51,147 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:43:51,147 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 14 states, 14 states have (on average 2.2857142857142856) internal successors, (32), 13 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:43:51,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:51,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:51,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:51,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:51,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:51,147 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:51,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:51,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:51,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:51,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:51,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:51,278 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:43:51,303 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-25 09:43:51,491 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:43:51,492 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:43:51,492 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:43:51,492 INFO L82 PathProgramCache]: Analyzing trace with hash -1921707337, now seen corresponding path program 2 times [2021-10-25 09:43:51,492 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:43:51,492 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1235909435] [2021-10-25 09:43:51,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:43:51,493 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:43:51,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:43:51,771 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 2 proven. 37 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 09:43:51,772 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:43:51,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1235909435] [2021-10-25 09:43:51,772 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1235909435] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:51,772 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1514108994] [2021-10-25 09:43:51,772 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 09:43:51,772 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:43:51,772 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:43:51,773 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 09:43:51,775 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-25 09:43:51,877 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 09:43:51,878 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 09:43:51,879 INFO L263 TraceCheckSpWp]: Trace formula consists of 73 conjuncts, 33 conjunts are in the unsatisfiable core [2021-10-25 09:43:51,880 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 09:43:52,611 INFO L354 Elim1Store]: treesize reduction 219, result has 4.4 percent of original size [2021-10-25 09:43:52,612 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 7 select indices, 7 select index equivalence classes, 0 disjoint index pairs (out of 21 index pairs), introduced 7 new quantified variables, introduced 21 case distinctions, treesize of input 79 treesize of output 46 [2021-10-25 09:43:52,666 INFO L134 CoverageAnalysis]: Checked inductivity of 39 backedges. 6 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 09:43:52,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1514108994] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:52,666 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 09:43:52,666 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 17 [2021-10-25 09:43:52,667 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197094096] [2021-10-25 09:43:52,667 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 18 states [2021-10-25 09:43:52,667 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:43:52,667 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2021-10-25 09:43:52,668 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=63, Invalid=243, Unknown=0, NotChecked=0, Total=306 [2021-10-25 09:43:52,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:52,668 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:43:52,668 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 18 states, 18 states have (on average 2.5555555555555554) internal successors, (46), 17 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:43:52,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:52,668 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:52,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:52,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:52,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:52,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:43:52,669 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:52,845 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:52,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:52,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:52,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:52,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:52,846 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:43:52,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:43:52,872 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-25 09:43:53,069 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:43:53,070 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:43:53,070 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:43:53,070 INFO L82 PathProgramCache]: Analyzing trace with hash -1121593294, now seen corresponding path program 3 times [2021-10-25 09:43:53,070 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:43:53,070 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [923197555] [2021-10-25 09:43:53,070 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:43:53,071 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:43:53,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:43:53,392 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 0 proven. 41 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2021-10-25 09:43:53,392 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:43:53,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [923197555] [2021-10-25 09:43:53,393 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [923197555] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:53,393 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1657824747] [2021-10-25 09:43:53,393 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 09:43:53,393 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:43:53,393 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:43:53,394 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 09:43:53,424 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2021-10-25 09:43:53,576 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 5 check-sat command(s) [2021-10-25 09:43:53,577 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 09:43:53,578 WARN L261 TraceCheckSpWp]: Trace formula consists of 78 conjuncts, 43 conjunts are in the unsatisfiable core [2021-10-25 09:43:53,581 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 09:43:54,468 INFO L354 Elim1Store]: treesize reduction 404, result has 3.1 percent of original size [2021-10-25 09:43:54,468 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 9 select indices, 9 select index equivalence classes, 0 disjoint index pairs (out of 36 index pairs), introduced 9 new quantified variables, introduced 36 case distinctions, treesize of input 102 treesize of output 58 [2021-10-25 09:43:54,512 INFO L134 CoverageAnalysis]: Checked inductivity of 44 backedges. 6 proven. 38 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 09:43:54,513 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1657824747] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:54,513 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 09:43:54,513 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12, 13] total 20 [2021-10-25 09:43:54,513 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1845873480] [2021-10-25 09:43:54,513 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 21 states [2021-10-25 09:43:54,513 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:43:54,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 21 interpolants. [2021-10-25 09:43:54,515 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=72, Invalid=348, Unknown=0, NotChecked=0, Total=420 [2021-10-25 09:43:54,515 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:54,515 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:43:54,515 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 21 states, 21 states have (on average 2.1904761904761907) internal successors, (46), 20 states have internal predecessors, (46), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:43:54,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:54,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:54,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:54,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:54,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:54,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:43:54,515 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:43:54,516 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:54,640 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:43:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:43:54,641 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-25 09:43:54,667 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Ended with exit code 0 [2021-10-25 09:43:54,855 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:43:54,855 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:43:54,856 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:43:54,856 INFO L82 PathProgramCache]: Analyzing trace with hash -2087861737, now seen corresponding path program 4 times [2021-10-25 09:43:54,856 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:43:54,856 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [105657243] [2021-10-25 09:43:54,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:43:54,856 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:43:54,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:43:54,926 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 21 proven. 16 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2021-10-25 09:43:54,927 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:43:54,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [105657243] [2021-10-25 09:43:54,927 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [105657243] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:54,927 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1619443083] [2021-10-25 09:43:54,927 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-25 09:43:54,927 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:43:54,927 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:43:54,928 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 09:43:54,929 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2021-10-25 09:43:55,122 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-25 09:43:55,122 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 09:43:55,123 INFO L263 TraceCheckSpWp]: Trace formula consists of 83 conjuncts, 12 conjunts are in the unsatisfiable core [2021-10-25 09:43:55,124 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 09:43:55,227 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 21 proven. 12 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-25 09:43:55,227 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1619443083] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:55,227 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 09:43:55,228 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 4] total 5 [2021-10-25 09:43:55,228 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1092179419] [2021-10-25 09:43:55,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 6 states [2021-10-25 09:43:55,228 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:43:55,229 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2021-10-25 09:43:55,229 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=15, Unknown=0, NotChecked=0, Total=30 [2021-10-25 09:43:55,229 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:55,229 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:43:55,229 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 6 states, 6 states have (on average 5.0) internal successors, (30), 5 states have internal predecessors, (30), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:43:55,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:55,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:55,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:55,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:55,229 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:55,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:43:55,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:43:55,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-25 09:43:55,230 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:43:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:43:55,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-25 09:43:55,261 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 09:43:55,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2021-10-25 09:43:55,475 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:43:55,476 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:43:55,476 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:43:55,476 INFO L82 PathProgramCache]: Analyzing trace with hash -354114462, now seen corresponding path program 5 times [2021-10-25 09:43:55,476 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:43:55,476 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626492094] [2021-10-25 09:43:55,476 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:43:55,476 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:43:55,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:43:55,910 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 2 proven. 74 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2021-10-25 09:43:55,910 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:43:55,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626492094] [2021-10-25 09:43:55,911 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [626492094] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:55,911 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [690990740] [2021-10-25 09:43:55,911 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2021-10-25 09:43:55,911 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:43:55,911 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:43:55,914 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) [2021-10-25 09:43:55,915 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2021-10-25 09:43:56,154 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 8 check-sat command(s) [2021-10-25 09:43:56,154 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 09:43:56,155 WARN L261 TraceCheckSpWp]: Trace formula consists of 100 conjuncts, 57 conjunts are in the unsatisfiable core [2021-10-25 09:43:56,157 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 09:43:57,701 INFO L354 Elim1Store]: treesize reduction 870, result has 2.1 percent of original size [2021-10-25 09:43:57,702 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 13 select indices, 13 select index equivalence classes, 0 disjoint index pairs (out of 78 index pairs), introduced 13 new quantified variables, introduced 78 case distinctions, treesize of input 132 treesize of output 72 [2021-10-25 09:43:57,741 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 20 proven. 66 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 09:43:57,741 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [690990740] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:57,742 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 09:43:57,742 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13, 17] total 25 [2021-10-25 09:43:57,742 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [304376199] [2021-10-25 09:43:57,742 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 26 states [2021-10-25 09:43:57,742 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:43:57,743 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 26 interpolants. [2021-10-25 09:43:57,743 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=110, Invalid=540, Unknown=0, NotChecked=0, Total=650 [2021-10-25 09:43:57,743 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:57,743 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:43:57,744 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 26 states, 26 states have (on average 2.230769230769231) internal successors, (58), 25 states have internal predecessors, (58), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:43:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:43:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:43:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-25 09:43:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 09:43:57,744 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:43:57,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:57,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:43:57,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:43:57,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:57,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:43:57,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:43:57,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:43:57,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-25 09:43:57,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 09:43:57,988 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-25 09:43:58,018 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2021-10-25 09:43:58,211 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,SelfDestructingSolverStorable9 [2021-10-25 09:43:58,212 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:43:58,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:43:58,212 INFO L82 PathProgramCache]: Analyzing trace with hash 319807330, now seen corresponding path program 6 times [2021-10-25 09:43:58,212 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:43:58,213 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759631044] [2021-10-25 09:43:58,213 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:43:58,213 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:43:58,249 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:43:58,821 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 4 proven. 191 refuted. 0 times theorem prover too weak. 17 trivial. 0 not checked. [2021-10-25 09:43:58,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:43:58,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759631044] [2021-10-25 09:43:58,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759631044] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:43:58,822 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2012679878] [2021-10-25 09:43:58,822 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2021-10-25 09:43:58,822 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:43:58,822 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:43:58,823 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) [2021-10-25 09:43:58,823 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2021-10-25 09:43:59,161 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 12 check-sat command(s) [2021-10-25 09:43:59,161 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 09:43:59,163 WARN L261 TraceCheckSpWp]: Trace formula consists of 144 conjuncts, 91 conjunts are in the unsatisfiable core [2021-10-25 09:43:59,165 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 09:44:03,228 INFO L354 Elim1Store]: treesize reduction 2450, result has 1.2 percent of original size [2021-10-25 09:44:03,228 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 21 select indices, 21 select index equivalence classes, 0 disjoint index pairs (out of 210 index pairs), introduced 21 new quantified variables, introduced 210 case distinctions, treesize of input 210 treesize of output 112 [2021-10-25 09:44:03,267 INFO L134 CoverageAnalysis]: Checked inductivity of 212 backedges. 46 proven. 166 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 09:44:03,267 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2012679878] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:44:03,267 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 09:44:03,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [16, 25] total 36 [2021-10-25 09:44:03,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [120694943] [2021-10-25 09:44:03,268 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 37 states [2021-10-25 09:44:03,268 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:44:03,269 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 37 interpolants. [2021-10-25 09:44:03,269 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=190, Invalid=1142, Unknown=0, NotChecked=0, Total=1332 [2021-10-25 09:44:03,269 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:44:03,269 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:44:03,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 37 states, 37 states have (on average 2.2972972972972974) internal successors, (85), 36 states have internal predecessors, (85), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:44:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:44:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:44:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:44:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:44:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:44:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:44:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:44:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-25 09:44:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 09:44:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-25 09:44:03,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:44:03,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:44:03,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:44:03,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:44:03,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:44:03,660 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:44:03,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:44:03,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:44:03,661 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-25 09:44:03,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 09:44:03,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-25 09:44:03,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2021-10-25 09:44:03,692 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2021-10-25 09:44:03,888 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:44:03,888 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:44:03,888 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:44:03,888 INFO L82 PathProgramCache]: Analyzing trace with hash -1771661625, now seen corresponding path program 7 times [2021-10-25 09:44:03,889 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:44:03,889 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [287058592] [2021-10-25 09:44:03,889 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:44:03,889 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:44:03,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:44:04,665 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 29 proven. 502 refuted. 0 times theorem prover too weak. 47 trivial. 0 not checked. [2021-10-25 09:44:04,666 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:44:04,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [287058592] [2021-10-25 09:44:04,666 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [287058592] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:44:04,666 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2067833758] [2021-10-25 09:44:04,666 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2021-10-25 09:44:04,666 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:44:04,666 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:44:04,667 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) [2021-10-25 09:44:04,668 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2021-10-25 09:44:05,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:44:05,160 WARN L261 TraceCheckSpWp]: Trace formula consists of 217 conjuncts, 129 conjunts are in the unsatisfiable core [2021-10-25 09:44:05,162 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 09:44:17,199 WARN L207 SmtUtils]: Spent 6.23 s on a formula simplification. DAG size of input: 1938 DAG size of output: 46 [2021-10-25 09:44:17,200 INFO L354 Elim1Store]: treesize reduction 5415, result has 0.8 percent of original size [2021-10-25 09:44:17,200 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 31 select indices, 31 select index equivalence classes, 0 disjoint index pairs (out of 465 index pairs), introduced 31 new quantified variables, introduced 465 case distinctions, treesize of input 295 treesize of output 154 [2021-10-25 09:44:17,282 INFO L134 CoverageAnalysis]: Checked inductivity of 578 backedges. 118 proven. 456 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2021-10-25 09:44:17,282 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2067833758] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:44:17,282 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 09:44:17,282 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [19, 35] total 49 [2021-10-25 09:44:17,283 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [773866019] [2021-10-25 09:44:17,283 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 50 states [2021-10-25 09:44:17,283 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:44:17,284 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 50 interpolants. [2021-10-25 09:44:17,284 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=333, Invalid=2117, Unknown=0, NotChecked=0, Total=2450 [2021-10-25 09:44:17,285 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:44:17,285 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:44:17,285 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 50 states, 50 states have (on average 2.54) internal successors, (127), 49 states have internal predecessors, (127), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:44:17,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:44:17,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:44:17,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:44:17,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:44:17,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:44:17,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:44:17,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:44:17,285 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-25 09:44:17,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 09:44:17,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-25 09:44:17,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 28 states. [2021-10-25 09:44:17,286 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:44:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:44:18,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:44:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:44:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:44:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:44:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:44:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:44:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-25 09:44:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 09:44:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-25 09:44:18,172 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-25 09:44:18,175 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-10-25 09:44:18,193 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2021-10-25 09:44:18,379 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,SelfDestructingSolverStorable11 [2021-10-25 09:44:18,380 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:44:18,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:44:18,380 INFO L82 PathProgramCache]: Analyzing trace with hash 1832041927, now seen corresponding path program 8 times [2021-10-25 09:44:18,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:44:18,380 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [836305831] [2021-10-25 09:44:18,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:44:18,380 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:44:18,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:44:19,338 INFO L134 CoverageAnalysis]: Checked inductivity of 1069 backedges. 8 proven. 830 refuted. 0 times theorem prover too weak. 231 trivial. 0 not checked. [2021-10-25 09:44:19,339 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:44:19,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [836305831] [2021-10-25 09:44:19,339 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [836305831] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:44:19,339 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [423819794] [2021-10-25 09:44:19,339 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 09:44:19,339 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:44:19,339 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:44:19,340 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) [2021-10-25 09:44:19,346 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2021-10-25 09:44:20,198 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 09:44:20,199 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 09:44:20,201 WARN L261 TraceCheckSpWp]: Trace formula consists of 293 conjuncts, 193 conjunts are in the unsatisfiable core [2021-10-25 09:44:20,204 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 09:45:04,384 WARN L207 SmtUtils]: Spent 32.27 s on a formula simplification. DAG size of input: 4442 DAG size of output: 70 [2021-10-25 09:45:04,385 INFO L354 Elim1Store]: treesize reduction 12719, result has 0.5 percent of original size [2021-10-25 09:45:04,385 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 47 select indices, 47 select index equivalence classes, 0 disjoint index pairs (out of 1081 index pairs), introduced 47 new quantified variables, introduced 1081 case distinctions, treesize of input 439 treesize of output 226 [2021-10-25 09:45:04,441 INFO L134 CoverageAnalysis]: Checked inductivity of 1069 backedges. 255 proven. 814 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 09:45:04,441 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [423819794] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:45:04,441 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 09:45:04,441 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [14, 51] total 60 [2021-10-25 09:45:04,442 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [750539050] [2021-10-25 09:45:04,442 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 61 states [2021-10-25 09:45:04,442 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:45:04,443 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 61 interpolants. [2021-10-25 09:45:04,444 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=423, Invalid=3237, Unknown=0, NotChecked=0, Total=3660 [2021-10-25 09:45:04,444 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:45:04,444 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:45:04,444 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 61 states, 61 states have (on average 2.2131147540983607) internal successors, (135), 60 states have internal predecessors, (135), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:45:04,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:45:04,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:45:04,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:45:04,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:45:04,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:45:04,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:45:04,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:45:04,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-25 09:45:04,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 09:45:04,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-25 09:45:04,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-25 09:45:04,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2021-10-25 09:45:04,445 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:45:05,830 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:45:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:45:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:45:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:45:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:45:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:45:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:45:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-25 09:45:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 09:45:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-25 09:45:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-25 09:45:05,831 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 09:45:05,832 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 54 states. [2021-10-25 09:45:05,851 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2021-10-25 09:45:06,039 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,SelfDestructingSolverStorable12 [2021-10-25 09:45:06,040 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:45:06,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:45:06,040 INFO L82 PathProgramCache]: Analyzing trace with hash -617248574, now seen corresponding path program 9 times [2021-10-25 09:45:06,040 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:45:06,040 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2136911491] [2021-10-25 09:45:06,040 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:45:06,040 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:45:06,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:45:07,269 INFO L134 CoverageAnalysis]: Checked inductivity of 1841 backedges. 12 proven. 1465 refuted. 0 times theorem prover too weak. 364 trivial. 0 not checked. [2021-10-25 09:45:07,269 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:45:07,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2136911491] [2021-10-25 09:45:07,269 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2136911491] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:45:07,269 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1649621842] [2021-10-25 09:45:07,269 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 09:45:07,270 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:45:07,270 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:45:07,276 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) [2021-10-25 09:45:07,277 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2021-10-25 09:45:08,851 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 32 check-sat command(s) [2021-10-25 09:45:08,851 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 09:45:08,857 WARN L261 TraceCheckSpWp]: Trace formula consists of 376 conjuncts, 249 conjunts are in the unsatisfiable core [2021-10-25 09:45:08,861 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 09:47:00,945 WARN L207 SmtUtils]: Spent 1.52 m on a formula simplification. DAG size of input: 7473 DAG size of output: 91 [2021-10-25 09:47:00,946 INFO L354 Elim1Store]: treesize reduction 21630, result has 0.4 percent of original size [2021-10-25 09:47:00,946 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 0 stores, 61 select indices, 61 select index equivalence classes, 0 disjoint index pairs (out of 1830 index pairs), introduced 61 new quantified variables, introduced 1830 case distinctions, treesize of input 564 treesize of output 288 [2021-10-25 09:47:01,012 INFO L134 CoverageAnalysis]: Checked inductivity of 1841 backedges. 437 proven. 1402 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-25 09:47:01,012 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1649621842] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:47:01,012 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 09:47:01,012 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [17, 65] total 77 [2021-10-25 09:47:01,013 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1789196988] [2021-10-25 09:47:01,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 78 states [2021-10-25 09:47:01,013 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 09:47:01,014 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 78 interpolants. [2021-10-25 09:47:01,015 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=666, Invalid=5340, Unknown=0, NotChecked=0, Total=6006 [2021-10-25 09:47:01,015 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:47:01,015 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 09:47:01,016 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 78 states, 78 states have (on average 2.217948717948718) internal successors, (173), 77 states have internal predecessors, (173), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 19 states. [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 30 states. [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 39 states. [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 54 states. [2021-10-25 09:47:01,016 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 09:47:03,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:47:03,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-10-25 09:47:03,472 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-10-25 09:47:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:47:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2021-10-25 09:47:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 09:47:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-10-25 09:47:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-25 09:47:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 09:47:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-10-25 09:47:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 30 states. [2021-10-25 09:47:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 39 states. [2021-10-25 09:47:03,473 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 57 states. [2021-10-25 09:47:03,475 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 69 states. [2021-10-25 09:47:03,497 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2021-10-25 09:47:03,683 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,SelfDestructingSolverStorable13 [2021-10-25 09:47:03,683 INFO L402 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 09:47:03,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 09:47:03,684 INFO L82 PathProgramCache]: Analyzing trace with hash -343172430, now seen corresponding path program 10 times [2021-10-25 09:47:03,684 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 09:47:03,684 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [732200820] [2021-10-25 09:47:03,684 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 09:47:03,684 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 09:47:03,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 09:47:05,526 INFO L134 CoverageAnalysis]: Checked inductivity of 4552 backedges. 0 proven. 3372 refuted. 0 times theorem prover too weak. 1180 trivial. 0 not checked. [2021-10-25 09:47:05,526 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 09:47:05,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [732200820] [2021-10-25 09:47:05,526 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [732200820] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 09:47:05,526 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [519763090] [2021-10-25 09:47:05,527 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-25 09:47:05,527 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 09:47:05,527 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 09:47:05,528 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) [2021-10-25 09:47:05,529 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2021-10-25 09:47:08,102 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-25 09:47:08,103 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 09:47:08,109 WARN L261 TraceCheckSpWp]: Trace formula consists of 584 conjuncts, 409 conjunts are in the unsatisfiable core [2021-10-25 09:47:08,113 INFO L286 TraceCheckSpWp]: Computing forward predicates... Received shutdown request... [2021-10-25 09:55:25,627 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-25 09:55:25,627 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-25 09:55:25,627 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2021-10-25 09:55:25,709 WARN L223 SmtUtils]: Removed 1030 from assertion stack [2021-10-25 09:55:25,712 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-25 09:55:25,740 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2021-10-25 09:55:25,926 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,SelfDestructingSolverStorable14 [2021-10-25 09:55:25,926 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 216 with TraceHistMax 51,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 20453 for 433709ms.. [2021-10-25 09:55:25,928 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-25 09:55:25,928 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-25 09:55:25,933 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-25 09:55:25,933 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-25 09:55:25,935 INFO L202 PluginConnector]: Adding new model send-receive-alt.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 09:55:25 BasicIcfg [2021-10-25 09:55:25,935 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-25 09:55:25,936 INFO L168 Benchmark]: Toolchain (without parser) took 697789.78 ms. Allocated memory was 197.1 MB in the beginning and 714.1 MB in the end (delta: 516.9 MB). Free memory was 155.5 MB in the beginning and 535.1 MB in the end (delta: -379.7 MB). Peak memory consumption was 567.2 MB. Max. memory is 8.0 GB. [2021-10-25 09:55:25,936 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.17 ms. Allocated memory is still 197.1 MB. Free memory is still 156.5 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 09:55:25,936 INFO L168 Benchmark]: Boogie Procedure Inliner took 34.53 ms. Allocated memory is still 197.1 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-25 09:55:25,936 INFO L168 Benchmark]: Boogie Preprocessor took 15.17 ms. Allocated memory is still 197.1 MB. Free memory was 153.9 MB in the beginning and 152.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-25 09:55:25,937 INFO L168 Benchmark]: RCFGBuilder took 208.12 ms. Allocated memory is still 197.1 MB. Free memory was 152.9 MB in the beginning and 140.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-10-25 09:55:25,937 INFO L168 Benchmark]: TraceAbstraction took 697521.98 ms. Allocated memory was 197.1 MB in the beginning and 714.1 MB in the end (delta: 516.9 MB). Free memory was 140.3 MB in the beginning and 535.1 MB in the end (delta: -394.8 MB). Peak memory consumption was 551.5 MB. Max. memory is 8.0 GB. [2021-10-25 09:55:25,938 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 0.17 ms. Allocated memory is still 197.1 MB. Free memory is still 156.5 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 34.53 ms. Allocated memory is still 197.1 MB. Free memory was 155.3 MB in the beginning and 153.9 MB in the end (delta: 1.4 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 15.17 ms. Allocated memory is still 197.1 MB. Free memory was 153.9 MB in the beginning and 152.9 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 208.12 ms. Allocated memory is still 197.1 MB. Free memory was 152.9 MB in the beginning and 140.9 MB in the end (delta: 12.0 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 697521.98 ms. Allocated memory was 197.1 MB in the beginning and 714.1 MB in the end (delta: 516.9 MB). Free memory was 140.3 MB in the beginning and 535.1 MB in the end (delta: -394.8 MB). Peak memory consumption was 551.5 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4881, positive: 2852, positive conditional: 2768, positive unconditional: 84, negative: 2029, negative conditional: 2027, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3218, positive: 2852, positive conditional: 0, positive unconditional: 2852, negative: 366, negative conditional: 0, negative unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 83, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 83, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3218, positive: 2771, positive conditional: 0, positive unconditional: 2771, negative: 364, negative conditional: 0, negative unconditional: 364, unknown: 83, unknown conditional: 0, unknown unconditional: 83] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 1663 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 90, Number of persistent set computation: 22, Number of trivial persistent sets: 19, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 4881, positive: 2852, positive conditional: 2768, positive unconditional: 84, negative: 2029, negative conditional: 2027, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 3218, positive: 2852, positive conditional: 0, positive unconditional: 2852, negative: 366, negative conditional: 0, negative unconditional: 366, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 83, positive: 81, positive conditional: 0, positive unconditional: 81, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 83, positive: 79, positive conditional: 0, positive unconditional: 79, negative: 4, negative conditional: 0, negative unconditional: 4, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 4, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 2, negative conditional: 0, negative unconditional: 2, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 71, positive: 21, positive conditional: 0, positive unconditional: 21, negative: 50, negative conditional: 0, negative unconditional: 50, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 3218, positive: 2771, positive conditional: 0, positive unconditional: 2771, negative: 364, negative conditional: 0, negative unconditional: 364, unknown: 83, unknown conditional: 0, unknown unconditional: 83] , Statistics on independence cache: Total cache size (in pairs): 83, Positive cache size: 81, Positive conditional cache size: 0, Positive unconditional cache size: 81, Negative cache size: 2, Negative conditional cache size: 0, Negative unconditional cache size: 2, Independence queries for same thread: 1663 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 60]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 216 with TraceHistMax 51,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 20453 for 433709ms.. - TimeoutResultAtElement [Line: 55]: 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 216 with TraceHistMax 51,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 20453 for 433709ms.. - TimeoutResultAtElement [Line: 55]: 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 216 with TraceHistMax 51,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 20453 for 433709ms.. - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 28 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 697377.0ms, OverallIterations: 15, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 14.0ms, PartialOrderReductionTime: 6087.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 276, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 87.3ms SsaConstructionTime, 650.3ms SatisfiabilityAnalysisTime, 181771.0ms InterpolantComputationTime, 1209 NumberOfCodeBlocks, 1209 NumberOfCodeBlocksAsserted, 83 NumberOfCheckSat, 1184 ConstructedInterpolants, 26 QuantifiedInterpolants, 90624 SizeOfPredicates, 11 NumberOfNonLiveVariables, 1511 ConjunctsInSsa, 844 ConjunctsInUnsatCore, 25 InterpolantComputations, 3 PerfectInterpolantSequences, 1750/7929 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