/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-820ea7a [2022-02-19 22:06:48,037 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-19 22:06:48,039 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-19 22:06:48,105 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-02-19 22:06:48,118 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-19 22:06:48,118 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-19 22:06:48,119 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-19 22:06:48,120 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-19 22:06:48,120 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-19 22:06:48,120 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-19 22:06:48,121 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-19 22:06:48,122 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-19 22:06:48,123 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-19 22:06:48,125 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-19 22:06:48,126 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-19 22:06:48,127 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-19 22:06:48,135 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2022-02-19 22:06:48,139 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-19 22:06:48,139 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-19 22:06:48,140 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-19 22:06:48,140 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-wrwc.epf [2022-02-19 22:06:48,162 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-19 22:06:48,162 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-19 22:06:48,162 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-19 22:06:48,162 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-19 22:06:48,163 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-19 22:06:48,163 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-19 22:06:48,163 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-19 22:06:48,163 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-19 22:06:48,164 INFO L138 SettingsManager]: * Use SBE=true [2022-02-19 22:06:48,164 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-19 22:06:48,164 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-19 22:06:48,164 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-19 22:06:48,164 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-19 22:06:48,164 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-19 22:06:48,165 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-19 22:06:48,165 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-19 22:06:48,165 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-19 22:06:48,165 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-19 22:06:48,165 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-19 22:06:48,165 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-19 22:06:48,165 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-19 22:06:48,165 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-19 22:06:48,165 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-19 22:06:48,165 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-19 22:06:48,166 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-19 22:06:48,166 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:06:48,166 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-19 22:06:48,166 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-19 22:06:48,167 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-19 22:06:48,167 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-19 22:06:48,167 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-19 22:06:48,167 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-19 22:06:48,167 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-19 22:06:48,167 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-19 22:06:48,167 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-19 22:06:48,167 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-02-19 22:06:48,167 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-02-19 22:06:48,167 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-19 22:06:48,328 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-19 22:06:48,341 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-19 22:06:48,342 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-19 22:06:48,343 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-19 22:06:48,348 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-19 22:06:48,349 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl [2022-02-19 22:06:48,350 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl' [2022-02-19 22:06:48,365 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-19 22:06:48,366 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-19 22:06:48,367 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-19 22:06:48,367 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-19 22:06:48,367 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-19 22:06:48,376 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:48" (1/1) ... [2022-02-19 22:06:48,386 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:48" (1/1) ... [2022-02-19 22:06:48,391 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-19 22:06:48,392 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-19 22:06:48,393 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-19 22:06:48,393 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-19 22:06:48,393 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-19 22:06:48,398 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:48" (1/1) ... [2022-02-19 22:06:48,398 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:48" (1/1) ... [2022-02-19 22:06:48,398 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:48" (1/1) ... [2022-02-19 22:06:48,398 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:48" (1/1) ... [2022-02-19 22:06:48,400 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:48" (1/1) ... [2022-02-19 22:06:48,401 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:48" (1/1) ... [2022-02-19 22:06:48,402 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:48" (1/1) ... [2022-02-19 22:06:48,402 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-19 22:06:48,403 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-19 22:06:48,403 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-19 22:06:48,403 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-19 22:06:48,404 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:48" (1/1) ... [2022-02-19 22:06:48,408 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-19 22:06:48,413 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:06:48,427 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-02-19 22:06:48,433 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-02-19 22:06:48,453 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-19 22:06:48,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-19 22:06:48,453 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-19 22:06:48,453 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-19 22:06:48,453 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-19 22:06:48,454 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-19 22:06:48,454 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-19 22:06:48,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-19 22:06:48,454 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-19 22:06:48,454 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-19 22:06:48,491 INFO L234 CfgBuilder]: Building ICFG [2022-02-19 22:06:48,492 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-19 22:06:48,544 INFO L275 CfgBuilder]: Performing block encoding [2022-02-19 22:06:48,548 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-19 22:06:48,548 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-19 22:06:48,549 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:06:48 BoogieIcfgContainer [2022-02-19 22:06:48,549 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-19 22:06:48,550 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-19 22:06:48,551 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-19 22:06:48,554 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-19 22:06:48,554 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 19.02 10:06:48" (1/2) ... [2022-02-19 22:06:48,555 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@273cf77f and model type loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.02 10:06:48, skipping insertion in model container [2022-02-19 22:06:48,555 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.02 10:06:48" (2/2) ... [2022-02-19 22:06:48,556 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-lockstep-example.bpl [2022-02-19 22:06:48,559 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-19 22:06:48,559 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-19 22:06:48,559 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-19 22:06:48,559 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-19 22:06:48,578 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,579 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,579 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,579 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,579 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,580 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,581 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,581 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,581 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,581 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,582 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,582 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,582 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,582 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,583 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,583 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,583 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,583 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,584 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,586 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,588 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,589 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-02-19 22:06:48,591 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-19 22:06:48,619 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-19 22:06:48,620 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:06:48,621 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2022-02-19 22:06:48,621 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2022-02-19 22:06:48,650 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-19 22:06:48,657 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=false [2022-02-19 22:06:48,657 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-19 22:06:49,227 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 850 transitions and produced 676 states. [2022-02-19 22:06:49,229 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:06:49,236 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:06:49,236 INFO L85 PathProgramCache]: Analyzing trace with hash -641517945, now seen corresponding path program 1 times [2022-02-19 22:06:49,244 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:06:49,244 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [578935097] [2022-02-19 22:06:49,244 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:06:49,245 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:06:49,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:06:50,399 INFO L134 CoverageAnalysis]: Checked inductivity of 4530 backedges. 2023 proven. 2383 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-02-19 22:06:50,399 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:06:50,399 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [578935097] [2022-02-19 22:06:50,400 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [578935097] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:06:50,401 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [181711374] [2022-02-19 22:06:50,401 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:06:50,401 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:06:50,402 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:06:50,403 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 22:06:50,404 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-19 22:06:50,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:06:50,532 INFO L263 TraceCheckSpWp]: Trace formula consists of 535 conjuncts, 63 conjunts are in the unsatisfiable core [2022-02-19 22:06:50,541 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:06:53,350 INFO L134 CoverageAnalysis]: Checked inductivity of 4530 backedges. 1488 proven. 3042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:06:53,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:06:54,247 INFO L134 CoverageAnalysis]: Checked inductivity of 4530 backedges. 2023 proven. 2383 refuted. 0 times theorem prover too weak. 124 trivial. 0 not checked. [2022-02-19 22:06:54,247 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [181711374] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:06:54,248 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:06:54,248 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 64, 33] total 110 [2022-02-19 22:06:54,250 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650568731] [2022-02-19 22:06:54,250 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:06:54,259 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 110 states [2022-02-19 22:06:54,259 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:06:54,278 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 110 interpolants. [2022-02-19 22:06:54,285 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2615, Invalid=9375, Unknown=0, NotChecked=0, Total=11990 [2022-02-19 22:06:54,286 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:06:54,287 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:06:54,291 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 110 states, 110 states have (on average 5.463636363636364) internal successors, (601), 110 states have internal predecessors, (601), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:06:54,291 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:06:58,657 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 860 transitions and produced 770 states. [2022-02-19 22:06:58,658 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:06:58,679 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-19 22:06:58,861 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-19 22:06:58,861 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:06:58,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:06:58,862 INFO L85 PathProgramCache]: Analyzing trace with hash 846936397, now seen corresponding path program 2 times [2022-02-19 22:06:58,862 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:06:58,862 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1700273139] [2022-02-19 22:06:58,862 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:06:58,863 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:06:58,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:07:00,485 INFO L134 CoverageAnalysis]: Checked inductivity of 5752 backedges. 2074 proven. 3678 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:07:00,485 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:07:00,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1700273139] [2022-02-19 22:07:00,485 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1700273139] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:07:00,485 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [214598069] [2022-02-19 22:07:00,486 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 22:07:00,486 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:07:00,486 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:07:00,488 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 22:07:00,488 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-19 22:07:00,593 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 22:07:00,593 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:07:00,607 INFO L263 TraceCheckSpWp]: Trace formula consists of 600 conjuncts, 74 conjunts are in the unsatisfiable core [2022-02-19 22:07:00,614 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:07:03,947 INFO L134 CoverageAnalysis]: Checked inductivity of 5752 backedges. 2069 proven. 3674 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-19 22:07:03,948 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:07:04,562 INFO L134 CoverageAnalysis]: Checked inductivity of 5752 backedges. 2069 proven. 3674 refuted. 0 times theorem prover too weak. 9 trivial. 0 not checked. [2022-02-19 22:07:04,563 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [214598069] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:07:04,563 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:07:04,563 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 75, 75] total 143 [2022-02-19 22:07:04,563 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [686790480] [2022-02-19 22:07:04,564 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:07:04,565 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 143 states [2022-02-19 22:07:04,565 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:07:04,566 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 143 interpolants. [2022-02-19 22:07:04,571 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3639, Invalid=16667, Unknown=0, NotChecked=0, Total=20306 [2022-02-19 22:07:04,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:07:04,571 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:07:04,572 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 143 states, 143 states have (on average 4.314685314685315) internal successors, (617), 143 states have internal predecessors, (617), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:07:04,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:07:04,572 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:07:04,927 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 761 transitions and produced 729 states. [2022-02-19 22:07:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:07:04,927 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:07:04,945 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-19 22:07:05,131 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:07:05,132 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:07:05,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:07:05,132 INFO L85 PathProgramCache]: Analyzing trace with hash -2086034575, now seen corresponding path program 3 times [2022-02-19 22:07:05,132 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:07:05,133 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1618930602] [2022-02-19 22:07:05,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:07:05,133 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:07:05,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:07:06,737 INFO L134 CoverageAnalysis]: Checked inductivity of 5963 backedges. 2074 proven. 3889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:07:06,738 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:07:06,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1618930602] [2022-02-19 22:07:06,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1618930602] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:07:06,738 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1853756239] [2022-02-19 22:07:06,738 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 22:07:06,738 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:07:06,738 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:07:06,739 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 22:07:06,740 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-19 22:07:06,846 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 38 check-sat command(s) [2022-02-19 22:07:06,846 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:07:06,850 INFO L263 TraceCheckSpWp]: Trace formula consists of 611 conjuncts, 77 conjunts are in the unsatisfiable core [2022-02-19 22:07:06,855 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:07:10,214 INFO L134 CoverageAnalysis]: Checked inductivity of 5963 backedges. 2074 proven. 3889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:07:10,215 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:07:10,869 INFO L134 CoverageAnalysis]: Checked inductivity of 5963 backedges. 2074 proven. 3889 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:07:10,870 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1853756239] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:07:10,870 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:07:10,870 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78, 78] total 149 [2022-02-19 22:07:10,870 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [484143831] [2022-02-19 22:07:10,879 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:07:10,880 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 149 states [2022-02-19 22:07:10,880 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:07:10,881 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 149 interpolants. [2022-02-19 22:07:10,886 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3952, Invalid=18100, Unknown=0, NotChecked=0, Total=22052 [2022-02-19 22:07:10,886 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:07:10,887 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:07:10,888 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 149 states, 149 states have (on average 4.355704697986577) internal successors, (649), 149 states have internal predecessors, (649), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:07:10,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:07:10,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:07:10,888 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:07:11,280 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 787 transitions and produced 755 states. [2022-02-19 22:07:11,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:07:11,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:07:11,281 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:07:11,300 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-19 22:07:11,485 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:07:11,486 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:07:11,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:07:11,486 INFO L85 PathProgramCache]: Analyzing trace with hash 1183659705, now seen corresponding path program 4 times [2022-02-19 22:07:11,486 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:07:11,486 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1643894437] [2022-02-19 22:07:11,487 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:07:11,487 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:07:11,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:07:19,042 INFO L134 CoverageAnalysis]: Checked inductivity of 6403 backedges. 0 proven. 6397 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:07:19,042 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:07:19,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1643894437] [2022-02-19 22:07:19,042 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1643894437] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:07:19,042 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [681795359] [2022-02-19 22:07:19,042 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 22:07:19,043 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:07:19,043 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:07:19,068 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 22:07:19,068 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-19 22:07:19,173 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 22:07:19,173 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:07:19,182 WARN L261 TraceCheckSpWp]: Trace formula consists of 633 conjuncts, 383 conjunts are in the unsatisfiable core [2022-02-19 22:07:19,187 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:07:20,296 INFO L134 CoverageAnalysis]: Checked inductivity of 6403 backedges. 0 proven. 6397 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:07:20,296 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:07:21,411 INFO L134 CoverageAnalysis]: Checked inductivity of 6403 backedges. 0 proven. 6397 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:07:21,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [681795359] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:07:21,411 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:07:21,411 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [149, 149, 149] total 149 [2022-02-19 22:07:21,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2108081041] [2022-02-19 22:07:21,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:07:21,412 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 151 states [2022-02-19 22:07:21,412 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:07:21,413 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 151 interpolants. [2022-02-19 22:07:21,415 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=299, Invalid=22351, Unknown=0, NotChecked=0, Total=22650 [2022-02-19 22:07:21,415 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:07:21,415 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:07:21,416 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 151 states, 150 states have (on average 2.32) internal successors, (348), 150 states have internal predecessors, (348), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:07:21,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:07:21,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:07:21,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:07:21,416 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:07:27,991 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1162 transitions and produced 1130 states. [2022-02-19 22:07:27,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:07:27,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:07:27,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:07:27,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:07:28,009 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2022-02-19 22:07:28,192 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:07:28,192 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:07:28,193 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:07:28,193 INFO L85 PathProgramCache]: Analyzing trace with hash 1623167931, now seen corresponding path program 5 times [2022-02-19 22:07:28,193 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:07:28,193 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1730939152] [2022-02-19 22:07:28,193 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:07:28,193 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:07:28,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:07:30,900 INFO L134 CoverageAnalysis]: Checked inductivity of 15480 backedges. 6524 proven. 8956 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:07:30,901 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:07:30,901 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1730939152] [2022-02-19 22:07:30,901 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1730939152] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:07:30,903 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [841095619] [2022-02-19 22:07:30,903 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 22:07:30,904 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:07:30,904 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:07:30,905 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 22:07:30,905 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-02-19 22:07:31,085 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 68 check-sat command(s) [2022-02-19 22:07:31,085 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:07:31,103 INFO L263 TraceCheckSpWp]: Trace formula consists of 952 conjuncts, 108 conjunts are in the unsatisfiable core [2022-02-19 22:07:31,112 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:07:35,556 INFO L134 CoverageAnalysis]: Checked inductivity of 15480 backedges. 12936 proven. 2544 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:07:35,556 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:07:40,046 INFO L134 CoverageAnalysis]: Checked inductivity of 15480 backedges. 6524 proven. 8956 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:07:40,046 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [841095619] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:07:40,047 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:07:40,047 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [109, 109, 109] total 261 [2022-02-19 22:07:40,047 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411503089] [2022-02-19 22:07:40,047 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:07:40,048 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 261 states [2022-02-19 22:07:40,048 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:07:40,051 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 261 interpolants. [2022-02-19 22:07:40,056 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=12746, Invalid=55114, Unknown=0, NotChecked=0, Total=67860 [2022-02-19 22:07:40,056 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:07:40,056 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:07:40,057 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 261 states, 261 states have (on average 4.793103448275862) internal successors, (1251), 261 states have internal predecessors, (1251), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:07:40,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:07:40,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:07:40,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:07:40,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:07:40,057 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:07:53,814 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1663 transitions and produced 1452 states. [2022-02-19 22:07:53,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:07:53,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:07:53,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:07:53,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:07:53,814 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 22:07:53,832 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-02-19 22:07:54,015 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4,7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:07:54,016 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:07:54,016 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:07:54,016 INFO L85 PathProgramCache]: Analyzing trace with hash -645349843, now seen corresponding path program 6 times [2022-02-19 22:07:54,016 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:07:54,016 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [216157418] [2022-02-19 22:07:54,016 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:07:54,017 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:07:54,295 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:08:16,103 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:08:16,103 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:08:16,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [216157418] [2022-02-19 22:08:16,104 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [216157418] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:08:16,104 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1805836318] [2022-02-19 22:08:16,104 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 22:08:16,104 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:08:16,104 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:08:16,110 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 22:08:16,110 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-02-19 22:08:16,327 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 68 check-sat command(s) [2022-02-19 22:08:16,327 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:08:16,343 WARN L261 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 673 conjunts are in the unsatisfiable core [2022-02-19 22:08:16,350 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:08:18,179 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:08:18,179 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:08:19,909 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:08:19,910 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1805836318] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:08:19,910 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:08:19,910 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [265, 265, 265] total 265 [2022-02-19 22:08:19,910 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [977325789] [2022-02-19 22:08:19,910 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:08:19,911 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 267 states [2022-02-19 22:08:19,911 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:08:19,912 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 267 interpolants. [2022-02-19 22:08:19,914 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=70491, Unknown=0, NotChecked=0, Total=71022 [2022-02-19 22:08:19,914 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:08:19,914 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:08:19,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 267 states, 266 states have (on average 2.289473684210526) internal successors, (609), 266 states have internal predecessors, (609), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:08:19,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:08:19,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:08:19,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:08:19,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:08:19,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 22:08:19,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:08:39,339 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1738 transitions and produced 1678 states. [2022-02-19 22:08:39,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:08:39,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:08:39,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:08:39,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:08:39,340 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 22:08:39,348 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-02-19 22:08:39,366 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Forceful destruction successful, exit code 0 [2022-02-19 22:08:39,548 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:08:39,549 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:08:39,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:08:39,550 INFO L85 PathProgramCache]: Analyzing trace with hash 315216363, now seen corresponding path program 7 times [2022-02-19 22:08:39,550 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:08:39,551 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [61328020] [2022-02-19 22:08:39,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:08:39,551 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:08:40,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:08:45,689 INFO L134 CoverageAnalysis]: Checked inductivity of 34156 backedges. 15601 proven. 18555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:08:45,689 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:08:45,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [61328020] [2022-02-19 22:08:45,689 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [61328020] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:08:45,689 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [587860913] [2022-02-19 22:08:45,690 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-02-19 22:08:45,690 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:08:45,690 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:08:45,691 INFO L229 MonitoredProcess]: Starting monitored process 9 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 22:08:45,693 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-02-19 22:08:45,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:08:45,885 INFO L263 TraceCheckSpWp]: Trace formula consists of 1416 conjuncts, 166 conjunts are in the unsatisfiable core [2022-02-19 22:08:45,895 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:08:53,952 INFO L134 CoverageAnalysis]: Checked inductivity of 34156 backedges. 26885 proven. 7271 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:08:53,953 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:09:00,326 INFO L134 CoverageAnalysis]: Checked inductivity of 34156 backedges. 15601 proven. 18555 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:09:00,326 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [587860913] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:09:00,326 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:09:00,327 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [167, 167, 167] total 348 [2022-02-19 22:09:00,327 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [306563433] [2022-02-19 22:09:00,327 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:09:00,328 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 348 states [2022-02-19 22:09:00,328 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:09:00,331 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 348 interpolants. [2022-02-19 22:09:00,339 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=22374, Invalid=98382, Unknown=0, NotChecked=0, Total=120756 [2022-02-19 22:09:00,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:09:00,339 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:09:00,340 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 348 states, 348 states have (on average 4.594827586206897) internal successors, (1599), 348 states have internal predecessors, (1599), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:09:00,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:09:00,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:09:00,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:09:00,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:09:00,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 22:09:00,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-02-19 22:09:00,341 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:09:24,024 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2243 transitions and produced 2004 states. [2022-02-19 22:09:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:09:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:09:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:09:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:09:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 22:09:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-02-19 22:09:24,025 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-02-19 22:09:24,045 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Forceful destruction successful, exit code 0 [2022-02-19 22:09:24,226 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 9 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable6 [2022-02-19 22:09:24,226 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:09:24,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:09:24,227 INFO L85 PathProgramCache]: Analyzing trace with hash -445910303, now seen corresponding path program 8 times [2022-02-19 22:09:24,227 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:09:24,227 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [863896210] [2022-02-19 22:09:24,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:09:24,227 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:09:24,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:10:09,037 INFO L134 CoverageAnalysis]: Checked inductivity of 41232 backedges. 0 proven. 41226 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:10:09,037 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:10:09,037 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [863896210] [2022-02-19 22:10:09,037 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [863896210] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:10:09,037 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1088572500] [2022-02-19 22:10:09,037 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-19 22:10:09,038 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:10:09,038 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:10:09,039 INFO L229 MonitoredProcess]: Starting monitored process 10 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 22:10:09,039 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-02-19 22:10:09,247 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-19 22:10:09,248 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:10:09,266 WARN L261 TraceCheckSpWp]: Trace formula consists of 1561 conjuncts, 963 conjunts are in the unsatisfiable core [2022-02-19 22:10:09,275 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:10:11,697 INFO L134 CoverageAnalysis]: Checked inductivity of 41232 backedges. 0 proven. 41226 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:10:11,697 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:10:14,143 INFO L134 CoverageAnalysis]: Checked inductivity of 41232 backedges. 0 proven. 41226 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:10:14,143 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1088572500] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:10:14,143 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:10:14,144 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [381, 381, 381] total 381 [2022-02-19 22:10:14,144 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315821330] [2022-02-19 22:10:14,144 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:10:14,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 383 states [2022-02-19 22:10:14,145 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:10:14,146 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 383 interpolants. [2022-02-19 22:10:14,150 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=763, Invalid=145543, Unknown=0, NotChecked=0, Total=146306 [2022-02-19 22:10:14,150 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:10:14,150 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:10:14,151 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 383 states, 382 states have (on average 2.277486910994764) internal successors, (870), 382 states have internal predecessors, (870), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:10:14,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:10:14,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:10:14,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:10:14,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:10:14,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 22:10:14,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-02-19 22:10:14,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-02-19 22:10:14,151 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:10:54,220 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2318 transitions and produced 2230 states. [2022-02-19 22:10:54,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:10:54,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:10:54,220 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:10:54,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:10:54,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 22:10:54,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-02-19 22:10:54,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-02-19 22:10:54,221 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-02-19 22:10:54,239 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-02-19 22:10:54,423 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7,10 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:10:54,424 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:10:54,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:10:54,424 INFO L85 PathProgramCache]: Analyzing trace with hash -2076150173, now seen corresponding path program 9 times [2022-02-19 22:10:54,424 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:10:54,425 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1735181726] [2022-02-19 22:10:54,425 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:10:54,425 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:10:55,403 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:11:05,779 INFO L134 CoverageAnalysis]: Checked inductivity of 60401 backedges. 29724 proven. 30677 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:11:05,780 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:11:05,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1735181726] [2022-02-19 22:11:05,780 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1735181726] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:11:05,780 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1530898439] [2022-02-19 22:11:05,780 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-19 22:11:05,780 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:11:05,780 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:11:05,782 INFO L229 MonitoredProcess]: Starting monitored process 11 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 22:11:05,783 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-02-19 22:11:06,571 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 126 check-sat command(s) [2022-02-19 22:11:06,572 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:11:06,601 INFO L263 TraceCheckSpWp]: Trace formula consists of 1880 conjuncts, 224 conjunts are in the unsatisfiable core [2022-02-19 22:11:06,611 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:11:19,350 INFO L134 CoverageAnalysis]: Checked inductivity of 60401 backedges. 45880 proven. 14521 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:11:19,350 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:11:27,507 INFO L134 CoverageAnalysis]: Checked inductivity of 60401 backedges. 29724 proven. 30677 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:11:27,507 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1530898439] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:11:27,507 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:11:27,508 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [225, 225, 225] total 435 [2022-02-19 22:11:27,508 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2028991306] [2022-02-19 22:11:27,508 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:11:27,509 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 435 states [2022-02-19 22:11:27,509 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:11:27,514 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 435 interpolants. [2022-02-19 22:11:27,521 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=35366, Invalid=153424, Unknown=0, NotChecked=0, Total=188790 [2022-02-19 22:11:27,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:11:27,522 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:11:27,523 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 435 states, 435 states have (on average 4.475862068965517) internal successors, (1947), 435 states have internal predecessors, (1947), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:11:27,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:11:27,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:11:27,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:11:27,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:11:27,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 22:11:27,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-02-19 22:11:27,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-02-19 22:11:27,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 383 states. [2022-02-19 22:11:27,523 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:12:12,964 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2823 transitions and produced 2556 states. [2022-02-19 22:12:12,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:12:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:12:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:12:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:12:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 22:12:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-02-19 22:12:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-02-19 22:12:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-02-19 22:12:12,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 422 states. [2022-02-19 22:12:12,986 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-02-19 22:12:13,165 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 11 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable8 [2022-02-19 22:12:13,166 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:12:13,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:12:13,166 INFO L85 PathProgramCache]: Analyzing trace with hash -1843659259, now seen corresponding path program 10 times [2022-02-19 22:12:13,167 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:12:13,167 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2109506916] [2022-02-19 22:12:13,167 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:12:13,167 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:12:14,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:13:28,585 INFO L134 CoverageAnalysis]: Checked inductivity of 70000 backedges. 0 proven. 69994 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:13:28,586 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:13:28,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2109506916] [2022-02-19 22:13:28,586 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2109506916] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:13:28,586 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [662955617] [2022-02-19 22:13:28,586 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-19 22:13:28,586 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:13:28,587 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:13:28,588 INFO L229 MonitoredProcess]: Starting monitored process 12 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 22:13:28,588 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-02-19 22:13:28,866 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-19 22:13:28,866 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:13:28,892 WARN L261 TraceCheckSpWp]: Trace formula consists of 2025 conjuncts, 1253 conjunts are in the unsatisfiable core [2022-02-19 22:13:28,904 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:13:32,381 INFO L134 CoverageAnalysis]: Checked inductivity of 70000 backedges. 0 proven. 69994 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:13:32,381 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:13:36,188 INFO L134 CoverageAnalysis]: Checked inductivity of 70000 backedges. 0 proven. 69994 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:13:36,188 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [662955617] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:13:36,188 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:13:36,189 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [497, 497, 497] total 497 [2022-02-19 22:13:36,189 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [372613591] [2022-02-19 22:13:36,189 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:13:36,190 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 499 states [2022-02-19 22:13:36,190 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:13:36,191 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 499 interpolants. [2022-02-19 22:13:36,199 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=995, Invalid=247507, Unknown=0, NotChecked=0, Total=248502 [2022-02-19 22:13:36,199 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:13:36,199 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:13:36,200 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 499 states, 498 states have (on average 2.2710843373493974) internal successors, (1131), 498 states have internal predecessors, (1131), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:13:36,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:13:36,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:13:36,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:13:36,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:13:36,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 22:13:36,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-02-19 22:13:36,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-02-19 22:13:36,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 383 states. [2022-02-19 22:13:36,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 422 states. [2022-02-19 22:13:36,200 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:14:43,800 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2898 transitions and produced 2782 states. [2022-02-19 22:14:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:14:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:14:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:14:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:14:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 22:14:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-02-19 22:14:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-02-19 22:14:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-02-19 22:14:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 422 states. [2022-02-19 22:14:43,801 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 499 states. [2022-02-19 22:14:43,820 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-02-19 22:14:44,019 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 12 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable9 [2022-02-19 22:14:44,019 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:14:44,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:14:44,023 INFO L85 PathProgramCache]: Analyzing trace with hash -1259611325, now seen corresponding path program 11 times [2022-02-19 22:14:44,023 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:14:44,023 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [321162392] [2022-02-19 22:14:44,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:14:44,023 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:14:45,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:15:02,169 INFO L134 CoverageAnalysis]: Checked inductivity of 94215 backedges. 48893 proven. 45322 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:15:02,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:15:02,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [321162392] [2022-02-19 22:15:02,170 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [321162392] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:15:02,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [872869146] [2022-02-19 22:15:02,170 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-02-19 22:15:02,170 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:15:02,170 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:15:02,171 INFO L229 MonitoredProcess]: Starting monitored process 13 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 22:15:02,172 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-02-19 22:15:03,123 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 155 check-sat command(s) [2022-02-19 22:15:03,123 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:15:03,281 INFO L263 TraceCheckSpWp]: Trace formula consists of 2344 conjuncts, 282 conjunts are in the unsatisfiable core [2022-02-19 22:15:03,293 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:15:21,703 INFO L134 CoverageAnalysis]: Checked inductivity of 94215 backedges. 69921 proven. 24294 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:15:21,704 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-19 22:15:31,636 INFO L134 CoverageAnalysis]: Checked inductivity of 94215 backedges. 48893 proven. 45322 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-19 22:15:31,637 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [872869146] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-19 22:15:31,637 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-19 22:15:31,637 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [283, 283, 283] total 522 [2022-02-19 22:15:31,637 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124102522] [2022-02-19 22:15:31,637 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-19 22:15:31,639 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 522 states [2022-02-19 22:15:31,639 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-19 22:15:31,647 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 522 interpolants. [2022-02-19 22:15:31,664 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=51722, Invalid=220240, Unknown=0, NotChecked=0, Total=271962 [2022-02-19 22:15:31,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:15:31,664 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-19 22:15:31,666 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 522 states, 522 states have (on average 4.396551724137931) internal successors, (2295), 522 states have internal predecessors, (2295), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-02-19 22:15:31,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:15:31,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:15:31,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:15:31,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:15:31,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 306 states. [2022-02-19 22:15:31,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-02-19 22:15:31,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 364 states. [2022-02-19 22:15:31,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 383 states. [2022-02-19 22:15:31,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 422 states. [2022-02-19 22:15:31,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 499 states. [2022-02-19 22:15:31,666 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-19 22:16:46,253 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3403 transitions and produced 3108 states. [2022-02-19 22:16:46,254 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 137 states. [2022-02-19 22:16:46,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-02-19 22:16:46,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2022-02-19 22:16:46,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 151 states. [2022-02-19 22:16:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 306 states. [2022-02-19 22:16:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-02-19 22:16:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 364 states. [2022-02-19 22:16:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 383 states. [2022-02-19 22:16:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 422 states. [2022-02-19 22:16:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 499 states. [2022-02-19 22:16:46,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 480 states. [2022-02-19 22:16:46,285 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-02-19 22:16:46,463 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 13 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable10 [2022-02-19 22:16:46,464 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-19 22:16:46,464 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-19 22:16:46,464 INFO L85 PathProgramCache]: Analyzing trace with hash -558573815, now seen corresponding path program 12 times [2022-02-19 22:16:46,465 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-19 22:16:46,465 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1635193571] [2022-02-19 22:16:46,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-19 22:16:46,465 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-19 22:16:48,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-19 22:18:40,253 INFO L134 CoverageAnalysis]: Checked inductivity of 106337 backedges. 0 proven. 106331 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-02-19 22:18:40,254 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-19 22:18:40,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1635193571] [2022-02-19 22:18:40,254 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1635193571] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-19 22:18:40,254 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1976843069] [2022-02-19 22:18:40,254 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-02-19 22:18:40,254 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-19 22:18:40,254 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-19 22:18:40,255 INFO L229 MonitoredProcess]: Starting monitored process 14 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-19 22:18:40,256 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process Received shutdown request... [2022-02-19 22:18:41,191 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 155 check-sat command(s) [2022-02-19 22:18:41,191 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-19 22:18:41,198 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 22:18:41,200 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-19 22:18:41,207 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 [2022-02-19 22:18:41,252 WARN L261 TraceCheckSpWp]: Trace formula consists of 2489 conjuncts, 1543 conjunts are in the unsatisfiable core [2022-02-19 22:18:41,264 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-19 22:18:41,265 WARN L244 SmtUtils]: Removed 2 from assertion stack [2022-02-19 22:18:41,268 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-19 22:18:41,292 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Ended with exit code 0 [2022-02-19 22:18:41,483 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 14 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable11 [2022-02-19 22:18:41,483 WARN L594 AbstractCegarLoop]: Verification canceled: while PartialOrderCegarLoop was analyzing trace of length 1399 with TraceHistMax 154,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 0ms.. [2022-02-19 22:18:41,485 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-19 22:18:41,485 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-19 22:18:41,489 INFO L732 BasicCegarLoop]: Path program histogram: [12] [2022-02-19 22:18:41,491 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-19 22:18:41,491 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-19 22:18:41,493 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.02 10:18:41 BasicIcfg [2022-02-19 22:18:41,493 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-19 22:18:41,493 INFO L158 Benchmark]: Toolchain (without parser) took 713127.07ms. Allocated memory was 189.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 154.0MB in the beginning and 465.8MB in the end (delta: -311.8MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-02-19 22:18:41,493 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.09ms. Allocated memory is still 189.8MB. Free memory is still 155.0MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-19 22:18:41,494 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.01ms. Allocated memory is still 189.8MB. Free memory was 153.9MB in the beginning and 152.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-02-19 22:18:41,494 INFO L158 Benchmark]: Boogie Preprocessor took 9.70ms. Allocated memory is still 189.8MB. Free memory was 152.3MB in the beginning and 151.4MB in the end (delta: 903.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-19 22:18:41,494 INFO L158 Benchmark]: RCFGBuilder took 146.45ms. Allocated memory is still 189.8MB. Free memory was 151.4MB in the beginning and 142.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-19 22:18:41,494 INFO L158 Benchmark]: TraceAbstraction took 712942.53ms. Allocated memory was 189.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 142.0MB in the beginning and 465.8MB in the end (delta: -323.9MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. [2022-02-19 22:18:41,495 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 0.09ms. Allocated memory is still 189.8MB. Free memory is still 155.0MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.01ms. Allocated memory is still 189.8MB. Free memory was 153.9MB in the beginning and 152.5MB in the end (delta: 1.5MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 9.70ms. Allocated memory is still 189.8MB. Free memory was 152.3MB in the beginning and 151.4MB in the end (delta: 903.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 146.45ms. Allocated memory is still 189.8MB. Free memory was 151.4MB in the beginning and 142.4MB in the end (delta: 9.0MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 712942.53ms. Allocated memory was 189.8MB in the beginning and 1.7GB in the end (delta: 1.5GB). Free memory was 142.0MB in the beginning and 465.8MB in the end (delta: -323.9MB). Peak memory consumption was 1.2GB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 47]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PartialOrderCegarLoop was analyzing trace of length 1399 with TraceHistMax 154,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 0ms.. - TimeoutResultAtElement [Line: 43]: 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 1399 with TraceHistMax 154,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 0ms.. - TimeoutResultAtElement [Line: 43]: 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 1399 with TraceHistMax 154,while TraceCheckSpWp was constructing forward predicates,while SimplifyDDAWithTimeout was simplifying term of DAG size 3 for 0ms.. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 41 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 712.9s, OverallIterations: 12, TraceHistogramMax: 0, PathProgramHistogramMax: 12, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 296.8s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3047, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.4s SsaConstructionTime, 8.8s SatisfiabilityAnalysisTime, 288.8s InterpolantComputationTime, 15270 NumberOfCodeBlocks, 15270 NumberOfCodeBlocksAsserted, 474 NumberOfCheckSat, 22872 ConstructedInterpolants, 0 QuantifiedInterpolants, 125334 SizeOfPredicates, 28 NumberOfNonLiveVariables, 13654 ConjunctsInSsa, 4266 ConjunctsInUnsatCore, 33 InterpolantComputations, 0 PerfectInterpolantSequences, 375412/1074495 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