/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-16 05:45:17,887 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-16 05:45:17,888 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-16 05:45:17,921 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-16 05:45:17,922 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-16 05:45:17,923 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-16 05:45:17,924 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-16 05:45:17,925 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-16 05:45:17,926 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-16 05:45:17,932 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-16 05:45:17,932 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-16 05:45:17,934 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-03-16 05:45:17,960 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-MCRwithDepranks-Lazy-NoForkJoinOpt-wrwc.epf [2022-03-16 05:45:17,978 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-16 05:45:17,978 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-16 05:45:17,978 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-16 05:45:17,978 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-16 05:45:17,983 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-16 05:45:17,983 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-16 05:45:17,984 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-16 05:45:17,984 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-16 05:45:17,984 INFO L138 SettingsManager]: * Use SBE=true [2022-03-16 05:45:17,984 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-16 05:45:17,984 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-16 05:45:17,985 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-16 05:45:17,985 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-16 05:45:17,985 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-16 05:45:17,985 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-16 05:45:17,985 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-16 05:45:17,985 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-16 05:45:17,985 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-16 05:45:17,985 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-16 05:45:17,985 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-16 05:45:17,985 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-16 05:45:17,986 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-16 05:45:17,986 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-16 05:45:17,986 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-16 05:45:17,986 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-16 05:45:17,986 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 05:45:17,986 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-16 05:45:17,986 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-03-16 05:45:17,987 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-16 05:45:17,987 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-16 05:45:17,987 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-16 05:45:17,987 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-16 05:45:17,987 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-16 05:45:17,987 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-03-16 05:45:17,987 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-16 05:45:17,987 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-03-16 05:45:17,988 INFO L138 SettingsManager]: * MCR: Overapproximate write-read-write conflicts=false [2022-03-16 05:45:17,988 INFO L138 SettingsManager]: * MCR: Optimize fork and join=false [2022-03-16 05:45:17,988 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-16 05:45:18,201 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-16 05:45:18,216 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-16 05:45:18,218 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-16 05:45:18,218 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-16 05:45:18,221 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-16 05:45:18,222 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl [2022-03-16 05:45:18,222 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/loop-lockstep-example.bpl' [2022-03-16 05:45:18,248 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-16 05:45:18,249 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-16 05:45:18,250 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-16 05:45:18,250 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-16 05:45:18,250 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-16 05:45:18,261 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 16.03 05:45:18" (1/1) ... [2022-03-16 05:45:18,270 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 16.03 05:45:18" (1/1) ... [2022-03-16 05:45:18,276 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-16 05:45:18,277 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-16 05:45:18,279 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-16 05:45:18,279 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-16 05:45:18,279 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-16 05:45:18,285 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 05:45:18" (1/1) ... [2022-03-16 05:45:18,285 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 05:45:18" (1/1) ... [2022-03-16 05:45:18,286 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 05:45:18" (1/1) ... [2022-03-16 05:45:18,286 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 05:45:18" (1/1) ... [2022-03-16 05:45:18,288 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 05:45:18" (1/1) ... [2022-03-16 05:45:18,290 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 05:45:18" (1/1) ... [2022-03-16 05:45:18,291 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 05:45:18" (1/1) ... [2022-03-16 05:45:18,292 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-16 05:45:18,293 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-16 05:45:18,293 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-16 05:45:18,293 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-16 05:45:18,294 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 05:45:18" (1/1) ... [2022-03-16 05:45:18,300 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-16 05:45:18,309 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:45:18,333 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) [2022-03-16 05:45:18,359 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 [2022-03-16 05:45:18,379 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-16 05:45:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-16 05:45:18,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-16 05:45:18,380 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-16 05:45:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-16 05:45:18,380 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-16 05:45:18,380 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-16 05:45:18,380 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-16 05:45:18,380 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-16 05:45:18,381 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-16 05:45:18,424 INFO L234 CfgBuilder]: Building ICFG [2022-03-16 05:45:18,426 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-16 05:45:18,541 INFO L275 CfgBuilder]: Performing block encoding [2022-03-16 05:45:18,547 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-16 05:45:18,548 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-16 05:45:18,551 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 05:45:18 BoogieIcfgContainer [2022-03-16 05:45:18,551 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-16 05:45:18,554 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-16 05:45:18,554 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-16 05:45:18,557 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-16 05:45:18,557 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 16.03 05:45:18" (1/2) ... [2022-03-16 05:45:18,560 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@57eaa8e5 and model type loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.03 05:45:18, skipping insertion in model container [2022-03-16 05:45:18,560 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.03 05:45:18" (2/2) ... [2022-03-16 05:45:18,562 INFO L111 eAbstractionObserver]: Analyzing ICFG loop-lockstep-example.bpl [2022-03-16 05:45:18,577 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-16 05:45:18,577 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-16 05:45:18,577 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-16 05:45:18,577 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-16 05:45:18,597 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,597 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,597 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,598 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,599 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,599 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,604 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,604 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,605 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,605 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,606 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,606 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,607 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,608 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,609 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,610 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,610 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,611 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,611 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,611 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,621 WARN L322 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_i not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,623 WARN L322 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_j not constructed by VariableManager. Cannot ensure absence of name clashes. [2022-03-16 05:45:18,624 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-16 05:45:18,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-03-16 05:45:18,667 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:45:18,669 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) [2022-03-16 05:45:18,672 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 [2022-03-16 05:45:18,730 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-16 05:45:18,751 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=false, mMcrOverapproximateWrwc=false [2022-03-16 05:45:18,751 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-16 05:45:19,149 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 664 transitions and produced 549 states. [2022-03-16 05:45:19,151 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:45:19,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:45:19,156 INFO L85 PathProgramCache]: Analyzing trace with hash -482847489, now seen corresponding path program 1 times [2022-03-16 05:45:19,162 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:45:19,162 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2032981427] [2022-03-16 05:45:19,162 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:45:19,163 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:45:19,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:45:20,169 INFO L134 CoverageAnalysis]: Checked inductivity of 3068 backedges. 1666 proven. 1325 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-03-16 05:45:20,170 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:45:20,170 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2032981427] [2022-03-16 05:45:20,171 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2032981427] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:45:20,171 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1142709538] [2022-03-16 05:45:20,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:45:20,172 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:45:20,172 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:45:20,187 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) [2022-03-16 05:45:20,222 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-03-16 05:45:20,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:45:20,391 INFO L263 TraceCheckSpWp]: Trace formula consists of 431 conjuncts, 47 conjunts are in the unsatisfiable core [2022-03-16 05:45:20,412 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:45:22,794 INFO L134 CoverageAnalysis]: Checked inductivity of 3068 backedges. 1328 proven. 1740 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:45:22,794 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:45:23,761 INFO L134 CoverageAnalysis]: Checked inductivity of 3068 backedges. 1666 proven. 1325 refuted. 0 times theorem prover too weak. 77 trivial. 0 not checked. [2022-03-16 05:45:23,762 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1142709538] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:45:23,762 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:45:23,762 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [33, 48, 33] total 102 [2022-03-16 05:45:23,766 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [493932801] [2022-03-16 05:45:23,766 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:45:23,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 102 states [2022-03-16 05:45:23,779 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:45:23,800 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 102 interpolants. [2022-03-16 05:45:23,806 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2520, Invalid=7782, Unknown=0, NotChecked=0, Total=10302 [2022-03-16 05:45:23,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:45:23,810 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:45:23,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 102 states, 102 states have (on average 5.431372549019608) internal successors, (554), 102 states have internal predecessors, (554), 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) [2022-03-16 05:45:23,815 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:45:28,138 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 916 transitions and produced 798 states. [2022-03-16 05:45:28,139 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:45:28,163 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2022-03-16 05:45:28,359 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 [2022-03-16 05:45:28,360 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:45:28,361 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:45:28,361 INFO L85 PathProgramCache]: Analyzing trace with hash -234927907, now seen corresponding path program 2 times [2022-03-16 05:45:28,361 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:45:28,361 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [210585012] [2022-03-16 05:45:28,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:45:28,362 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:45:28,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:45:30,230 INFO L134 CoverageAnalysis]: Checked inductivity of 5446 backedges. 2544 proven. 2902 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:45:30,230 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:45:30,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [210585012] [2022-03-16 05:45:30,231 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [210585012] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:45:30,231 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1690910424] [2022-03-16 05:45:30,231 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 05:45:30,231 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:45:30,232 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:45:30,238 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) [2022-03-16 05:45:30,244 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-03-16 05:45:30,402 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 05:45:30,403 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 05:45:30,408 INFO L263 TraceCheckSpWp]: Trace formula consists of 576 conjuncts, 66 conjunts are in the unsatisfiable core [2022-03-16 05:45:30,416 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:45:33,061 INFO L134 CoverageAnalysis]: Checked inductivity of 5446 backedges. 2399 proven. 2882 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-03-16 05:45:33,062 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:45:33,670 INFO L134 CoverageAnalysis]: Checked inductivity of 5446 backedges. 2399 proven. 2882 refuted. 0 times theorem prover too weak. 165 trivial. 0 not checked. [2022-03-16 05:45:33,671 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1690910424] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:45:33,671 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:45:33,672 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [77, 67, 67] total 135 [2022-03-16 05:45:33,672 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1894189754] [2022-03-16 05:45:33,672 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:45:33,673 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 135 states [2022-03-16 05:45:33,673 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:45:33,674 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 135 interpolants. [2022-03-16 05:45:33,680 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3175, Invalid=14915, Unknown=0, NotChecked=0, Total=18090 [2022-03-16 05:45:33,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:45:33,681 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:45:33,682 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 135 states, 135 states have (on average 4.214814814814815) internal successors, (569), 135 states have internal predecessors, (569), 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) [2022-03-16 05:45:33,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:45:33,682 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:45:33,966 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 737 transitions and produced 717 states. [2022-03-16 05:45:33,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:45:33,967 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:45:33,986 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2022-03-16 05:45:34,185 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 [2022-03-16 05:45:34,186 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:45:34,186 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:45:34,187 INFO L85 PathProgramCache]: Analyzing trace with hash -1358903039, now seen corresponding path program 3 times [2022-03-16 05:45:34,187 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:45:34,187 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [205377027] [2022-03-16 05:45:34,187 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:45:34,187 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:45:34,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:45:36,151 INFO L134 CoverageAnalysis]: Checked inductivity of 5633 backedges. 2544 proven. 3089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:45:36,151 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:45:36,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [205377027] [2022-03-16 05:45:36,152 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [205377027] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:45:36,152 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1049532783] [2022-03-16 05:45:36,152 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 05:45:36,152 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:45:36,152 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:45:36,157 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) [2022-03-16 05:45:36,158 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-03-16 05:45:36,274 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 42 check-sat command(s) [2022-03-16 05:45:36,274 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 05:45:36,279 INFO L263 TraceCheckSpWp]: Trace formula consists of 587 conjuncts, 77 conjunts are in the unsatisfiable core [2022-03-16 05:45:36,284 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:45:39,516 INFO L134 CoverageAnalysis]: Checked inductivity of 5633 backedges. 2544 proven. 3089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:45:39,516 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:45:41,258 INFO L134 CoverageAnalysis]: Checked inductivity of 5633 backedges. 2544 proven. 3089 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:45:41,259 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1049532783] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:45:41,259 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:45:41,259 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [78, 78, 78] total 172 [2022-03-16 05:45:41,259 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [675062471] [2022-03-16 05:45:41,260 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:45:41,260 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 172 states [2022-03-16 05:45:41,260 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:45:41,262 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 172 interpolants. [2022-03-16 05:45:41,268 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5436, Invalid=23976, Unknown=0, NotChecked=0, Total=29412 [2022-03-16 05:45:41,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:45:41,268 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:45:41,269 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 172 states, 172 states have (on average 4.284883720930233) internal successors, (737), 172 states have internal predecessors, (737), 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) [2022-03-16 05:45:41,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:45:41,269 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:45:41,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:45:41,680 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 854 transitions and produced 834 states. [2022-03-16 05:45:41,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:45:41,680 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:45:41,681 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:45:41,720 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Ended with exit code 0 [2022-03-16 05:45:41,895 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 [2022-03-16 05:45:41,896 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:45:41,897 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:45:41,897 INFO L85 PathProgramCache]: Analyzing trace with hash -1581565115, now seen corresponding path program 4 times [2022-03-16 05:45:41,897 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:45:41,897 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1744956246] [2022-03-16 05:45:41,898 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:45:41,898 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:45:42,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:45:43,664 INFO L134 CoverageAnalysis]: Checked inductivity of 7586 backedges. 2544 proven. 5042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:45:43,665 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:45:43,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1744956246] [2022-03-16 05:45:43,665 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1744956246] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:45:43,665 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1435789141] [2022-03-16 05:45:43,666 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 05:45:43,667 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:45:43,669 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:45:43,671 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) [2022-03-16 05:45:43,694 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-03-16 05:45:43,831 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 05:45:43,831 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 05:45:43,837 INFO L263 TraceCheckSpWp]: Trace formula consists of 686 conjuncts, 86 conjunts are in the unsatisfiable core [2022-03-16 05:45:43,845 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:45:47,374 INFO L134 CoverageAnalysis]: Checked inductivity of 7586 backedges. 2544 proven. 5042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:45:47,374 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:45:48,086 INFO L134 CoverageAnalysis]: Checked inductivity of 7586 backedges. 2544 proven. 5042 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:45:48,087 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1435789141] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:45:48,087 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:45:48,087 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [87, 87, 87] total 155 [2022-03-16 05:45:48,088 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547211099] [2022-03-16 05:45:48,088 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:45:48,089 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 155 states [2022-03-16 05:45:48,089 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:45:48,091 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 155 interpolants. [2022-03-16 05:45:48,096 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4070, Invalid=19800, Unknown=0, NotChecked=0, Total=23870 [2022-03-16 05:45:48,096 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:45:48,096 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:45:48,097 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 155 states, 155 states have (on average 4.2387096774193544) internal successors, (657), 155 states have internal predecessors, (657), 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) [2022-03-16 05:45:48,097 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:45:48,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:45:48,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:45:48,098 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:45:48,607 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 867 transitions and produced 847 states. [2022-03-16 05:45:48,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:45:48,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:45:48,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:45:48,608 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:45:48,642 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-03-16 05:45:48,842 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 [2022-03-16 05:45:48,842 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:45:48,842 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:45:48,843 INFO L85 PathProgramCache]: Analyzing trace with hash -2012787351, now seen corresponding path program 5 times [2022-03-16 05:45:48,843 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:45:48,843 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [236527997] [2022-03-16 05:45:48,843 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:45:48,844 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:45:48,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:45:57,020 INFO L134 CoverageAnalysis]: Checked inductivity of 7833 backedges. 0 proven. 7827 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:45:57,025 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:45:57,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [236527997] [2022-03-16 05:45:57,025 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [236527997] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:45:57,025 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [52864077] [2022-03-16 05:45:57,025 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 05:45:57,025 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:45:57,026 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:45:57,027 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) [2022-03-16 05:45:57,028 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Waiting until timeout for monitored process [2022-03-16 05:45:57,198 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 43 check-sat command(s) [2022-03-16 05:45:57,198 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 05:45:57,209 WARN L261 TraceCheckSpWp]: Trace formula consists of 697 conjuncts, 423 conjunts are in the unsatisfiable core [2022-03-16 05:45:57,216 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:45:58,103 INFO L134 CoverageAnalysis]: Checked inductivity of 7833 backedges. 0 proven. 7827 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:45:58,104 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:45:59,008 INFO L134 CoverageAnalysis]: Checked inductivity of 7833 backedges. 0 proven. 7827 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:45:59,009 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [52864077] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:45:59,009 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:45:59,010 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [165, 165, 165] total 165 [2022-03-16 05:45:59,010 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1914558916] [2022-03-16 05:45:59,010 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:45:59,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 167 states [2022-03-16 05:45:59,017 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:45:59,018 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 167 interpolants. [2022-03-16 05:45:59,020 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=331, Invalid=27391, Unknown=0, NotChecked=0, Total=27722 [2022-03-16 05:45:59,020 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:45:59,020 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:45:59,021 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 167 states, 166 states have (on average 2.3132530120481927) internal successors, (384), 166 states have internal predecessors, (384), 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) [2022-03-16 05:45:59,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:45:59,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:45:59,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:45:59,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:45:59,021 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:46:06,200 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1190 transitions and produced 1170 states. [2022-03-16 05:46:06,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:46:06,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:46:06,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:46:06,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:46:06,200 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:46:06,219 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (7)] Forceful destruction successful, exit code 0 [2022-03-16 05:46:06,411 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 [2022-03-16 05:46:06,412 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:46:06,413 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:46:06,413 INFO L85 PathProgramCache]: Analyzing trace with hash 1105778395, now seen corresponding path program 6 times [2022-03-16 05:46:06,413 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:46:06,414 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [601035199] [2022-03-16 05:46:06,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:46:06,414 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:46:06,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:46:09,774 INFO L134 CoverageAnalysis]: Checked inductivity of 15958 backedges. 6864 proven. 9094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:46:09,775 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:46:09,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [601035199] [2022-03-16 05:46:09,775 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [601035199] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:46:09,775 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [428082680] [2022-03-16 05:46:09,775 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 05:46:09,776 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:46:09,776 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:46:09,784 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) [2022-03-16 05:46:09,785 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Waiting until timeout for monitored process [2022-03-16 05:46:10,021 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 68 check-sat command(s) [2022-03-16 05:46:10,021 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 05:46:10,033 INFO L263 TraceCheckSpWp]: Trace formula consists of 972 conjuncts, 112 conjunts are in the unsatisfiable core [2022-03-16 05:46:10,041 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:46:13,927 INFO L134 CoverageAnalysis]: Checked inductivity of 15958 backedges. 12936 proven. 3022 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:46:13,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:46:17,088 INFO L134 CoverageAnalysis]: Checked inductivity of 15958 backedges. 6864 proven. 9094 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:46:17,088 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [428082680] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:46:17,088 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:46:17,089 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [113, 113, 113] total 253 [2022-03-16 05:46:17,089 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [132603548] [2022-03-16 05:46:17,089 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:46:17,092 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 253 states [2022-03-16 05:46:17,092 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:46:17,095 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 253 interpolants. [2022-03-16 05:46:17,101 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=11882, Invalid=51874, Unknown=0, NotChecked=0, Total=63756 [2022-03-16 05:46:17,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:46:17,101 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:46:17,102 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 253 states, 253 states have (on average 4.707509881422925) internal successors, (1191), 253 states have internal predecessors, (1191), 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) [2022-03-16 05:46:17,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:46:17,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:46:17,102 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:46:17,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:46:17,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:46:17,103 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:46:30,625 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1623 transitions and produced 1448 states. [2022-03-16 05:46:30,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:46:30,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:46:30,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:46:30,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:46:30,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:46:30,625 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:46:30,645 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (8)] Ended with exit code 0 [2022-03-16 05:46:30,845 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 [2022-03-16 05:46:30,845 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:46:30,846 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:46:30,846 INFO L85 PathProgramCache]: Analyzing trace with hash -995187699, now seen corresponding path program 7 times [2022-03-16 05:46:30,846 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:46:30,846 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [424728846] [2022-03-16 05:46:30,846 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:46:30,846 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:46:31,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:46:49,353 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:46:49,353 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:46:49,353 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [424728846] [2022-03-16 05:46:49,353 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [424728846] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:46:49,354 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [472383380] [2022-03-16 05:46:49,354 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 05:46:49,354 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:46:49,354 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:46:49,356 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) [2022-03-16 05:46:49,359 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Waiting until timeout for monitored process [2022-03-16 05:46:49,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:46:49,589 WARN L261 TraceCheckSpWp]: Trace formula consists of 1097 conjuncts, 673 conjunts are in the unsatisfiable core [2022-03-16 05:46:49,601 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:46:51,268 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:46:51,269 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:46:53,393 INFO L134 CoverageAnalysis]: Checked inductivity of 20033 backedges. 0 proven. 20027 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:46:53,394 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [472383380] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:46:53,394 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:46:53,394 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [265, 265, 265] total 265 [2022-03-16 05:46:53,395 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1664524981] [2022-03-16 05:46:53,395 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:46:53,396 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 267 states [2022-03-16 05:46:53,396 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:46:53,397 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 267 interpolants. [2022-03-16 05:46:53,401 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=531, Invalid=70491, Unknown=0, NotChecked=0, Total=71022 [2022-03-16 05:46:53,402 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:46:53,402 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:46:53,402 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) [2022-03-16 05:46:53,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:46:53,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:46:53,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:46:53,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:46:53,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:46:53,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:46:53,403 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:47:15,184 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 1686 transitions and produced 1642 states. [2022-03-16 05:47:15,184 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:47:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:47:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:47:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:47:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:47:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:47:15,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:47:15,203 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (9)] Ended with exit code 0 [2022-03-16 05:47:15,389 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 [2022-03-16 05:47:15,390 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:47:15,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:47:15,391 INFO L85 PathProgramCache]: Analyzing trace with hash -1281209765, now seen corresponding path program 8 times [2022-03-16 05:47:15,391 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:47:15,391 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [117759049] [2022-03-16 05:47:15,391 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:47:15,391 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:47:15,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:47:20,784 INFO L134 CoverageAnalysis]: Checked inductivity of 31908 backedges. 14989 proven. 16919 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:47:20,784 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:47:20,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [117759049] [2022-03-16 05:47:20,785 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [117759049] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:47:20,785 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [739856595] [2022-03-16 05:47:20,785 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 05:47:20,785 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:47:20,785 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:47:20,787 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) [2022-03-16 05:47:20,788 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Waiting until timeout for monitored process [2022-03-16 05:47:21,028 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 05:47:21,028 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 05:47:21,045 INFO L263 TraceCheckSpWp]: Trace formula consists of 1372 conjuncts, 162 conjunts are in the unsatisfiable core [2022-03-16 05:47:21,059 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:47:28,701 INFO L134 CoverageAnalysis]: Checked inductivity of 31908 backedges. 24661 proven. 7247 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:47:28,701 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:47:33,302 INFO L134 CoverageAnalysis]: Checked inductivity of 31908 backedges. 14989 proven. 16919 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:47:33,303 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [739856595] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:47:33,303 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:47:33,303 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [163, 163, 163] total 328 [2022-03-16 05:47:33,304 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566993436] [2022-03-16 05:47:33,304 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:47:33,305 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 328 states [2022-03-16 05:47:33,306 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:47:33,309 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 328 interpolants. [2022-03-16 05:47:33,315 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=19982, Invalid=87274, Unknown=0, NotChecked=0, Total=107256 [2022-03-16 05:47:33,315 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:47:33,315 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:47:33,317 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 328 states, 328 states have (on average 4.545731707317073) internal successors, (1491), 328 states have internal predecessors, (1491), 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) [2022-03-16 05:47:33,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:47:33,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:47:33,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:47:33,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:47:33,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:47:33,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:47:33,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:47:33,317 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:47:56,448 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2123 transitions and produced 1924 states. [2022-03-16 05:47:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:47:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:47:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:47:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:47:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:47:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:47:56,448 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:47:56,449 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-16 05:47:56,472 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (10)] Forceful destruction successful, exit code 0 [2022-03-16 05:47:56,663 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 [2022-03-16 05:47:56,664 INFO L402 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:47:56,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:47:56,665 INFO L85 PathProgramCache]: Analyzing trace with hash 1649614961, now seen corresponding path program 9 times [2022-03-16 05:47:56,665 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:47:56,665 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [842613503] [2022-03-16 05:47:56,665 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:47:56,665 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:47:57,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:48:35,853 INFO L134 CoverageAnalysis]: Checked inductivity of 37858 backedges. 0 proven. 37852 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:48:35,854 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:48:35,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [842613503] [2022-03-16 05:48:35,854 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [842613503] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:48:35,854 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1858533946] [2022-03-16 05:48:35,854 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-03-16 05:48:35,855 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:48:35,855 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:48:35,856 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) [2022-03-16 05:48:35,857 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Waiting until timeout for monitored process [2022-03-16 05:48:36,323 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 93 check-sat command(s) [2022-03-16 05:48:36,323 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 05:48:36,351 WARN L261 TraceCheckSpWp]: Trace formula consists of 1497 conjuncts, 923 conjunts are in the unsatisfiable core [2022-03-16 05:48:36,413 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:48:39,285 INFO L134 CoverageAnalysis]: Checked inductivity of 37858 backedges. 0 proven. 37852 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:48:39,285 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:48:42,513 INFO L134 CoverageAnalysis]: Checked inductivity of 37858 backedges. 0 proven. 37852 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:48:42,513 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1858533946] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:48:42,513 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:48:42,514 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [365, 365, 365] total 365 [2022-03-16 05:48:42,514 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1516429948] [2022-03-16 05:48:42,514 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:48:42,516 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 367 states [2022-03-16 05:48:42,519 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:48:42,521 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 367 interpolants. [2022-03-16 05:48:42,526 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=731, Invalid=133591, Unknown=0, NotChecked=0, Total=134322 [2022-03-16 05:48:42,527 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:48:42,527 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:48:42,528 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 367 states, 366 states have (on average 2.278688524590164) internal successors, (834), 366 states have internal predecessors, (834), 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) [2022-03-16 05:48:42,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:48:42,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:48:42,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:48:42,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:48:42,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:48:42,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:48:42,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:48:42,528 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-16 05:48:42,529 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:49:18,442 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2186 transitions and produced 2118 states. [2022-03-16 05:49:18,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:49:18,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:49:18,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:49:18,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:49:18,442 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:49:18,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:49:18,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:49:18,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-16 05:49:18,443 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2022-03-16 05:49:18,475 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (11)] Forceful destruction successful, exit code 0 [2022-03-16 05:49:18,661 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 [2022-03-16 05:49:18,662 INFO L402 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:49:18,662 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:49:18,662 INFO L85 PathProgramCache]: Analyzing trace with hash 589845091, now seen corresponding path program 10 times [2022-03-16 05:49:18,662 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:49:18,662 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1910972052] [2022-03-16 05:49:18,662 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:49:18,662 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:49:19,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:49:28,680 INFO L134 CoverageAnalysis]: Checked inductivity of 53483 backedges. 26864 proven. 26619 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:49:28,681 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:49:28,681 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1910972052] [2022-03-16 05:49:28,682 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1910972052] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:49:28,682 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [8773015] [2022-03-16 05:49:28,682 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-03-16 05:49:28,682 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:49:28,683 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:49:28,684 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) [2022-03-16 05:49:28,686 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Waiting until timeout for monitored process [2022-03-16 05:49:28,944 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-03-16 05:49:28,945 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 05:49:28,966 INFO L263 TraceCheckSpWp]: Trace formula consists of 1772 conjuncts, 212 conjunts are in the unsatisfiable core [2022-03-16 05:49:28,978 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:49:37,537 INFO L134 CoverageAnalysis]: Checked inductivity of 53483 backedges. 40136 proven. 13347 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:49:37,537 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:49:44,411 INFO L134 CoverageAnalysis]: Checked inductivity of 53483 backedges. 26864 proven. 26619 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:49:44,411 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [8773015] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:49:44,411 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:49:44,412 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [213, 213, 213] total 403 [2022-03-16 05:49:44,412 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [142121952] [2022-03-16 05:49:44,412 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:49:44,414 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 403 states [2022-03-16 05:49:44,414 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:49:44,419 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 403 interpolants. [2022-03-16 05:49:44,431 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30582, Invalid=131424, Unknown=0, NotChecked=0, Total=162006 [2022-03-16 05:49:44,432 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:49:44,432 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:49:44,433 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 403 states, 403 states have (on average 4.444168734491315) internal successors, (1791), 403 states have internal predecessors, (1791), 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) [2022-03-16 05:49:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:49:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:49:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:49:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:49:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:49:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:49:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:49:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-16 05:49:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 367 states. [2022-03-16 05:49:44,433 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:50:24,602 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2623 transitions and produced 2400 states. [2022-03-16 05:50:24,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:50:24,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:50:24,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:50:24,602 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:50:24,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:50:24,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:50:24,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:50:24,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-16 05:50:24,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2022-03-16 05:50:24,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2022-03-16 05:50:24,630 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (12)] Forceful destruction successful, exit code 0 [2022-03-16 05:50:24,806 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 [2022-03-16 05:50:24,806 INFO L402 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:50:24,807 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:50:24,807 INFO L85 PathProgramCache]: Analyzing trace with hash 992963845, now seen corresponding path program 11 times [2022-03-16 05:50:24,807 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:50:24,807 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1332487065] [2022-03-16 05:50:24,807 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:50:24,807 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:50:26,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:51:23,541 INFO L134 CoverageAnalysis]: Checked inductivity of 61308 backedges. 0 proven. 61302 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:51:23,541 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:51:23,541 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1332487065] [2022-03-16 05:51:23,543 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1332487065] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:51:23,543 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [203215191] [2022-03-16 05:51:23,543 INFO L93 rtionOrderModulation]: Changing assertion order to INSIDE_LOOP_FIRST1 [2022-03-16 05:51:23,543 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:51:23,544 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:51:23,548 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) [2022-03-16 05:51:23,549 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Waiting until timeout for monitored process [2022-03-16 05:51:24,355 INFO L228 tOrderPrioritization]: Assert order INSIDE_LOOP_FIRST1 issued 118 check-sat command(s) [2022-03-16 05:51:24,355 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 05:51:24,459 WARN L261 TraceCheckSpWp]: Trace formula consists of 1897 conjuncts, 1173 conjunts are in the unsatisfiable core [2022-03-16 05:51:24,474 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:51:28,380 INFO L134 CoverageAnalysis]: Checked inductivity of 61308 backedges. 0 proven. 61302 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:51:28,380 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:51:31,225 INFO L134 CoverageAnalysis]: Checked inductivity of 61308 backedges. 0 proven. 61302 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:51:31,226 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [203215191] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:51:31,226 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:51:31,226 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [465, 465, 465] total 465 [2022-03-16 05:51:31,226 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011399212] [2022-03-16 05:51:31,226 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:51:31,228 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 467 states [2022-03-16 05:51:31,228 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:51:31,228 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 467 interpolants. [2022-03-16 05:51:31,235 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=931, Invalid=216691, Unknown=0, NotChecked=0, Total=217622 [2022-03-16 05:51:31,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:51:31,235 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:51:31,236 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 467 states, 466 states have (on average 2.272532188841202) internal successors, (1059), 466 states have internal predecessors, (1059), 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) [2022-03-16 05:51:31,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:51:31,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:51:31,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:51:31,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:51:31,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:51:31,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:51:31,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:51:31,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-16 05:51:31,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 367 states. [2022-03-16 05:51:31,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2022-03-16 05:51:31,236 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:52:27,667 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 2686 transitions and produced 2594 states. [2022-03-16 05:52:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:52:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:52:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:52:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:52:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:52:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:52:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:52:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-16 05:52:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2022-03-16 05:52:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2022-03-16 05:52:27,668 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 467 states. [2022-03-16 05:52:27,701 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (13)] Forceful destruction successful, exit code 0 [2022-03-16 05:52:27,873 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 [2022-03-16 05:52:27,874 INFO L402 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:52:27,874 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:52:27,874 INFO L85 PathProgramCache]: Analyzing trace with hash -1274389805, now seen corresponding path program 12 times [2022-03-16 05:52:27,874 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:52:27,875 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445279566] [2022-03-16 05:52:27,875 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:52:27,875 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:52:29,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:52:44,800 INFO L134 CoverageAnalysis]: Checked inductivity of 80683 backedges. 42489 proven. 38194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:52:44,800 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:52:44,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445279566] [2022-03-16 05:52:44,800 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445279566] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:52:44,800 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [71307804] [2022-03-16 05:52:44,801 INFO L93 rtionOrderModulation]: Changing assertion order to MIX_INSIDE_OUTSIDE [2022-03-16 05:52:44,801 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:52:44,801 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:52:44,802 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) [2022-03-16 05:52:44,803 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Waiting until timeout for monitored process [2022-03-16 05:52:45,550 INFO L228 tOrderPrioritization]: Assert order MIX_INSIDE_OUTSIDE issued 143 check-sat command(s) [2022-03-16 05:52:45,550 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 05:52:45,600 INFO L263 TraceCheckSpWp]: Trace formula consists of 2172 conjuncts, 262 conjunts are in the unsatisfiable core [2022-03-16 05:52:45,632 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:53:00,893 INFO L134 CoverageAnalysis]: Checked inductivity of 80683 backedges. 59361 proven. 21322 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:53:00,893 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:53:08,008 INFO L134 CoverageAnalysis]: Checked inductivity of 80683 backedges. 42489 proven. 38194 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:53:08,010 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [71307804] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:53:08,010 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:53:08,011 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [263, 263, 263] total 478 [2022-03-16 05:53:08,011 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1980196538] [2022-03-16 05:53:08,011 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:53:08,013 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 478 states [2022-03-16 05:53:08,013 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:53:08,022 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 478 interpolants. [2022-03-16 05:53:08,038 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=43682, Invalid=184324, Unknown=0, NotChecked=0, Total=228006 [2022-03-16 05:53:08,039 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:53:08,039 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:53:08,049 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 478 states, 478 states have (on average 4.374476987447698) internal successors, (2091), 478 states have internal predecessors, (2091), 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) [2022-03-16 05:53:08,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:53:08,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:53:08,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:53:08,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:53:08,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:53:08,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:53:08,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:53:08,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-16 05:53:08,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 367 states. [2022-03-16 05:53:08,049 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2022-03-16 05:53:08,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 467 states. [2022-03-16 05:53:08,050 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:54:10,997 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3123 transitions and produced 2876 states. [2022-03-16 05:54:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:54:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:54:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:54:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:54:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:54:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:54:10,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:54:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-16 05:54:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2022-03-16 05:54:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2022-03-16 05:54:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 467 states. [2022-03-16 05:54:10,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 432 states. [2022-03-16 05:54:11,020 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (14)] Forceful destruction successful, exit code 0 [2022-03-16 05:54:11,218 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 [2022-03-16 05:54:11,219 INFO L402 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:54:11,219 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:54:11,219 INFO L85 PathProgramCache]: Analyzing trace with hash 1424644985, now seen corresponding path program 13 times [2022-03-16 05:54:11,219 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:54:11,219 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1021949152] [2022-03-16 05:54:11,219 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:54:11,220 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:54:13,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:55:45,247 INFO L134 CoverageAnalysis]: Checked inductivity of 90383 backedges. 0 proven. 90377 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:55:45,248 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:55:45,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1021949152] [2022-03-16 05:55:45,260 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1021949152] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:55:45,260 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [959222980] [2022-03-16 05:55:45,260 INFO L93 rtionOrderModulation]: Changing assertion order to NOT_INCREMENTALLY [2022-03-16 05:55:45,260 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:55:45,261 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:55:45,262 INFO L229 MonitoredProcess]: Starting monitored process 15 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 05:55:45,263 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Waiting until timeout for monitored process [2022-03-16 05:55:45,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:55:45,634 WARN L261 TraceCheckSpWp]: Trace formula consists of 2297 conjuncts, 1423 conjunts are in the unsatisfiable core [2022-03-16 05:55:45,648 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:55:49,265 INFO L134 CoverageAnalysis]: Checked inductivity of 90383 backedges. 0 proven. 90377 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:55:49,266 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:55:53,167 INFO L134 CoverageAnalysis]: Checked inductivity of 90383 backedges. 0 proven. 90377 refuted. 0 times theorem prover too weak. 6 trivial. 0 not checked. [2022-03-16 05:55:53,169 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [959222980] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:55:53,177 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:55:53,177 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [565, 565, 565] total 565 [2022-03-16 05:55:53,177 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1658842697] [2022-03-16 05:55:53,177 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:55:53,179 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 567 states [2022-03-16 05:55:53,179 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:55:53,180 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 567 interpolants. [2022-03-16 05:55:53,188 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1131, Invalid=319791, Unknown=0, NotChecked=0, Total=320922 [2022-03-16 05:55:53,189 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:55:53,189 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:55:53,190 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 567 states, 566 states have (on average 2.2685512367491167) internal successors, (1284), 566 states have internal predecessors, (1284), 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) [2022-03-16 05:55:53,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:55:53,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:55:53,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:55:53,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:55:53,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:55:53,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:55:53,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:55:53,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-16 05:55:53,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 367 states. [2022-03-16 05:55:53,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2022-03-16 05:55:53,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 467 states. [2022-03-16 05:55:53,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 432 states. [2022-03-16 05:55:53,190 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:57:15,794 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 3186 transitions and produced 3070 states. [2022-03-16 05:57:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:57:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:57:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:57:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:57:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:57:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:57:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:57:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 332 states. [2022-03-16 05:57:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 367 states. [2022-03-16 05:57:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 382 states. [2022-03-16 05:57:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 467 states. [2022-03-16 05:57:15,795 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 432 states. [2022-03-16 05:57:15,796 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 567 states. [2022-03-16 05:57:15,820 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (15)] Ended with exit code 0 [2022-03-16 05:57:15,996 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12,15 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:57:15,997 INFO L402 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-16 05:57:15,997 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-16 05:57:15,997 INFO L85 PathProgramCache]: Analyzing trace with hash 133125611, now seen corresponding path program 14 times [2022-03-16 05:57:15,997 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-16 05:57:15,997 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771984405] [2022-03-16 05:57:15,997 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-16 05:57:15,998 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-16 05:57:18,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-16 05:57:39,280 INFO L134 CoverageAnalysis]: Checked inductivity of 113508 backedges. 61864 proven. 51644 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:57:39,281 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-16 05:57:39,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771984405] [2022-03-16 05:57:39,281 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1771984405] provided 0 perfect and 1 imperfect interpolant sequences [2022-03-16 05:57:39,281 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1601044569] [2022-03-16 05:57:39,281 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-03-16 05:57:39,281 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:57:39,282 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-16 05:57:39,284 INFO L229 MonitoredProcess]: Starting monitored process 16 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-03-16 05:57:39,284 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Waiting until timeout for monitored process [2022-03-16 05:57:39,723 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-03-16 05:57:39,723 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-03-16 05:57:39,760 INFO L263 TraceCheckSpWp]: Trace formula consists of 2572 conjuncts, 312 conjunts are in the unsatisfiable core [2022-03-16 05:57:39,774 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-03-16 05:58:00,159 INFO L134 CoverageAnalysis]: Checked inductivity of 113508 backedges. 82336 proven. 31172 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:58:00,159 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-03-16 05:58:07,899 INFO L134 CoverageAnalysis]: Checked inductivity of 113508 backedges. 61864 proven. 51644 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-16 05:58:07,899 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1601044569] provided 0 perfect and 2 imperfect interpolant sequences [2022-03-16 05:58:07,899 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-03-16 05:58:07,899 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [313, 313, 313] total 553 [2022-03-16 05:58:07,901 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [385837912] [2022-03-16 05:58:07,901 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-03-16 05:58:07,913 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 553 states [2022-03-16 05:58:07,914 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-16 05:58:07,922 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 553 interpolants. [2022-03-16 05:58:07,936 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59282, Invalid=245974, Unknown=0, NotChecked=0, Total=305256 [2022-03-16 05:58:07,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-03-16 05:58:07,936 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-03-16 05:58:07,945 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 553 states, 553 states have (on average 4.32368896925859) internal successors, (2391), 553 states have internal predecessors, (2391), 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) [2022-03-16 05:58:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 144 states. [2022-03-16 05:58:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2022-03-16 05:58:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 35 states. [2022-03-16 05:58:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 37 states. [2022-03-16 05:58:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 167 states. [2022-03-16 05:58:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 282 states. [2022-03-16 05:58:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 267 states. [2022-03-16 05:58:07,945 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 332 states. [2022-03-16 05:58:07,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 367 states. [2022-03-16 05:58:07,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 382 states. [2022-03-16 05:58:07,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 467 states. [2022-03-16 05:58:07,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 432 states. [2022-03-16 05:58:07,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 567 states. [2022-03-16 05:58:07,946 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. Received shutdown request... [2022-03-16 05:59:32,447 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 [2022-03-16 05:59:32,447 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 [2022-03-16 05:59:32,448 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-03-16 05:59:32,456 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (16)] Forceful destruction successful, exit code 0 [2022-03-16 05:59:32,647 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,16 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-03-16 05:59:32,647 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 855 known predicates. [2022-03-16 05:59:32,650 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-16 05:59:32,650 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-16 05:59:32,650 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-16 05:59:32,655 INFO L732 BasicCegarLoop]: Path program histogram: [14] [2022-03-16 05:59:32,657 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-16 05:59:32,657 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-16 05:59:32,658 INFO L202 PluginConnector]: Adding new model loop-lockstep-example.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.03 05:59:32 BasicIcfg [2022-03-16 05:59:32,659 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-16 05:59:32,665 INFO L158 Benchmark]: Toolchain (without parser) took 854409.77ms. Allocated memory was 195.0MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 156.2MB in the beginning and 799.5MB in the end (delta: -643.2MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-03-16 05:59:32,665 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 195.0MB. Free memory is still 157.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-16 05:59:32,666 INFO L158 Benchmark]: Boogie Procedure Inliner took 27.59ms. Allocated memory is still 195.0MB. Free memory was 156.1MB in the beginning and 154.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. [2022-03-16 05:59:32,666 INFO L158 Benchmark]: Boogie Preprocessor took 12.83ms. Allocated memory is still 195.0MB. Free memory was 154.5MB in the beginning and 153.7MB in the end (delta: 895.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-16 05:59:32,666 INFO L158 Benchmark]: RCFGBuilder took 258.47ms. Allocated memory is still 195.0MB. Free memory was 153.7MB in the beginning and 145.1MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-16 05:59:32,667 INFO L158 Benchmark]: TraceAbstraction took 854104.55ms. Allocated memory was 195.0MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 144.7MB in the beginning and 799.5MB in the end (delta: -654.8MB). Peak memory consumption was 1.1GB. Max. memory is 8.0GB. [2022-03-16 05:59:32,669 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 0.11ms. Allocated memory is still 195.0MB. Free memory is still 157.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 27.59ms. Allocated memory is still 195.0MB. Free memory was 156.1MB in the beginning and 154.5MB in the end (delta: 1.6MB). Peak memory consumption was 2.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 12.83ms. Allocated memory is still 195.0MB. Free memory was 154.5MB in the beginning and 153.7MB in the end (delta: 895.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 258.47ms. Allocated memory is still 195.0MB. Free memory was 153.7MB in the beginning and 145.1MB in the end (delta: 8.6MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 854104.55ms. Allocated memory was 195.0MB in the beginning and 2.0GB in the end (delta: 1.8GB). Free memory was 144.7MB in the beginning and 799.5MB in the end (delta: -654.8MB). Peak memory consumption was 1.1GB. 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 PredicateComparison was comparing new predicate (quantifier-free) to 855 known predicates. - 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 PredicateComparison was comparing new predicate (quantifier-free) to 855 known predicates. - 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 PredicateComparison was comparing new predicate (quantifier-free) to 855 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 41 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 854.0s, OverallIterations: 14, TraceHistogramMax: 0, PathProgramHistogramMax: 14, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 434.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 3945, 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: 0.7s SsaConstructionTime, 13.8s SatisfiabilityAnalysisTime, 401.1s InterpolantComputationTime, 20850 NumberOfCodeBlocks, 20850 NumberOfCodeBlocksAsserted, 532 NumberOfCheckSat, 31233 ConstructedInterpolants, 0 QuantifiedInterpolants, 169927 SizeOfPredicates, 36 NumberOfNonLiveVariables, 18625 ConjunctsInSsa, 5951 ConjunctsInUnsatCore, 42 InterpolantComputations, 0 PerfectInterpolantSequences, 553410/1604064 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