/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy11.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-2ce48c3f3f8970e6bfb7f04ced506932607c57fe-2ce48c3 [2021-10-25 02:06:25,831 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-10-25 02:06:25,833 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-10-25 02:06:25,876 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-10-25 02:06:25,916 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-POR-NewStatesSleepPersistentFixedOrder-Uncond-NoLbe-Lockstep.epf [2021-10-25 02:06:25,930 INFO L113 SettingsManager]: Loading preferences was successful [2021-10-25 02:06:25,931 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-10-25 02:06:25,931 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-10-25 02:06:25,931 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-10-25 02:06:25,932 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-10-25 02:06:25,932 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-10-25 02:06:25,932 INFO L138 SettingsManager]: * Use SBE=true [2021-10-25 02:06:25,932 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-10-25 02:06:25,932 INFO L138 SettingsManager]: * sizeof long=4 [2021-10-25 02:06:25,932 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-10-25 02:06:25,933 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-10-25 02:06:25,933 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-10-25 02:06:25,933 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-10-25 02:06:25,933 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-10-25 02:06:25,933 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-10-25 02:06:25,933 INFO L138 SettingsManager]: * sizeof long double=12 [2021-10-25 02:06:25,933 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-10-25 02:06:25,933 INFO L138 SettingsManager]: * Use constant arrays=true [2021-10-25 02:06:25,933 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-10-25 02:06:25,934 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-10-25 02:06:25,934 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-10-25 02:06:25,934 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-10-25 02:06:25,934 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-10-25 02:06:25,934 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 02:06:25,934 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-10-25 02:06:25,934 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-10-25 02:06:25,934 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-10-25 02:06:25,935 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-10-25 02:06:25,935 INFO L138 SettingsManager]: * DFS Order used in POR=PSEUDO_LOCKSTEP [2021-10-25 02:06:25,935 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-10-25 02:06:25,935 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-10-25 02:06:25,935 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2021-10-25 02:06:25,935 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-10-25 02:06:25,935 INFO L138 SettingsManager]: * CEGAR restart behaviour=ONE_CEGAR_PER_THREAD_INSTANCE [2021-10-25 02:06:25,935 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=PERSISTENT_SLEEP_NEW_STATES_FIXEDORDER [2021-10-25 02:06:25,936 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-10-25 02:06:25,936 INFO L138 SettingsManager]: * Use conditional POR in concurrent analysis=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-10-25 02:06:26,109 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-10-25 02:06:26,124 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-10-25 02:06:26,126 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-10-25 02:06:26,127 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-10-25 02:06:26,130 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-10-25 02:06:26,130 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy11.wvr.bpl [2021-10-25 02:06:26,131 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy11.wvr.bpl' [2021-10-25 02:06:26,148 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-10-25 02:06:26,148 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-10-25 02:06:26,149 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-10-25 02:06:26,149 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-10-25 02:06:26,149 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-10-25 02:06:26,160 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:06:26" (1/1) ... [2021-10-25 02:06:26,164 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:06:26" (1/1) ... [2021-10-25 02:06:26,169 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-10-25 02:06:26,172 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-10-25 02:06:26,173 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-10-25 02:06:26,173 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-10-25 02:06:26,177 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:06:26" (1/1) ... [2021-10-25 02:06:26,178 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:06:26" (1/1) ... [2021-10-25 02:06:26,178 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:06:26" (1/1) ... [2021-10-25 02:06:26,178 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:06:26" (1/1) ... [2021-10-25 02:06:26,179 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:06:26" (1/1) ... [2021-10-25 02:06:26,181 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:06:26" (1/1) ... [2021-10-25 02:06:26,181 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:06:26" (1/1) ... [2021-10-25 02:06:26,182 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-10-25 02:06:26,183 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-10-25 02:06:26,183 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-10-25 02:06:26,183 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-10-25 02:06:26,184 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:06:26" (1/1) ... [2021-10-25 02:06:26,189 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-10-25 02:06:26,193 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:06:26,208 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-10-25 02:06:26,213 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-10-25 02:06:26,234 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-10-25 02:06:26,234 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-10-25 02:06:26,234 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-10-25 02:06:26,234 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-10-25 02:06:26,235 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-10-25 02:06:26,235 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-10-25 02:06:26,235 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-10-25 02:06:26,235 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-10-25 02:06:26,235 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-10-25 02:06:26,235 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-10-25 02:06:26,361 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-10-25 02:06:26,361 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-10-25 02:06:26,363 INFO L202 PluginConnector]: Adding new model easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:06:26 BoogieIcfgContainer [2021-10-25 02:06:26,364 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-10-25 02:06:26,366 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-10-25 02:06:26,366 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-10-25 02:06:26,369 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-10-25 02:06:26,369 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 25.10 02:06:26" (1/2) ... [2021-10-25 02:06:26,371 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@73c7e704 and model type easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.10 02:06:26, skipping insertion in model container [2021-10-25 02:06:26,371 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.10 02:06:26" (2/2) ... [2021-10-25 02:06:26,377 INFO L111 eAbstractionObserver]: Analyzing ICFG easy11.wvr.bpl [2021-10-25 02:06:26,383 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-10-25 02:06:26,383 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-10-25 02:06:26,383 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-10-25 02:06:26,384 INFO L516 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-10-25 02:06:26,415 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,415 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,416 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,416 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,416 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,416 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,417 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,417 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,419 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,419 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,419 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,420 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,420 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,421 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,421 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,421 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,422 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,423 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,423 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,423 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,424 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,424 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,424 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,424 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,430 WARN L313 ript$VariableManager]: TermVariabe thread1Thread1of1ForFork0_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,437 WARN L313 ript$VariableManager]: TermVariabe thread2Thread1of1ForFork1_x not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-10-25 02:06:26,445 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-10-25 02:06:26,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2021-10-25 02:06:26,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:06:26,501 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (exit command is (exit), workingDir is null) [2021-10-25 02:06:26,506 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Waiting until timeout for monitored process [2021-10-25 02:06:26,525 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == ULTIMATE.start ======== [2021-10-25 02:06:26,529 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mConcurrency=PARTIAL_ORDER_FA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-10-25 02:06:26,529 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-10-25 02:06:26,624 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 02:06:26,627 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:06:26,627 INFO L82 PathProgramCache]: Analyzing trace with hash 839618650, now seen corresponding path program 1 times [2021-10-25 02:06:26,649 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:06:26,649 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [655976665] [2021-10-25 02:06:26,649 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:06:26,650 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:06:26,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:06:26,789 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 02:06:26,789 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:06:26,789 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [655976665] [2021-10-25 02:06:26,790 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [655976665] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:06:26,790 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [740697929] [2021-10-25 02:06:26,790 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:06:26,790 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 02:06:26,791 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:06:26,792 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 02:06:26,793 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2021-10-25 02:06:26,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:06:26,826 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-25 02:06:26,829 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 02:06:26,943 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 3 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 02:06:26,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [740697929] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:06:26,944 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 02:06:26,944 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-25 02:06:26,945 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1006016853] [2021-10-25 02:06:26,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-25 02:06:26,949 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:06:26,990 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-25 02:06:26,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-25 02:06:26,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:06:26,992 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:06:26,993 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 02:06:26,994 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:06:27,086 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 02:06:27,106 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Forceful destruction successful, exit code 0 [2021-10-25 02:06:27,301 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 [2021-10-25 02:06:27,301 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 02:06:27,302 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:06:27,302 INFO L82 PathProgramCache]: Analyzing trace with hash 610398678, now seen corresponding path program 2 times [2021-10-25 02:06:27,302 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:06:27,302 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [735447973] [2021-10-25 02:06:27,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:06:27,302 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:06:27,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:06:27,499 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 02:06:27,499 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:06:27,499 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [735447973] [2021-10-25 02:06:27,500 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [735447973] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:06:27,500 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1930277372] [2021-10-25 02:06:27,500 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2021-10-25 02:06:27,500 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 02:06:27,500 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:06:27,501 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 02:06:27,503 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2021-10-25 02:06:27,540 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2021-10-25 02:06:27,541 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 02:06:27,543 INFO L263 TraceCheckSpWp]: Trace formula consists of 37 conjuncts, 14 conjunts are in the unsatisfiable core [2021-10-25 02:06:27,544 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 02:06:27,969 INFO L134 CoverageAnalysis]: Checked inductivity of 2 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 02:06:27,969 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1930277372] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:06:27,969 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 02:06:27,969 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11, 11] total 19 [2021-10-25 02:06:27,969 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1876962775] [2021-10-25 02:06:27,970 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 20 states [2021-10-25 02:06:27,970 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:06:27,970 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-10-25 02:06:27,971 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=59, Invalid=321, Unknown=0, NotChecked=0, Total=380 [2021-10-25 02:06:27,971 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:06:27,971 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:06:27,971 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 20 states, 20 states have (on average 1.55) internal successors, (31), 19 states have internal predecessors, (31), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 02:06:27,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 02:06:27,971 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:06:28,374 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 02:06:28,375 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 02:06:28,393 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Ended with exit code 0 [2021-10-25 02:06:28,579 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 [2021-10-25 02:06:28,579 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 02:06:28,580 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:06:28,580 INFO L82 PathProgramCache]: Analyzing trace with hash 970755574, now seen corresponding path program 3 times [2021-10-25 02:06:28,580 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:06:28,580 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [799267116] [2021-10-25 02:06:28,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:06:28,581 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:06:28,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:06:28,634 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 5 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-10-25 02:06:28,634 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:06:28,634 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [799267116] [2021-10-25 02:06:28,634 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [799267116] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:06:28,635 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [971423227] [2021-10-25 02:06:28,635 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2021-10-25 02:06:28,635 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 02:06:28,635 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:06:28,636 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 02:06:28,637 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2021-10-25 02:06:28,684 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 4 check-sat command(s) [2021-10-25 02:06:28,685 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 02:06:28,685 INFO L263 TraceCheckSpWp]: Trace formula consists of 43 conjuncts, 13 conjunts are in the unsatisfiable core [2021-10-25 02:06:28,686 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 02:06:28,913 INFO L134 CoverageAnalysis]: Checked inductivity of 10 backedges. 4 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 02:06:28,913 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [971423227] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:06:28,914 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 02:06:28,914 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6, 10] total 15 [2021-10-25 02:06:28,914 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1694734905] [2021-10-25 02:06:28,914 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 15 states [2021-10-25 02:06:28,914 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:06:28,915 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-10-25 02:06:28,915 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=172, Unknown=0, NotChecked=0, Total=210 [2021-10-25 02:06:28,915 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:06:28,915 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:06:28,915 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 15 states, 15 states have (on average 2.933333333333333) internal successors, (44), 15 states have internal predecessors, (44), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 02:06:28,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 02:06:28,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 02:06:28,915 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:06:29,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 02:06:29,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 02:06:29,130 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-10-25 02:06:29,146 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2021-10-25 02:06:29,331 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 [2021-10-25 02:06:29,331 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 02:06:29,332 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:06:29,332 INFO L82 PathProgramCache]: Analyzing trace with hash -669992134, now seen corresponding path program 4 times [2021-10-25 02:06:29,332 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:06:29,332 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [519589285] [2021-10-25 02:06:29,332 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:06:29,332 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:06:29,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:06:29,369 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 02:06:29,370 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:06:29,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [519589285] [2021-10-25 02:06:29,370 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [519589285] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:06:29,370 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [707911346] [2021-10-25 02:06:29,370 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2021-10-25 02:06:29,370 INFO L170 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-10-25 02:06:29,370 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-10-25 02:06:29,371 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2021-10-25 02:06:29,371 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2021-10-25 02:06:29,438 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2021-10-25 02:06:29,438 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2021-10-25 02:06:29,439 INFO L263 TraceCheckSpWp]: Trace formula consists of 40 conjuncts, 6 conjunts are in the unsatisfiable core [2021-10-25 02:06:29,439 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-10-25 02:06:29,498 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 2 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 02:06:29,499 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleZ3 [707911346] provided 0 perfect and 1 imperfect interpolant sequences [2021-10-25 02:06:29,499 INFO L186 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-10-25 02:06:29,499 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 7 [2021-10-25 02:06:29,499 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1055700979] [2021-10-25 02:06:29,499 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2021-10-25 02:06:29,499 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:06:29,500 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-10-25 02:06:29,500 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2021-10-25 02:06:29,500 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:06:29,500 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:06:29,500 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 3.0) internal successors, (21), 7 states have internal predecessors, (21), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 02:06:29,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 02:06:29,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 02:06:29,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 14 states. [2021-10-25 02:06:29,500 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:06:29,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 02:06:29,707 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-25 02:06:29,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 02:06:29,708 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 02:06:29,727 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Forceful destruction successful, exit code 0 [2021-10-25 02:06:29,918 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 [2021-10-25 02:06:29,919 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 02:06:29,919 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:06:29,919 INFO L82 PathProgramCache]: Analyzing trace with hash 340377702, now seen corresponding path program 1 times [2021-10-25 02:06:29,919 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:06:29,920 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [864517481] [2021-10-25 02:06:29,920 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:06:29,920 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:06:29,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:06:29,941 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 1 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 02:06:29,942 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:06:29,942 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [864517481] [2021-10-25 02:06:29,943 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [864517481] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 02:06:29,943 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 02:06:29,943 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-10-25 02:06:29,948 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2007103941] [2021-10-25 02:06:29,948 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-10-25 02:06:29,948 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:06:29,948 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-10-25 02:06:29,949 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-10-25 02:06:29,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:06:29,949 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:06:29,949 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 3.4) internal successors, (17), 5 states have internal predecessors, (17), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 02:06:29,949 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 02:06:29,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-10-25 02:06:29,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 02:06:29,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 02:06:29,950 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:06:29,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 02:06:29,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-25 02:06:29,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 02:06:29,975 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 02:06:29,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 02:06:29,976 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-10-25 02:06:29,976 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2021-10-25 02:06:29,976 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-10-25 02:06:29,976 INFO L82 PathProgramCache]: Analyzing trace with hash 1950659810, now seen corresponding path program 1 times [2021-10-25 02:06:29,976 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-10-25 02:06:29,976 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [486191949] [2021-10-25 02:06:29,977 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-10-25 02:06:29,977 INFO L128 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2021-10-25 02:06:29,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-10-25 02:06:30,052 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-10-25 02:06:30,052 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-10-25 02:06:30,052 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [486191949] [2021-10-25 02:06:30,052 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [486191949] provided 1 perfect and 0 imperfect interpolant sequences [2021-10-25 02:06:30,052 INFO L186 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-10-25 02:06:30,052 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-10-25 02:06:30,052 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1474652645] [2021-10-25 02:06:30,053 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2021-10-25 02:06:30,053 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-10-25 02:06:30,053 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-10-25 02:06:30,053 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2021-10-25 02:06:30,053 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:06:30,053 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2021-10-25 02:06:30,054 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 1.6666666666666667) internal successors, (15), 8 states have internal predecessors, (15), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-10-25 02:06:30,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 10 states. [2021-10-25 02:06:30,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 21 states. [2021-10-25 02:06:30,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 17 states. [2021-10-25 02:06:30,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 9 states. [2021-10-25 02:06:30,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 5 states. [2021-10-25 02:06:30,054 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2021-10-25 02:06:30,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-10-25 02:06:30,162 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-10-25 02:06:30,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2021-10-25 02:06:30,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 02:06:30,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-10-25 02:06:30,163 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-10-25 02:06:30,165 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT [2021-10-25 02:06:30,165 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION [2021-10-25 02:06:30,165 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION [2021-10-25 02:06:30,166 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-10-25 02:06:30,173 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-10-25 02:06:30,173 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-10-25 02:06:30,175 INFO L202 PluginConnector]: Adding new model easy11.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.10 02:06:30 BasicIcfg [2021-10-25 02:06:30,175 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-10-25 02:06:30,176 INFO L168 Benchmark]: Toolchain (without parser) took 4026.84 ms. Allocated memory was 189.8 MB in the beginning and 246.4 MB in the end (delta: 56.6 MB). Free memory was 147.6 MB in the beginning and 173.2 MB in the end (delta: -25.7 MB). Peak memory consumption was 33.3 MB. Max. memory is 8.0 GB. [2021-10-25 02:06:30,176 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.10 ms. Allocated memory is still 189.8 MB. Free memory is still 148.6 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-10-25 02:06:30,176 INFO L168 Benchmark]: Boogie Procedure Inliner took 19.84 ms. Allocated memory is still 189.8 MB. Free memory was 147.5 MB in the beginning and 146.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2021-10-25 02:06:30,177 INFO L168 Benchmark]: Boogie Preprocessor took 9.73 ms. Allocated memory is still 189.8 MB. Free memory was 146.0 MB in the beginning and 145.0 MB in the end (delta: 941.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-10-25 02:06:30,177 INFO L168 Benchmark]: RCFGBuilder took 181.16 ms. Allocated memory is still 189.8 MB. Free memory was 145.0 MB in the beginning and 134.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. [2021-10-25 02:06:30,177 INFO L168 Benchmark]: TraceAbstraction took 3809.39 ms. Allocated memory was 189.8 MB in the beginning and 246.4 MB in the end (delta: 56.6 MB). Free memory was 134.4 MB in the beginning and 173.2 MB in the end (delta: -38.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. [2021-10-25 02:06:30,178 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 0.10 ms. Allocated memory is still 189.8 MB. Free memory is still 148.6 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 19.84 ms. Allocated memory is still 189.8 MB. Free memory was 147.5 MB in the beginning and 146.0 MB in the end (delta: 1.5 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.73 ms. Allocated memory is still 189.8 MB. Free memory was 146.0 MB in the beginning and 145.0 MB in the end (delta: 941.7 kB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 181.16 ms. Allocated memory is still 189.8 MB. Free memory was 145.0 MB in the beginning and 134.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 9.4 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3809.39 ms. Allocated memory was 189.8 MB in the beginning and 246.4 MB in the end (delta: 56.6 MB). Free memory was 134.4 MB in the beginning and 173.2 MB in the end (delta: -38.8 MB). Peak memory consumption was 18.7 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 369, positive: 304, positive conditional: 168, positive unconditional: 136, negative: 65, negative conditional: 64, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 305, positive: 304, positive conditional: 0, positive unconditional: 304, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 121, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 121, positive: 118, positive conditional: 0, positive unconditional: 118, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 40, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 305, positive: 184, positive conditional: 0, positive unconditional: 184, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 121, unknown conditional: 0, unknown unconditional: 121] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Independence queries for same thread: 64 - StatisticsResult: Persistent set benchmarks Persistent set computation time[ms]: 69, Number of persistent set computation: 40, Number of trivial persistent sets: 15, Underlying independence relation: ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 369, positive: 304, positive conditional: 168, positive unconditional: 136, negative: 65, negative conditional: 64, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 305, positive: 304, positive conditional: 0, positive unconditional: 304, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 121, positive: 120, positive conditional: 0, positive unconditional: 120, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 121, positive: 118, positive conditional: 0, positive unconditional: 118, negative: 3, negative conditional: 0, negative unconditional: 3, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 3, positive: 2, positive conditional: 0, positive unconditional: 2, negative: 1, negative conditional: 0, negative unconditional: 1, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 40, positive: 9, positive conditional: 0, positive unconditional: 9, negative: 31, negative conditional: 0, negative unconditional: 31, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 305, positive: 184, positive conditional: 0, positive unconditional: 184, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 121, unknown conditional: 0, unknown unconditional: 121] , Statistics on independence cache: Total cache size (in pairs): 121, Positive cache size: 120, Positive conditional cache size: 0, Positive unconditional cache size: 120, Negative cache size: 1, Negative conditional cache size: 0, Negative unconditional cache size: 1, Independence queries for same thread: 64 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - PositiveResult [Line: 43]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 36 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 3675.0ms, OverallIterations: 6, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.8ms, PartialOrderReductionTime: 1138.6ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 71, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 15.6ms SsaConstructionTime, 64.7ms SatisfiabilityAnalysisTime, 1258.1ms InterpolantComputationTime, 200 NumberOfCodeBlocks, 200 NumberOfCodeBlocksAsserted, 15 NumberOfCheckSat, 190 ConstructedInterpolants, 0 QuantifiedInterpolants, 850 SizeOfPredicates, 11 NumberOfNonLiveVariables, 160 ConjunctsInSsa, 39 ConjunctsInUnsatCore, 10 InterpolantComputations, 2 PerfectInterpolantSequences, 22/45 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 - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! [2021-10-25 02:06:30,202 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Forceful destruction successful, exit code 0 [2021-10-25 02:06:30,411 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...