/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.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_5.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-?-bc289cb [2022-01-29 07:01:26,824 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-01-29 07:01:26,826 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-01-29 07:01:26,880 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2022-01-29 07:01:26,920 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.epf [2022-01-29 07:01:26,943 INFO L113 SettingsManager]: Loading preferences was successful [2022-01-29 07:01:26,943 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-01-29 07:01:26,944 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-01-29 07:01:26,944 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-01-29 07:01:26,945 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-01-29 07:01:26,945 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-01-29 07:01:26,945 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-01-29 07:01:26,945 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-01-29 07:01:26,946 INFO L138 SettingsManager]: * Use SBE=true [2022-01-29 07:01:26,946 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-01-29 07:01:26,946 INFO L138 SettingsManager]: * sizeof long=4 [2022-01-29 07:01:26,946 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-01-29 07:01:26,946 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-01-29 07:01:26,947 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-01-29 07:01:26,947 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-01-29 07:01:26,947 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-01-29 07:01:26,947 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-01-29 07:01:26,947 INFO L138 SettingsManager]: * sizeof long double=12 [2022-01-29 07:01:26,948 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-01-29 07:01:26,948 INFO L138 SettingsManager]: * Use constant arrays=true [2022-01-29 07:01:26,948 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-01-29 07:01:26,948 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-01-29 07:01:26,948 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-01-29 07:01:26,949 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-01-29 07:01:26,949 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-01-29 07:01:26,949 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 07:01:26,949 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-01-29 07:01:26,949 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-01-29 07:01:26,950 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-01-29 07:01:26,950 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-01-29 07:01:26,950 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-01-29 07:01:26,950 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-01-29 07:01:26,950 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-01-29 07:01:26,950 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-01-29 07:01:26,951 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITH_DEPRANKS [2022-01-29 07:01:26,951 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-01-29 07:01:27,135 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-01-29 07:01:27,155 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-01-29 07:01:27,157 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-01-29 07:01:27,158 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-01-29 07:01:27,160 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-01-29 07:01:27,161 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_5.bpl [2022-01-29 07:01:27,163 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_5.bpl' [2022-01-29 07:01:27,186 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-01-29 07:01:27,187 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-01-29 07:01:27,189 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-01-29 07:01:27,190 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-01-29 07:01:27,190 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-01-29 07:01:27,199 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:01:27" (1/1) ... [2022-01-29 07:01:27,206 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:01:27" (1/1) ... [2022-01-29 07:01:27,212 INFO L137 Inliner]: procedures = 6, calls = 5, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-01-29 07:01:27,213 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-01-29 07:01:27,215 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-01-29 07:01:27,215 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-01-29 07:01:27,215 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-01-29 07:01:27,221 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:01:27" (1/1) ... [2022-01-29 07:01:27,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:01:27" (1/1) ... [2022-01-29 07:01:27,222 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:01:27" (1/1) ... [2022-01-29 07:01:27,222 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:01:27" (1/1) ... [2022-01-29 07:01:27,224 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:01:27" (1/1) ... [2022-01-29 07:01:27,225 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:01:27" (1/1) ... [2022-01-29 07:01:27,225 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:01:27" (1/1) ... [2022-01-29 07:01:27,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-01-29 07:01:27,227 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-01-29 07:01:27,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-01-29 07:01:27,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-01-29 07:01:27,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:01:27" (1/1) ... [2022-01-29 07:01:27,235 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-01-29 07:01:27,242 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:01:27,256 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) [2022-01-29 07:01:27,265 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 [2022-01-29 07:01:27,293 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2022-01-29 07:01:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2022-01-29 07:01:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2022-01-29 07:01:27,293 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2022-01-29 07:01:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2022-01-29 07:01:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2022-01-29 07:01:27,293 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_3 given in one single declaration [2022-01-29 07:01:27,293 INFO L130 BoogieDeclarations]: Found specification of procedure set_3 [2022-01-29 07:01:27,293 INFO L138 BoogieDeclarations]: Found implementation of procedure set_3 [2022-01-29 07:01:27,294 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_4 given in one single declaration [2022-01-29 07:01:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure set_4 [2022-01-29 07:01:27,294 INFO L138 BoogieDeclarations]: Found implementation of procedure set_4 [2022-01-29 07:01:27,294 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2022-01-29 07:01:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2022-01-29 07:01:27,294 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2022-01-29 07:01:27,294 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-01-29 07:01:27,294 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-01-29 07:01:27,294 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-01-29 07:01:27,295 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-01-29 07:01:27,329 INFO L234 CfgBuilder]: Building ICFG [2022-01-29 07:01:27,330 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-01-29 07:01:27,422 INFO L275 CfgBuilder]: Performing block encoding [2022-01-29 07:01:27,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-01-29 07:01:27,430 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-01-29 07:01:27,432 INFO L202 PluginConnector]: Adding new model example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 07:01:27 BoogieIcfgContainer [2022-01-29 07:01:27,432 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-01-29 07:01:27,436 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-01-29 07:01:27,436 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-01-29 07:01:27,439 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-01-29 07:01:27,439 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_5.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 29.01 07:01:27" (1/2) ... [2022-01-29 07:01:27,440 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3199dfc4 and model type example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 29.01 07:01:27, skipping insertion in model container [2022-01-29 07:01:27,440 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 29.01 07:01:27" (2/2) ... [2022-01-29 07:01:27,442 INFO L111 eAbstractionObserver]: Analyzing ICFG example_5.bpl [2022-01-29 07:01:27,446 WARN L149 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-01-29 07:01:27,447 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-01-29 07:01:27,447 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-01-29 07:01:27,447 INFO L513 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-01-29 07:01:27,506 INFO L148 ThreadInstanceAdder]: Constructed 25 joinOtherThreadTransitions. [2022-01-29 07:01:27,564 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-01-29 07:01:27,564 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-01-29 07:01:27,567 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) [2022-01-29 07:01:27,577 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 [2022-01-29 07:01:27,597 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-01-29 07:01:27,606 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, 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 [2022-01-29 07:01:27,606 INFO L340 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2022-01-29 07:01:28,650 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-29 07:01:28,655 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:01:28,656 INFO L85 PathProgramCache]: Analyzing trace with hash 125978475, now seen corresponding path program 1 times [2022-01-29 07:01:28,663 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:01:28,663 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472382828] [2022-01-29 07:01:28,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:01:28,664 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:01:28,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:01:28,856 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:01:28,857 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:01:28,857 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472382828] [2022-01-29 07:01:28,858 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472382828] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 07:01:28,858 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 07:01:28,858 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 07:01:28,859 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939104636] [2022-01-29 07:01:28,860 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 07:01:28,864 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 07:01:28,865 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:01:28,882 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 07:01:28,883 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 07:01:28,884 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:28,885 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:01:28,887 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) [2022-01-29 07:01:28,887 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:29,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:29,030 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-01-29 07:01:29,030 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-29 07:01:29,032 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:01:29,032 INFO L85 PathProgramCache]: Analyzing trace with hash 126929865, now seen corresponding path program 1 times [2022-01-29 07:01:29,033 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:01:29,033 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [800314251] [2022-01-29 07:01:29,034 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:01:29,034 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:01:29,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:01:29,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:01:29,073 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:01:29,074 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [800314251] [2022-01-29 07:01:29,074 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [800314251] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 07:01:29,074 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 07:01:29,074 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 07:01:29,074 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1995870508] [2022-01-29 07:01:29,075 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 07:01:29,076 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 07:01:29,076 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:01:29,076 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 07:01:29,077 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 07:01:29,077 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:29,077 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:01:29,077 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) [2022-01-29 07:01:29,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:29,077 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:29,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:29,241 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:29,242 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-01-29 07:01:29,242 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-29 07:01:29,243 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:01:29,243 INFO L85 PathProgramCache]: Analyzing trace with hash 127823595, now seen corresponding path program 1 times [2022-01-29 07:01:29,244 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:01:29,245 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1620348507] [2022-01-29 07:01:29,245 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:01:29,245 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:01:29,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:01:29,294 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:01:29,294 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:01:29,295 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1620348507] [2022-01-29 07:01:29,295 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1620348507] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 07:01:29,295 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 07:01:29,295 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-01-29 07:01:29,295 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1145421979] [2022-01-29 07:01:29,295 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 07:01:29,296 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2022-01-29 07:01:29,296 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:01:29,296 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2022-01-29 07:01:29,297 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2022-01-29 07:01:29,297 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:29,297 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:01:29,297 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 7.0) internal successors, (21), 3 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) [2022-01-29 07:01:29,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:29,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:29,297 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:29,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:29,357 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2022-01-29 07:01:29,357 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-29 07:01:29,380 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:01:29,380 INFO L85 PathProgramCache]: Analyzing trace with hash 128747085, now seen corresponding path program 1 times [2022-01-29 07:01:29,380 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:01:29,380 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1554584593] [2022-01-29 07:01:29,380 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:01:29,381 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:01:29,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:01:29,774 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:01:29,775 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:01:29,775 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1554584593] [2022-01-29 07:01:29,775 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1554584593] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 07:01:29,775 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 07:01:29,775 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-29 07:01:29,775 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1919601763] [2022-01-29 07:01:29,776 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 07:01:29,776 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-29 07:01:29,776 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:01:29,777 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-29 07:01:29,777 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-29 07:01:29,777 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:29,777 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:01:29,777 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) 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) [2022-01-29 07:01:29,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:29,777 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:29,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:29,778 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:30,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:30,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:30,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:30,118 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:30,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2022-01-29 07:01:30,119 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-29 07:01:30,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:01:30,119 INFO L85 PathProgramCache]: Analyzing trace with hash 225311413, now seen corresponding path program 2 times [2022-01-29 07:01:30,120 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:01:30,120 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [253492729] [2022-01-29 07:01:30,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:01:30,120 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:01:30,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:01:30,308 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:01:30,309 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:01:30,309 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [253492729] [2022-01-29 07:01:30,309 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [253492729] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 07:01:30,309 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 07:01:30,309 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-29 07:01:30,310 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1726153453] [2022-01-29 07:01:30,310 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 07:01:30,310 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-29 07:01:30,310 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:01:30,311 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-29 07:01:30,311 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-29 07:01:30,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:30,311 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:01:30,311 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) 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) [2022-01-29 07:01:30,311 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:30,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:30,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:30,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:30,312 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:30,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:30,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:30,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:30,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:30,562 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:30,563 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2022-01-29 07:01:30,563 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-29 07:01:30,564 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:01:30,564 INFO L85 PathProgramCache]: Analyzing trace with hash 1927904009, now seen corresponding path program 3 times [2022-01-29 07:01:30,564 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:01:30,564 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1997711743] [2022-01-29 07:01:30,564 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:01:30,564 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:01:30,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:01:30,762 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:01:30,762 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:01:30,763 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1997711743] [2022-01-29 07:01:30,764 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1997711743] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 07:01:30,764 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 07:01:30,764 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-29 07:01:30,764 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1938537283] [2022-01-29 07:01:30,764 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 07:01:30,765 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-29 07:01:30,765 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:01:30,767 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-29 07:01:30,768 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-29 07:01:30,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:30,768 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:01:30,768 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) 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) [2022-01-29 07:01:30,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:30,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:30,768 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:30,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:30,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:30,769 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:31,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:31,079 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:31,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:31,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,080 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2022-01-29 07:01:31,080 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-29 07:01:31,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:01:31,081 INFO L85 PathProgramCache]: Analyzing trace with hash -277064967, now seen corresponding path program 4 times [2022-01-29 07:01:31,081 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:01:31,081 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [219926763] [2022-01-29 07:01:31,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:01:31,082 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:01:31,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:01:31,263 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:01:31,263 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:01:31,264 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [219926763] [2022-01-29 07:01:31,264 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [219926763] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 07:01:31,267 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 07:01:31,268 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-29 07:01:31,268 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1036168628] [2022-01-29 07:01:31,268 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 07:01:31,269 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-29 07:01:31,269 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:01:31,270 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-29 07:01:31,270 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-29 07:01:31,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:31,270 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:01:31,270 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) 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) [2022-01-29 07:01:31,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:31,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:31,270 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:31,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,271 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:31,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:31,663 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:31,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:31,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,664 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2022-01-29 07:01:31,666 INFO L402 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION (and 2 more)] === [2022-01-29 07:01:31,666 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-01-29 07:01:31,669 INFO L85 PathProgramCache]: Analyzing trace with hash -507304507, now seen corresponding path program 5 times [2022-01-29 07:01:31,674 INFO L121 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-01-29 07:01:31,675 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1365766480] [2022-01-29 07:01:31,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-01-29 07:01:31,675 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-01-29 07:01:31,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-01-29 07:01:31,821 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-01-29 07:01:31,822 INFO L139 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-01-29 07:01:31,822 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1365766480] [2022-01-29 07:01:31,822 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1365766480] provided 1 perfect and 0 imperfect interpolant sequences [2022-01-29 07:01:31,822 INFO L186 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-01-29 07:01:31,822 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2022-01-29 07:01:31,822 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904266560] [2022-01-29 07:01:31,822 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-01-29 07:01:31,823 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2022-01-29 07:01:31,823 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-01-29 07:01:31,823 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2022-01-29 07:01:31,823 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2022-01-29 07:01:31,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:31,824 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-01-29 07:01:31,824 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 6 states have (on average 3.5) 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) [2022-01-29 07:01:31,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:31,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:31,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:31,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:31,824 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-01-29 07:01:32,042 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2022-01-29 07:01:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:32,043 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:32,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2022-01-29 07:01:32,046 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (5 of 6 remaining) [2022-01-29 07:01:32,046 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (4 of 6 remaining) [2022-01-29 07:01:32,047 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (3 of 6 remaining) [2022-01-29 07:01:32,047 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (2 of 6 remaining) [2022-01-29 07:01:32,047 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr3INUSE_VIOLATION (1 of 6 remaining) [2022-01-29 07:01:32,047 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr4INUSE_VIOLATION (0 of 6 remaining) [2022-01-29 07:01:32,047 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2022-01-29 07:01:32,053 INFO L732 BasicCegarLoop]: Path program histogram: [5, 1, 1, 1] [2022-01-29 07:01:32,055 INFO L229 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-01-29 07:01:32,055 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2022-01-29 07:01:32,057 INFO L202 PluginConnector]: Adding new model example_5.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 29.01 07:01:32 BasicIcfg [2022-01-29 07:01:32,057 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-01-29 07:01:32,058 INFO L158 Benchmark]: Toolchain (without parser) took 4870.27ms. Allocated memory was 203.4MB in the beginning and 311.4MB in the end (delta: 108.0MB). Free memory was 159.7MB in the beginning and 152.7MB in the end (delta: 7.0MB). Peak memory consumption was 115.8MB. Max. memory is 8.0GB. [2022-01-29 07:01:32,058 INFO L158 Benchmark]: Boogie PL CUP Parser took 1.44ms. Allocated memory is still 203.4MB. Free memory is still 161.2MB. There was no memory consumed. Max. memory is 8.0GB. [2022-01-29 07:01:32,058 INFO L158 Benchmark]: Boogie Procedure Inliner took 24.13ms. Allocated memory is still 203.4MB. Free memory was 159.5MB in the beginning and 158.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 07:01:32,058 INFO L158 Benchmark]: Boogie Preprocessor took 11.54ms. Allocated memory is still 203.4MB. Free memory was 158.0MB in the beginning and 157.1MB in the end (delta: 880.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-01-29 07:01:32,059 INFO L158 Benchmark]: RCFGBuilder took 205.25ms. Allocated memory is still 203.4MB. Free memory was 157.1MB in the beginning and 148.8MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-01-29 07:01:32,059 INFO L158 Benchmark]: TraceAbstraction took 4621.37ms. Allocated memory was 203.4MB in the beginning and 311.4MB in the end (delta: 108.0MB). Free memory was 148.4MB in the beginning and 152.7MB in the end (delta: -4.3MB). Peak memory consumption was 104.3MB. Max. memory is 8.0GB. [2022-01-29 07:01:32,060 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 1.44ms. Allocated memory is still 203.4MB. Free memory is still 161.2MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 24.13ms. Allocated memory is still 203.4MB. Free memory was 159.5MB in the beginning and 158.0MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.54ms. Allocated memory is still 203.4MB. Free memory was 158.0MB in the beginning and 157.1MB in the end (delta: 880.2kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 205.25ms. Allocated memory is still 203.4MB. Free memory was 157.1MB in the beginning and 148.8MB in the end (delta: 8.3MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 4621.37ms. Allocated memory was 203.4MB in the beginning and 311.4MB in the end (delta: 108.0MB). Free memory was 148.4MB in the beginning and 152.7MB in the end (delta: -4.3MB). Peak memory consumption was 104.3MB. 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 - PositiveResult [Line: 23]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 11 procedures, 49 locations, 6 error locations. Started 1 CEGAR loops. OverallTime: 4.5s, OverallIterations: 8, TraceHistogramMax: 0, PathProgramHistogramMax: 5, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 2.9s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 44, 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: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 1.2s InterpolantComputationTime, 168 NumberOfCodeBlocks, 168 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 160 ConstructedInterpolants, 0 QuantifiedInterpolants, 2344 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 PerfectInterpolantSequences, 0/0 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! [2022-01-29 07:01:32,095 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 [2022-01-29 07:01:32,300 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...