/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/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/exp-term-subst.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-c7b2d19 [2022-03-15 21:02:36,869 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-15 21:02:36,870 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-15 21:02:36,900 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-15 21:02:36,901 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-15 21:02:36,901 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-15 21:02:36,903 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-15 21:02:36,904 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-15 21:02:36,906 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-15 21:02:36,906 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-15 21:02:36,907 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-15 21:02:36,908 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... 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[2022-03-15 21:02:36,929 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-15 21:02:36,929 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-15 21:02:36,930 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-15 21:02:36,931 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/mcr/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-McrAutomaton-WP.epf [2022-03-15 21:02:36,950 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-15 21:02:36,950 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-15 21:02:36,951 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-15 21:02:36,951 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-15 21:02:36,951 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-15 21:02:36,951 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-15 21:02:36,951 INFO L138 SettingsManager]: * Use SBE=true [2022-03-15 21:02:36,952 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-15 21:02:36,952 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-15 21:02:36,952 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-15 21:02:36,952 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-15 21:02:36,952 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-15 21:02:36,952 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-15 21:02:36,952 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-15 21:02:36,952 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-15 21:02:36,953 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-15 21:02:36,953 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-15 21:02:36,953 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-15 21:02:36,953 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-15 21:02:36,953 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-15 21:02:36,953 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-15 21:02:36,953 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-15 21:02:36,953 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-15 21:02:36,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 21:02:36,954 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-15 21:02:36,954 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=Craig_NestedInterpolation [2022-03-15 21:02:36,954 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-15 21:02:36,954 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-15 21:02:36,954 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-15 21:02:36,954 INFO L138 SettingsManager]: * Override the interpolant automaton setting of the refinement strategy=true [2022-03-15 21:02:36,954 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=VARIABLE_BASED_MOVER_CHECK [2022-03-15 21:02:36,955 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-15 21:02:36,955 INFO L138 SettingsManager]: * Interpolant automaton=MCR WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-15 21:02:37,156 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-15 21:02:37,174 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-15 21:02:37,176 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-15 21:02:37,177 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-15 21:02:37,178 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-15 21:02:37,179 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/exp-term-subst.wvr.bpl [2022-03-15 21:02:37,179 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/exp-term-subst.wvr.bpl' [2022-03-15 21:02:37,201 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-15 21:02:37,202 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-15 21:02:37,209 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-15 21:02:37,209 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-15 21:02:37,209 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-15 21:02:37,219 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:37" (1/1) ... [2022-03-15 21:02:37,224 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:37" (1/1) ... [2022-03-15 21:02:37,236 INFO L137 Inliner]: procedures = 4, calls = 3, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-15 21:02:37,238 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-15 21:02:37,239 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-15 21:02:37,239 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-15 21:02:37,239 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-15 21:02:37,246 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:37" (1/1) ... [2022-03-15 21:02:37,246 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:37" (1/1) ... [2022-03-15 21:02:37,248 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:37" (1/1) ... [2022-03-15 21:02:37,248 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:37" (1/1) ... [2022-03-15 21:02:37,252 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:37" (1/1) ... [2022-03-15 21:02:37,253 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:37" (1/1) ... [2022-03-15 21:02:37,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:37" (1/1) ... [2022-03-15 21:02:37,258 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-15 21:02:37,260 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-15 21:02:37,260 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-15 21:02:37,260 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-15 21:02:37,262 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:37" (1/1) ... [2022-03-15 21:02:37,268 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-15 21:02:37,277 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-15 21:02:37,291 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-03-15 21:02:37,295 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-03-15 21:02:37,331 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-15 21:02:37,331 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-15 21:02:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-15 21:02:37,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-15 21:02:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-15 21:02:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-15 21:02:37,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-15 21:02:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-15 21:02:37,332 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-15 21:02:37,332 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2022-03-15 21:02:37,332 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-03-15 21:02:37,333 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-03-15 21:02:37,333 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-15 21:02:37,370 INFO L234 CfgBuilder]: Building ICFG [2022-03-15 21:02:37,371 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-15 21:02:37,468 INFO L275 CfgBuilder]: Performing block encoding [2022-03-15 21:02:37,475 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-15 21:02:37,476 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-15 21:02:37,478 INFO L202 PluginConnector]: Adding new model exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 09:02:37 BoogieIcfgContainer [2022-03-15 21:02:37,479 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-15 21:02:37,482 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-15 21:02:37,482 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-15 21:02:37,485 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-15 21:02:37,485 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 15.03 09:02:37" (1/2) ... [2022-03-15 21:02:37,487 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4adaee0d and model type exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 15.03 09:02:37, skipping insertion in model container [2022-03-15 21:02:37,487 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 15.03 09:02:37" (2/2) ... [2022-03-15 21:02:37,495 INFO L111 eAbstractionObserver]: Analyzing ICFG exp-term-subst.wvr.bpl [2022-03-15 21:02:37,499 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-15 21:02:37,499 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2022-03-15 21:02:37,499 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-15 21:02:37,499 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-15 21:02:37,552 INFO L148 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-03-15 21:02:37,616 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-15 21:02:37,622 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=Craig_NestedInterpolation, mInterpolantAutomaton=MCR, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mLazyFiniteAutomaton=false, 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=true, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-15 21:02:37,622 INFO L340 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2022-03-15 21:02:37,630 INFO L126 etLargeBlockEncoding]: Petri net LBE is using variable-based independence relation. [2022-03-15 21:02:37,637 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 29 places, 19 transitions, 62 flow [2022-03-15 21:02:37,639 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 29 places, 19 transitions, 62 flow [2022-03-15 21:02:37,640 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 29 places, 19 transitions, 62 flow [2022-03-15 21:02:37,665 INFO L129 PetriNetUnfolder]: 0/16 cut-off events. [2022-03-15 21:02:37,665 INFO L130 PetriNetUnfolder]: For 3/3 co-relation queries the response was YES. [2022-03-15 21:02:37,667 INFO L84 FinitePrefix]: Finished finitePrefix Result has 29 conditions, 16 events. 0/16 cut-off events. For 3/3 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 12 event pairs, 0 based on Foata normal form. 0/15 useless extension candidates. Maximal degree in co-relation 0. Up to 2 conditions per place. [2022-03-15 21:02:37,667 INFO L116 LiptonReduction]: Number of co-enabled transitions 48 [2022-03-15 21:02:37,881 INFO L131 LiptonReduction]: Checked pairs total: 48 [2022-03-15 21:02:37,881 INFO L133 LiptonReduction]: Total number of compositions: 6 [2022-03-15 21:02:37,889 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 14 transitions, 52 flow [2022-03-15 21:02:37,902 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 23 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:02:37,904 INFO L276 IsEmpty]: Start isEmpty. Operand has 23 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:02:37,908 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-03-15 21:02:37,908 INFO L506 BasicCegarLoop]: Found error trace [2022-03-15 21:02:37,908 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-15 21:02:37,909 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION] === [2022-03-15 21:02:37,913 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-15 21:02:37,913 INFO L85 PathProgramCache]: Analyzing trace with hash 807004415, now seen corresponding path program 1 times [2022-03-15 21:02:37,928 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-15 21:02:37,928 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1506872612] [2022-03-15 21:02:37,928 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-15 21:02:37,929 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-15 21:02:38,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-15 21:02:38,736 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-15 21:02:38,737 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-15 21:02:38,737 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1506872612] [2022-03-15 21:02:38,738 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1506872612] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-15 21:02:38,738 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-15 21:02:38,738 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-15 21:02:38,740 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleMcr [873223880] [2022-03-15 21:02:38,740 INFO L194 McrAutomatonBuilder]: Constructing automaton for MCR equivalence class. [2022-03-15 21:02:38,745 INFO L249 McrAutomatonBuilder]: Started intersection. [2022-03-15 21:02:38,764 INFO L252 McrAutomatonBuilder]: Finished intersection with 23 states and 37 transitions. [2022-03-15 21:02:38,764 INFO L276 McrAutomatonBuilder]: Constructing interpolant automaton by labelling MCR automaton with interpolants from WpInterpolantProvider [2022-03-15 21:02:44,271 INFO L301 McrAutomatonBuilder]: Construction finished. MCR generated 7 new interpolants: [83#(and (or (not (= sort_label_2 sort_label_0)) (= result_8 0) (not (= result_7 0)) sort_label_is_null_1 sort_label_is_null_3) (or (not sort_label_is_null_3) (= result_8 0) (not sort_label_is_null_1) (not (= result_7 0))) (or (not sort_label_is_null_3) (not sort_label_is_null_1) (= result_7 1) (<= result_8 result_7)) (or (not (= sort_label_2 sort_label_0)) sort_label_is_null_1 sort_label_is_null_3 (= result_7 1) (<= result_8 result_7)) (or (not sort_label_is_null_3) (not sort_label_is_null_1) (<= result_7 result_8) (<= result_7 0)) (or (not (= sort_label_2 sort_label_0)) (<= result_7 result_8) sort_label_is_null_1 sort_label_is_null_3 (<= result_7 0))), 88#(and (or (not sort_label_is_null_3) (not (= result_6 0)) sort_label_is_null_1 (<= sort_label_0 sort_label_4)) (or (not sort_label_is_null_3) (not (= sort_label_4 sort_label_0)) (not (= result_6 0)) sort_label_is_null_1) (or (not sort_label_is_null_1) (not (= result_6 0)) sort_label_is_null_3 (<= (+ sort_label_2 1) sort_label_4)) (or (<= sort_label_0 sort_label_2) (not (= result_6 0)) sort_label_is_null_1 sort_label_is_null_5 (<= sort_label_0 sort_label_4)) (or (<= sort_label_2 sort_label_0) (not (= result_6 0)) (= sort_label_0 (+ sort_label_4 1)) sort_label_is_null_1 sort_label_is_null_5 sort_label_is_null_3) (or (not sort_label_is_null_3) (not (= result_6 0)) sort_label_is_null_1 (<= sort_label_4 (+ sort_label_0 1))) (or (not sort_label_is_null_3) (not sort_label_is_null_5) (not (= result_6 0)) sort_label_is_null_1) (or (not sort_label_is_null_1) (not sort_label_is_null_5) (not (= result_6 0)) sort_label_is_null_3) (or (not (= sort_label_4 sort_label_0)) (= sort_label_4 sort_label_2) (not (= result_6 0)) sort_label_is_null_1 sort_label_is_null_5)), 86#(and (or (not (= sort_label_2 sort_label_0)) (not sort_label_is_null_5) sort_label_is_null_1 sort_label_is_null_3 (<= 1 result_8)) (or (not (= sort_label_2 sort_label_0)) (= result_8 0) (not (= sort_label_4 sort_label_0)) sort_label_is_null_1 sort_label_is_null_5 sort_label_is_null_3) (or (<= sort_label_0 (+ sort_label_4 result_8)) (not (= sort_label_2 sort_label_0)) sort_label_is_null_1 sort_label_is_null_5 sort_label_is_null_3 (<= sort_label_0 sort_label_4)) (or (not sort_label_is_null_3) (not sort_label_is_null_1) (<= (+ result_8 1) 0) sort_label_is_null_5) (or (not sort_label_is_null_3) (= result_8 0) (not sort_label_is_null_1) (not sort_label_is_null_5)) (or (not (= sort_label_2 sort_label_0)) (<= (+ sort_label_4 result_8) sort_label_0) (= sort_label_0 (+ sort_label_4 1)) sort_label_is_null_1 sort_label_is_null_5 sort_label_is_null_3)), 84#(and (or (not sort_label_is_null_3) (not sort_label_is_null_1) (<= result_7 0)) (or (<= sort_label_2 (+ sort_label_4 result_7)) (not (= sort_label_2 sort_label_0)) sort_label_is_null_1 sort_label_is_null_5 sort_label_is_null_3) (or (not (= sort_label_2 sort_label_0)) (not sort_label_is_null_5) sort_label_is_null_1 sort_label_is_null_3 (= result_7 1)) (or (not (= sort_label_2 sort_label_0)) (<= (+ sort_label_4 result_7) sort_label_2) sort_label_is_null_1 sort_label_is_null_5 sort_label_is_null_3) (or (not sort_label_is_null_3) (not sort_label_is_null_1) (<= 0 (+ result_7 1))) (or (not sort_label_is_null_3) (not sort_label_is_null_1) (not (= result_7 0)) sort_label_is_null_5) (or (not sort_label_is_null_3) (<= 0 result_7) (not sort_label_is_null_1) (not sort_label_is_null_5))), 87#(and (or (not sort_label_is_null_3) (not (= result_7 0)) (not (= result_6 0)) sort_label_is_null_5) (or (not (= result_7 0)) (= sort_label_4 sort_label_2) (not (= result_6 0)) sort_label_is_null_3) (or (not sort_label_is_null_5) (not (= result_6 0)) sort_label_is_null_3 (<= 1 result_7)) (or (<= sort_label_2 (+ sort_label_4 result_7)) (not (= result_6 0)) sort_label_is_null_3 (= result_7 1)) (or (<= result_7 1) (not sort_label_is_null_5) (not (= result_6 0))) (or (not sort_label_is_null_3) (<= 0 (+ result_7 1)) (not (= result_6 0))) (or (not sort_label_is_null_3) (not sort_label_is_null_5) (= result_7 0) (not (= result_6 0))) (or (<= (+ sort_label_4 result_7) sort_label_2) (not (= result_6 0)) sort_label_is_null_5 (<= result_7 0)) (or (not sort_label_is_null_3) (not (= result_6 0)) (<= result_7 0))), 85#(and (or (<= (+ sort_label_4 result_8) sort_label_0) (not (= result_6 0)) (= (+ sort_label_0 (* sort_label_4 (- 1))) 1) sort_label_is_null_1 sort_label_is_null_5) (or (not sort_label_is_null_5) (not (= result_6 0)) sort_label_is_null_1 (<= 1 result_8)) (or (= result_8 0) (not sort_label_is_null_1) (not sort_label_is_null_5) (not (= result_6 0))) (or (<= sort_label_0 (+ sort_label_4 result_8)) (not (= result_6 0)) sort_label_is_null_1 sort_label_is_null_5 (<= sort_label_0 sort_label_4)) (or (not sort_label_is_null_1) (<= (+ result_8 1) 0) (not (= result_6 0)) sort_label_is_null_5) (or (= result_8 0) (not (= sort_label_4 sort_label_0)) (not (= result_6 0)) sort_label_is_null_1 sort_label_is_null_5)), 89#(and (or (not sort_label_is_null_1) (not (= result_6 0)) sort_label_is_null_3 (<= (+ sort_label_2 1) sort_label_4)) (or (<= sort_label_2 sort_label_0) (not (= result_6 0)) sort_label_is_null_1 sort_label_is_null_5 sort_label_is_null_3) (or (not sort_label_is_null_3) (= result_6 1) (not sort_label_is_null_5) sort_label_is_null_1) (or (not sort_label_is_null_1) (<= sort_label_4 (+ sort_label_2 1)) (not (= result_6 0)) sort_label_is_null_3) (or (not sort_label_is_null_3) (= result_6 1) (= sort_label_4 (+ sort_label_0 1)) sort_label_is_null_1) (or (<= sort_label_0 sort_label_2) (not (= result_6 0)) sort_label_is_null_1 sort_label_is_null_5 sort_label_is_null_3) (or (not sort_label_is_null_1) (not sort_label_is_null_5) (not (= result_6 0)) sort_label_is_null_3))] [2022-03-15 21:02:44,273 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-03-15 21:02:44,273 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-15 21:02:44,294 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-03-15 21:02:44,295 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=25, Invalid=107, Unknown=0, NotChecked=0, Total=132 [2022-03-15 21:02:44,296 INFO L87 Difference]: Start difference. First operand has 23 states, 22 states have (on average 1.6818181818181819) internal successors, (37), 22 states have internal predecessors, (37), 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) Second operand has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:02:45,085 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-15 21:02:45,085 INFO L93 Difference]: Finished difference Result 22 states and 36 transitions. [2022-03-15 21:02:45,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2022-03-15 21:02:45,089 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2022-03-15 21:02:45,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-15 21:02:45,093 INFO L225 Difference]: With dead ends: 22 [2022-03-15 21:02:45,093 INFO L226 Difference]: Without dead ends: 0 [2022-03-15 21:02:45,093 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=60, Invalid=180, Unknown=0, NotChecked=0, Total=240 [2022-03-15 21:02:45,096 INFO L933 BasicCegarLoop]: 0 mSDtfsCounter, 37 mSDsluCounter, 61 mSDsCounter, 0 mSdLazyCounter, 129 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 37 SdHoareTripleChecker+Valid, 0 SdHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 129 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2022-03-15 21:02:45,097 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [37 Valid, 0 Invalid, 131 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 129 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2022-03-15 21:02:45,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-15 21:02:45,114 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-15 21:02:45,115 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:02:45,115 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-15 21:02:45,116 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-03-15 21:02:45,116 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-15 21:02:45,116 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-15 21:02:45,116 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 11 states have (on average 2.909090909090909) internal successors, (32), 12 states have internal predecessors, (32), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2022-03-15 21:02:45,116 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-15 21:02:45,117 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-15 21:02:45,118 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (3 of 4 remaining) [2022-03-15 21:02:45,118 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (2 of 4 remaining) [2022-03-15 21:02:45,119 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (1 of 4 remaining) [2022-03-15 21:02:45,119 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr2INUSE_VIOLATION (0 of 4 remaining) [2022-03-15 21:02:45,119 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-15 21:02:45,121 INFO L732 BasicCegarLoop]: Path program histogram: [1] [2022-03-15 21:02:45,122 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-15 21:02:45,122 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-15 21:02:45,125 INFO L202 PluginConnector]: Adding new model exp-term-subst.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 15.03 09:02:45 BasicIcfg [2022-03-15 21:02:45,125 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-15 21:02:45,126 INFO L158 Benchmark]: Toolchain (without parser) took 7923.32ms. Allocated memory was 176.2MB in the beginning and 368.1MB in the end (delta: 191.9MB). Free memory was 134.2MB in the beginning and 188.4MB in the end (delta: -54.2MB). Peak memory consumption was 139.6MB. Max. memory is 8.0GB. [2022-03-15 21:02:45,126 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.13ms. Allocated memory is still 176.2MB. Free memory is still 135.3MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-15 21:02:45,127 INFO L158 Benchmark]: Boogie Procedure Inliner took 29.56ms. Allocated memory is still 176.2MB. Free memory was 134.1MB in the beginning and 132.5MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-15 21:02:45,127 INFO L158 Benchmark]: Boogie Preprocessor took 20.31ms. Allocated memory is still 176.2MB. Free memory was 132.5MB in the beginning and 131.7MB in the end (delta: 816.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-15 21:02:45,127 INFO L158 Benchmark]: RCFGBuilder took 219.05ms. Allocated memory is still 176.2MB. Free memory was 131.6MB in the beginning and 122.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-03-15 21:02:45,128 INFO L158 Benchmark]: TraceAbstraction took 7642.98ms. Allocated memory was 176.2MB in the beginning and 368.1MB in the end (delta: 191.9MB). Free memory was 122.4MB in the beginning and 188.4MB in the end (delta: -66.0MB). Peak memory consumption was 126.0MB. Max. memory is 8.0GB. [2022-03-15 21:02:45,130 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 0.13ms. Allocated memory is still 176.2MB. Free memory is still 135.3MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 29.56ms. Allocated memory is still 176.2MB. Free memory was 134.1MB in the beginning and 132.5MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 20.31ms. Allocated memory is still 176.2MB. Free memory was 132.5MB in the beginning and 131.7MB in the end (delta: 816.6kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 219.05ms. Allocated memory is still 176.2MB. Free memory was 131.6MB in the beginning and 122.9MB in the end (delta: 8.7MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 7642.98ms. Allocated memory was 176.2MB in the beginning and 368.1MB in the end (delta: 191.9MB). Free memory was 122.4MB in the beginning and 188.4MB in the end (delta: -66.0MB). Peak memory consumption was 126.0MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 0.2s, 29 PlacesBefore, 24 PlacesAfterwards, 19 TransitionsBefore, 14 TransitionsAfterwards, 48 CoEnabledTransitionPairs, 2 FixpointIterations, 3 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 6 TotalNumberOfCompositions, 48 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 48, positive: 48, positive conditional: 0, positive unconditional: 48, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: SyntacticIndependenceRelation.Independence Queries: [ total: 26, positive: 26, positive conditional: 0, positive unconditional: 26, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Cache Queries: [ total: 48, positive: 22, positive conditional: 0, positive unconditional: 22, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 26, unknown conditional: 0, unknown unconditional: 26] , Statistics on independence cache: Total cache size (in pairs): 9, Positive cache size: 9, Positive conditional cache size: 0, Positive unconditional cache size: 9, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 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: 47]: 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 7 procedures, 32 locations, 4 error locations. Started 1 CEGAR loops. OverallTime: 7.5s, OverallIterations: 1, TraceHistogramMax: 1, PathProgramHistogramMax: 1, EmptinessCheckTime: 0.0s, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.3s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 37 SdHoareTripleChecker+Valid, 0.1s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 37 mSDsluCounter, 0 SdHoareTripleChecker+Invalid, 0.1s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 61 mSDsCounter, 2 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 129 IncrementalHoareTripleChecker+Invalid, 131 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 2 mSolverCounterUnsat, 0 mSDtfsCounter, 129 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 21 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 1.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=23occurred in iteration=0, InterpolantAutomatonStates: 9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 1 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.7s InterpolantComputationTime, 10 NumberOfCodeBlocks, 10 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 9 ConstructedInterpolants, 0 QuantifiedInterpolants, 289 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 1 InterpolantComputations, 1 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! [2022-03-15 21:02:45,156 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...