/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-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/sre-symm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-4b0ab11 [2022-03-03 19:11:26,153 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-03-03 19:11:26,161 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-03-03 19:11:26,197 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-03-03 19:11:26,197 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-03-03 19:11:26,200 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-03-03 19:11:26,202 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-03-03 19:11:26,204 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-03-03 19:11:26,206 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-03-03 19:11:26,206 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-03-03 19:11:26,207 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-03-03 19:11:26,208 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-03-03 19:11:26,208 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-03-03 19:11:26,211 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-03-03 19:11:26,212 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-03-03 19:11:26,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-03-03 19:11:26,215 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-03-03 19:11:26,216 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-03-03 19:11:26,217 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-03-03 19:11:26,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-03-03 19:11:26,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-03-03 19:11:26,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-03-03 19:11:26,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-03-03 19:11:26,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-03-03 19:11:26,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-03-03 19:11:26,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-03-03 19:11:26,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-03-03 19:11:26,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-03-03 19:11:26,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-03-03 19:11:26,231 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-03-03 19:11:26,231 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-03-03 19:11:26,232 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-03-03 19:11:26,233 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-03-03 19:11:26,234 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-03-03 19:11:26,234 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-03-03 19:11:26,234 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-03-03 19:11:26,235 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-03-03 19:11:26,235 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-03-03 19:11:26,235 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-03-03 19:11:26,235 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-03-03 19:11:26,236 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-03-03 19:11:26,237 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-FA-NoLbe.epf [2022-03-03 19:11:26,261 INFO L113 SettingsManager]: Loading preferences was successful [2022-03-03 19:11:26,261 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-03-03 19:11:26,261 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-03-03 19:11:26,261 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-03-03 19:11:26,262 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-03-03 19:11:26,262 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-03-03 19:11:26,262 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-03-03 19:11:26,262 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-03-03 19:11:26,263 INFO L138 SettingsManager]: * Use SBE=true [2022-03-03 19:11:26,263 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-03-03 19:11:26,263 INFO L138 SettingsManager]: * sizeof long=4 [2022-03-03 19:11:26,263 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-03-03 19:11:26,264 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-03-03 19:11:26,264 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-03-03 19:11:26,264 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-03-03 19:11:26,264 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-03-03 19:11:26,264 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-03-03 19:11:26,264 INFO L138 SettingsManager]: * sizeof long double=12 [2022-03-03 19:11:26,264 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-03-03 19:11:26,264 INFO L138 SettingsManager]: * Use constant arrays=true [2022-03-03 19:11:26,264 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-03-03 19:11:26,264 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-03-03 19:11:26,264 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-03-03 19:11:26,264 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-03-03 19:11:26,265 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-03-03 19:11:26,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 19:11:26,265 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-03-03 19:11:26,265 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-03-03 19:11:26,265 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-03-03 19:11:26,265 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-03-03 19:11:26,265 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-03-03 19:11:26,265 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-03-03 19:11:26,265 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-03-03 19:11:26,265 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-03-03 19:11:26,420 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-03-03 19:11:26,444 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-03-03 19:11:26,445 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-03-03 19:11:26,446 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-03-03 19:11:26,447 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-03-03 19:11:26,447 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/sre-symm.wvr.bpl [2022-03-03 19:11:26,448 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/chl/sre-symm.wvr.bpl' [2022-03-03 19:11:26,470 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-03-03 19:11:26,471 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-03-03 19:11:26,472 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-03-03 19:11:26,472 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-03-03 19:11:26,472 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-03-03 19:11:26,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:11:26" (1/1) ... [2022-03-03 19:11:26,490 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:11:26" (1/1) ... [2022-03-03 19:11:26,496 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-03-03 19:11:26,497 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-03-03 19:11:26,498 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-03-03 19:11:26,498 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-03-03 19:11:26,498 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-03-03 19:11:26,503 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:11:26" (1/1) ... [2022-03-03 19:11:26,503 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:11:26" (1/1) ... [2022-03-03 19:11:26,505 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:11:26" (1/1) ... [2022-03-03 19:11:26,505 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:11:26" (1/1) ... [2022-03-03 19:11:26,506 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:11:26" (1/1) ... [2022-03-03 19:11:26,507 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:11:26" (1/1) ... [2022-03-03 19:11:26,507 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:11:26" (1/1) ... [2022-03-03 19:11:26,509 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-03-03 19:11:26,510 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-03-03 19:11:26,510 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-03-03 19:11:26,510 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-03-03 19:11:26,511 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:11:26" (1/1) ... [2022-03-03 19:11:26,516 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-03-03 19:11:26,524 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-03-03 19:11:26,543 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) [2022-03-03 19:11:26,557 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 [2022-03-03 19:11:26,573 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-03-03 19:11:26,573 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-03-03 19:11:26,573 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-03-03 19:11:26,573 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-03-03 19:11:26,574 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-03-03 19:11:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-03-03 19:11:26,574 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-03-03 19:11:26,574 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-03-03 19:11:26,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-03-03 19:11:26,574 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-03-03 19:11:26,603 INFO L234 CfgBuilder]: Building ICFG [2022-03-03 19:11:26,604 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-03-03 19:11:26,656 INFO L275 CfgBuilder]: Performing block encoding [2022-03-03 19:11:26,661 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-03-03 19:11:26,661 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-03-03 19:11:26,662 INFO L202 PluginConnector]: Adding new model sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 07:11:26 BoogieIcfgContainer [2022-03-03 19:11:26,662 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-03-03 19:11:26,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-03-03 19:11:26,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-03-03 19:11:26,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-03-03 19:11:26,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 03.03 07:11:26" (1/2) ... [2022-03-03 19:11:26,668 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@65baa21f and model type sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.03 07:11:26, skipping insertion in model container [2022-03-03 19:11:26,668 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.03 07:11:26" (2/2) ... [2022-03-03 19:11:26,669 INFO L111 eAbstractionObserver]: Analyzing ICFG sre-symm.wvr.bpl [2022-03-03 19:11:26,676 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-03-03 19:11:26,676 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-03-03 19:11:26,676 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-03-03 19:11:26,676 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-03-03 19:11:26,699 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-03-03 19:11:26,725 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-03-03 19:11:26,730 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=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=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR, mMcrOptimizeForkJoin=true, mMcrOverapproximateWrwc=true [2022-03-03 19:11:26,730 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-03-03 19:11:26,736 INFO L111 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 21 places, 14 transitions, 44 flow [2022-03-03 19:11:26,745 INFO L133 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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) [2022-03-03 19:11:26,746 INFO L276 IsEmpty]: Start isEmpty. Operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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) [2022-03-03 19:11:26,750 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-03-03 19:11:26,750 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:11:26,750 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:11:26,751 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 19:11:26,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:11:26,754 INFO L85 PathProgramCache]: Analyzing trace with hash -325733116, now seen corresponding path program 1 times [2022-03-03 19:11:26,760 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:11:26,760 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561847485] [2022-03-03 19:11:26,760 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:11:26,761 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:11:26,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:11:27,138 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:11:27,139 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:11:27,139 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561847485] [2022-03-03 19:11:27,139 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561847485] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:11:27,139 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:11:27,139 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-03 19:11:27,141 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1442128263] [2022-03-03 19:11:27,141 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:11:27,144 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 19:11:27,144 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:11:27,162 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 19:11:27,162 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 19:11:27,164 INFO L87 Difference]: Start difference. First operand has 19 states, 18 states have (on average 1.4444444444444444) internal successors, (26), 18 states have internal predecessors, (26), 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 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-03-03 19:11:27,258 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:11:27,258 INFO L93 Difference]: Finished difference Result 26 states and 34 transitions. [2022-03-03 19:11:27,259 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 19:11:27,260 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 [2022-03-03 19:11:27,260 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:11:27,265 INFO L225 Difference]: With dead ends: 26 [2022-03-03 19:11:27,265 INFO L226 Difference]: Without dead ends: 14 [2022-03-03 19:11:27,266 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-03 19:11:27,269 INFO L933 BasicCegarLoop]: 7 mSDtfsCounter, 9 mSDsluCounter, 12 mSDsCounter, 0 mSdLazyCounter, 19 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 9 SdHoareTripleChecker+Valid, 12 SdHoareTripleChecker+Invalid, 19 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 19 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 19:11:27,270 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [9 Valid, 12 Invalid, 19 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 19 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 19:11:27,281 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 14 states. [2022-03-03 19:11:27,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 14 to 14. [2022-03-03 19:11:27,291 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 14 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 13 states have internal predecessors, (16), 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) [2022-03-03 19:11:27,291 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14 states to 14 states and 16 transitions. [2022-03-03 19:11:27,292 INFO L78 Accepts]: Start accepts. Automaton has 14 states and 16 transitions. Word has length 10 [2022-03-03 19:11:27,292 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:11:27,292 INFO L470 AbstractCegarLoop]: Abstraction has 14 states and 16 transitions. [2022-03-03 19:11:27,293 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-03-03 19:11:27,293 INFO L276 IsEmpty]: Start isEmpty. Operand 14 states and 16 transitions. [2022-03-03 19:11:27,293 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2022-03-03 19:11:27,293 INFO L506 BasicCegarLoop]: Found error trace [2022-03-03 19:11:27,293 INFO L514 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2022-03-03 19:11:27,293 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-03-03 19:11:27,294 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-03-03 19:11:27,294 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-03-03 19:11:27,294 INFO L85 PathProgramCache]: Analyzing trace with hash -462623536, now seen corresponding path program 2 times [2022-03-03 19:11:27,294 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-03-03 19:11:27,294 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [239917650] [2022-03-03 19:11:27,295 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-03-03 19:11:27,295 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-03-03 19:11:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-03-03 19:11:27,452 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-03-03 19:11:27,452 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-03-03 19:11:27,453 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [239917650] [2022-03-03 19:11:27,453 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [239917650] provided 1 perfect and 0 imperfect interpolant sequences [2022-03-03 19:11:27,453 INFO L191 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-03-03 19:11:27,453 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2022-03-03 19:11:27,453 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [667751039] [2022-03-03 19:11:27,453 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-03-03 19:11:27,454 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-03-03 19:11:27,454 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-03-03 19:11:27,455 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-03-03 19:11:27,455 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-03-03 19:11:27,455 INFO L87 Difference]: Start difference. First operand 14 states and 16 transitions. Second operand has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-03-03 19:11:27,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-03-03 19:11:27,508 INFO L93 Difference]: Finished difference Result 12 states and 14 transitions. [2022-03-03 19:11:27,508 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2022-03-03 19:11:27,509 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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 [2022-03-03 19:11:27,509 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-03-03 19:11:27,509 INFO L225 Difference]: With dead ends: 12 [2022-03-03 19:11:27,509 INFO L226 Difference]: Without dead ends: 0 [2022-03-03 19:11:27,512 INFO L932 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-03-03 19:11:27,513 INFO L933 BasicCegarLoop]: 4 mSDtfsCounter, 5 mSDsluCounter, 5 mSDsCounter, 0 mSdLazyCounter, 10 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 5 SdHoareTripleChecker+Valid, 5 SdHoareTripleChecker+Invalid, 10 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 10 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2022-03-03 19:11:27,514 INFO L934 BasicCegarLoop]: SdHoareTripleChecker [5 Valid, 5 Invalid, 10 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 10 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2022-03-03 19:11:27,515 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2022-03-03 19:11:27,516 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2022-03-03 19:11:27,516 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) [2022-03-03 19:11:27,516 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2022-03-03 19:11:27,517 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2022-03-03 19:11:27,517 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-03-03 19:11:27,517 INFO L470 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2022-03-03 19:11:27,518 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 2.5) internal successors, (10), 4 states have internal predecessors, (10), 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) [2022-03-03 19:11:27,518 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2022-03-03 19:11:27,518 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2022-03-03 19:11:27,521 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-03-03 19:11:27,522 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-03-03 19:11:27,523 INFO L764 garLoopResultBuilder]: Registering result SAFE for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-03-03 19:11:27,523 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2022-03-03 19:11:27,526 INFO L732 BasicCegarLoop]: Path program histogram: [2] [2022-03-03 19:11:27,527 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-03-03 19:11:27,527 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-03-03 19:11:27,533 INFO L202 PluginConnector]: Adding new model sre-symm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.03 07:11:27 BasicIcfg [2022-03-03 19:11:27,533 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-03-03 19:11:27,534 INFO L158 Benchmark]: Toolchain (without parser) took 1062.01ms. Allocated memory was 192.9MB in the beginning and 237.0MB in the end (delta: 44.0MB). Free memory was 152.1MB in the beginning and 180.4MB in the end (delta: -28.3MB). Peak memory consumption was 16.5MB. Max. memory is 8.0GB. [2022-03-03 19:11:27,534 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.10ms. Allocated memory is still 192.9MB. Free memory is still 153.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-03-03 19:11:27,534 INFO L158 Benchmark]: Boogie Procedure Inliner took 25.36ms. Allocated memory is still 192.9MB. Free memory was 152.0MB in the beginning and 150.5MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. [2022-03-03 19:11:27,534 INFO L158 Benchmark]: Boogie Preprocessor took 11.06ms. Allocated memory is still 192.9MB. Free memory was 150.5MB in the beginning and 149.6MB in the end (delta: 904.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-03-03 19:11:27,536 INFO L158 Benchmark]: RCFGBuilder took 152.34ms. Allocated memory is still 192.9MB. Free memory was 149.6MB in the beginning and 141.3MB in the end (delta: 8.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. [2022-03-03 19:11:27,536 INFO L158 Benchmark]: TraceAbstraction took 869.89ms. Allocated memory was 192.9MB in the beginning and 237.0MB in the end (delta: 44.0MB). Free memory was 140.8MB in the beginning and 180.4MB in the end (delta: -39.6MB). Peak memory consumption was 3.9MB. Max. memory is 8.0GB. [2022-03-03 19:11:27,539 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 0.10ms. Allocated memory is still 192.9MB. Free memory is still 153.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 25.36ms. Allocated memory is still 192.9MB. Free memory was 152.0MB in the beginning and 150.5MB in the end (delta: 1.5MB). Peak memory consumption was 3.1MB. Max. memory is 8.0GB. * Boogie Preprocessor took 11.06ms. Allocated memory is still 192.9MB. Free memory was 150.5MB in the beginning and 149.6MB in the end (delta: 904.1kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 152.34ms. Allocated memory is still 192.9MB. Free memory was 149.6MB in the beginning and 141.3MB in the end (delta: 8.3MB). Peak memory consumption was 7.3MB. Max. memory is 8.0GB. * TraceAbstraction took 869.89ms. Allocated memory was 192.9MB in the beginning and 237.0MB in the end (delta: 44.0MB). Free memory was 140.8MB in the beginning and 180.4MB in the end (delta: -39.6MB). Peak memory consumption was 3.9MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - 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: 34]: 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 5 procedures, 23 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 0.8s, OverallIterations: 2, TraceHistogramMax: 1, PathProgramHistogramMax: 2, EmptinessCheckTime: 0.0s, AutomataDifference: 0.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 0.0s, HoareTripleCheckerStatistics: 0 mSolverCounterUnknown, 14 SdHoareTripleChecker+Valid, 0.0s IncrementalHoareTripleChecker+Time, 0 mSdLazyCounter, 14 mSDsluCounter, 17 SdHoareTripleChecker+Invalid, 0.0s Time, 0 mProtectedAction, 0 SdHoareTripleChecker+Unchecked, 0 IncrementalHoareTripleChecker+Unchecked, 17 mSDsCounter, 0 IncrementalHoareTripleChecker+Valid, 0 mProtectedPredicate, 29 IncrementalHoareTripleChecker+Invalid, 29 SdHoareTripleChecker+Unknown, 0 mSolverCounterNotChecked, 0 mSolverCounterUnsat, 11 mSDtfsCounter, 29 mSolverCounterSat, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Unknown, PredicateUnifierStatistics: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=19occurred in iteration=0, InterpolantAutomatonStates: 8, 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, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 20 NumberOfCodeBlocks, 20 NumberOfCodeBlocksAsserted, 2 NumberOfCheckSat, 18 ConstructedInterpolants, 0 QuantifiedInterpolants, 480 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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! [2022-03-03 19:11:27,565 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...