/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-MCRwithoutDepranks-Lazy.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-comm.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.2-wip.dk.mcr-reduction-44898dd [2022-02-10 16:12:29,845 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-02-10 16:12:29,847 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-02-10 16:12:29,903 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-02-10 16:12:29,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-02-10 16:12:29,904 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-02-10 16:12:29,905 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-02-10 16:12:29,907 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-02-10 16:12:29,908 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-02-10 16:12:29,909 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-02-10 16:12:29,909 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-02-10 16:12:29,910 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-02-10 16:12:29,910 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-02-10 16:12:29,911 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-02-10 16:12:29,912 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-02-10 16:12:29,912 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-02-10 16:12:29,913 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-02-10 16:12:29,913 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-02-10 16:12:29,914 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-02-10 16:12:29,915 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-02-10 16:12:29,916 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-02-10 16:12:29,917 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-02-10 16:12:29,918 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-02-10 16:12:29,918 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-02-10 16:12:29,920 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-02-10 16:12:29,920 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-02-10 16:12:29,920 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-02-10 16:12:29,921 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-02-10 16:12:29,921 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-02-10 16:12:29,922 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-02-10 16:12:29,922 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-02-10 16:12:29,923 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-02-10 16:12:29,923 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-02-10 16:12:29,924 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-02-10 16:12:29,924 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-02-10 16:12:29,924 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-02-10 16:12:29,925 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-02-10 16:12:29,925 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-02-10 16:12:29,925 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-02-10 16:12:29,926 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-02-10 16:12:29,926 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-02-10 16:12:29,927 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-MCRwithoutDepranks-Lazy.epf [2022-02-10 16:12:29,941 INFO L113 SettingsManager]: Loading preferences was successful [2022-02-10 16:12:29,941 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-02-10 16:12:29,941 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-02-10 16:12:29,941 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-02-10 16:12:29,942 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-02-10 16:12:29,942 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-02-10 16:12:29,942 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-02-10 16:12:29,942 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-02-10 16:12:29,942 INFO L138 SettingsManager]: * Use SBE=true [2022-02-10 16:12:29,943 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-02-10 16:12:29,943 INFO L138 SettingsManager]: * sizeof long=4 [2022-02-10 16:12:29,943 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-02-10 16:12:29,943 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-02-10 16:12:29,943 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-02-10 16:12:29,943 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-02-10 16:12:29,943 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-02-10 16:12:29,944 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-02-10 16:12:29,944 INFO L138 SettingsManager]: * sizeof long double=12 [2022-02-10 16:12:29,944 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-02-10 16:12:29,944 INFO L138 SettingsManager]: * Use constant arrays=true [2022-02-10 16:12:29,944 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-02-10 16:12:29,944 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-02-10 16:12:29,944 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-02-10 16:12:29,944 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-02-10 16:12:29,944 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-02-10 16:12:29,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 16:12:29,945 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-02-10 16:12:29,945 INFO L138 SettingsManager]: * Construct finite automaton lazily=true [2022-02-10 16:12:29,945 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-02-10 16:12:29,945 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-02-10 16:12:29,945 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-02-10 16:12:29,945 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-02-10 16:12:29,945 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2022-02-10 16:12:29,946 INFO L138 SettingsManager]: * Automaton type used in concurrency analysis=PARTIAL_ORDER_FA [2022-02-10 16:12:29,946 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-02-10 16:12:29,946 INFO L138 SettingsManager]: * Partial Order Reduction in concurrent analysis=MCR_WITHOUT_DEPRANKS [2022-02-10 16:12:29,946 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2022-02-10 16:12:30,130 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-02-10 16:12:30,152 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-02-10 16:12:30,154 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-02-10 16:12:30,155 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2022-02-10 16:12:30,170 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2022-02-10 16:12:30,172 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-comm.wvr.bpl [2022-02-10 16:12:30,172 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/mult-comm.wvr.bpl' [2022-02-10 16:12:30,197 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-02-10 16:12:30,198 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2022-02-10 16:12:30,198 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-02-10 16:12:30,199 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-02-10 16:12:30,199 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-02-10 16:12:30,221 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:12:30" (1/1) ... [2022-02-10 16:12:30,226 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:12:30" (1/1) ... [2022-02-10 16:12:30,233 INFO L137 Inliner]: procedures = 3, calls = 2, calls flagged for inlining = 0, calls inlined = 0, statements flattened = 0 [2022-02-10 16:12:30,234 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-02-10 16:12:30,236 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-02-10 16:12:30,236 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-02-10 16:12:30,237 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-02-10 16:12:30,242 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:12:30" (1/1) ... [2022-02-10 16:12:30,242 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:12:30" (1/1) ... [2022-02-10 16:12:30,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:12:30" (1/1) ... [2022-02-10 16:12:30,243 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:12:30" (1/1) ... [2022-02-10 16:12:30,245 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:12:30" (1/1) ... [2022-02-10 16:12:30,247 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:12:30" (1/1) ... [2022-02-10 16:12:30,249 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:12:30" (1/1) ... [2022-02-10 16:12:30,249 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-02-10 16:12:30,250 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-02-10 16:12:30,250 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-02-10 16:12:30,250 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-02-10 16:12:30,251 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:12:30" (1/1) ... [2022-02-10 16:12:30,257 INFO L168 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-02-10 16:12:30,267 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 16:12:30,292 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) [2022-02-10 16:12:30,301 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 [2022-02-10 16:12:30,323 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2022-02-10 16:12:30,323 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-02-10 16:12:30,323 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-02-10 16:12:30,324 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2022-02-10 16:12:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-02-10 16:12:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-02-10 16:12:30,324 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2022-02-10 16:12:30,324 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-02-10 16:12:30,324 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-02-10 16:12:30,325 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-02-10 16:12:30,359 INFO L234 CfgBuilder]: Building ICFG [2022-02-10 16:12:30,360 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-02-10 16:12:30,419 INFO L275 CfgBuilder]: Performing block encoding [2022-02-10 16:12:30,429 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-02-10 16:12:30,429 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2022-02-10 16:12:30,431 INFO L202 PluginConnector]: Adding new model mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 04:12:30 BoogieIcfgContainer [2022-02-10 16:12:30,431 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-02-10 16:12:30,433 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-02-10 16:12:30,433 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-02-10 16:12:30,435 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-02-10 16:12:30,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 10.02 04:12:30" (1/2) ... [2022-02-10 16:12:30,436 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f22fbc and model type mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 10.02 04:12:30, skipping insertion in model container [2022-02-10 16:12:30,436 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 10.02 04:12:30" (2/2) ... [2022-02-10 16:12:30,438 INFO L111 eAbstractionObserver]: Analyzing ICFG mult-comm.wvr.bpl [2022-02-10 16:12:30,441 WARN L150 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-02-10 16:12:30,442 INFO L205 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-02-10 16:12:30,442 INFO L164 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2022-02-10 16:12:30,442 INFO L534 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-02-10 16:12:30,463 INFO L148 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2022-02-10 16:12:30,495 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 [2022-02-10 16:12:30,495 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 16:12:30,497 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) [2022-02-10 16:12:30,498 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 [2022-02-10 16:12:30,525 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-02-10 16:12:30,530 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=PARTIAL_ORDER_FA, mLazyFiniteAutomaton=true, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2022-02-10 16:12:30,530 INFO L340 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2022-02-10 16:12:30,710 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 169 transitions and produced 157 states. [2022-02-10 16:12:30,712 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 16:12:30,720 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 16:12:30,720 INFO L85 PathProgramCache]: Analyzing trace with hash -971661726, now seen corresponding path program 1 times [2022-02-10 16:12:30,733 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 16:12:30,733 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1561279430] [2022-02-10 16:12:30,734 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 16:12:30,734 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 16:12:30,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 16:12:32,013 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 0 proven. 397 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 16:12:32,014 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 16:12:32,014 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1561279430] [2022-02-10 16:12:32,015 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1561279430] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 16:12:32,015 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1676252296] [2022-02-10 16:12:32,015 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 16:12:32,015 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 16:12:32,015 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 16:12:32,020 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 16:12:32,022 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Waiting until timeout for monitored process [2022-02-10 16:12:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 16:12:32,077 WARN L261 TraceCheckSpWp]: Trace formula consists of 159 conjuncts, 111 conjunts are in the unsatisfiable core [2022-02-10 16:12:32,086 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 16:12:34,208 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 0 proven. 397 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 16:12:34,209 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 16:12:38,831 WARN L838 $PredicateComparison]: unable to prove that (forall ((a Int)) (or (< (+ 6 c_i_2) a) (not (< (+ 5 c_i_2) a)) (and (< (+ c_i_1 18) (div (+ (* 19 a) c_x_1 (* (- 1) c_x_2)) 6)) (<= (div (+ c_x_2 (* (- 1) c_x_1) (* a (- 19))) (- 6)) (+ 19 c_i_1))))) is different from false [2022-02-10 16:12:38,949 INFO L134 CoverageAnalysis]: Checked inductivity of 397 backedges. 0 proven. 360 refuted. 0 times theorem prover too weak. 0 trivial. 37 not checked. [2022-02-10 16:12:38,949 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1676252296] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 16:12:38,949 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 16:12:38,949 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [31, 31, 31] total 89 [2022-02-10 16:12:38,951 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [636418385] [2022-02-10 16:12:38,952 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 16:12:38,955 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 90 states [2022-02-10 16:12:38,955 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 16:12:38,969 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 90 interpolants. [2022-02-10 16:12:38,978 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=695, Invalid=7140, Unknown=1, NotChecked=174, Total=8010 [2022-02-10 16:12:38,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 16:12:38,980 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 16:12:38,981 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 90 states, 90 states have (on average 1.9222222222222223) internal successors, (173), 89 states have internal predecessors, (173), 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) [2022-02-10 16:12:38,981 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 16:13:00,404 WARN L228 SmtUtils]: Spent 21.34s on a formula simplification. DAG size of input: 59 DAG size of output: 51 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-10 16:13:20,610 WARN L228 SmtUtils]: Spent 20.04s on a formula simplification. DAG size of input: 67 DAG size of output: 52 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-10 16:14:08,135 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 253 transitions and produced 215 states. [2022-02-10 16:14:08,136 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-10 16:14:08,155 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (3)] Ended with exit code 0 [2022-02-10 16:14:08,354 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable0 [2022-02-10 16:14:08,354 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 16:14:08,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 16:14:08,357 INFO L85 PathProgramCache]: Analyzing trace with hash -277270406, now seen corresponding path program 2 times [2022-02-10 16:14:08,357 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 16:14:08,358 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [371231301] [2022-02-10 16:14:08,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 16:14:08,358 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 16:14:08,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 16:14:13,351 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 0 proven. 997 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 16:14:13,352 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 16:14:13,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [371231301] [2022-02-10 16:14:13,352 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [371231301] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 16:14:13,352 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [636956313] [2022-02-10 16:14:13,352 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST1 [2022-02-10 16:14:13,353 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 16:14:13,353 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 16:14:13,354 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 16:14:13,366 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Waiting until timeout for monitored process [2022-02-10 16:14:13,430 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST1 issued 2 check-sat command(s) [2022-02-10 16:14:13,430 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 16:14:13,433 WARN L261 TraceCheckSpWp]: Trace formula consists of 219 conjuncts, 159 conjunts are in the unsatisfiable core [2022-02-10 16:14:13,436 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 16:14:23,856 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 0 proven. 997 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 16:14:23,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 16:15:35,059 INFO L134 CoverageAnalysis]: Checked inductivity of 997 backedges. 0 proven. 997 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 16:15:35,059 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [636956313] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 16:15:35,059 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 16:15:35,060 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [43, 43, 43] total 125 [2022-02-10 16:15:35,060 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2077336392] [2022-02-10 16:15:35,060 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 16:15:35,061 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 126 states [2022-02-10 16:15:35,061 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 16:15:35,062 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 126 interpolants. [2022-02-10 16:15:35,065 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1263, Invalid=14476, Unknown=11, NotChecked=0, Total=15750 [2022-02-10 16:15:35,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 16:15:35,065 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 16:15:35,065 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 126 states, 126 states have (on average 1.9444444444444444) internal successors, (245), 125 states have internal predecessors, (245), 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) [2022-02-10 16:15:35,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-10 16:15:35,066 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 16:17:43,552 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 358 transitions and produced 302 states. [2022-02-10 16:17:43,552 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-10 16:17:43,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2022-02-10 16:17:43,571 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (4)] Forceful destruction successful, exit code 0 [2022-02-10 16:17:43,754 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1,4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 16:17:43,754 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 16:17:43,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 16:17:43,755 INFO L85 PathProgramCache]: Analyzing trace with hash -793687144, now seen corresponding path program 3 times [2022-02-10 16:17:43,756 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 16:17:43,756 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1992062574] [2022-02-10 16:17:43,756 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 16:17:43,756 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 16:17:43,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 16:17:52,199 INFO L134 CoverageAnalysis]: Checked inductivity of 2152 backedges. 0 proven. 2152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 16:17:52,199 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 16:17:52,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1992062574] [2022-02-10 16:17:52,199 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1992062574] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 16:17:52,199 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [698171681] [2022-02-10 16:17:52,199 INFO L93 rtionOrderModulation]: Changing assertion order to OUTSIDE_LOOP_FIRST2 [2022-02-10 16:17:52,200 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 16:17:52,200 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 16:17:52,201 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 16:17:52,204 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Waiting until timeout for monitored process [2022-02-10 16:17:52,271 INFO L228 tOrderPrioritization]: Assert order OUTSIDE_LOOP_FIRST2 issued 47 check-sat command(s) [2022-02-10 16:17:52,271 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 16:17:52,274 WARN L261 TraceCheckSpWp]: Trace formula consists of 294 conjuncts, 219 conjunts are in the unsatisfiable core [2022-02-10 16:17:52,277 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 16:18:13,855 INFO L134 CoverageAnalysis]: Checked inductivity of 2152 backedges. 0 proven. 2152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 16:18:13,856 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 16:19:55,934 INFO L134 CoverageAnalysis]: Checked inductivity of 2152 backedges. 0 proven. 2152 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 16:19:55,935 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [698171681] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 16:19:55,935 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 16:19:55,935 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [58, 58, 58] total 170 [2022-02-10 16:19:55,935 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1037886551] [2022-02-10 16:19:55,935 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 16:19:55,936 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 171 states [2022-02-10 16:19:55,936 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 16:19:55,937 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 171 interpolants. [2022-02-10 16:19:55,941 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=2301, Invalid=26755, Unknown=14, NotChecked=0, Total=29070 [2022-02-10 16:19:55,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 16:19:55,941 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 16:19:55,942 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 171 states, 171 states have (on average 1.95906432748538) internal successors, (335), 170 states have internal predecessors, (335), 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) [2022-02-10 16:19:55,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-10 16:19:55,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. [2022-02-10 16:19:55,942 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 16:24:34,859 INFO L104 alCausalityReduction]: MaximalCausalityReduction evaluated 484 transitions and produced 410 states. [2022-02-10 16:24:34,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 88 states. [2022-02-10 16:24:34,859 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 165 states. [2022-02-10 16:24:34,861 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 261 states. [2022-02-10 16:24:34,882 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (5)] Forceful destruction successful, exit code 0 [2022-02-10 16:24:35,061 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2,5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 16:24:35,062 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONASSERT === [ULTIMATE.startErr0ASSERT_VIOLATIONASSERT, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION] === [2022-02-10 16:24:35,062 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-02-10 16:24:35,062 INFO L85 PathProgramCache]: Analyzing trace with hash 1541415996, now seen corresponding path program 4 times [2022-02-10 16:24:35,062 INFO L126 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-02-10 16:24:35,063 INFO L338 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1479086482] [2022-02-10 16:24:35,063 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-02-10 16:24:35,063 INFO L126 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-02-10 16:24:35,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-02-10 16:24:50,311 INFO L134 CoverageAnalysis]: Checked inductivity of 4132 backedges. 0 proven. 4132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 16:24:50,311 INFO L144 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-02-10 16:24:50,311 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1479086482] [2022-02-10 16:24:50,312 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1479086482] provided 0 perfect and 1 imperfect interpolant sequences [2022-02-10 16:24:50,312 INFO L338 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [474514330] [2022-02-10 16:24:50,312 INFO L93 rtionOrderModulation]: Changing assertion order to TERMS_WITH_SMALL_CONSTANTS_FIRST [2022-02-10 16:24:50,312 INFO L168 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 16:24:50,312 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-02-10 16:24:50,313 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-02-10 16:24:50,314 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Waiting until timeout for monitored process [2022-02-10 16:24:50,379 INFO L228 tOrderPrioritization]: Assert order TERMS_WITH_SMALL_CONSTANTS_FIRST issued 0 check-sat command(s) [2022-02-10 16:24:50,379 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2022-02-10 16:24:50,384 WARN L261 TraceCheckSpWp]: Trace formula consists of 384 conjuncts, 291 conjunts are in the unsatisfiable core [2022-02-10 16:24:50,388 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-02-10 16:25:25,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4132 backedges. 0 proven. 4132 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-02-10 16:25:25,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-02-10 16:26:15,275 WARN L838 $PredicateComparison]: unable to prove that (forall ((a Int)) (or (< (+ 6 c_i_2) a) (let ((.cse0 (* a 4))) (and (< (+ c_i_1 63) (+ (div (+ (* 40 a) c_x_1 (* (- 1) c_x_2)) 6) .cse0)) (<= (+ (div (+ (* (- 40) a) c_x_2 (* (- 1) c_x_1)) (- 6)) .cse0) (+ 64 c_i_1)))) (not (< (+ 5 c_i_2) a)))) is different from false [2022-02-10 16:26:15,460 INFO L134 CoverageAnalysis]: Checked inductivity of 4132 backedges. 0 proven. 4005 refuted. 0 times theorem prover too weak. 0 trivial. 127 not checked. [2022-02-10 16:26:15,460 INFO L165 FreeRefinementEngine]: IpTcStrategyModuleZ3 [474514330] provided 0 perfect and 2 imperfect interpolant sequences [2022-02-10 16:26:15,460 INFO L191 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-02-10 16:26:15,461 INFO L204 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [76, 76, 76] total 224 [2022-02-10 16:26:15,461 INFO L118 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [697080902] [2022-02-10 16:26:15,475 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-02-10 16:26:15,476 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 225 states [2022-02-10 16:26:15,476 INFO L108 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-02-10 16:26:15,478 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 225 interpolants. [2022-02-10 16:26:15,482 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=4052, Invalid=45903, Unknown=1, NotChecked=444, Total=50400 [2022-02-10 16:26:15,483 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2022-02-10 16:26:15,484 INFO L470 AbstractCegarLoop]: Abstraction has currently 0 states, but on-demand construction may add more states [2022-02-10 16:26:15,485 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 225 states, 225 states have (on average 1.968888888888889) internal successors, (443), 224 states have internal predecessors, (443), 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) [2022-02-10 16:26:15,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 88 states. [2022-02-10 16:26:15,485 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 165 states. [2022-02-10 16:26:15,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 261 states. [2022-02-10 16:26:15,486 INFO L154 InterpolantAutomaton]: Switched to On-DemandConstruction mode: deterministic interpolant automaton has 2 states. [2022-02-10 16:26:44,796 WARN L228 SmtUtils]: Spent 28.76s on a formula simplification. DAG size of input: 64 DAG size of output: 56 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) [2022-02-10 16:27:02,303 WARN L228 SmtUtils]: Spent 16.70s on a formula simplification. DAG size of input: 72 DAG size of output: 57 (called from [L 360] de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.predicates.PredicateUnifier.getOrConstructPredicate) Received shutdown request... [2022-02-10 16:27:13,850 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-10 16:27:13,850 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-10 16:27:13,862 INFO L552 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (6)] Ended with exit code 0 [2022-02-10 16:27:13,869 WARN L340 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true -t:1000 (2)] Timeout while monitored process is still running, waiting 1000 ms for graceful end [2022-02-10 16:27:14,045 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3,6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-02-10 16:27:14,046 WARN L594 AbstractCegarLoop]: Verification canceled: while PredicateComparison was comparing new predicate (quantifier-free) to 245 known predicates. [2022-02-10 16:27:14,048 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0ASSERT_VIOLATIONASSERT (2 of 3 remaining) [2022-02-10 16:27:14,048 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr0INUSE_VIOLATION (1 of 3 remaining) [2022-02-10 16:27:14,048 INFO L764 garLoopResultBuilder]: Registering result TIMEOUT for location ULTIMATE.startErr1INUSE_VIOLATION (0 of 3 remaining) [2022-02-10 16:27:14,053 INFO L732 BasicCegarLoop]: Path program histogram: [4] [2022-02-10 16:27:14,055 INFO L230 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2022-02-10 16:27:14,055 INFO L180 ceAbstractionStarter]: Computing trace abstraction results [2022-02-10 16:27:14,056 INFO L202 PluginConnector]: Adding new model mult-comm.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 10.02 04:27:14 BasicIcfg [2022-02-10 16:27:14,056 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2022-02-10 16:27:14,057 INFO L158 Benchmark]: Toolchain (without parser) took 883859.07ms. Allocated memory was 195.0MB in the beginning and 413.1MB in the end (delta: 218.1MB). Free memory was 154.0MB in the beginning and 317.9MB in the end (delta: -163.9MB). Peak memory consumption was 55.8MB. Max. memory is 8.0GB. [2022-02-10 16:27:14,057 INFO L158 Benchmark]: Boogie PL CUP Parser took 0.11ms. Allocated memory is still 195.0MB. Free memory is still 155.1MB. There was no memory consumed. Max. memory is 8.0GB. [2022-02-10 16:27:14,057 INFO L158 Benchmark]: Boogie Procedure Inliner took 36.07ms. Allocated memory is still 195.0MB. Free memory was 153.9MB in the beginning and 152.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 16:27:14,058 INFO L158 Benchmark]: Boogie Preprocessor took 13.63ms. Allocated memory is still 195.0MB. Free memory was 152.4MB in the beginning and 151.4MB in the end (delta: 949.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. [2022-02-10 16:27:14,058 INFO L158 Benchmark]: RCFGBuilder took 181.14ms. Allocated memory is still 195.0MB. Free memory was 151.4MB in the beginning and 142.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. [2022-02-10 16:27:14,058 INFO L158 Benchmark]: TraceAbstraction took 883623.70ms. Allocated memory was 195.0MB in the beginning and 413.1MB in the end (delta: 218.1MB). Free memory was 142.0MB in the beginning and 317.9MB in the end (delta: -175.9MB). Peak memory consumption was 43.2MB. Max. memory is 8.0GB. [2022-02-10 16:27:14,060 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 0.11ms. Allocated memory is still 195.0MB. Free memory is still 155.1MB. There was no memory consumed. Max. memory is 8.0GB. * Boogie Procedure Inliner took 36.07ms. Allocated memory is still 195.0MB. Free memory was 153.9MB in the beginning and 152.4MB in the end (delta: 1.5MB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * Boogie Preprocessor took 13.63ms. Allocated memory is still 195.0MB. Free memory was 152.4MB in the beginning and 151.4MB in the end (delta: 949.8kB). Peak memory consumption was 1.0MB. Max. memory is 8.0GB. * RCFGBuilder took 181.14ms. Allocated memory is still 195.0MB. Free memory was 151.4MB in the beginning and 142.5MB in the end (delta: 8.9MB). Peak memory consumption was 8.4MB. Max. memory is 8.0GB. * TraceAbstraction took 883623.70ms. Allocated memory was 195.0MB in the beginning and 413.1MB in the end (delta: 218.1MB). Free memory was 142.0MB in the beginning and 317.9MB in the end (delta: -175.9MB). Peak memory consumption was 43.2MB. Max. memory is 8.0GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: Independence relation benchmarks ThreadSeparatingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ThreadSeparatingIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: DisjunctiveConditionalIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , DisjunctiveConditionalIndependenceRelation.Statistics on underlying relation: ConditionTransformingIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , ConditionTransformingIndependenceRelation.Statistics on underlying relation: SemanticConditionEliminator.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticConditionEliminator.Statistics on underlying relation: CachedIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , Statistics on independence cache: Total cache size (in pairs): 0, Positive cache size: 0, Positive conditional cache size: 0, Positive unconditional cache size: 0, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0, Eliminated conditions: 0, Maximal queried relation: -1, Independence queries for same thread: 0 - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0s ErrorAutomatonConstructionTimeTotal, 0.0s FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0s ErrorAutomatonConstructionTimeAvg, 0.0s ErrorAutomatonDifferenceTimeAvg, 0.0s ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - TimeoutResultAtElement [Line: 50]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 245 known predicates. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 245 known predicates. - TimeoutResultAtElement [Line: 45]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while PredicateComparison was comparing new predicate (quantifier-free) to 245 known predicates. - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 28 locations, 3 error locations. Started 1 CEGAR loops. OverallTime: 883.6s, OverallIterations: 4, TraceHistogramMax: 0, PathProgramHistogramMax: 4, EmptinessCheckTime: 0.0s, AutomataDifference: 0.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, PartialOrderReductionTime: 555.1s, HoareTripleCheckerStatistics: , PredicateUnifierStatistics: No data available, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=0occurred in iteration=0, InterpolantAutomatonStates: 537, 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: 0.1s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 326.9s InterpolantComputationTime, 824 NumberOfCodeBlocks, 824 NumberOfCodeBlocksAsserted, 55 NumberOfCheckSat, 1224 ConstructedInterpolants, 16 QuantifiedInterpolants, 40759 SizeOfPredicates, 32 NumberOfNonLiveVariables, 1056 ConjunctsInSsa, 780 ConjunctsInUnsatCore, 12 InterpolantComputations, 0 PerfectInterpolantSequences, 0/23034 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown