/usr/bin/java -Xmx16000000000 -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/parallel/bakery-4.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 04:58:37,799 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 04:58:37,801 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 04:58:37,831 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 04:58:37,863 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-06-05 04:58:37,864 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-06-05 04:58:37,876 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-06-05 04:58:37,877 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 [2021-06-05 04:58:37,907 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 04:58:37,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 04:58:37,907 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 04:58:37,907 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 04:58:37,908 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 04:58:37,908 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 04:58:37,909 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 04:58:37,909 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 04:58:37,909 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 04:58:37,909 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 04:58:37,909 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 04:58:37,909 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 04:58:37,910 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 04:58:37,910 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 04:58:37,910 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 04:58:37,910 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 04:58:37,910 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 04:58:37,910 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 04:58:37,910 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 04:58:37,910 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 04:58:37,911 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 04:58:37,911 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 04:58:37,911 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 04:58:37,911 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 04:58:37,911 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 04:58:37,911 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 04:58:37,912 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 04:58:37,912 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 04:58:37,912 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 04:58:37,912 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 04:58:37,912 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 04:58:37,912 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 04:58:38,230 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 04:58:38,256 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 04:58:38,258 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 04:58:38,258 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 04:58:38,260 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 04:58:38,261 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl [2021-06-05 04:58:38,261 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/parallel/bakery-4.wvr.bpl' [2021-06-05 04:58:38,293 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 04:58:38,294 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 04:58:38,297 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 04:58:38,297 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 04:58:38,297 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 04:58:38,308 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 04:58:38" (1/1) ... [2021-06-05 04:58:38,314 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 04:58:38" (1/1) ... [2021-06-05 04:58:38,321 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 04:58:38,322 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 04:58:38,322 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 04:58:38,323 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 04:58:38,329 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 04:58:38" (1/1) ... [2021-06-05 04:58:38,329 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 04:58:38" (1/1) ... [2021-06-05 04:58:38,330 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 04:58:38" (1/1) ... [2021-06-05 04:58:38,330 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 04:58:38" (1/1) ... [2021-06-05 04:58:38,334 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 04:58:38" (1/1) ... [2021-06-05 04:58:38,335 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 04:58:38" (1/1) ... [2021-06-05 04:58:38,336 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 04:58:38" (1/1) ... [2021-06-05 04:58:38,338 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 04:58:38,339 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 04:58:38,339 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 04:58:38,339 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 04:58:38,340 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 04:58:38" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 04:58:38,402 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-05 04:58:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-05 04:58:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-05 04:58:38,402 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-05 04:58:38,402 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-05 04:58:38,402 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-05 04:58:38,403 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 04:58:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 04:58:38,403 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 04:58:38,403 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread3 given in one single declaration [2021-06-05 04:58:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2021-06-05 04:58:38,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2021-06-05 04:58:38,403 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread4 given in one single declaration [2021-06-05 04:58:38,403 INFO L130 BoogieDeclarations]: Found specification of procedure thread4 [2021-06-05 04:58:38,403 INFO L138 BoogieDeclarations]: Found implementation of procedure thread4 [2021-06-05 04:58:38,404 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-05 04:58:38,657 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 04:58:38,657 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 04:58:38,659 INFO L202 PluginConnector]: Adding new model bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 04:58:38 BoogieIcfgContainer [2021-06-05 04:58:38,659 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 04:58:38,661 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 04:58:38,661 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 04:58:38,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 04:58:38,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 04:58:38" (1/2) ... [2021-06-05 04:58:38,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2f0669bd and model type bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 04:58:38, skipping insertion in model container [2021-06-05 04:58:38,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 04:58:38" (2/2) ... [2021-06-05 04:58:38,664 INFO L111 eAbstractionObserver]: Analyzing ICFG bakery-4.wvr.bpl [2021-06-05 04:58:38,669 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 04:58:38,669 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 04:58:38,669 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 04:58:38,670 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 04:58:38,746 INFO L149 ThreadInstanceAdder]: Constructed 4 joinOtherThreadTransitions. [2021-06-05 04:58:38,762 INFO L255 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2021-06-05 04:58:38,780 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 04:58:38,780 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 04:58:38,780 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 04:58:38,780 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 04:58:38,780 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 04:58:38,780 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 04:58:38,780 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 04:58:38,781 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 04:58:38,790 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 94 places, 81 transitions, 194 flow [2021-06-05 04:58:55,327 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 93966 states, 93964 states have (on average 3.7646439061768335) internal successors, (353741), 93965 states have internal predecessors, (353741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:58:55,524 INFO L276 IsEmpty]: Start isEmpty. Operand has 93966 states, 93964 states have (on average 3.7646439061768335) internal successors, (353741), 93965 states have internal predecessors, (353741), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:58:56,270 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 04:58:56,270 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 04:58:56,271 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 04:58:56,271 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 04:58:56,276 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 04:58:56,276 INFO L82 PathProgramCache]: Analyzing trace with hash 1096141821, now seen corresponding path program 1 times [2021-06-05 04:58:56,304 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 04:58:56,305 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [924624194] [2021-06-05 04:58:56,305 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 04:58:56,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 04:58:56,513 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 04:58:56,514 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 04:58:56,515 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [924624194] [2021-06-05 04:58:56,516 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [924624194] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 04:58:56,516 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 04:58:56,516 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 04:58:56,517 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [85604172] [2021-06-05 04:58:56,521 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 04:58:56,522 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 04:58:56,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 04:58:56,537 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 04:58:56,684 INFO L87 Difference]: Start difference. First operand has 93966 states, 93964 states have (on average 3.7646439061768335) internal successors, (353741), 93965 states have internal predecessors, (353741), 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 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:58:57,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 04:58:57,757 INFO L93 Difference]: Finished difference Result 93964 states and 349229 transitions. [2021-06-05 04:58:57,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 04:58:57,758 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-06-05 04:58:57,759 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 04:58:58,588 INFO L225 Difference]: With dead ends: 93964 [2021-06-05 04:58:58,588 INFO L226 Difference]: Without dead ends: 93964 [2021-06-05 04:58:58,590 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 7.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 04:59:06,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93964 states. [2021-06-05 04:59:09,027 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93964 to 93964. [2021-06-05 04:59:09,232 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93964 states, 93963 states have (on average 3.7166650702936264) internal successors, (349229), 93963 states have internal predecessors, (349229), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:59:09,602 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93964 states to 93964 states and 349229 transitions. [2021-06-05 04:59:09,603 INFO L78 Accepts]: Start accepts. Automaton has 93964 states and 349229 transitions. Word has length 75 [2021-06-05 04:59:09,604 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 04:59:09,604 INFO L482 AbstractCegarLoop]: Abstraction has 93964 states and 349229 transitions. [2021-06-05 04:59:09,604 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:59:09,604 INFO L276 IsEmpty]: Start isEmpty. Operand 93964 states and 349229 transitions. [2021-06-05 04:59:09,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 04:59:09,847 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 04:59:09,847 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 04:59:09,847 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 04:59:09,848 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 04:59:09,848 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 04:59:09,849 INFO L82 PathProgramCache]: Analyzing trace with hash 493735869, now seen corresponding path program 2 times [2021-06-05 04:59:09,849 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 04:59:09,849 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712907365] [2021-06-05 04:59:09,849 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 04:59:09,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 04:59:09,921 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 04:59:09,921 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 04:59:09,921 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712907365] [2021-06-05 04:59:09,921 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1712907365] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 04:59:09,922 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 04:59:09,922 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 04:59:09,922 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [532416561] [2021-06-05 04:59:09,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 04:59:09,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 04:59:09,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 04:59:09,926 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 04:59:09,927 INFO L87 Difference]: Start difference. First operand 93964 states and 349229 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:59:11,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 04:59:11,051 INFO L93 Difference]: Finished difference Result 93964 states and 344719 transitions. [2021-06-05 04:59:11,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 04:59:11,051 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-06-05 04:59:11,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 04:59:11,441 INFO L225 Difference]: With dead ends: 93964 [2021-06-05 04:59:11,441 INFO L226 Difference]: Without dead ends: 93964 [2021-06-05 04:59:11,442 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 3.4ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 04:59:20,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 93964 states. [2021-06-05 04:59:21,764 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 93964 to 93964. [2021-06-05 04:59:21,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 93964 states, 93963 states have (on average 3.6686674542107) internal successors, (344719), 93963 states have internal predecessors, (344719), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:59:22,267 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 93964 states to 93964 states and 344719 transitions. [2021-06-05 04:59:22,267 INFO L78 Accepts]: Start accepts. Automaton has 93964 states and 344719 transitions. Word has length 75 [2021-06-05 04:59:22,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 04:59:22,268 INFO L482 AbstractCegarLoop]: Abstraction has 93964 states and 344719 transitions. [2021-06-05 04:59:22,268 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:59:22,268 INFO L276 IsEmpty]: Start isEmpty. Operand 93964 states and 344719 transitions. [2021-06-05 04:59:22,430 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 04:59:22,430 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 04:59:22,431 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 04:59:22,431 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 04:59:22,431 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 04:59:22,432 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 04:59:22,432 INFO L82 PathProgramCache]: Analyzing trace with hash -2131980333, now seen corresponding path program 3 times [2021-06-05 04:59:22,432 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 04:59:22,432 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1325967727] [2021-06-05 04:59:22,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 04:59:22,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 04:59:22,623 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 04:59:22,623 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 04:59:22,623 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1325967727] [2021-06-05 04:59:22,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1325967727] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 04:59:22,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 04:59:22,624 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2021-06-05 04:59:22,624 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1745284422] [2021-06-05 04:59:22,625 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 04:59:22,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 04:59:22,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 04:59:22,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-05 04:59:22,626 INFO L87 Difference]: Start difference. First operand 93964 states and 344719 transitions. Second operand has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:59:24,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 04:59:24,760 INFO L93 Difference]: Finished difference Result 193744 states and 713684 transitions. [2021-06-05 04:59:24,761 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2021-06-05 04:59:24,761 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 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 75 [2021-06-05 04:59:24,762 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 04:59:25,314 INFO L225 Difference]: With dead ends: 193744 [2021-06-05 04:59:25,315 INFO L226 Difference]: Without dead ends: 193744 [2021-06-05 04:59:25,315 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 44 ImplicationChecksByTransitivity, 218.5ms TimeCoverageRelationStatistics Valid=106, Invalid=200, Unknown=0, NotChecked=0, Total=306 [2021-06-05 04:59:36,057 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193744 states. [2021-06-05 04:59:38,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193744 to 100718. [2021-06-05 04:59:38,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100718 states, 100717 states have (on average 3.6551624849826743) internal successors, (368137), 100717 states have internal predecessors, (368137), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:59:39,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100718 states to 100718 states and 368137 transitions. [2021-06-05 04:59:39,027 INFO L78 Accepts]: Start accepts. Automaton has 100718 states and 368137 transitions. Word has length 75 [2021-06-05 04:59:39,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 04:59:39,027 INFO L482 AbstractCegarLoop]: Abstraction has 100718 states and 368137 transitions. [2021-06-05 04:59:39,027 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 8.333333333333334) internal successors, (75), 8 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:59:39,028 INFO L276 IsEmpty]: Start isEmpty. Operand 100718 states and 368137 transitions. [2021-06-05 04:59:39,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 04:59:39,225 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 04:59:39,226 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 04:59:39,226 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 04:59:39,226 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 04:59:39,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 04:59:39,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1590701179, now seen corresponding path program 4 times [2021-06-05 04:59:39,227 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 04:59:39,227 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274548200] [2021-06-05 04:59:39,227 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 04:59:39,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 04:59:39,945 WARN L205 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 23 DAG size of output: 16 [2021-06-05 04:59:40,015 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 04:59:40,016 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 04:59:40,016 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274548200] [2021-06-05 04:59:40,016 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274548200] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 04:59:40,016 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 04:59:40,016 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 04:59:40,016 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1359231843] [2021-06-05 04:59:40,017 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 04:59:40,017 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 04:59:40,017 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 04:59:40,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=68, Unknown=0, NotChecked=0, Total=90 [2021-06-05 04:59:40,018 INFO L87 Difference]: Start difference. First operand 100718 states and 368137 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:59:42,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 04:59:42,062 INFO L93 Difference]: Finished difference Result 172724 states and 635449 transitions. [2021-06-05 04:59:42,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 04:59:42,063 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 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 75 [2021-06-05 04:59:42,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 04:59:42,516 INFO L225 Difference]: With dead ends: 172724 [2021-06-05 04:59:42,516 INFO L226 Difference]: Without dead ends: 172724 [2021-06-05 04:59:42,517 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 129 ImplicationChecksByTransitivity, 648.5ms TimeCoverageRelationStatistics Valid=160, Invalid=440, Unknown=0, NotChecked=0, Total=600 [2021-06-05 04:59:52,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 172724 states. [2021-06-05 04:59:55,012 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 172724 to 121087. [2021-06-05 04:59:55,167 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121087 states, 121086 states have (on average 3.661860165502205) internal successors, (443400), 121086 states have internal predecessors, (443400), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:59:55,498 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121087 states to 121087 states and 443400 transitions. [2021-06-05 04:59:55,498 INFO L78 Accepts]: Start accepts. Automaton has 121087 states and 443400 transitions. Word has length 75 [2021-06-05 04:59:55,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 04:59:55,499 INFO L482 AbstractCegarLoop]: Abstraction has 121087 states and 443400 transitions. [2021-06-05 04:59:55,499 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 04:59:55,499 INFO L276 IsEmpty]: Start isEmpty. Operand 121087 states and 443400 transitions. [2021-06-05 04:59:56,444 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 04:59:56,444 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 04:59:56,444 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 04:59:56,444 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 04:59:56,445 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 04:59:56,445 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 04:59:56,445 INFO L82 PathProgramCache]: Analyzing trace with hash -833082245, now seen corresponding path program 5 times [2021-06-05 04:59:56,446 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 04:59:56,449 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [992876538] [2021-06-05 04:59:56,450 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 04:59:56,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 04:59:57,146 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 04:59:57,146 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 04:59:57,147 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [992876538] [2021-06-05 04:59:57,147 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [992876538] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 04:59:57,148 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 04:59:57,148 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 04:59:57,149 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3811759] [2021-06-05 04:59:57,149 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 04:59:57,149 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 04:59:57,150 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 04:59:57,150 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-06-05 04:59:57,151 INFO L87 Difference]: Start difference. First operand 121087 states and 443400 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:00:00,224 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:00:00,225 INFO L93 Difference]: Finished difference Result 300980 states and 1100291 transitions. [2021-06-05 05:00:00,225 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 05:00:00,225 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 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 75 [2021-06-05 05:00:00,226 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:00:01,965 INFO L225 Difference]: With dead ends: 300980 [2021-06-05 05:00:01,965 INFO L226 Difference]: Without dead ends: 300980 [2021-06-05 05:00:01,965 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 355.7ms TimeCoverageRelationStatistics Valid=86, Invalid=294, Unknown=0, NotChecked=0, Total=380 [2021-06-05 05:00:15,676 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300980 states. [2021-06-05 05:00:19,601 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300980 to 154501. [2021-06-05 05:00:19,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 154501 states, 154500 states have (on average 3.674168284789644) internal successors, (567659), 154500 states have internal predecessors, (567659), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:00:21,030 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 154501 states to 154501 states and 567659 transitions. [2021-06-05 05:00:21,031 INFO L78 Accepts]: Start accepts. Automaton has 154501 states and 567659 transitions. Word has length 75 [2021-06-05 05:00:21,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:00:21,038 INFO L482 AbstractCegarLoop]: Abstraction has 154501 states and 567659 transitions. [2021-06-05 05:00:21,039 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:00:21,039 INFO L276 IsEmpty]: Start isEmpty. Operand 154501 states and 567659 transitions. [2021-06-05 05:00:21,479 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:00:21,480 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:00:21,480 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:00:21,480 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 05:00:21,480 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:00:21,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:00:21,481 INFO L82 PathProgramCache]: Analyzing trace with hash -1787041377, now seen corresponding path program 6 times [2021-06-05 05:00:21,481 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:00:21,481 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [508693776] [2021-06-05 05:00:21,481 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:00:21,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:00:21,592 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:00:21,593 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:00:21,593 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [508693776] [2021-06-05 05:00:21,593 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [508693776] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:00:21,593 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:00:21,593 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:00:21,593 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851152867] [2021-06-05 05:00:21,594 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:00:21,595 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:00:21,595 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:00:21,595 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:00:21,595 INFO L87 Difference]: Start difference. First operand 154501 states and 567659 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:00:23,290 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:00:23,290 INFO L93 Difference]: Finished difference Result 191695 states and 691514 transitions. [2021-06-05 05:00:23,291 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 05:00:23,291 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 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 75 [2021-06-05 05:00:23,291 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:00:23,893 INFO L225 Difference]: With dead ends: 191695 [2021-06-05 05:00:23,894 INFO L226 Difference]: Without dead ends: 190753 [2021-06-05 05:00:23,894 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 193.1ms TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-06-05 05:00:34,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190753 states. [2021-06-05 05:00:36,912 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190753 to 159192. [2021-06-05 05:00:37,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 159192 states, 159191 states have (on average 3.6644722377521344) internal successors, (583351), 159191 states have internal predecessors, (583351), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:00:38,373 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 159192 states to 159192 states and 583351 transitions. [2021-06-05 05:00:38,373 INFO L78 Accepts]: Start accepts. Automaton has 159192 states and 583351 transitions. Word has length 75 [2021-06-05 05:00:38,374 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:00:38,374 INFO L482 AbstractCegarLoop]: Abstraction has 159192 states and 583351 transitions. [2021-06-05 05:00:38,374 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:00:38,374 INFO L276 IsEmpty]: Start isEmpty. Operand 159192 states and 583351 transitions. [2021-06-05 05:00:38,777 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:00:38,777 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:00:38,778 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:00:38,778 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 05:00:38,778 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:00:38,778 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:00:38,778 INFO L82 PathProgramCache]: Analyzing trace with hash 67395163, now seen corresponding path program 7 times [2021-06-05 05:00:38,778 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:00:38,778 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1727902975] [2021-06-05 05:00:38,778 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:00:38,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:00:39,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:00:39,009 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:00:39,009 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1727902975] [2021-06-05 05:00:39,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1727902975] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:00:39,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:00:39,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 05:00:39,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [985635788] [2021-06-05 05:00:39,010 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 05:00:39,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:00:39,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 05:00:39,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=105, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:00:39,011 INFO L87 Difference]: Start difference. First operand 159192 states and 583351 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:00:42,358 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:00:42,358 INFO L93 Difference]: Finished difference Result 332982 states and 1211311 transitions. [2021-06-05 05:00:42,359 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2021-06-05 05:00:42,359 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 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 75 [2021-06-05 05:00:42,359 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:00:43,508 INFO L225 Difference]: With dead ends: 332982 [2021-06-05 05:00:43,508 INFO L226 Difference]: Without dead ends: 332982 [2021-06-05 05:00:43,509 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 76 ImplicationChecksByTransitivity, 270.8ms TimeCoverageRelationStatistics Valid=90, Invalid=330, Unknown=0, NotChecked=0, Total=420 [2021-06-05 05:00:57,478 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332982 states. [2021-06-05 05:01:01,777 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332982 to 186349. [2021-06-05 05:01:02,018 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186349 states, 186348 states have (on average 3.66544851568034) internal successors, (683049), 186348 states have internal predecessors, (683049), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:01:03,470 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186349 states to 186349 states and 683049 transitions. [2021-06-05 05:01:03,470 INFO L78 Accepts]: Start accepts. Automaton has 186349 states and 683049 transitions. Word has length 75 [2021-06-05 05:01:03,470 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:01:03,471 INFO L482 AbstractCegarLoop]: Abstraction has 186349 states and 683049 transitions. [2021-06-05 05:01:03,471 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:01:03,471 INFO L276 IsEmpty]: Start isEmpty. Operand 186349 states and 683049 transitions. [2021-06-05 05:01:03,879 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:01:03,880 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:01:03,880 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:01:03,880 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 05:01:03,880 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:01:03,880 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:01:03,880 INFO L82 PathProgramCache]: Analyzing trace with hash 261745055, now seen corresponding path program 8 times [2021-06-05 05:01:03,880 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:01:03,881 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [399379967] [2021-06-05 05:01:03,881 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:01:03,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:01:03,986 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:01:03,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:01:03,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [399379967] [2021-06-05 05:01:03,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [399379967] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:01:03,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:01:03,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:01:03,987 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1230139551] [2021-06-05 05:01:03,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:01:03,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:01:03,988 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:01:03,990 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:01:03,990 INFO L87 Difference]: Start difference. First operand 186349 states and 683049 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:01:06,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:01:06,010 INFO L93 Difference]: Finished difference Result 224238 states and 809085 transitions. [2021-06-05 05:01:06,010 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 05:01:06,011 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 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 75 [2021-06-05 05:01:06,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:01:07,231 INFO L225 Difference]: With dead ends: 224238 [2021-06-05 05:01:07,231 INFO L226 Difference]: Without dead ends: 222172 [2021-06-05 05:01:07,231 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 187.3ms TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-06-05 05:01:18,854 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 222172 states. [2021-06-05 05:01:21,672 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 222172 to 186766. [2021-06-05 05:01:21,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 186766 states, 186765 states have (on average 3.661590769148395) internal successors, (683857), 186765 states have internal predecessors, (683857), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:01:23,270 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 186766 states to 186766 states and 683857 transitions. [2021-06-05 05:01:23,270 INFO L78 Accepts]: Start accepts. Automaton has 186766 states and 683857 transitions. Word has length 75 [2021-06-05 05:01:23,270 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:01:23,270 INFO L482 AbstractCegarLoop]: Abstraction has 186766 states and 683857 transitions. [2021-06-05 05:01:23,270 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:01:23,271 INFO L276 IsEmpty]: Start isEmpty. Operand 186766 states and 683857 transitions. [2021-06-05 05:01:23,670 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:01:23,670 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:01:23,671 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:01:23,671 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 05:01:23,671 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:01:23,671 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:01:23,671 INFO L82 PathProgramCache]: Analyzing trace with hash 392321083, now seen corresponding path program 9 times [2021-06-05 05:01:23,671 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:01:23,671 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1812883841] [2021-06-05 05:01:23,671 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:01:23,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:01:23,698 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:01:23,698 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:01:23,698 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1812883841] [2021-06-05 05:01:23,698 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1812883841] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:01:23,698 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:01:23,699 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 05:01:23,699 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [485271809] [2021-06-05 05:01:23,699 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 05:01:23,699 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:01:23,699 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 05:01:23,700 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 05:01:23,700 INFO L87 Difference]: Start difference. First operand 186766 states and 683857 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:01:25,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:01:25,855 INFO L93 Difference]: Finished difference Result 178837 states and 645960 transitions. [2021-06-05 05:01:25,855 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 05:01:25,855 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-06-05 05:01:25,856 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:01:26,614 INFO L225 Difference]: With dead ends: 178837 [2021-06-05 05:01:26,614 INFO L226 Difference]: Without dead ends: 178795 [2021-06-05 05:01:26,614 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.6ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 05:01:38,431 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178795 states. [2021-06-05 05:01:41,073 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178795 to 177323. [2021-06-05 05:01:41,309 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 177323 states, 177322 states have (on average 3.6139001364748875) internal successors, (640824), 177322 states have internal predecessors, (640824), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:01:42,465 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 177323 states to 177323 states and 640824 transitions. [2021-06-05 05:01:42,465 INFO L78 Accepts]: Start accepts. Automaton has 177323 states and 640824 transitions. Word has length 75 [2021-06-05 05:01:42,465 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:01:42,465 INFO L482 AbstractCegarLoop]: Abstraction has 177323 states and 640824 transitions. [2021-06-05 05:01:42,466 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:01:42,466 INFO L276 IsEmpty]: Start isEmpty. Operand 177323 states and 640824 transitions. [2021-06-05 05:01:42,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:01:42,902 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:01:42,902 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:01:42,902 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 05:01:42,902 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:01:42,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:01:42,903 INFO L82 PathProgramCache]: Analyzing trace with hash 1448657563, now seen corresponding path program 10 times [2021-06-05 05:01:42,903 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:01:42,903 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1141454578] [2021-06-05 05:01:42,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:01:42,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:01:43,123 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:01:43,124 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:01:43,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1141454578] [2021-06-05 05:01:43,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1141454578] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:01:43,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:01:43,124 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 05:01:43,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [320156529] [2021-06-05 05:01:43,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 05:01:43,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:01:43,125 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 05:01:43,125 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:01:43,126 INFO L87 Difference]: Start difference. First operand 177323 states and 640824 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:01:45,592 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:01:45,592 INFO L93 Difference]: Finished difference Result 301437 states and 1083094 transitions. [2021-06-05 05:01:45,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2021-06-05 05:01:45,593 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 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 75 [2021-06-05 05:01:45,593 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:01:47,114 INFO L225 Difference]: With dead ends: 301437 [2021-06-05 05:01:47,114 INFO L226 Difference]: Without dead ends: 300668 [2021-06-05 05:01:47,114 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 90 ImplicationChecksByTransitivity, 320.2ms TimeCoverageRelationStatistics Valid=108, Invalid=398, Unknown=0, NotChecked=0, Total=506 [2021-06-05 05:02:00,819 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 300668 states. [2021-06-05 05:02:04,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 300668 to 193029. [2021-06-05 05:02:04,890 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193029 states, 193028 states have (on average 3.624137430839049) internal successors, (699560), 193028 states have internal predecessors, (699560), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:02:06,392 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193029 states to 193029 states and 699560 transitions. [2021-06-05 05:02:06,392 INFO L78 Accepts]: Start accepts. Automaton has 193029 states and 699560 transitions. Word has length 75 [2021-06-05 05:02:06,392 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:02:06,392 INFO L482 AbstractCegarLoop]: Abstraction has 193029 states and 699560 transitions. [2021-06-05 05:02:06,393 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:02:06,393 INFO L276 IsEmpty]: Start isEmpty. Operand 193029 states and 699560 transitions. [2021-06-05 05:02:06,797 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:02:06,797 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:02:06,797 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:02:06,797 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 05:02:06,797 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:02:06,798 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:02:06,798 INFO L82 PathProgramCache]: Analyzing trace with hash -1860346947, now seen corresponding path program 11 times [2021-06-05 05:02:06,798 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:02:06,798 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2015777803] [2021-06-05 05:02:06,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:02:06,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:02:06,903 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:02:06,903 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:02:06,903 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2015777803] [2021-06-05 05:02:06,903 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2015777803] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:02:06,903 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:02:06,903 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 05:02:06,903 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1232202461] [2021-06-05 05:02:06,904 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 05:02:06,904 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:02:06,905 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 05:02:06,905 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=28, Invalid=62, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:02:06,906 INFO L87 Difference]: Start difference. First operand 193029 states and 699560 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:02:11,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:02:11,897 INFO L93 Difference]: Finished difference Result 654848 states and 2399353 transitions. [2021-06-05 05:02:11,897 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2021-06-05 05:02:11,897 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 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 75 [2021-06-05 05:02:11,898 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:02:14,695 INFO L225 Difference]: With dead ends: 654848 [2021-06-05 05:02:14,695 INFO L226 Difference]: Without dead ends: 653561 [2021-06-05 05:02:14,695 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 162.6ms TimeCoverageRelationStatistics Valid=120, Invalid=342, Unknown=0, NotChecked=0, Total=462 [2021-06-05 05:02:38,041 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 653561 states. [2021-06-05 05:02:44,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 653561 to 220211. [2021-06-05 05:02:44,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 220211 states, 220210 states have (on average 3.6167294854911223) internal successors, (796440), 220210 states have internal predecessors, (796440), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:02:46,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220211 states to 220211 states and 796440 transitions. [2021-06-05 05:02:46,383 INFO L78 Accepts]: Start accepts. Automaton has 220211 states and 796440 transitions. Word has length 75 [2021-06-05 05:02:46,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:02:46,383 INFO L482 AbstractCegarLoop]: Abstraction has 220211 states and 796440 transitions. [2021-06-05 05:02:46,383 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:02:46,383 INFO L276 IsEmpty]: Start isEmpty. Operand 220211 states and 796440 transitions. [2021-06-05 05:02:47,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:02:47,516 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:02:47,516 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:02:47,516 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 05:02:47,516 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:02:47,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:02:47,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1523420445, now seen corresponding path program 12 times [2021-06-05 05:02:47,516 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:02:47,517 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1773237413] [2021-06-05 05:02:47,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:02:47,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:02:47,619 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:02:47,620 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:02:47,620 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1773237413] [2021-06-05 05:02:47,620 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1773237413] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:02:47,620 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:02:47,620 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:02:47,620 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790999723] [2021-06-05 05:02:47,620 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:02:47,620 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:02:47,621 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:02:47,622 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:02:47,622 INFO L87 Difference]: Start difference. First operand 220211 states and 796440 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:02:51,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:02:51,123 INFO L93 Difference]: Finished difference Result 484911 states and 1767616 transitions. [2021-06-05 05:02:51,123 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 05:02:51,123 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 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 75 [2021-06-05 05:02:51,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:02:52,628 INFO L225 Difference]: With dead ends: 484911 [2021-06-05 05:02:52,629 INFO L226 Difference]: Without dead ends: 484755 [2021-06-05 05:02:52,629 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 75 ImplicationChecksByTransitivity, 171.8ms TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2021-06-05 05:03:13,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 484755 states. [2021-06-05 05:03:19,290 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 484755 to 238155. [2021-06-05 05:03:19,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 238155 states, 238154 states have (on average 3.6230170393946772) internal successors, (862836), 238154 states have internal predecessors, (862836), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:03:21,094 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 238155 states to 238155 states and 862836 transitions. [2021-06-05 05:03:21,094 INFO L78 Accepts]: Start accepts. Automaton has 238155 states and 862836 transitions. Word has length 75 [2021-06-05 05:03:21,095 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:03:21,095 INFO L482 AbstractCegarLoop]: Abstraction has 238155 states and 862836 transitions. [2021-06-05 05:03:21,095 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:03:21,095 INFO L276 IsEmpty]: Start isEmpty. Operand 238155 states and 862836 transitions. [2021-06-05 05:03:21,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:03:21,599 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:03:21,599 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:03:21,599 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 05:03:21,600 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:03:21,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:03:21,600 INFO L82 PathProgramCache]: Analyzing trace with hash -1871069443, now seen corresponding path program 13 times [2021-06-05 05:03:21,600 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:03:21,600 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677205099] [2021-06-05 05:03:21,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:03:21,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:03:21,691 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:03:21,692 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:03:21,692 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677205099] [2021-06-05 05:03:21,692 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677205099] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:03:21,692 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:03:21,692 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:03:21,692 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [888501954] [2021-06-05 05:03:21,692 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:03:21,692 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:03:21,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:03:21,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:03:21,693 INFO L87 Difference]: Start difference. First operand 238155 states and 862836 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:03:25,986 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:03:25,987 INFO L93 Difference]: Finished difference Result 501095 states and 1825900 transitions. [2021-06-05 05:03:25,987 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 05:03:25,987 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 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 75 [2021-06-05 05:03:25,987 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:03:27,509 INFO L225 Difference]: With dead ends: 501095 [2021-06-05 05:03:27,509 INFO L226 Difference]: Without dead ends: 499860 [2021-06-05 05:03:27,509 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 160.8ms TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2021-06-05 05:03:47,216 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 499860 states. [2021-06-05 05:03:52,273 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 499860 to 222826. [2021-06-05 05:03:53,244 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 222826 states, 222825 states have (on average 3.6172063278357456) internal successors, (806004), 222825 states have internal predecessors, (806004), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:03:54,072 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222826 states to 222826 states and 806004 transitions. [2021-06-05 05:03:54,072 INFO L78 Accepts]: Start accepts. Automaton has 222826 states and 806004 transitions. Word has length 75 [2021-06-05 05:03:54,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:03:54,072 INFO L482 AbstractCegarLoop]: Abstraction has 222826 states and 806004 transitions. [2021-06-05 05:03:54,072 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:03:54,072 INFO L276 IsEmpty]: Start isEmpty. Operand 222826 states and 806004 transitions. [2021-06-05 05:03:55,254 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:03:55,254 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:03:55,254 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:03:55,254 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 05:03:55,255 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:03:55,255 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:03:55,255 INFO L82 PathProgramCache]: Analyzing trace with hash -489807043, now seen corresponding path program 14 times [2021-06-05 05:03:55,255 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:03:55,256 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2044018906] [2021-06-05 05:03:55,256 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:03:55,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:03:55,389 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:03:55,389 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:03:55,389 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2044018906] [2021-06-05 05:03:55,389 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2044018906] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:03:55,390 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:03:55,390 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:03:55,390 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [369045789] [2021-06-05 05:03:55,390 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:03:55,390 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:03:55,390 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:03:55,391 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:03:55,391 INFO L87 Difference]: Start difference. First operand 222826 states and 806004 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:03:58,992 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:03:58,992 INFO L93 Difference]: Finished difference Result 433993 states and 1573268 transitions. [2021-06-05 05:03:58,993 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 05:03:58,993 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 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 75 [2021-06-05 05:03:58,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:04:00,335 INFO L225 Difference]: With dead ends: 433993 [2021-06-05 05:04:00,335 INFO L226 Difference]: Without dead ends: 432650 [2021-06-05 05:04:00,336 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 1 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 78 ImplicationChecksByTransitivity, 180.2ms TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2021-06-05 05:04:18,026 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 432650 states. [2021-06-05 05:04:22,919 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 432650 to 207018. [2021-06-05 05:04:23,182 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 207018 states, 207017 states have (on average 3.6110995715327725) internal successors, (747559), 207017 states have internal predecessors, (747559), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:04:24,912 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 207018 states to 207018 states and 747559 transitions. [2021-06-05 05:04:24,912 INFO L78 Accepts]: Start accepts. Automaton has 207018 states and 747559 transitions. Word has length 75 [2021-06-05 05:04:24,912 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:04:24,913 INFO L482 AbstractCegarLoop]: Abstraction has 207018 states and 747559 transitions. [2021-06-05 05:04:24,913 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:04:24,914 INFO L276 IsEmpty]: Start isEmpty. Operand 207018 states and 747559 transitions. [2021-06-05 05:04:25,745 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:04:25,746 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:04:25,746 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:04:25,746 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 05:04:25,746 INFO L430 AbstractCegarLoop]: === Iteration 15 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:04:25,747 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:04:25,747 INFO L82 PathProgramCache]: Analyzing trace with hash 410670365, now seen corresponding path program 15 times [2021-06-05 05:04:25,747 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:04:25,747 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [629198652] [2021-06-05 05:04:25,747 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:04:25,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:04:25,923 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:04:25,924 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:04:25,924 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [629198652] [2021-06-05 05:04:25,924 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [629198652] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:04:25,924 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:04:25,924 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:04:25,924 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [3646068] [2021-06-05 05:04:25,925 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:04:25,925 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:04:25,925 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:04:25,925 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=73, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:04:25,925 INFO L87 Difference]: Start difference. First operand 207018 states and 747559 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:04:29,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:04:29,536 INFO L93 Difference]: Finished difference Result 369076 states and 1335939 transitions. [2021-06-05 05:04:29,536 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2021-06-05 05:04:29,536 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 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 75 [2021-06-05 05:04:29,537 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:04:31,347 INFO L225 Difference]: With dead ends: 369076 [2021-06-05 05:04:31,348 INFO L226 Difference]: Without dead ends: 367708 [2021-06-05 05:04:31,348 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 72 ImplicationChecksByTransitivity, 200.6ms TimeCoverageRelationStatistics Valid=156, Invalid=306, Unknown=0, NotChecked=0, Total=462 [2021-06-05 05:04:48,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 367708 states. [2021-06-05 05:04:52,442 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 367708 to 172048. [2021-06-05 05:04:52,671 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 172048 states, 172047 states have (on average 3.5901933773910617) internal successors, (617682), 172047 states have internal predecessors, (617682), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:04:53,183 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 172048 states to 172048 states and 617682 transitions. [2021-06-05 05:04:53,184 INFO L78 Accepts]: Start accepts. Automaton has 172048 states and 617682 transitions. Word has length 75 [2021-06-05 05:04:53,184 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:04:53,184 INFO L482 AbstractCegarLoop]: Abstraction has 172048 states and 617682 transitions. [2021-06-05 05:04:53,184 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:04:53,184 INFO L276 IsEmpty]: Start isEmpty. Operand 172048 states and 617682 transitions. [2021-06-05 05:04:54,281 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:04:54,282 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:04:54,282 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:04:54,282 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2021-06-05 05:04:54,282 INFO L430 AbstractCegarLoop]: === Iteration 16 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:04:54,300 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:04:54,301 INFO L82 PathProgramCache]: Analyzing trace with hash 1200968973, now seen corresponding path program 16 times [2021-06-05 05:04:54,301 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:04:54,301 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1012120401] [2021-06-05 05:04:54,312 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:04:54,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:04:54,420 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:04:54,421 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:04:54,421 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1012120401] [2021-06-05 05:04:54,422 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1012120401] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:04:54,422 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:04:54,423 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:04:54,423 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [825643714] [2021-06-05 05:04:54,423 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:04:54,423 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:04:54,424 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:04:54,424 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:04:54,424 INFO L87 Difference]: Start difference. First operand 172048 states and 617682 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:04:57,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:04:57,823 INFO L93 Difference]: Finished difference Result 452413 states and 1622907 transitions. [2021-06-05 05:04:57,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-05 05:04:57,823 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 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 75 [2021-06-05 05:04:57,823 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:04:59,182 INFO L225 Difference]: With dead ends: 452413 [2021-06-05 05:04:59,182 INFO L226 Difference]: Without dead ends: 452034 [2021-06-05 05:04:59,183 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 33 ImplicationChecksByTransitivity, 123.3ms TimeCoverageRelationStatistics Valid=67, Invalid=173, Unknown=0, NotChecked=0, Total=240 [2021-06-05 05:05:16,457 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452034 states. [2021-06-05 05:05:21,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452034 to 184443. [2021-06-05 05:05:21,941 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184443 states, 184442 states have (on average 3.591210244955054) internal successors, (662370), 184442 states have internal predecessors, (662370), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:05:22,641 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184443 states to 184443 states and 662370 transitions. [2021-06-05 05:05:22,642 INFO L78 Accepts]: Start accepts. Automaton has 184443 states and 662370 transitions. Word has length 75 [2021-06-05 05:05:22,642 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:05:22,642 INFO L482 AbstractCegarLoop]: Abstraction has 184443 states and 662370 transitions. [2021-06-05 05:05:22,642 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:05:22,642 INFO L276 IsEmpty]: Start isEmpty. Operand 184443 states and 662370 transitions. [2021-06-05 05:05:23,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:05:23,022 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:05:23,023 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:05:23,023 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2021-06-05 05:05:23,023 INFO L430 AbstractCegarLoop]: === Iteration 17 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:05:23,023 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:05:23,023 INFO L82 PathProgramCache]: Analyzing trace with hash 859844631, now seen corresponding path program 17 times [2021-06-05 05:05:23,023 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:05:23,023 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1629867929] [2021-06-05 05:05:23,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:05:23,032 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:05:23,124 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:05:23,124 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:05:23,124 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1629867929] [2021-06-05 05:05:23,124 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1629867929] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:05:23,124 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:05:23,124 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:05:23,124 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2091541043] [2021-06-05 05:05:23,125 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:05:23,125 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:05:23,126 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:05:23,126 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:05:23,126 INFO L87 Difference]: Start difference. First operand 184443 states and 662370 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:05:26,369 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:05:26,370 INFO L93 Difference]: Finished difference Result 372669 states and 1333487 transitions. [2021-06-05 05:05:26,370 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2021-06-05 05:05:26,370 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 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 75 [2021-06-05 05:05:26,370 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:05:28,527 INFO L225 Difference]: With dead ends: 372669 [2021-06-05 05:05:28,527 INFO L226 Difference]: Without dead ends: 372424 [2021-06-05 05:05:28,540 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 113.0ms TimeCoverageRelationStatistics Valid=62, Invalid=148, Unknown=0, NotChecked=0, Total=210 [2021-06-05 05:05:45,109 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 372424 states. [2021-06-05 05:05:49,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 372424 to 183731. [2021-06-05 05:05:49,638 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 183731 states, 183730 states have (on average 3.5906112229902574) internal successors, (659703), 183730 states have internal predecessors, (659703), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:05:50,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 183731 states to 183731 states and 659703 transitions. [2021-06-05 05:05:50,186 INFO L78 Accepts]: Start accepts. Automaton has 183731 states and 659703 transitions. Word has length 75 [2021-06-05 05:05:50,187 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:05:50,187 INFO L482 AbstractCegarLoop]: Abstraction has 183731 states and 659703 transitions. [2021-06-05 05:05:50,187 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:05:50,187 INFO L276 IsEmpty]: Start isEmpty. Operand 183731 states and 659703 transitions. [2021-06-05 05:05:51,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:05:51,374 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:05:51,374 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:05:51,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2021-06-05 05:05:51,374 INFO L430 AbstractCegarLoop]: === Iteration 18 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:05:51,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:05:51,375 INFO L82 PathProgramCache]: Analyzing trace with hash -604267675, now seen corresponding path program 18 times [2021-06-05 05:05:51,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:05:51,375 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1256779504] [2021-06-05 05:05:51,375 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:05:51,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:05:51,524 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:05:51,524 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:05:51,524 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1256779504] [2021-06-05 05:05:51,524 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1256779504] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:05:51,524 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:05:51,524 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 05:05:51,524 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1543308385] [2021-06-05 05:05:51,526 INFO L462 AbstractCegarLoop]: Interpolant automaton has 10 states [2021-06-05 05:05:51,526 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:05:51,526 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-06-05 05:05:51,526 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=67, Unknown=0, NotChecked=0, Total=90 [2021-06-05 05:05:51,527 INFO L87 Difference]: Start difference. First operand 183731 states and 659703 transitions. Second operand has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:05:53,417 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:05:53,417 INFO L93 Difference]: Finished difference Result 199112 states and 710504 transitions. [2021-06-05 05:05:53,418 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 05:05:53,418 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 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 75 [2021-06-05 05:05:53,418 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:05:53,976 INFO L225 Difference]: With dead ends: 199112 [2021-06-05 05:05:53,976 INFO L226 Difference]: Without dead ends: 196783 [2021-06-05 05:05:53,977 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 32 ImplicationChecksByTransitivity, 217.7ms TimeCoverageRelationStatistics Valid=87, Invalid=185, Unknown=0, NotChecked=0, Total=272 [2021-06-05 05:06:04,446 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 196783 states. [2021-06-05 05:06:07,506 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 196783 to 193531. [2021-06-05 05:06:07,779 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 193531 states, 193530 states have (on average 3.5799255929313283) internal successors, (692823), 193530 states have internal predecessors, (692823), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:06:08,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 193531 states to 193531 states and 692823 transitions. [2021-06-05 05:06:08,402 INFO L78 Accepts]: Start accepts. Automaton has 193531 states and 692823 transitions. Word has length 75 [2021-06-05 05:06:08,402 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:06:08,402 INFO L482 AbstractCegarLoop]: Abstraction has 193531 states and 692823 transitions. [2021-06-05 05:06:08,402 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 10 states, 10 states have (on average 7.5) internal successors, (75), 9 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:06:08,402 INFO L276 IsEmpty]: Start isEmpty. Operand 193531 states and 692823 transitions. [2021-06-05 05:06:09,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:06:09,655 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:06:09,655 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:06:09,655 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2021-06-05 05:06:09,656 INFO L430 AbstractCegarLoop]: === Iteration 19 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:06:09,656 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:06:09,656 INFO L82 PathProgramCache]: Analyzing trace with hash 2086877239, now seen corresponding path program 19 times [2021-06-05 05:06:09,656 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:06:09,656 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [5858816] [2021-06-05 05:06:09,656 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:06:09,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:06:09,997 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:06:09,997 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:06:09,997 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [5858816] [2021-06-05 05:06:09,997 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [5858816] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:06:09,997 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:06:09,997 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2021-06-05 05:06:09,997 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550434364] [2021-06-05 05:06:09,998 INFO L462 AbstractCegarLoop]: Interpolant automaton has 15 states [2021-06-05 05:06:09,999 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:06:09,999 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2021-06-05 05:06:09,999 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=167, Unknown=0, NotChecked=0, Total=210 [2021-06-05 05:06:09,999 INFO L87 Difference]: Start difference. First operand 193531 states and 692823 transitions. Second operand has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:06:12,043 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:06:12,043 INFO L93 Difference]: Finished difference Result 315638 states and 1109432 transitions. [2021-06-05 05:06:12,044 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 05:06:12,044 INFO L78 Accepts]: Start accepts. Automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 states have internal predecessors, (75), 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 75 [2021-06-05 05:06:12,044 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:06:13,334 INFO L225 Difference]: With dead ends: 315638 [2021-06-05 05:06:13,334 INFO L226 Difference]: Without dead ends: 299217 [2021-06-05 05:06:13,334 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 3 SyntacticMatches, 4 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 73 ImplicationChecksByTransitivity, 365.9ms TimeCoverageRelationStatistics Valid=85, Invalid=335, Unknown=0, NotChecked=0, Total=420 [2021-06-05 05:06:25,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 299217 states. [2021-06-05 05:06:30,044 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 299217 to 246599. [2021-06-05 05:06:30,339 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 246599 states, 246598 states have (on average 3.5487027469809163) internal successors, (875103), 246598 states have internal predecessors, (875103), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:06:31,109 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246599 states to 246599 states and 875103 transitions. [2021-06-05 05:06:31,109 INFO L78 Accepts]: Start accepts. Automaton has 246599 states and 875103 transitions. Word has length 75 [2021-06-05 05:06:31,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:06:31,109 INFO L482 AbstractCegarLoop]: Abstraction has 246599 states and 875103 transitions. [2021-06-05 05:06:31,109 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 15 states, 15 states have (on average 5.0) internal successors, (75), 14 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:06:31,110 INFO L276 IsEmpty]: Start isEmpty. Operand 246599 states and 875103 transitions. [2021-06-05 05:06:32,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:06:32,358 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:06:32,358 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:06:32,358 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2021-06-05 05:06:32,358 INFO L430 AbstractCegarLoop]: === Iteration 20 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:06:32,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:06:32,358 INFO L82 PathProgramCache]: Analyzing trace with hash 114542167, now seen corresponding path program 20 times [2021-06-05 05:06:32,359 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:06:32,359 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [472471091] [2021-06-05 05:06:32,359 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:06:32,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:06:32,492 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:06:32,492 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:06:32,492 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [472471091] [2021-06-05 05:06:32,492 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [472471091] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:06:32,492 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:06:32,492 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 05:06:32,492 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1634847249] [2021-06-05 05:06:32,493 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 05:06:32,493 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:06:32,493 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 05:06:32,493 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=34, Invalid=98, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:06:32,493 INFO L87 Difference]: Start difference. First operand 246599 states and 875103 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:06:37,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:06:37,559 INFO L93 Difference]: Finished difference Result 615354 states and 2149380 transitions. [2021-06-05 05:06:37,559 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2021-06-05 05:06:37,559 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 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 75 [2021-06-05 05:06:37,560 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:06:39,222 INFO L225 Difference]: With dead ends: 615354 [2021-06-05 05:06:39,222 INFO L226 Difference]: Without dead ends: 583898 [2021-06-05 05:06:39,222 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 297 ImplicationChecksByTransitivity, 424.6ms TimeCoverageRelationStatistics Valid=326, Invalid=1006, Unknown=0, NotChecked=0, Total=1332 [2021-06-05 05:06:59,395 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583898 states. [2021-06-05 05:07:08,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583898 to 289469. [2021-06-05 05:07:08,721 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 289469 states, 289468 states have (on average 3.552855583346) internal successors, (1028438), 289468 states have internal predecessors, (1028438), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:07:11,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 289469 states to 289469 states and 1028438 transitions. [2021-06-05 05:07:11,142 INFO L78 Accepts]: Start accepts. Automaton has 289469 states and 1028438 transitions. Word has length 75 [2021-06-05 05:07:11,142 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:07:11,142 INFO L482 AbstractCegarLoop]: Abstraction has 289469 states and 1028438 transitions. [2021-06-05 05:07:11,142 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:07:11,142 INFO L276 IsEmpty]: Start isEmpty. Operand 289469 states and 1028438 transitions. [2021-06-05 05:07:12,222 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:07:12,222 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:07:12,222 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:07:12,223 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2021-06-05 05:07:12,223 INFO L430 AbstractCegarLoop]: === Iteration 21 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:07:12,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:07:12,223 INFO L82 PathProgramCache]: Analyzing trace with hash 1886350067, now seen corresponding path program 21 times [2021-06-05 05:07:12,223 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:07:12,223 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627482714] [2021-06-05 05:07:12,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:07:12,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:07:12,493 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:07:12,493 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:07:12,493 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627482714] [2021-06-05 05:07:12,494 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627482714] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:07:12,494 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:07:12,494 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:07:12,494 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1001189965] [2021-06-05 05:07:12,494 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:07:12,495 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:07:12,495 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:07:12,495 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=83, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:07:12,495 INFO L87 Difference]: Start difference. First operand 289469 states and 1028438 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:07:15,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:07:15,166 INFO L93 Difference]: Finished difference Result 317158 states and 1117415 transitions. [2021-06-05 05:07:15,166 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-06-05 05:07:15,166 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 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 75 [2021-06-05 05:07:15,167 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:07:16,077 INFO L225 Difference]: With dead ends: 317158 [2021-06-05 05:07:16,077 INFO L226 Difference]: Without dead ends: 316410 [2021-06-05 05:07:16,078 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 208.1ms TimeCoverageRelationStatistics Valid=63, Invalid=177, Unknown=0, NotChecked=0, Total=240 [2021-06-05 05:07:29,265 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 316410 states. [2021-06-05 05:07:34,218 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 316410 to 286773. [2021-06-05 05:07:34,604 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 286773 states, 286772 states have (on average 3.5524981518418812) internal successors, (1018757), 286772 states have internal predecessors, (1018757), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:07:36,497 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286773 states to 286773 states and 1018757 transitions. [2021-06-05 05:07:36,498 INFO L78 Accepts]: Start accepts. Automaton has 286773 states and 1018757 transitions. Word has length 75 [2021-06-05 05:07:36,498 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:07:36,498 INFO L482 AbstractCegarLoop]: Abstraction has 286773 states and 1018757 transitions. [2021-06-05 05:07:36,498 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:07:36,498 INFO L276 IsEmpty]: Start isEmpty. Operand 286773 states and 1018757 transitions. [2021-06-05 05:07:37,130 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:07:37,130 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:07:37,131 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:07:37,131 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2021-06-05 05:07:37,131 INFO L430 AbstractCegarLoop]: === Iteration 22 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:07:37,131 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:07:37,131 INFO L82 PathProgramCache]: Analyzing trace with hash 1370146751, now seen corresponding path program 22 times [2021-06-05 05:07:37,131 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:07:37,131 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021514593] [2021-06-05 05:07:37,131 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:07:37,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:07:37,145 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:07:37,145 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:07:37,146 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021514593] [2021-06-05 05:07:37,146 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2021514593] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:07:37,146 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:07:37,146 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 05:07:37,146 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1920914757] [2021-06-05 05:07:37,146 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 05:07:37,146 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:07:37,147 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 05:07:37,147 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 05:07:37,147 INFO L87 Difference]: Start difference. First operand 286773 states and 1018757 transitions. Second operand has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:07:38,972 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:07:38,972 INFO L93 Difference]: Finished difference Result 272572 states and 949197 transitions. [2021-06-05 05:07:38,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 05:07:38,976 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 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 75 [2021-06-05 05:07:38,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:07:40,176 INFO L225 Difference]: With dead ends: 272572 [2021-06-05 05:07:40,176 INFO L226 Difference]: Without dead ends: 272572 [2021-06-05 05:07:40,176 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 05:07:52,193 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 272572 states. [2021-06-05 05:07:55,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 272572 to 272512. [2021-06-05 05:07:56,221 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 272512 states, 272511 states have (on average 3.4823805277585125) internal successors, (948987), 272511 states have internal predecessors, (948987), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:07:57,762 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 272512 states to 272512 states and 948987 transitions. [2021-06-05 05:07:57,763 INFO L78 Accepts]: Start accepts. Automaton has 272512 states and 948987 transitions. Word has length 75 [2021-06-05 05:07:57,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:07:57,763 INFO L482 AbstractCegarLoop]: Abstraction has 272512 states and 948987 transitions. [2021-06-05 05:07:57,763 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 25.0) internal successors, (75), 3 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:07:57,763 INFO L276 IsEmpty]: Start isEmpty. Operand 272512 states and 948987 transitions. [2021-06-05 05:07:59,240 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:07:59,240 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:07:59,240 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:07:59,240 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2021-06-05 05:07:59,240 INFO L430 AbstractCegarLoop]: === Iteration 23 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:07:59,241 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:07:59,241 INFO L82 PathProgramCache]: Analyzing trace with hash -1130103073, now seen corresponding path program 23 times [2021-06-05 05:07:59,241 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:07:59,241 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2112495957] [2021-06-05 05:07:59,241 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:07:59,291 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:07:59,613 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:07:59,613 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:07:59,613 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2112495957] [2021-06-05 05:07:59,614 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2112495957] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:07:59,614 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:07:59,614 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2021-06-05 05:07:59,614 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1636267895] [2021-06-05 05:07:59,614 INFO L462 AbstractCegarLoop]: Interpolant automaton has 13 states [2021-06-05 05:07:59,614 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:07:59,615 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2021-06-05 05:07:59,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=39, Invalid=117, Unknown=0, NotChecked=0, Total=156 [2021-06-05 05:07:59,615 INFO L87 Difference]: Start difference. First operand 272512 states and 948987 transitions. Second operand has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:08:02,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:08:02,627 INFO L93 Difference]: Finished difference Result 322096 states and 1116136 transitions. [2021-06-05 05:08:02,627 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2021-06-05 05:08:02,627 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 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 75 [2021-06-05 05:08:02,628 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:08:04,405 INFO L225 Difference]: With dead ends: 322096 [2021-06-05 05:08:04,406 INFO L226 Difference]: Without dead ends: 321712 [2021-06-05 05:08:04,406 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 82 ImplicationChecksByTransitivity, 444.7ms TimeCoverageRelationStatistics Valid=123, Invalid=429, Unknown=0, NotChecked=0, Total=552 [2021-06-05 05:08:18,852 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321712 states. [2021-06-05 05:08:22,959 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321712 to 292852. [2021-06-05 05:08:23,331 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 292852 states, 292851 states have (on average 3.4696005818658637) internal successors, (1016076), 292851 states have internal predecessors, (1016076), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:08:25,005 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 292852 states to 292852 states and 1016076 transitions. [2021-06-05 05:08:25,005 INFO L78 Accepts]: Start accepts. Automaton has 292852 states and 1016076 transitions. Word has length 75 [2021-06-05 05:08:25,006 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:08:25,006 INFO L482 AbstractCegarLoop]: Abstraction has 292852 states and 1016076 transitions. [2021-06-05 05:08:25,007 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 13 states, 13 states have (on average 5.769230769230769) internal successors, (75), 12 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:08:25,007 INFO L276 IsEmpty]: Start isEmpty. Operand 292852 states and 1016076 transitions. [2021-06-05 05:08:26,411 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:08:26,412 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:08:26,412 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:08:26,412 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2021-06-05 05:08:26,412 INFO L430 AbstractCegarLoop]: === Iteration 24 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:08:26,412 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:08:26,412 INFO L82 PathProgramCache]: Analyzing trace with hash 532907179, now seen corresponding path program 24 times [2021-06-05 05:08:26,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:08:26,413 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [170463222] [2021-06-05 05:08:26,413 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:08:26,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:08:26,510 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:08:26,510 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:08:26,510 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [170463222] [2021-06-05 05:08:26,510 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [170463222] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:08:26,510 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:08:26,510 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2021-06-05 05:08:26,511 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1991800843] [2021-06-05 05:08:26,511 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-06-05 05:08:26,511 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:08:26,511 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-06-05 05:08:26,511 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=91, Unknown=0, NotChecked=0, Total=110 [2021-06-05 05:08:26,512 INFO L87 Difference]: Start difference. First operand 292852 states and 1016076 transitions. Second operand has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:08:28,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:08:28,529 INFO L93 Difference]: Finished difference Result 324280 states and 1118552 transitions. [2021-06-05 05:08:28,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2021-06-05 05:08:28,529 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 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 75 [2021-06-05 05:08:28,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:08:29,854 INFO L225 Difference]: With dead ends: 324280 [2021-06-05 05:08:29,854 INFO L226 Difference]: Without dead ends: 320319 [2021-06-05 05:08:29,854 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 37 ImplicationChecksByTransitivity, 169.3ms TimeCoverageRelationStatistics Valid=86, Invalid=334, Unknown=0, NotChecked=0, Total=420 [2021-06-05 05:08:42,163 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320319 states. [2021-06-05 05:08:46,757 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320319 to 290527. [2021-06-05 05:08:47,157 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 290527 states, 290526 states have (on average 3.4699923586873465) internal successors, (1008123), 290526 states have internal predecessors, (1008123), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:08:48,995 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290527 states to 290527 states and 1008123 transitions. [2021-06-05 05:08:48,995 INFO L78 Accepts]: Start accepts. Automaton has 290527 states and 1008123 transitions. Word has length 75 [2021-06-05 05:08:48,995 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:08:48,995 INFO L482 AbstractCegarLoop]: Abstraction has 290527 states and 1008123 transitions. [2021-06-05 05:08:48,995 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 6.818181818181818) internal successors, (75), 10 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:08:48,995 INFO L276 IsEmpty]: Start isEmpty. Operand 290527 states and 1008123 transitions. [2021-06-05 05:08:49,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:08:49,597 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:08:49,597 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:08:49,597 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2021-06-05 05:08:49,597 INFO L430 AbstractCegarLoop]: === Iteration 25 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:08:49,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:08:49,597 INFO L82 PathProgramCache]: Analyzing trace with hash 58243295, now seen corresponding path program 25 times [2021-06-05 05:08:49,597 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:08:49,600 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1366060595] [2021-06-05 05:08:49,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:08:49,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:08:49,788 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:08:49,788 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:08:49,788 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1366060595] [2021-06-05 05:08:49,788 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1366060595] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:08:49,788 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:08:49,788 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2021-06-05 05:08:49,788 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417278638] [2021-06-05 05:08:49,789 INFO L462 AbstractCegarLoop]: Interpolant automaton has 12 states [2021-06-05 05:08:49,789 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:08:49,789 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2021-06-05 05:08:49,789 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2021-06-05 05:08:49,789 INFO L87 Difference]: Start difference. First operand 290527 states and 1008123 transitions. Second operand has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:08:52,628 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:08:52,628 INFO L93 Difference]: Finished difference Result 305493 states and 1055715 transitions. [2021-06-05 05:08:52,628 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2021-06-05 05:08:52,628 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 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 75 [2021-06-05 05:08:52,629 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:08:53,395 INFO L225 Difference]: With dead ends: 305493 [2021-06-05 05:08:53,396 INFO L226 Difference]: Without dead ends: 305493 [2021-06-05 05:08:53,396 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 3 SyntacticMatches, 3 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 36 ImplicationChecksByTransitivity, 232.5ms TimeCoverageRelationStatistics Valid=72, Invalid=234, Unknown=0, NotChecked=0, Total=306 [2021-06-05 05:09:07,983 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 305493 states. [2021-06-05 05:09:11,974 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 305493 to 297949. [2021-06-05 05:09:13,201 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 297949 states, 297948 states have (on average 3.4605837260193053) internal successors, (1031074), 297948 states have internal predecessors, (1031074), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:09:14,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 297949 states to 297949 states and 1031074 transitions. [2021-06-05 05:09:14,111 INFO L78 Accepts]: Start accepts. Automaton has 297949 states and 1031074 transitions. Word has length 75 [2021-06-05 05:09:14,111 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 05:09:14,111 INFO L482 AbstractCegarLoop]: Abstraction has 297949 states and 1031074 transitions. [2021-06-05 05:09:14,111 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 12 states, 12 states have (on average 6.25) internal successors, (75), 11 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:09:14,111 INFO L276 IsEmpty]: Start isEmpty. Operand 297949 states and 1031074 transitions. [2021-06-05 05:09:15,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 76 [2021-06-05 05:09:15,571 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 05:09:15,571 INFO L521 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-06-05 05:09:15,571 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2021-06-05 05:09:15,571 INFO L430 AbstractCegarLoop]: === Iteration 26 === [ULTIMATE.startErr3INUSE_VIOLATION, ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 05:09:15,572 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 05:09:15,572 INFO L82 PathProgramCache]: Analyzing trace with hash -1792079649, now seen corresponding path program 26 times [2021-06-05 05:09:15,572 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 05:09:15,572 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469049916] [2021-06-05 05:09:15,572 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 05:09:15,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 05:09:16,079 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-05 05:09:16,079 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 05:09:16,079 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469049916] [2021-06-05 05:09:16,080 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [469049916] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 05:09:16,080 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 05:09:16,080 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [19] imperfect sequences [] total 19 [2021-06-05 05:09:16,080 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [950592731] [2021-06-05 05:09:16,080 INFO L462 AbstractCegarLoop]: Interpolant automaton has 20 states [2021-06-05 05:09:16,080 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 05:09:16,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2021-06-05 05:09:16,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=56, Invalid=324, Unknown=0, NotChecked=0, Total=380 [2021-06-05 05:09:16,081 INFO L87 Difference]: Start difference. First operand 297949 states and 1031074 transitions. Second operand has 20 states, 20 states have (on average 3.75) internal successors, (75), 19 states have internal predecessors, (75), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 05:09:21,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 05:09:21,516 INFO L93 Difference]: Finished difference Result 452515 states and 1558723 transitions. [2021-06-05 05:09:21,516 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 36 states. [2021-06-05 05:09:21,516 INFO L78 Accepts]: Start accepts. Automaton has has 20 states, 20 states have (on average 3.75) internal successors, (75), 19 states have internal predecessors, (75), 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 75 [2021-06-05 05:09:21,517 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 05:09:22,873 INFO L225 Difference]: With dead ends: 452515 [2021-06-05 05:09:22,873 INFO L226 Difference]: Without dead ends: 452515 [2021-06-05 05:09:22,874 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 47 GetRequests, 1 SyntacticMatches, 3 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 380 ImplicationChecksByTransitivity, 1455.8ms TimeCoverageRelationStatistics Valid=392, Invalid=1588, Unknown=0, NotChecked=0, Total=1980 [2021-06-05 05:09:39,682 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 452515 states. [2021-06-05 05:09:46,881 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 452515 to 358870. [2021-06-05 05:09:47,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 358870 states, 358869 states have (on average 3.453655790831752) internal successors, (1239410), 358869 states have internal predecessors, (1239410), 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) Received shutdown request... [2021-06-05 05:09:49,107 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2021-06-05 05:09:49,107 WARN L547 AbstractCegarLoop]: Verification canceled [2021-06-05 05:09:49,109 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 05:09:49,112 WARN L196 ceAbstractionStarter]: Timeout [2021-06-05 05:09:49,113 INFO L202 PluginConnector]: Adding new model bakery-4.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 05:09:49 BasicIcfg [2021-06-05 05:09:49,113 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 05:09:49,113 INFO L168 Benchmark]: Toolchain (without parser) took 670818.84 ms. Allocated memory was 352.3 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 332.3 MB in the beginning and 10.2 GB in the end (delta: -9.9 GB). Peak memory consumption was 6.5 GB. Max. memory is 16.0 GB. [2021-06-05 05:09:49,114 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.16 ms. Allocated memory is still 352.3 MB. Free memory is still 333.6 MB. There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 05:09:49,118 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.53 ms. Allocated memory is still 352.3 MB. Free memory was 332.2 MB in the beginning and 330.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 05:09:49,128 INFO L168 Benchmark]: Boogie Preprocessor took 15.95 ms. Allocated memory is still 352.3 MB. Free memory was 330.6 MB in the beginning and 329.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. [2021-06-05 05:09:49,128 INFO L168 Benchmark]: RCFGBuilder took 319.98 ms. Allocated memory is still 352.3 MB. Free memory was 329.5 MB in the beginning and 312.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. [2021-06-05 05:09:49,128 INFO L168 Benchmark]: TraceAbstraction took 670452.11 ms. Allocated memory was 352.3 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 311.6 MB in the beginning and 10.2 GB in the end (delta: -9.9 GB). Peak memory consumption was 6.5 GB. Max. memory is 16.0 GB. [2021-06-05 05:09:49,129 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 0.16 ms. Allocated memory is still 352.3 MB. Free memory is still 333.6 MB. There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.53 ms. Allocated memory is still 352.3 MB. Free memory was 332.2 MB in the beginning and 330.6 MB in the end (delta: 1.5 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.95 ms. Allocated memory is still 352.3 MB. Free memory was 330.6 MB in the beginning and 329.6 MB in the end (delta: 1.1 MB). Peak memory consumption was 4.2 MB. Max. memory is 16.0 GB. * RCFGBuilder took 319.98 ms. Allocated memory is still 352.3 MB. Free memory was 329.5 MB in the beginning and 312.1 MB in the end (delta: 17.4 MB). Peak memory consumption was 16.8 MB. Max. memory is 16.0 GB. * TraceAbstraction took 670452.11 ms. Allocated memory was 352.3 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 311.6 MB in the beginning and 10.2 GB in the end (delta: -9.9 GB). Peak memory consumption was 6.5 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (261326 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 107]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (261326 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 109]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (261326 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 108]: Timeout (TraceAbstraction) Unable to prove that petrification did provide enough thread instances (tool internal message, not intended for end users) Cancelled while ReachableStatesComputation was computing reachable states (261326 states constructedinput type DoubleDeckerAutomaton). - TimeoutResultAtElement [Line: 116]: Timeout (TraceAbstraction) Unable to prove that assertion always holds Cancelled while ReachableStatesComputation was computing reachable states (261326 states constructedinput type DoubleDeckerAutomaton). - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 9 procedures, 154 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 670330.2ms, OverallIterations: 26, TraceHistogramMax: 1, EmptinessCheckTime: 20443.2ms, AutomataDifference: 107346.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 16558.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 5088 SDtfs, 14587 SDslu, 24205 SDs, 0 SdLazy, 16286 SolverSat, 3685 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9592.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 517 GetRequests, 49 SyntacticMatches, 19 SemanticMatches, 449 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1888 ImplicationChecksByTransitivity, 6840.8ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=297949occurred in iteration=25, InterpolantAutomatonStates: 419, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 520238.7ms AutomataMinimizationTime, 26 MinimizatonAttempts, 2894605 StatesRemovedByMinimization, 23 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 317.8ms SsaConstructionTime, 418.0ms SatisfiabilityAnalysisTime, 4692.4ms InterpolantComputationTime, 1950 NumberOfCodeBlocks, 1950 NumberOfCodeBlocksAsserted, 26 NumberOfCheckSat, 1924 ConstructedInterpolants, 0 QuantifiedInterpolants, 12293 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 26 InterpolantComputations, 26 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 RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown