/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-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-29289db [2021-06-05 17:09:59,534 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-05 17:09:59,537 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-05 17:09:59,577 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-05 17:09:59,597 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-06-05 17:09:59,599 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-06-05 17:09:59,600 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-06-05 17:09:59,601 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-06-05 17:09:59,604 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-06-05 17:09:59,605 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-06-05 17:09:59,607 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-06-05 17:09:59,612 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-06-05 17:09:59,613 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-06-05 17:09:59,614 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-06-05 17:09:59,615 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-06-05 17:09:59,617 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-06-05 17:09:59,622 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-06-05 17:09:59,635 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-Separate.epf [2021-06-05 17:09:59,671 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-05 17:09:59,671 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-05 17:09:59,671 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-05 17:09:59,672 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-05 17:09:59,674 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-05 17:09:59,674 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-05 17:09:59,674 INFO L138 SettingsManager]: * Use SBE=true [2021-06-05 17:09:59,674 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-05 17:09:59,674 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-05 17:09:59,675 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-05 17:09:59,675 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-05 17:09:59,675 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-05 17:09:59,676 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-05 17:09:59,676 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-05 17:09:59,676 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-05 17:09:59,676 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-05 17:09:59,676 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-05 17:09:59,676 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-05 17:09:59,676 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-05 17:09:59,676 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-05 17:09:59,677 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-05 17:09:59,677 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-05 17:09:59,677 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-05 17:09:59,677 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-05 17:09:59,677 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-05 17:09:59,677 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-05 17:09:59,677 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-05 17:09:59,677 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-05 17:09:59,678 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-05 17:09:59,678 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-05 17:09:59,678 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-05 17:09:59,678 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-06-05 17:09:59,678 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-05 17:09:59,981 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-05 17:09:59,998 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-05 17:10:00,000 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-05 17:10:00,001 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-05 17:10:00,003 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-05 17:10:00,003 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl [2021-06-05 17:10:00,004 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl' [2021-06-05 17:10:00,063 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-05 17:10:00,064 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-05 17:10:00,066 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-05 17:10:00,066 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-05 17:10:00,066 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-05 17:10:00,077 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:10:00" (1/1) ... [2021-06-05 17:10:00,085 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:10:00" (1/1) ... [2021-06-05 17:10:00,091 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-05 17:10:00,093 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-05 17:10:00,094 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-05 17:10:00,094 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-05 17:10:00,101 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:10:00" (1/1) ... [2021-06-05 17:10:00,102 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:10:00" (1/1) ... [2021-06-05 17:10:00,103 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:10:00" (1/1) ... [2021-06-05 17:10:00,103 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:10:00" (1/1) ... [2021-06-05 17:10:00,106 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:10:00" (1/1) ... [2021-06-05 17:10:00,107 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:10:00" (1/1) ... [2021-06-05 17:10:00,108 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:10:00" (1/1) ... [2021-06-05 17:10:00,109 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-05 17:10:00,109 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-05 17:10:00,110 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-05 17:10:00,111 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-05 17:10:00,113 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:10:00" (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 17:10:00,188 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-05 17:10:00,189 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-05 17:10:00,189 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-05 17:10:00,189 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-05 17:10:00,189 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-05 17:10:00,189 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-05 17:10:00,189 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-05 17:10:00,189 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-05 17:10:00,189 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-05 17:10:00,190 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 17:10:00,329 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-05 17:10:00,329 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-05 17:10:00,330 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 05:10:00 BoogieIcfgContainer [2021-06-05 17:10:00,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-05 17:10:00,332 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-05 17:10:00,332 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-05 17:10:00,334 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-05 17:10:00,335 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 05.06 05:10:00" (1/2) ... [2021-06-05 17:10:00,336 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@87e4af5 and model type easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 05.06 05:10:00, skipping insertion in model container [2021-06-05 17:10:00,336 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 05.06 05:10:00" (2/2) ... [2021-06-05 17:10:00,337 INFO L111 eAbstractionObserver]: Analyzing ICFG easy6.wvr.bpl [2021-06-05 17:10:00,341 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-05 17:10:00,342 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-05 17:10:00,342 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-05 17:10:00,343 INFO L510 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-05 17:10:00,372 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-05 17:10:00,391 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-05 17:10:00,417 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-05 17:10:00,417 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-05 17:10:00,417 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-05 17:10:00,417 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-05 17:10:00,417 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-05 17:10:00,417 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-05 17:10:00,417 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-05 17:10:00,418 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-06-05 17:10:00,434 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 35 transitions, 86 flow [2021-06-05 17:10:00,471 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 154 states, 152 states have (on average 1.7960526315789473) internal successors, (273), 153 states have internal predecessors, (273), 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 17:10:00,475 INFO L276 IsEmpty]: Start isEmpty. Operand has 154 states, 152 states have (on average 1.7960526315789473) internal successors, (273), 153 states have internal predecessors, (273), 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 17:10:00,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:00,488 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:00,488 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] [2021-06-05 17:10:00,489 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:00,493 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:00,493 INFO L82 PathProgramCache]: Analyzing trace with hash -1962782347, now seen corresponding path program 1 times [2021-06-05 17:10:00,500 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:00,501 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1401003348] [2021-06-05 17:10:00,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:00,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:00,760 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 17:10:00,760 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:00,761 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1401003348] [2021-06-05 17:10:00,761 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1401003348] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:00,761 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:00,761 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 17:10:00,762 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1383480742] [2021-06-05 17:10:00,765 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 17:10:00,765 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:00,785 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 17:10:00,786 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 17:10:00,791 INFO L87 Difference]: Start difference. First operand has 154 states, 152 states have (on average 1.7960526315789473) internal successors, (273), 153 states have internal predecessors, (273), 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 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 17:10:00,963 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:00,963 INFO L93 Difference]: Finished difference Result 202 states and 341 transitions. [2021-06-05 17:10:00,964 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 17:10:00,965 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:00,965 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:00,973 INFO L225 Difference]: With dead ends: 202 [2021-06-05 17:10:00,973 INFO L226 Difference]: Without dead ends: 154 [2021-06-05 17:10:00,974 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 158.4ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-05 17:10:00,994 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-06-05 17:10:01,032 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 121. [2021-06-05 17:10:01,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 121 states, 120 states have (on average 1.7416666666666667) internal successors, (209), 120 states have internal predecessors, (209), 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 17:10:01,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 209 transitions. [2021-06-05 17:10:01,039 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 209 transitions. Word has length 31 [2021-06-05 17:10:01,040 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:01,040 INFO L482 AbstractCegarLoop]: Abstraction has 121 states and 209 transitions. [2021-06-05 17:10:01,040 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 17:10:01,040 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 209 transitions. [2021-06-05 17:10:01,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:01,045 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:01,046 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] [2021-06-05 17:10:01,046 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-05 17:10:01,046 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:01,047 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:01,047 INFO L82 PathProgramCache]: Analyzing trace with hash -1150170667, now seen corresponding path program 2 times [2021-06-05 17:10:01,047 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:01,047 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1345460966] [2021-06-05 17:10:01,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:01,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:01,154 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 17:10:01,154 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:01,154 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1345460966] [2021-06-05 17:10:01,154 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1345460966] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:01,154 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:01,155 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 17:10:01,155 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2023767868] [2021-06-05 17:10:01,158 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 17:10:01,158 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:01,161 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 17:10:01,162 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-05 17:10:01,162 INFO L87 Difference]: Start difference. First operand 121 states and 209 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 17:10:01,304 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:01,304 INFO L93 Difference]: Finished difference Result 228 states and 387 transitions. [2021-06-05 17:10:01,304 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 17:10:01,304 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:01,305 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:01,308 INFO L225 Difference]: With dead ends: 228 [2021-06-05 17:10:01,308 INFO L226 Difference]: Without dead ends: 193 [2021-06-05 17:10:01,309 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 98.5ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-06-05 17:10:01,310 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-06-05 17:10:01,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 106. [2021-06-05 17:10:01,321 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 106 states, 105 states have (on average 1.7047619047619047) internal successors, (179), 105 states have internal predecessors, (179), 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 17:10:01,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 179 transitions. [2021-06-05 17:10:01,322 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 179 transitions. Word has length 31 [2021-06-05 17:10:01,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:01,322 INFO L482 AbstractCegarLoop]: Abstraction has 106 states and 179 transitions. [2021-06-05 17:10:01,322 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 17:10:01,322 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 179 transitions. [2021-06-05 17:10:01,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:01,323 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:01,323 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] [2021-06-05 17:10:01,324 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-05 17:10:01,324 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:01,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:01,324 INFO L82 PathProgramCache]: Analyzing trace with hash 628560125, now seen corresponding path program 3 times [2021-06-05 17:10:01,325 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:01,325 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1716429699] [2021-06-05 17:10:01,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:01,343 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:01,358 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 17:10:01,359 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:01,359 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1716429699] [2021-06-05 17:10:01,359 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1716429699] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:01,359 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:01,359 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 17:10:01,360 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [550178442] [2021-06-05 17:10:01,360 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 17:10:01,360 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:01,361 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 17:10:01,361 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 17:10:01,361 INFO L87 Difference]: Start difference. First operand 106 states and 179 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 17:10:01,366 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:01,366 INFO L93 Difference]: Finished difference Result 100 states and 167 transitions. [2021-06-05 17:10:01,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 17:10:01,367 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:01,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:01,367 INFO L225 Difference]: With dead ends: 100 [2021-06-05 17:10:01,367 INFO L226 Difference]: Without dead ends: 100 [2021-06-05 17:10:01,368 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.3ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 17:10:01,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-06-05 17:10:01,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2021-06-05 17:10:01,372 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 100 states, 99 states have (on average 1.6868686868686869) internal successors, (167), 99 states have internal predecessors, (167), 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 17:10:01,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 167 transitions. [2021-06-05 17:10:01,373 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 167 transitions. Word has length 31 [2021-06-05 17:10:01,373 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:01,373 INFO L482 AbstractCegarLoop]: Abstraction has 100 states and 167 transitions. [2021-06-05 17:10:01,373 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 17:10:01,373 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 167 transitions. [2021-06-05 17:10:01,374 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:01,374 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:01,374 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] [2021-06-05 17:10:01,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-05 17:10:01,374 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:01,375 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:01,375 INFO L82 PathProgramCache]: Analyzing trace with hash -88600699, now seen corresponding path program 4 times [2021-06-05 17:10:01,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:01,375 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1026483882] [2021-06-05 17:10:01,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:01,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:01,484 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 17:10:01,484 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:01,484 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1026483882] [2021-06-05 17:10:01,484 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1026483882] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:01,484 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:01,484 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-05 17:10:01,485 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1547109432] [2021-06-05 17:10:01,485 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 17:10:01,486 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:01,486 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 17:10:01,486 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-05 17:10:01,487 INFO L87 Difference]: Start difference. First operand 100 states and 167 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 17:10:01,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:01,573 INFO L93 Difference]: Finished difference Result 131 states and 210 transitions. [2021-06-05 17:10:01,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-05 17:10:01,574 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:01,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:01,575 INFO L225 Difference]: With dead ends: 131 [2021-06-05 17:10:01,575 INFO L226 Difference]: Without dead ends: 94 [2021-06-05 17:10:01,575 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 82.2ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-05 17:10:01,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-06-05 17:10:01,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 79. [2021-06-05 17:10:01,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 79 states, 78 states have (on average 1.6025641025641026) internal successors, (125), 78 states have internal predecessors, (125), 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 17:10:01,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 125 transitions. [2021-06-05 17:10:01,589 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 125 transitions. Word has length 31 [2021-06-05 17:10:01,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:01,589 INFO L482 AbstractCegarLoop]: Abstraction has 79 states and 125 transitions. [2021-06-05 17:10:01,590 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 6 states have internal predecessors, (31), 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 17:10:01,590 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 125 transitions. [2021-06-05 17:10:01,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:01,592 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:01,593 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] [2021-06-05 17:10:01,593 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-05 17:10:01,593 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:01,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:01,594 INFO L82 PathProgramCache]: Analyzing trace with hash 538045003, now seen corresponding path program 5 times [2021-06-05 17:10:01,594 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:01,594 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [807176395] [2021-06-05 17:10:01,594 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:01,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:01,685 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 17:10:01,685 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:01,685 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [807176395] [2021-06-05 17:10:01,686 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [807176395] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:01,686 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:01,693 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 17:10:01,694 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [678833851] [2021-06-05 17:10:01,694 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 17:10:01,696 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:01,697 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 17:10:01,697 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-05 17:10:01,697 INFO L87 Difference]: Start difference. First operand 79 states and 125 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:01,846 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:01,847 INFO L93 Difference]: Finished difference Result 214 states and 334 transitions. [2021-06-05 17:10:01,847 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 17:10:01,847 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:01,848 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:01,848 INFO L225 Difference]: With dead ends: 214 [2021-06-05 17:10:01,848 INFO L226 Difference]: Without dead ends: 208 [2021-06-05 17:10:01,849 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 126.1ms TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2021-06-05 17:10:01,849 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-06-05 17:10:01,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 90. [2021-06-05 17:10:01,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 90 states, 89 states have (on average 1.595505617977528) internal successors, (142), 89 states have internal predecessors, (142), 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 17:10:01,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 142 transitions. [2021-06-05 17:10:01,856 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 142 transitions. Word has length 31 [2021-06-05 17:10:01,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:01,857 INFO L482 AbstractCegarLoop]: Abstraction has 90 states and 142 transitions. [2021-06-05 17:10:01,857 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:01,857 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 142 transitions. [2021-06-05 17:10:01,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:01,858 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:01,858 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] [2021-06-05 17:10:01,858 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-05 17:10:01,858 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:01,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:01,859 INFO L82 PathProgramCache]: Analyzing trace with hash 593498699, now seen corresponding path program 6 times [2021-06-05 17:10:01,859 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:01,859 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2078152739] [2021-06-05 17:10:01,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:01,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:01,970 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 17:10:01,970 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:01,971 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2078152739] [2021-06-05 17:10:01,971 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2078152739] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:01,971 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:01,972 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 17:10:01,972 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768889654] [2021-06-05 17:10:01,973 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 17:10:01,973 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:01,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 17:10:01,977 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-05 17:10:01,977 INFO L87 Difference]: Start difference. First operand 90 states and 142 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:02,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:02,114 INFO L93 Difference]: Finished difference Result 201 states and 310 transitions. [2021-06-05 17:10:02,114 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 17:10:02,115 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:02,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:02,116 INFO L225 Difference]: With dead ends: 201 [2021-06-05 17:10:02,116 INFO L226 Difference]: Without dead ends: 187 [2021-06-05 17:10:02,117 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 119.0ms TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2021-06-05 17:10:02,117 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-06-05 17:10:02,122 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 80. [2021-06-05 17:10:02,122 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 80 states, 79 states have (on average 1.5949367088607596) internal successors, (126), 79 states have internal predecessors, (126), 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 17:10:02,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 126 transitions. [2021-06-05 17:10:02,123 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 126 transitions. Word has length 31 [2021-06-05 17:10:02,123 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:02,123 INFO L482 AbstractCegarLoop]: Abstraction has 80 states and 126 transitions. [2021-06-05 17:10:02,123 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:02,123 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 126 transitions. [2021-06-05 17:10:02,123 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:02,124 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:02,124 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] [2021-06-05 17:10:02,124 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-05 17:10:02,124 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:02,124 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:02,125 INFO L82 PathProgramCache]: Analyzing trace with hash 1972958505, now seen corresponding path program 7 times [2021-06-05 17:10:02,125 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:02,125 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [153129246] [2021-06-05 17:10:02,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:02,129 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:02,205 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 17:10:02,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:02,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [153129246] [2021-06-05 17:10:02,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [153129246] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:02,207 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:02,207 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 17:10:02,207 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129339264] [2021-06-05 17:10:02,207 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 17:10:02,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:02,208 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 17:10:02,208 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-05 17:10:02,208 INFO L87 Difference]: Start difference. First operand 80 states and 126 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:02,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:02,372 INFO L93 Difference]: Finished difference Result 200 states and 309 transitions. [2021-06-05 17:10:02,372 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 17:10:02,373 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:02,373 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:02,374 INFO L225 Difference]: With dead ends: 200 [2021-06-05 17:10:02,374 INFO L226 Difference]: Without dead ends: 194 [2021-06-05 17:10:02,374 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 136.0ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-06-05 17:10:02,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-06-05 17:10:02,377 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 91. [2021-06-05 17:10:02,377 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 91 states, 90 states have (on average 1.6) internal successors, (144), 90 states have internal predecessors, (144), 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 17:10:02,377 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 144 transitions. [2021-06-05 17:10:02,377 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 144 transitions. Word has length 31 [2021-06-05 17:10:02,378 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:02,378 INFO L482 AbstractCegarLoop]: Abstraction has 91 states and 144 transitions. [2021-06-05 17:10:02,378 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:02,378 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 144 transitions. [2021-06-05 17:10:02,378 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:02,378 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:02,378 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] [2021-06-05 17:10:02,378 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-05 17:10:02,379 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:02,379 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:02,379 INFO L82 PathProgramCache]: Analyzing trace with hash 2028412201, now seen corresponding path program 8 times [2021-06-05 17:10:02,379 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:02,379 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [803967685] [2021-06-05 17:10:02,379 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:02,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:02,463 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 17:10:02,463 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:02,463 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [803967685] [2021-06-05 17:10:02,463 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [803967685] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:02,463 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:02,464 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 17:10:02,464 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [354411938] [2021-06-05 17:10:02,464 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 17:10:02,464 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:02,465 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 17:10:02,468 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-05 17:10:02,468 INFO L87 Difference]: Start difference. First operand 91 states and 144 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:02,602 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:02,602 INFO L93 Difference]: Finished difference Result 187 states and 285 transitions. [2021-06-05 17:10:02,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-05 17:10:02,603 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:02,603 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:02,604 INFO L225 Difference]: With dead ends: 187 [2021-06-05 17:10:02,604 INFO L226 Difference]: Without dead ends: 175 [2021-06-05 17:10:02,605 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 125.9ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-06-05 17:10:02,607 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-06-05 17:10:02,609 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 83. [2021-06-05 17:10:02,609 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.5731707317073171) internal successors, (129), 82 states have internal predecessors, (129), 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 17:10:02,610 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 129 transitions. [2021-06-05 17:10:02,610 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 129 transitions. Word has length 31 [2021-06-05 17:10:02,610 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:02,610 INFO L482 AbstractCegarLoop]: Abstraction has 83 states and 129 transitions. [2021-06-05 17:10:02,610 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:02,610 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 129 transitions. [2021-06-05 17:10:02,611 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:02,611 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:02,611 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] [2021-06-05 17:10:02,611 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-05 17:10:02,611 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:02,612 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:02,612 INFO L82 PathProgramCache]: Analyzing trace with hash 440382761, now seen corresponding path program 9 times [2021-06-05 17:10:02,612 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:02,612 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1219396209] [2021-06-05 17:10:02,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:02,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:02,624 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 17:10:02,624 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:02,624 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1219396209] [2021-06-05 17:10:02,624 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1219396209] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:02,624 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:02,625 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-05 17:10:02,625 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [199366969] [2021-06-05 17:10:02,625 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-05 17:10:02,625 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:02,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-05 17:10:02,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 17:10:02,626 INFO L87 Difference]: Start difference. First operand 83 states and 129 transitions. Second operand has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 17:10:02,629 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:02,630 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2021-06-05 17:10:02,630 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-05 17:10:02,630 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:02,630 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:02,631 INFO L225 Difference]: With dead ends: 82 [2021-06-05 17:10:02,631 INFO L226 Difference]: Without dead ends: 76 [2021-06-05 17:10:02,631 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.0ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-05 17:10:02,632 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-06-05 17:10:02,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-06-05 17:10:02,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 76 states, 75 states have (on average 1.5466666666666666) internal successors, (116), 75 states have internal predecessors, (116), 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 17:10:02,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 116 transitions. [2021-06-05 17:10:02,634 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 116 transitions. Word has length 31 [2021-06-05 17:10:02,634 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:02,634 INFO L482 AbstractCegarLoop]: Abstraction has 76 states and 116 transitions. [2021-06-05 17:10:02,634 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 3 states, 3 states have (on average 10.333333333333334) internal successors, (31), 3 states have internal predecessors, (31), 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 17:10:02,634 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 116 transitions. [2021-06-05 17:10:02,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:02,635 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:02,635 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] [2021-06-05 17:10:02,635 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-05 17:10:02,635 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:02,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:02,636 INFO L82 PathProgramCache]: Analyzing trace with hash 205229245, now seen corresponding path program 10 times [2021-06-05 17:10:02,636 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:02,636 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1852827431] [2021-06-05 17:10:02,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:02,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:02,715 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 17:10:02,715 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:02,715 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1852827431] [2021-06-05 17:10:02,715 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1852827431] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:02,716 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:02,716 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 17:10:02,716 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1073676360] [2021-06-05 17:10:02,716 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 17:10:02,716 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:02,717 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 17:10:02,717 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-05 17:10:02,717 INFO L87 Difference]: Start difference. First operand 76 states and 116 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:02,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:02,823 INFO L93 Difference]: Finished difference Result 98 states and 150 transitions. [2021-06-05 17:10:02,824 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 17:10:02,824 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:02,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:02,825 INFO L225 Difference]: With dead ends: 98 [2021-06-05 17:10:02,825 INFO L226 Difference]: Without dead ends: 94 [2021-06-05 17:10:02,825 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 117.7ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-06-05 17:10:02,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-06-05 17:10:02,827 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 83. [2021-06-05 17:10:02,828 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.5365853658536586) internal successors, (126), 82 states have internal predecessors, (126), 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 17:10:02,828 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 126 transitions. [2021-06-05 17:10:02,828 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 126 transitions. Word has length 31 [2021-06-05 17:10:02,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:02,828 INFO L482 AbstractCegarLoop]: Abstraction has 83 states and 126 transitions. [2021-06-05 17:10:02,829 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:02,829 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 126 transitions. [2021-06-05 17:10:02,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:02,829 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:02,829 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] [2021-06-05 17:10:02,829 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-05 17:10:02,830 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:02,830 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:02,830 INFO L82 PathProgramCache]: Analyzing trace with hash 260682941, now seen corresponding path program 11 times [2021-06-05 17:10:02,830 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:02,830 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [925349618] [2021-06-05 17:10:02,830 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:02,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:02,911 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 17:10:02,911 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:02,912 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [925349618] [2021-06-05 17:10:02,912 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [925349618] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:02,912 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:02,912 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 17:10:02,912 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [305254210] [2021-06-05 17:10:02,914 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 17:10:02,914 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:02,915 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 17:10:02,915 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-05 17:10:02,915 INFO L87 Difference]: Start difference. First operand 83 states and 126 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:03,028 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:03,029 INFO L93 Difference]: Finished difference Result 87 states and 130 transitions. [2021-06-05 17:10:03,029 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 17:10:03,029 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:03,030 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:03,030 INFO L225 Difference]: With dead ends: 87 [2021-06-05 17:10:03,030 INFO L226 Difference]: Without dead ends: 74 [2021-06-05 17:10:03,031 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 134.7ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-06-05 17:10:03,032 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-06-05 17:10:03,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-06-05 17:10:03,033 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 74 states, 73 states have (on average 1.5342465753424657) internal successors, (112), 73 states have internal predecessors, (112), 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 17:10:03,034 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 112 transitions. [2021-06-05 17:10:03,034 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 112 transitions. Word has length 31 [2021-06-05 17:10:03,034 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:03,034 INFO L482 AbstractCegarLoop]: Abstraction has 74 states and 112 transitions. [2021-06-05 17:10:03,034 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:03,035 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 112 transitions. [2021-06-05 17:10:03,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:03,035 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:03,035 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] [2021-06-05 17:10:03,035 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-05 17:10:03,035 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:03,036 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:03,036 INFO L82 PathProgramCache]: Analyzing trace with hash 1640142747, now seen corresponding path program 12 times [2021-06-05 17:10:03,036 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:03,036 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1143765510] [2021-06-05 17:10:03,036 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:03,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:03,127 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 17:10:03,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:03,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1143765510] [2021-06-05 17:10:03,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1143765510] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:03,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:03,128 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 17:10:03,128 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1272095905] [2021-06-05 17:10:03,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 17:10:03,129 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:03,129 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 17:10:03,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 17:10:03,129 INFO L87 Difference]: Start difference. First operand 74 states and 112 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:03,247 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:03,248 INFO L93 Difference]: Finished difference Result 104 states and 159 transitions. [2021-06-05 17:10:03,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 17:10:03,248 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:03,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:03,249 INFO L225 Difference]: With dead ends: 104 [2021-06-05 17:10:03,249 INFO L226 Difference]: Without dead ends: 100 [2021-06-05 17:10:03,249 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 132.0ms TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-06-05 17:10:03,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-06-05 17:10:03,251 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 83. [2021-06-05 17:10:03,251 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 83 states, 82 states have (on average 1.524390243902439) internal successors, (125), 82 states have internal predecessors, (125), 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 17:10:03,252 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 125 transitions. [2021-06-05 17:10:03,252 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 125 transitions. Word has length 31 [2021-06-05 17:10:03,252 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:03,252 INFO L482 AbstractCegarLoop]: Abstraction has 83 states and 125 transitions. [2021-06-05 17:10:03,252 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:03,252 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 125 transitions. [2021-06-05 17:10:03,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:03,253 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:03,253 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] [2021-06-05 17:10:03,253 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-05 17:10:03,253 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:03,253 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:03,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1695596443, now seen corresponding path program 13 times [2021-06-05 17:10:03,254 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:03,254 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [774031718] [2021-06-05 17:10:03,254 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:03,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:03,320 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 17:10:03,320 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:03,320 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [774031718] [2021-06-05 17:10:03,320 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [774031718] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:03,321 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:03,321 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-05 17:10:03,321 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1704345634] [2021-06-05 17:10:03,321 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-05 17:10:03,321 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:03,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-05 17:10:03,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-05 17:10:03,322 INFO L87 Difference]: Start difference. First operand 83 states and 125 transitions. Second operand has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:03,419 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:03,419 INFO L93 Difference]: Finished difference Result 87 states and 129 transitions. [2021-06-05 17:10:03,419 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-05 17:10:03,419 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:03,420 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:03,420 INFO L225 Difference]: With dead ends: 87 [2021-06-05 17:10:03,420 INFO L226 Difference]: Without dead ends: 73 [2021-06-05 17:10:03,420 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 106.4ms TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-06-05 17:10:03,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-06-05 17:10:03,422 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-06-05 17:10:03,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 73 states, 72 states have (on average 1.5277777777777777) internal successors, (110), 72 states have internal predecessors, (110), 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 17:10:03,422 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 110 transitions. [2021-06-05 17:10:03,422 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 110 transitions. Word has length 31 [2021-06-05 17:10:03,422 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:03,423 INFO L482 AbstractCegarLoop]: Abstraction has 73 states and 110 transitions. [2021-06-05 17:10:03,423 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 3.4444444444444446) internal successors, (31), 9 states have internal predecessors, (31), 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 17:10:03,423 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 110 transitions. [2021-06-05 17:10:03,423 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-05 17:10:03,423 INFO L513 BasicCegarLoop]: Found error trace [2021-06-05 17:10:03,423 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] [2021-06-05 17:10:03,423 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-05 17:10:03,423 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-05 17:10:03,424 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-05 17:10:03,424 INFO L82 PathProgramCache]: Analyzing trace with hash -127865327, now seen corresponding path program 14 times [2021-06-05 17:10:03,424 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-05 17:10:03,424 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [584066795] [2021-06-05 17:10:03,424 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-05 17:10:03,428 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-05 17:10:03,469 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 17:10:03,469 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-05 17:10:03,469 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [584066795] [2021-06-05 17:10:03,469 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [584066795] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-05 17:10:03,469 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-05 17:10:03,470 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-05 17:10:03,470 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1872726063] [2021-06-05 17:10:03,470 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-05 17:10:03,470 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-05 17:10:03,470 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-05 17:10:03,470 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-05 17:10:03,471 INFO L87 Difference]: Start difference. First operand 73 states and 110 transitions. Second operand has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 17:10:03,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-05 17:10:03,511 INFO L93 Difference]: Finished difference Result 43 states and 62 transitions. [2021-06-05 17:10:03,511 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-05 17:10:03,511 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 31 [2021-06-05 17:10:03,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-05 17:10:03,512 INFO L225 Difference]: With dead ends: 43 [2021-06-05 17:10:03,512 INFO L226 Difference]: Without dead ends: 0 [2021-06-05 17:10:03,513 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 52.3ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-06-05 17:10:03,513 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-05 17:10:03,513 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-05 17:10:03,513 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-06-05 17:10:03,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-05 17:10:03,513 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-06-05 17:10:03,513 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-05 17:10:03,513 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-05 17:10:03,514 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 4.428571428571429) internal successors, (31), 7 states have internal predecessors, (31), 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 17:10:03,514 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-05 17:10:03,514 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-05 17:10:03,515 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-05 17:10:03,516 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-05 17:10:03,523 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 05.06 05:10:03 BasicIcfg [2021-06-05 17:10:03,523 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-05 17:10:03,524 INFO L168 Benchmark]: Toolchain (without parser) took 3459.87 ms. Allocated memory is still 337.6 MB. Free memory was 316.8 MB in the beginning and 217.2 MB in the end (delta: 99.6 MB). Peak memory consumption was 100.0 MB. Max. memory is 16.0 GB. [2021-06-05 17:10:03,524 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.13 ms. Allocated memory is still 337.6 MB. Free memory was 317.9 MB in the beginning and 317.8 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 17:10:03,528 INFO L168 Benchmark]: Boogie Procedure Inliner took 26.26 ms. Allocated memory is still 337.6 MB. Free memory was 316.7 MB in the beginning and 315.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. [2021-06-05 17:10:03,528 INFO L168 Benchmark]: Boogie Preprocessor took 15.51 ms. Allocated memory is still 337.6 MB. Free memory was 315.3 MB in the beginning and 314.4 MB in the end (delta: 921.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-06-05 17:10:03,528 INFO L168 Benchmark]: RCFGBuilder took 221.20 ms. Allocated memory is still 337.6 MB. Free memory was 314.4 MB in the beginning and 302.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. [2021-06-05 17:10:03,529 INFO L168 Benchmark]: TraceAbstraction took 3191.44 ms. Allocated memory is still 337.6 MB. Free memory was 302.2 MB in the beginning and 217.2 MB in the end (delta: 85.0 MB). Peak memory consumption was 85.3 MB. Max. memory is 16.0 GB. [2021-06-05 17:10:03,535 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 0.13 ms. Allocated memory is still 337.6 MB. Free memory was 317.9 MB in the beginning and 317.8 MB in the end (delta: 70.3 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 26.26 ms. Allocated memory is still 337.6 MB. Free memory was 316.7 MB in the beginning and 315.3 MB in the end (delta: 1.4 MB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.51 ms. Allocated memory is still 337.6 MB. Free memory was 315.3 MB in the beginning and 314.4 MB in the end (delta: 921.3 kB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 221.20 ms. Allocated memory is still 337.6 MB. Free memory was 314.4 MB in the beginning and 302.7 MB in the end (delta: 11.7 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 3191.44 ms. Allocated memory is still 337.6 MB. Free memory was 302.2 MB in the beginning and 217.2 MB in the end (delta: 85.0 MB). Peak memory consumption was 85.3 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 60]: assertion always holds For all program executions holds that assertion always holds at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 5 procedures, 60 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3100.4ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 29.0ms, AutomataDifference: 1552.9ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 53.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 540 SDtfs, 1474 SDslu, 1453 SDs, 0 SdLazy, 531 SolverSat, 185 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 416.9ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1394.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=154occurred in iteration=0, InterpolantAutomatonStates: 114, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 116.2ms AutomataMinimizationTime, 14 MinimizatonAttempts, 583 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 25.0ms SsaConstructionTime, 109.3ms SatisfiabilityAnalysisTime, 1035.0ms InterpolantComputationTime, 434 NumberOfCodeBlocks, 434 NumberOfCodeBlocksAsserted, 14 NumberOfCheckSat, 420 ConstructedInterpolants, 0 QuantifiedInterpolants, 1626 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 14 InterpolantComputations, 14 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold RESULT: Ultimate proved your program to be correct! Received shutdown request...