/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-9bbddad6b14272d9691b7fb6f1c011d15ab18596-9bbddad [2021-06-12 22:35:25,334 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-06-12 22:35:25,336 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-06-12 22:35:25,363 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-06-12 22:35:25,431 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2021-06-12 22:35:25,469 INFO L113 SettingsManager]: Loading preferences was successful [2021-06-12 22:35:25,469 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-06-12 22:35:25,470 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-06-12 22:35:25,470 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-06-12 22:35:25,472 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-06-12 22:35:25,472 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-06-12 22:35:25,472 INFO L138 SettingsManager]: * Use SBE=true [2021-06-12 22:35:25,473 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-06-12 22:35:25,473 INFO L138 SettingsManager]: * sizeof long=4 [2021-06-12 22:35:25,473 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-06-12 22:35:25,474 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-06-12 22:35:25,474 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-06-12 22:35:25,474 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-06-12 22:35:25,474 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-06-12 22:35:25,474 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-06-12 22:35:25,474 INFO L138 SettingsManager]: * sizeof long double=12 [2021-06-12 22:35:25,474 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-06-12 22:35:25,475 INFO L138 SettingsManager]: * Use constant arrays=true [2021-06-12 22:35:25,475 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-06-12 22:35:25,475 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-06-12 22:35:25,475 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-06-12 22:35:25,475 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-06-12 22:35:25,476 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-06-12 22:35:25,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-06-12 22:35:25,476 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-06-12 22:35:25,476 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-06-12 22:35:25,476 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-06-12 22:35:25,476 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-06-12 22:35:25,476 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-06-12 22:35:25,476 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-06-12 22:35:25,477 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-06-12 22:35:25,477 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-06-12 22:35:25,792 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-06-12 22:35:25,808 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-06-12 22:35:25,810 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-06-12 22:35:25,811 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-06-12 22:35:25,812 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-06-12 22:35:25,813 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl [2021-06-12 22:35:25,813 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/weaver-benchmarks/generated/test/easy6.wvr.bpl' [2021-06-12 22:35:25,840 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-06-12 22:35:25,841 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-06-12 22:35:25,842 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-06-12 22:35:25,842 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-06-12 22:35:25,842 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-06-12 22:35:25,853 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.06 10:35:25" (1/1) ... [2021-06-12 22:35:25,859 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.06 10:35:25" (1/1) ... [2021-06-12 22:35:25,865 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-06-12 22:35:25,869 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-06-12 22:35:25,869 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-06-12 22:35:25,869 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-06-12 22:35:25,874 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.06 10:35:25" (1/1) ... [2021-06-12 22:35:25,874 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.06 10:35:25" (1/1) ... [2021-06-12 22:35:25,875 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.06 10:35:25" (1/1) ... [2021-06-12 22:35:25,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.06 10:35:25" (1/1) ... [2021-06-12 22:35:25,877 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.06 10:35:25" (1/1) ... [2021-06-12 22:35:25,877 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.06 10:35:25" (1/1) ... [2021-06-12 22:35:25,878 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.06 10:35:25" (1/1) ... [2021-06-12 22:35:25,878 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-06-12 22:35:25,879 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-06-12 22:35:25,879 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-06-12 22:35:25,879 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-06-12 22:35:25,881 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.06 10:35:25" (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 [2021-06-12 22:35:25,939 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread1 given in one single declaration [2021-06-12 22:35:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2021-06-12 22:35:25,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2021-06-12 22:35:25,940 INFO L124 BoogieDeclarations]: Specification and implementation of procedure thread2 given in one single declaration [2021-06-12 22:35:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2021-06-12 22:35:25,940 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2021-06-12 22:35:25,940 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-06-12 22:35:25,940 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-06-12 22:35:25,941 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-06-12 22:35:25,941 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-06-12 22:35:26,105 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-06-12 22:35:26,105 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-06-12 22:35:26,107 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 10:35:26 BoogieIcfgContainer [2021-06-12 22:35:26,107 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-06-12 22:35:26,108 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-06-12 22:35:26,109 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-06-12 22:35:26,111 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-06-12 22:35:26,112 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 12.06 10:35:25" (1/2) ... [2021-06-12 22:35:26,112 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@78288e99 and model type easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.06 10:35:26, skipping insertion in model container [2021-06-12 22:35:26,113 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.06 10:35:26" (2/2) ... [2021-06-12 22:35:26,114 INFO L111 eAbstractionObserver]: Analyzing ICFG easy6.wvr.bpl [2021-06-12 22:35:26,118 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-06-12 22:35:26,119 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-06-12 22:35:26,119 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-06-12 22:35:26,120 INFO L471 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-06-12 22:35:26,147 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-06-12 22:35:26,165 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-06-12 22:35:26,181 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-06-12 22:35:26,181 INFO L379 AbstractCegarLoop]: Hoare is false [2021-06-12 22:35:26,181 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-06-12 22:35:26,182 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-06-12 22:35:26,182 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-06-12 22:35:26,182 INFO L383 AbstractCegarLoop]: Difference is false [2021-06-12 22:35:26,182 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-06-12 22:35:26,182 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == ULTIMATE.start======== [2021-06-12 22:35:26,190 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 42 places, 35 transitions, 86 flow [2021-06-12 22:35:26,211 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) [2021-06-12 22:35:26,213 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) [2021-06-12 22:35:26,221 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:26,221 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:26,222 INFO L472 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] [2021-06-12 22:35:26,222 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:26,226 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:26,226 INFO L82 PathProgramCache]: Analyzing trace with hash -914189483, now seen corresponding path program 1 times [2021-06-12 22:35:26,233 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:26,233 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [745875483] [2021-06-12 22:35:26,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:26,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:26,588 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:26,589 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:26,589 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [745875483] [2021-06-12 22:35:26,589 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [745875483] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:26,590 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:26,590 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 22:35:26,590 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [934674386] [2021-06-12 22:35:26,594 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 22:35:26,594 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:26,613 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 22:35:26,615 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 22:35:26,619 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) [2021-06-12 22:35:26,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:26,771 INFO L93 Difference]: Finished difference Result 202 states and 341 transitions. [2021-06-12 22:35:26,771 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-12 22:35:26,773 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 [2021-06-12 22:35:26,773 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:26,786 INFO L225 Difference]: With dead ends: 202 [2021-06-12 22:35:26,787 INFO L226 Difference]: Without dead ends: 154 [2021-06-12 22:35:26,788 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 148.9ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-12 22:35:26,806 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 154 states. [2021-06-12 22:35:26,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 154 to 121. [2021-06-12 22:35:26,849 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) [2021-06-12 22:35:26,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 121 states to 121 states and 209 transitions. [2021-06-12 22:35:26,853 INFO L78 Accepts]: Start accepts. Automaton has 121 states and 209 transitions. Word has length 31 [2021-06-12 22:35:26,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:26,854 INFO L482 AbstractCegarLoop]: Abstraction has 121 states and 209 transitions. [2021-06-12 22:35:26,854 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) [2021-06-12 22:35:26,854 INFO L276 IsEmpty]: Start isEmpty. Operand 121 states and 209 transitions. [2021-06-12 22:35:26,859 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:26,859 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:26,860 INFO L472 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] [2021-06-12 22:35:26,860 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-06-12 22:35:26,860 INFO L430 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:26,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:26,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1150170667, now seen corresponding path program 2 times [2021-06-12 22:35:26,863 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:26,864 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [840816] [2021-06-12 22:35:26,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:26,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:26,952 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:26,952 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [840816] [2021-06-12 22:35:26,952 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [840816] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:26,952 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:26,953 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 22:35:26,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511540180] [2021-06-12 22:35:26,955 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 22:35:26,955 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:26,957 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 22:35:26,957 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-12 22:35:26,958 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) [2021-06-12 22:35:27,069 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:27,070 INFO L93 Difference]: Finished difference Result 228 states and 387 transitions. [2021-06-12 22:35:27,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 22:35:27,070 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 [2021-06-12 22:35:27,070 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:27,074 INFO L225 Difference]: With dead ends: 228 [2021-06-12 22:35:27,074 INFO L226 Difference]: Without dead ends: 193 [2021-06-12 22:35:27,075 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 70.3ms TimeCoverageRelationStatistics Valid=49, Invalid=83, Unknown=0, NotChecked=0, Total=132 [2021-06-12 22:35:27,076 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 193 states. [2021-06-12 22:35:27,090 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 193 to 106. [2021-06-12 22:35:27,090 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) [2021-06-12 22:35:27,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 106 states to 106 states and 179 transitions. [2021-06-12 22:35:27,091 INFO L78 Accepts]: Start accepts. Automaton has 106 states and 179 transitions. Word has length 31 [2021-06-12 22:35:27,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:27,092 INFO L482 AbstractCegarLoop]: Abstraction has 106 states and 179 transitions. [2021-06-12 22:35:27,092 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) [2021-06-12 22:35:27,092 INFO L276 IsEmpty]: Start isEmpty. Operand 106 states and 179 transitions. [2021-06-12 22:35:27,093 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:27,093 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:27,093 INFO L472 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] [2021-06-12 22:35:27,093 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-06-12 22:35:27,094 INFO L430 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:27,094 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:27,095 INFO L82 PathProgramCache]: Analyzing trace with hash 628560125, now seen corresponding path program 3 times [2021-06-12 22:35:27,095 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:27,096 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [217019157] [2021-06-12 22:35:27,096 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:27,112 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:27,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:27,128 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:27,128 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [217019157] [2021-06-12 22:35:27,128 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [217019157] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:27,128 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:27,129 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-12 22:35:27,129 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [197323918] [2021-06-12 22:35:27,129 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-12 22:35:27,130 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:27,132 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-12 22:35:27,133 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-12 22:35:27,133 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) [2021-06-12 22:35:27,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:27,138 INFO L93 Difference]: Finished difference Result 100 states and 167 transitions. [2021-06-12 22:35:27,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-12 22:35:27,139 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 [2021-06-12 22:35:27,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:27,140 INFO L225 Difference]: With dead ends: 100 [2021-06-12 22:35:27,140 INFO L226 Difference]: Without dead ends: 100 [2021-06-12 22:35:27,141 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.5ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-12 22:35:27,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-06-12 22:35:27,156 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 100. [2021-06-12 22:35:27,156 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) [2021-06-12 22:35:27,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 167 transitions. [2021-06-12 22:35:27,157 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 167 transitions. Word has length 31 [2021-06-12 22:35:27,157 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:27,157 INFO L482 AbstractCegarLoop]: Abstraction has 100 states and 167 transitions. [2021-06-12 22:35:27,158 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) [2021-06-12 22:35:27,158 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 167 transitions. [2021-06-12 22:35:27,158 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:27,158 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:27,158 INFO L472 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] [2021-06-12 22:35:27,159 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-06-12 22:35:27,159 INFO L430 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:27,159 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:27,159 INFO L82 PathProgramCache]: Analyzing trace with hash -88600699, now seen corresponding path program 4 times [2021-06-12 22:35:27,159 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:27,160 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2144437858] [2021-06-12 22:35:27,160 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:27,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:27,276 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:27,276 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:27,277 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2144437858] [2021-06-12 22:35:27,277 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2144437858] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:27,277 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:27,277 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2021-06-12 22:35:27,277 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [504515671] [2021-06-12 22:35:27,278 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 22:35:27,278 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:27,279 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 22:35:27,279 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2021-06-12 22:35:27,280 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) [2021-06-12 22:35:27,363 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:27,364 INFO L93 Difference]: Finished difference Result 131 states and 210 transitions. [2021-06-12 22:35:27,364 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-06-12 22:35:27,364 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 [2021-06-12 22:35:27,365 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:27,365 INFO L225 Difference]: With dead ends: 131 [2021-06-12 22:35:27,365 INFO L226 Difference]: Without dead ends: 94 [2021-06-12 22:35:27,366 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 84.5ms TimeCoverageRelationStatistics Valid=30, Invalid=80, Unknown=0, NotChecked=0, Total=110 [2021-06-12 22:35:27,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-06-12 22:35:27,371 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 79. [2021-06-12 22:35:27,372 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) [2021-06-12 22:35:27,372 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 79 states to 79 states and 125 transitions. [2021-06-12 22:35:27,372 INFO L78 Accepts]: Start accepts. Automaton has 79 states and 125 transitions. Word has length 31 [2021-06-12 22:35:27,372 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:27,373 INFO L482 AbstractCegarLoop]: Abstraction has 79 states and 125 transitions. [2021-06-12 22:35:27,373 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) [2021-06-12 22:35:27,373 INFO L276 IsEmpty]: Start isEmpty. Operand 79 states and 125 transitions. [2021-06-12 22:35:27,373 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:27,374 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:27,374 INFO L472 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] [2021-06-12 22:35:27,374 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-06-12 22:35:27,374 INFO L430 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:27,374 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:27,375 INFO L82 PathProgramCache]: Analyzing trace with hash 538045003, now seen corresponding path program 5 times [2021-06-12 22:35:27,375 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:27,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1611702796] [2021-06-12 22:35:27,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:27,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:27,502 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:27,502 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:27,502 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1611702796] [2021-06-12 22:35:27,502 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1611702796] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:27,503 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:27,503 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-12 22:35:27,503 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [650648795] [2021-06-12 22:35:27,503 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-12 22:35:27,503 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:27,505 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-12 22:35:27,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-12 22:35:27,505 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) [2021-06-12 22:35:27,648 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:27,649 INFO L93 Difference]: Finished difference Result 214 states and 334 transitions. [2021-06-12 22:35:27,649 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 22:35:27,649 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 [2021-06-12 22:35:27,650 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:27,650 INFO L225 Difference]: With dead ends: 214 [2021-06-12 22:35:27,651 INFO L226 Difference]: Without dead ends: 208 [2021-06-12 22:35:27,651 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 132.5ms TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2021-06-12 22:35:27,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 208 states. [2021-06-12 22:35:27,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 208 to 90. [2021-06-12 22:35:27,655 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) [2021-06-12 22:35:27,656 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 90 states to 90 states and 142 transitions. [2021-06-12 22:35:27,656 INFO L78 Accepts]: Start accepts. Automaton has 90 states and 142 transitions. Word has length 31 [2021-06-12 22:35:27,657 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:27,657 INFO L482 AbstractCegarLoop]: Abstraction has 90 states and 142 transitions. [2021-06-12 22:35:27,657 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) [2021-06-12 22:35:27,658 INFO L276 IsEmpty]: Start isEmpty. Operand 90 states and 142 transitions. [2021-06-12 22:35:27,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:27,658 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:27,659 INFO L472 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] [2021-06-12 22:35:27,659 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-06-12 22:35:27,659 INFO L430 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:27,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:27,659 INFO L82 PathProgramCache]: Analyzing trace with hash 593498699, now seen corresponding path program 6 times [2021-06-12 22:35:27,660 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:27,660 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [414188091] [2021-06-12 22:35:27,660 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:27,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:27,758 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:27,759 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:27,759 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [414188091] [2021-06-12 22:35:27,759 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [414188091] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:27,759 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:27,759 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-12 22:35:27,759 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [277646566] [2021-06-12 22:35:27,760 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-12 22:35:27,760 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:27,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-12 22:35:27,761 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=49, Unknown=0, NotChecked=0, Total=72 [2021-06-12 22:35:27,761 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) [2021-06-12 22:35:27,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:27,894 INFO L93 Difference]: Finished difference Result 201 states and 310 transitions. [2021-06-12 22:35:27,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 22:35:27,895 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 [2021-06-12 22:35:27,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:27,896 INFO L225 Difference]: With dead ends: 201 [2021-06-12 22:35:27,896 INFO L226 Difference]: Without dead ends: 187 [2021-06-12 22:35:27,897 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 114.8ms TimeCoverageRelationStatistics Valid=68, Invalid=114, Unknown=0, NotChecked=0, Total=182 [2021-06-12 22:35:27,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2021-06-12 22:35:27,899 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 80. [2021-06-12 22:35:27,899 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) [2021-06-12 22:35:27,899 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 80 states to 80 states and 126 transitions. [2021-06-12 22:35:27,899 INFO L78 Accepts]: Start accepts. Automaton has 80 states and 126 transitions. Word has length 31 [2021-06-12 22:35:27,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:27,900 INFO L482 AbstractCegarLoop]: Abstraction has 80 states and 126 transitions. [2021-06-12 22:35:27,901 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) [2021-06-12 22:35:27,904 INFO L276 IsEmpty]: Start isEmpty. Operand 80 states and 126 transitions. [2021-06-12 22:35:27,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:27,906 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:27,906 INFO L472 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] [2021-06-12 22:35:27,906 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-06-12 22:35:27,910 INFO L430 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:27,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:27,911 INFO L82 PathProgramCache]: Analyzing trace with hash 1972958505, now seen corresponding path program 7 times [2021-06-12 22:35:27,911 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:27,913 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [468827798] [2021-06-12 22:35:27,913 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:27,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:27,985 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:27,986 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:27,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [468827798] [2021-06-12 22:35:27,986 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [468827798] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:27,986 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:27,986 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-12 22:35:27,986 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156023100] [2021-06-12 22:35:27,987 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-12 22:35:27,987 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:27,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-12 22:35:27,987 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-12 22:35:27,987 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) [2021-06-12 22:35:28,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:28,126 INFO L93 Difference]: Finished difference Result 200 states and 309 transitions. [2021-06-12 22:35:28,126 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 22:35:28,126 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 [2021-06-12 22:35:28,127 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:28,127 INFO L225 Difference]: With dead ends: 200 [2021-06-12 22:35:28,127 INFO L226 Difference]: Without dead ends: 194 [2021-06-12 22:35:28,128 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 116.9ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-06-12 22:35:28,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 194 states. [2021-06-12 22:35:28,130 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 194 to 91. [2021-06-12 22:35:28,130 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) [2021-06-12 22:35:28,131 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 144 transitions. [2021-06-12 22:35:28,131 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 144 transitions. Word has length 31 [2021-06-12 22:35:28,131 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:28,131 INFO L482 AbstractCegarLoop]: Abstraction has 91 states and 144 transitions. [2021-06-12 22:35:28,131 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) [2021-06-12 22:35:28,131 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 144 transitions. [2021-06-12 22:35:28,131 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:28,132 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:28,132 INFO L472 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] [2021-06-12 22:35:28,132 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2021-06-12 22:35:28,132 INFO L430 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:28,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:28,132 INFO L82 PathProgramCache]: Analyzing trace with hash 2028412201, now seen corresponding path program 8 times [2021-06-12 22:35:28,133 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:28,133 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1627007882] [2021-06-12 22:35:28,133 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:28,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:28,206 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:28,206 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:28,206 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1627007882] [2021-06-12 22:35:28,206 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1627007882] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:28,206 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:28,206 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-12 22:35:28,206 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2033777890] [2021-06-12 22:35:28,207 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-12 22:35:28,207 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:28,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-12 22:35:28,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-12 22:35:28,208 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) [2021-06-12 22:35:28,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:28,337 INFO L93 Difference]: Finished difference Result 187 states and 285 transitions. [2021-06-12 22:35:28,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-06-12 22:35:28,338 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 [2021-06-12 22:35:28,338 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:28,339 INFO L225 Difference]: With dead ends: 187 [2021-06-12 22:35:28,339 INFO L226 Difference]: Without dead ends: 175 [2021-06-12 22:35:28,339 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 123.9ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-06-12 22:35:28,340 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 175 states. [2021-06-12 22:35:28,342 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 175 to 83. [2021-06-12 22:35:28,342 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) [2021-06-12 22:35:28,343 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 129 transitions. [2021-06-12 22:35:28,343 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 129 transitions. Word has length 31 [2021-06-12 22:35:28,343 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:28,343 INFO L482 AbstractCegarLoop]: Abstraction has 83 states and 129 transitions. [2021-06-12 22:35:28,343 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) [2021-06-12 22:35:28,343 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 129 transitions. [2021-06-12 22:35:28,344 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:28,344 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:28,344 INFO L472 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] [2021-06-12 22:35:28,344 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-06-12 22:35:28,344 INFO L430 AbstractCegarLoop]: === Iteration 9 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:28,344 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:28,344 INFO L82 PathProgramCache]: Analyzing trace with hash 440382761, now seen corresponding path program 9 times [2021-06-12 22:35:28,345 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:28,345 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [973528448] [2021-06-12 22:35:28,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:28,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:28,357 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:28,357 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:28,357 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [973528448] [2021-06-12 22:35:28,357 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [973528448] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:28,357 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:28,357 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2021-06-12 22:35:28,358 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1078135545] [2021-06-12 22:35:28,358 INFO L462 AbstractCegarLoop]: Interpolant automaton has 3 states [2021-06-12 22:35:28,358 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:28,358 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-06-12 22:35:28,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-12 22:35:28,359 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) [2021-06-12 22:35:28,362 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:28,362 INFO L93 Difference]: Finished difference Result 82 states and 124 transitions. [2021-06-12 22:35:28,363 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-06-12 22:35:28,363 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 [2021-06-12 22:35:28,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:28,363 INFO L225 Difference]: With dead ends: 82 [2021-06-12 22:35:28,364 INFO L226 Difference]: Without dead ends: 76 [2021-06-12 22:35:28,364 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 1.9ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-06-12 22:35:28,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 76 states. [2021-06-12 22:35:28,365 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 76 to 76. [2021-06-12 22:35:28,366 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) [2021-06-12 22:35:28,366 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 76 states to 76 states and 116 transitions. [2021-06-12 22:35:28,366 INFO L78 Accepts]: Start accepts. Automaton has 76 states and 116 transitions. Word has length 31 [2021-06-12 22:35:28,366 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:28,366 INFO L482 AbstractCegarLoop]: Abstraction has 76 states and 116 transitions. [2021-06-12 22:35:28,366 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) [2021-06-12 22:35:28,367 INFO L276 IsEmpty]: Start isEmpty. Operand 76 states and 116 transitions. [2021-06-12 22:35:28,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:28,367 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:28,367 INFO L472 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] [2021-06-12 22:35:28,367 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-06-12 22:35:28,367 INFO L430 AbstractCegarLoop]: === Iteration 10 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:28,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:28,368 INFO L82 PathProgramCache]: Analyzing trace with hash 205229245, now seen corresponding path program 10 times [2021-06-12 22:35:28,368 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:28,368 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [964810115] [2021-06-12 22:35:28,368 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:28,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:28,437 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:28,438 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:28,438 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [964810115] [2021-06-12 22:35:28,438 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [964810115] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:28,438 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:28,438 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-12 22:35:28,438 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1613248440] [2021-06-12 22:35:28,439 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-12 22:35:28,439 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:28,439 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-12 22:35:28,439 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-12 22:35:28,440 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) [2021-06-12 22:35:28,539 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:28,539 INFO L93 Difference]: Finished difference Result 98 states and 150 transitions. [2021-06-12 22:35:28,539 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 22:35:28,540 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 [2021-06-12 22:35:28,540 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:28,540 INFO L225 Difference]: With dead ends: 98 [2021-06-12 22:35:28,540 INFO L226 Difference]: Without dead ends: 94 [2021-06-12 22:35:28,541 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 109.3ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-06-12 22:35:28,541 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 94 states. [2021-06-12 22:35:28,542 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 94 to 83. [2021-06-12 22:35:28,543 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) [2021-06-12 22:35:28,543 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 126 transitions. [2021-06-12 22:35:28,543 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 126 transitions. Word has length 31 [2021-06-12 22:35:28,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:28,543 INFO L482 AbstractCegarLoop]: Abstraction has 83 states and 126 transitions. [2021-06-12 22:35:28,544 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) [2021-06-12 22:35:28,544 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 126 transitions. [2021-06-12 22:35:28,544 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:28,544 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:28,544 INFO L472 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] [2021-06-12 22:35:28,544 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-06-12 22:35:28,544 INFO L430 AbstractCegarLoop]: === Iteration 11 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:28,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:28,545 INFO L82 PathProgramCache]: Analyzing trace with hash 260682941, now seen corresponding path program 11 times [2021-06-12 22:35:28,545 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:28,545 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111599963] [2021-06-12 22:35:28,545 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:28,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:28,616 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:28,616 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:28,616 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111599963] [2021-06-12 22:35:28,616 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111599963] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:28,616 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:28,616 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-12 22:35:28,616 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1833281926] [2021-06-12 22:35:28,617 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-12 22:35:28,617 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:28,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-12 22:35:28,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=50, Unknown=0, NotChecked=0, Total=72 [2021-06-12 22:35:28,617 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) [2021-06-12 22:35:28,735 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:28,735 INFO L93 Difference]: Finished difference Result 87 states and 130 transitions. [2021-06-12 22:35:28,735 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 22:35:28,736 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 [2021-06-12 22:35:28,736 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:28,736 INFO L225 Difference]: With dead ends: 87 [2021-06-12 22:35:28,736 INFO L226 Difference]: Without dead ends: 74 [2021-06-12 22:35:28,737 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 129.4ms TimeCoverageRelationStatistics Valid=67, Invalid=115, Unknown=0, NotChecked=0, Total=182 [2021-06-12 22:35:28,737 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 74 states. [2021-06-12 22:35:28,738 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 74 to 74. [2021-06-12 22:35:28,738 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) [2021-06-12 22:35:28,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 74 states to 74 states and 112 transitions. [2021-06-12 22:35:28,739 INFO L78 Accepts]: Start accepts. Automaton has 74 states and 112 transitions. Word has length 31 [2021-06-12 22:35:28,739 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:28,739 INFO L482 AbstractCegarLoop]: Abstraction has 74 states and 112 transitions. [2021-06-12 22:35:28,739 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) [2021-06-12 22:35:28,739 INFO L276 IsEmpty]: Start isEmpty. Operand 74 states and 112 transitions. [2021-06-12 22:35:28,739 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:28,740 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:28,740 INFO L472 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] [2021-06-12 22:35:28,740 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-06-12 22:35:28,740 INFO L430 AbstractCegarLoop]: === Iteration 12 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:28,740 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:28,740 INFO L82 PathProgramCache]: Analyzing trace with hash 1640142747, now seen corresponding path program 12 times [2021-06-12 22:35:28,740 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:28,741 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1016309964] [2021-06-12 22:35:28,741 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:28,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:28,813 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:28,813 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:28,813 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1016309964] [2021-06-12 22:35:28,813 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1016309964] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:28,813 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:28,814 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-12 22:35:28,814 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [566376617] [2021-06-12 22:35:28,814 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-12 22:35:28,814 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:28,814 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-12 22:35:28,815 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-12 22:35:28,815 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) [2021-06-12 22:35:28,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:28,933 INFO L93 Difference]: Finished difference Result 104 states and 159 transitions. [2021-06-12 22:35:28,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 22:35:28,934 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 [2021-06-12 22:35:28,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:28,935 INFO L225 Difference]: With dead ends: 104 [2021-06-12 22:35:28,935 INFO L226 Difference]: Without dead ends: 100 [2021-06-12 22:35:28,935 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 121.0ms TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-06-12 22:35:28,936 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 100 states. [2021-06-12 22:35:28,937 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 100 to 83. [2021-06-12 22:35:28,937 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) [2021-06-12 22:35:28,938 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 83 states to 83 states and 125 transitions. [2021-06-12 22:35:28,938 INFO L78 Accepts]: Start accepts. Automaton has 83 states and 125 transitions. Word has length 31 [2021-06-12 22:35:28,938 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:28,938 INFO L482 AbstractCegarLoop]: Abstraction has 83 states and 125 transitions. [2021-06-12 22:35:28,938 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) [2021-06-12 22:35:28,938 INFO L276 IsEmpty]: Start isEmpty. Operand 83 states and 125 transitions. [2021-06-12 22:35:28,939 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:28,939 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:28,939 INFO L472 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] [2021-06-12 22:35:28,939 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2021-06-12 22:35:28,939 INFO L430 AbstractCegarLoop]: === Iteration 13 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:28,940 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:28,940 INFO L82 PathProgramCache]: Analyzing trace with hash 1695596443, now seen corresponding path program 13 times [2021-06-12 22:35:28,940 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:28,940 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [759128543] [2021-06-12 22:35:28,940 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:28,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:29,008 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:29,008 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:29,008 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [759128543] [2021-06-12 22:35:29,009 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [759128543] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:29,009 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:29,009 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2021-06-12 22:35:29,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [596968546] [2021-06-12 22:35:29,009 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-06-12 22:35:29,009 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:29,010 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-06-12 22:35:29,010 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2021-06-12 22:35:29,010 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) [2021-06-12 22:35:29,100 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:29,101 INFO L93 Difference]: Finished difference Result 87 states and 129 transitions. [2021-06-12 22:35:29,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-06-12 22:35:29,101 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 [2021-06-12 22:35:29,101 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:29,102 INFO L225 Difference]: With dead ends: 87 [2021-06-12 22:35:29,102 INFO L226 Difference]: Without dead ends: 73 [2021-06-12 22:35:29,102 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 108.6ms TimeCoverageRelationStatistics Valid=66, Invalid=116, Unknown=0, NotChecked=0, Total=182 [2021-06-12 22:35:29,102 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 73 states. [2021-06-12 22:35:29,104 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 73 to 73. [2021-06-12 22:35:29,104 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) [2021-06-12 22:35:29,104 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 73 states to 73 states and 110 transitions. [2021-06-12 22:35:29,104 INFO L78 Accepts]: Start accepts. Automaton has 73 states and 110 transitions. Word has length 31 [2021-06-12 22:35:29,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:29,104 INFO L482 AbstractCegarLoop]: Abstraction has 73 states and 110 transitions. [2021-06-12 22:35:29,105 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) [2021-06-12 22:35:29,105 INFO L276 IsEmpty]: Start isEmpty. Operand 73 states and 110 transitions. [2021-06-12 22:35:29,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2021-06-12 22:35:29,105 INFO L464 BasicCegarLoop]: Found error trace [2021-06-12 22:35:29,105 INFO L472 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] [2021-06-12 22:35:29,105 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2021-06-12 22:35:29,105 INFO L430 AbstractCegarLoop]: === Iteration 14 === [ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-06-12 22:35:29,106 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-06-12 22:35:29,106 INFO L82 PathProgramCache]: Analyzing trace with hash -127865327, now seen corresponding path program 14 times [2021-06-12 22:35:29,106 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-06-12 22:35:29,106 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [936544] [2021-06-12 22:35:29,106 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-06-12 22:35:29,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-06-12 22:35:29,179 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-06-12 22:35:29,179 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-06-12 22:35:29,179 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [936544] [2021-06-12 22:35:29,180 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [936544] provided 1 perfect and 0 imperfect interpolant sequences [2021-06-12 22:35:29,180 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-06-12 22:35:29,180 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2021-06-12 22:35:29,180 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277963937] [2021-06-12 22:35:29,180 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-06-12 22:35:29,180 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-06-12 22:35:29,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-06-12 22:35:29,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2021-06-12 22:35:29,181 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) [2021-06-12 22:35:29,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-06-12 22:35:29,234 INFO L93 Difference]: Finished difference Result 43 states and 62 transitions. [2021-06-12 22:35:29,234 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2021-06-12 22:35:29,234 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 [2021-06-12 22:35:29,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-06-12 22:35:29,234 INFO L225 Difference]: With dead ends: 43 [2021-06-12 22:35:29,234 INFO L226 Difference]: Without dead ends: 0 [2021-06-12 22:35:29,235 INFO L728 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 79.1ms TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2021-06-12 22:35:29,236 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-06-12 22:35:29,236 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-06-12 22:35:29,236 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) [2021-06-12 22:35:29,236 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-06-12 22:35:29,236 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 31 [2021-06-12 22:35:29,236 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-06-12 22:35:29,236 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-06-12 22:35:29,236 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) [2021-06-12 22:35:29,237 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-06-12 22:35:29,237 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-06-12 22:35:29,237 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2021-06-12 22:35:29,239 INFO L247 ceAbstractionStarter]: Analysis of concurrent program completed with 1 thread instances [2021-06-12 22:35:29,245 INFO L202 PluginConnector]: Adding new model easy6.wvr.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 12.06 10:35:29 BasicIcfg [2021-06-12 22:35:29,245 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-06-12 22:35:29,246 INFO L168 Benchmark]: Toolchain (without parser) took 3404.28 ms. Allocated memory was 255.9 MB in the beginning and 307.2 MB in the end (delta: 51.4 MB). Free memory was 236.4 MB in the beginning and 279.1 MB in the end (delta: -42.7 MB). Peak memory consumption was 9.2 MB. Max. memory is 8.0 GB. [2021-06-12 22:35:29,246 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 22:35:29,246 INFO L168 Benchmark]: Boogie Procedure Inliner took 23.05 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 234.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 22:35:29,246 INFO L168 Benchmark]: Boogie Preprocessor took 9.78 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. [2021-06-12 22:35:29,246 INFO L168 Benchmark]: RCFGBuilder took 227.85 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 222.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. [2021-06-12 22:35:29,247 INFO L168 Benchmark]: TraceAbstraction took 3136.41 ms. Allocated memory was 255.9 MB in the beginning and 307.2 MB in the end (delta: 51.4 MB). Free memory was 221.9 MB in the beginning and 279.1 MB in the end (delta: -57.2 MB). There was no memory consumed. Max. memory is 8.0 GB. [2021-06-12 22:35:29,255 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 0.11 ms. Allocated memory is still 255.9 MB. Free memory is still 237.4 MB. There was no memory consumed. Max. memory is 8.0 GB. * Boogie Procedure Inliner took 23.05 ms. Allocated memory is still 255.9 MB. Free memory was 236.4 MB in the beginning and 234.9 MB in the end (delta: 1.5 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 9.78 ms. Allocated memory is still 255.9 MB. Free memory was 234.8 MB in the beginning and 233.8 MB in the end (delta: 1.0 MB). Peak memory consumption was 1.0 MB. Max. memory is 8.0 GB. * RCFGBuilder took 227.85 ms. Allocated memory is still 255.9 MB. Free memory was 233.8 MB in the beginning and 222.3 MB in the end (delta: 11.5 MB). Peak memory consumption was 11.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 3136.41 ms. Allocated memory was 255.9 MB in the beginning and 307.2 MB in the end (delta: 51.4 MB). Free memory was 221.9 MB in the beginning and 279.1 MB in the end (delta: -57.2 MB). There was no memory consumed. Max. memory is 8.0 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 for errors in thread instance: ULTIMATE.start with 1 thread instances CFG has 5 procedures, 60 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 3058.0ms, OverallIterations: 14, TraceHistogramMax: 1, EmptinessCheckTime: 22.5ms, AutomataDifference: 1464.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 28.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 540 SDtfs, 1443 SDslu, 1489 SDs, 0 SdLazy, 544 SolverSat, 180 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 390.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 161 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 135 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 67 ImplicationChecksByTransitivity, 1344.2ms 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: 117.8ms AutomataMinimizationTime, 14 MinimizatonAttempts, 583 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 23.2ms SsaConstructionTime, 110.7ms SatisfiabilityAnalysisTime, 1106.9ms 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...