/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-SemanticLbe.epf -tc ../../../trunk/examples/toolchains/AutomizerBplInline.xml -i ../../../trunk/examples/concurrent/bpl/mcr/example_3.bpl -------------------------------------------------------------------------------- This is Ultimate 0.2.1-7cd14b8b9f04096d8ddfd3d9cd8a4ac590fe5404-7cd14b8 [2021-03-11 14:33:44,423 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-03-11 14:33:44,425 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-03-11 14:33:44,468 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-03-11 14:33:44,489 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-03-11 14:33:44,490 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-03-11 14:33:44,492 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-03-11 14:33:44,492 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-03-11 14:33:44,493 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-03-11 14:33:44,494 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-03-11 14:33:44,495 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-03-11 14:33:44,496 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-03-11 14:33:44,497 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-03-11 14:33:44,498 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-03-11 14:33:44,499 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-03-11 14:33:44,500 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-03-11 14:33:44,502 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2021-03-11 14:33:44,507 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-03-11 14:33:44,508 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-03-11 14:33:44,509 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-03-11 14:33:44,515 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-SemanticLbe.epf [2021-03-11 14:33:44,550 INFO L113 SettingsManager]: Loading preferences was successful [2021-03-11 14:33:44,550 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-03-11 14:33:44,553 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-03-11 14:33:44,553 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-03-11 14:33:44,553 INFO L138 SettingsManager]: * Use SBE=true [2021-03-11 14:33:44,553 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-03-11 14:33:44,553 INFO L138 SettingsManager]: * sizeof long=4 [2021-03-11 14:33:44,553 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-03-11 14:33:44,554 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-03-11 14:33:44,554 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-03-11 14:33:44,554 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-03-11 14:33:44,554 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-03-11 14:33:44,555 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-03-11 14:33:44,555 INFO L138 SettingsManager]: * sizeof long double=12 [2021-03-11 14:33:44,555 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-03-11 14:33:44,555 INFO L138 SettingsManager]: * Use constant arrays=true [2021-03-11 14:33:44,555 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-03-11 14:33:44,555 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-03-11 14:33:44,555 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-03-11 14:33:44,555 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-03-11 14:33:44,556 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-03-11 14:33:44,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-03-11 14:33:44,556 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-03-11 14:33:44,556 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-03-11 14:33:44,556 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-03-11 14:33:44,556 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-03-11 14:33:44,556 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-03-11 14:33:44,556 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-03-11 14:33:44,556 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-03-11 14:33:44,834 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-03-11 14:33:44,851 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-03-11 14:33:44,853 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-03-11 14:33:44,854 INFO L271 PluginConnector]: Initializing Boogie PL CUP Parser... [2021-03-11 14:33:44,854 INFO L275 PluginConnector]: Boogie PL CUP Parser initialized [2021-03-11 14:33:44,855 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_3.bpl [2021-03-11 14:33:44,855 INFO L110 BoogieParser]: Parsing: '/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/concurrent/bpl/mcr/example_3.bpl' [2021-03-11 14:33:44,888 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-03-11 14:33:44,894 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2021-03-11 14:33:44,896 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-03-11 14:33:44,896 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-03-11 14:33:44,896 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-03-11 14:33:44,906 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:33:44" (1/1) ... [2021-03-11 14:33:44,914 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:33:44" (1/1) ... [2021-03-11 14:33:44,920 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-03-11 14:33:44,921 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-03-11 14:33:44,922 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-03-11 14:33:44,922 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-03-11 14:33:44,931 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:33:44" (1/1) ... [2021-03-11 14:33:44,931 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:33:44" (1/1) ... [2021-03-11 14:33:44,932 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:33:44" (1/1) ... [2021-03-11 14:33:44,932 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:33:44" (1/1) ... [2021-03-11 14:33:44,934 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:33:44" (1/1) ... [2021-03-11 14:33:44,935 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:33:44" (1/1) ... [2021-03-11 14:33:44,935 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:33:44" (1/1) ... [2021-03-11 14:33:44,936 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-03-11 14:33:44,937 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-03-11 14:33:44,937 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-03-11 14:33:44,937 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-03-11 14:33:44,943 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:33:44" (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 [2021-03-11 14:33:45,005 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_1 given in one single declaration [2021-03-11 14:33:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure set_1 [2021-03-11 14:33:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure set_1 [2021-03-11 14:33:45,005 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_2 given in one single declaration [2021-03-11 14:33:45,005 INFO L130 BoogieDeclarations]: Found specification of procedure set_2 [2021-03-11 14:33:45,005 INFO L138 BoogieDeclarations]: Found implementation of procedure set_2 [2021-03-11 14:33:45,006 INFO L124 BoogieDeclarations]: Specification and implementation of procedure set_0 given in one single declaration [2021-03-11 14:33:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure set_0 [2021-03-11 14:33:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure set_0 [2021-03-11 14:33:45,006 INFO L124 BoogieDeclarations]: Specification and implementation of procedure ULTIMATE.start given in one single declaration [2021-03-11 14:33:45,006 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-03-11 14:33:45,006 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-03-11 14:33:45,007 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-03-11 14:33:45,124 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-03-11 14:33:45,124 INFO L299 CfgBuilder]: Removed 0 assume(true) statements. [2021-03-11 14:33:45,126 INFO L202 PluginConnector]: Adding new model example_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:33:45 BoogieIcfgContainer [2021-03-11 14:33:45,126 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-03-11 14:33:45,128 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-03-11 14:33:45,128 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-03-11 14:33:45,131 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-03-11 14:33:45,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_3.bpl de.uni_freiburg.informatik.ultimate.boogie.parser AST 11.03 02:33:44" (1/2) ... [2021-03-11 14:33:45,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@72e70401 and model type example_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 11.03 02:33:45, skipping insertion in model container [2021-03-11 14:33:45,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "example_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 11.03 02:33:45" (2/2) ... [2021-03-11 14:33:45,133 INFO L111 eAbstractionObserver]: Analyzing ICFG example_3.bpl [2021-03-11 14:33:45,141 WARN L142 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-03-11 14:33:45,141 INFO L153 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-03-11 14:33:45,145 INFO L165 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2021-03-11 14:33:45,145 INFO L323 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-03-11 14:33:45,207 INFO L149 ThreadInstanceAdder]: Constructed 9 joinOtherThreadTransitions. [2021-03-11 14:33:45,221 INFO L253 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-03-11 14:33:45,249 INFO L376 AbstractCegarLoop]: Interprodecural is true [2021-03-11 14:33:45,250 INFO L377 AbstractCegarLoop]: Hoare is true [2021-03-11 14:33:45,250 INFO L378 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-03-11 14:33:45,250 INFO L379 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-03-11 14:33:45,250 INFO L380 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-03-11 14:33:45,250 INFO L381 AbstractCegarLoop]: Difference is false [2021-03-11 14:33:45,250 INFO L382 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-03-11 14:33:45,250 INFO L386 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-03-11 14:33:45,263 INFO L118 etLargeBlockEncoding]: Petri net LBE is using semantic-based independence relation. [2021-03-11 14:33:45,273 INFO L133 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 28 places, 24 transitions, 90 flow [2021-03-11 14:33:45,276 INFO L110 LiptonReduction]: Starting Lipton reduction on Petri net that has 28 places, 24 transitions, 90 flow [2021-03-11 14:33:45,277 INFO L74 FinitePrefix]: Start finitePrefix. Operand has 28 places, 24 transitions, 90 flow [2021-03-11 14:33:45,304 INFO L129 PetriNetUnfolder]: 5/24 cut-off events. [2021-03-11 14:33:45,304 INFO L130 PetriNetUnfolder]: For 12/12 co-relation queries the response was YES. [2021-03-11 14:33:45,307 INFO L84 FinitePrefix]: Finished finitePrefix Result has 46 conditions, 24 events. 5/24 cut-off events. For 12/12 co-relation queries the response was YES. Maximal size of possible extension queue 4. Compared 35 event pairs, 0 based on Foata normal form. 0/23 useless extension candidates. Maximal degree in co-relation 20. Up to 6 conditions per place. [2021-03-11 14:33:45,309 INFO L116 LiptonReduction]: Number of co-enabled transitions 84 [2021-03-11 14:33:45,386 INFO L131 LiptonReduction]: Checked pairs total: 171 [2021-03-11 14:33:45,386 INFO L133 LiptonReduction]: Total number of compositions: 4 [2021-03-11 14:33:45,392 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 24 places, 20 transitions, 82 flow [2021-03-11 14:33:45,400 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 36 states, 34 states have (on average 2.0) internal successors, (68), 35 states have internal predecessors, (68), 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) [2021-03-11 14:33:45,401 INFO L276 IsEmpty]: Start isEmpty. Operand has 36 states, 34 states have (on average 2.0) internal successors, (68), 35 states have internal predecessors, (68), 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) [2021-03-11 14:33:45,405 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 14:33:45,405 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:33:45,405 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:33:45,405 INFO L428 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:33:45,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:33:45,409 INFO L82 PathProgramCache]: Analyzing trace with hash 1211726253, now seen corresponding path program 1 times [2021-03-11 14:33:45,414 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:33:45,415 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712460876] [2021-03-11 14:33:45,415 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:33:45,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:33:45,576 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:45,577 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:33:45,591 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:45,592 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:33:45,613 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:33:45,615 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:33:45,636 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-11 14:33:45,637 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 14:33:45,655 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:33:45,656 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712460876] [2021-03-11 14:33:45,656 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:33:45,657 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 14:33:45,657 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1267105136] [2021-03-11 14:33:45,661 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 14:33:45,662 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:33:45,674 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 14:33:45,675 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 14:33:45,677 INFO L87 Difference]: Start difference. First operand has 36 states, 34 states have (on average 2.0) internal successors, (68), 35 states have internal predecessors, (68), 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 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:33:45,719 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:33:45,719 INFO L93 Difference]: Finished difference Result 58 states and 104 transitions. [2021-03-11 14:33:45,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 14:33:45,720 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-03-11 14:33:45,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:33:45,726 INFO L225 Difference]: With dead ends: 58 [2021-03-11 14:33:45,726 INFO L226 Difference]: Without dead ends: 44 [2021-03-11 14:33:45,727 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 53.8ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-11 14:33:45,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 44 states. [2021-03-11 14:33:45,749 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 44 to 35. [2021-03-11 14:33:45,750 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 35 states, 34 states have (on average 1.8823529411764706) internal successors, (64), 34 states have internal predecessors, (64), 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) [2021-03-11 14:33:45,751 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 35 states to 35 states and 64 transitions. [2021-03-11 14:33:45,752 INFO L78 Accepts]: Start accepts. Automaton has 35 states and 64 transitions. Word has length 10 [2021-03-11 14:33:45,752 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:33:45,752 INFO L480 AbstractCegarLoop]: Abstraction has 35 states and 64 transitions. [2021-03-11 14:33:45,753 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:33:45,753 INFO L276 IsEmpty]: Start isEmpty. Operand 35 states and 64 transitions. [2021-03-11 14:33:45,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 14:33:45,753 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:33:45,754 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:33:45,754 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-03-11 14:33:45,754 INFO L428 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:33:45,754 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:33:45,755 INFO L82 PathProgramCache]: Analyzing trace with hash 409452275, now seen corresponding path program 2 times [2021-03-11 14:33:45,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:33:45,755 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [626095225] [2021-03-11 14:33:45,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:33:45,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:33:45,783 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:45,784 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:33:45,785 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:45,786 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:33:45,795 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:45,797 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 14:33:45,813 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-11 14:33:45,814 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 14:33:45,828 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:33:45,828 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [626095225] [2021-03-11 14:33:45,828 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:33:45,828 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 14:33:45,829 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1721722940] [2021-03-11 14:33:45,830 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 14:33:45,831 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:33:45,832 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 14:33:45,832 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 14:33:45,832 INFO L87 Difference]: Start difference. First operand 35 states and 64 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:33:45,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:33:45,877 INFO L93 Difference]: Finished difference Result 56 states and 97 transitions. [2021-03-11 14:33:45,877 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 14:33:45,878 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-03-11 14:33:45,879 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:33:45,880 INFO L225 Difference]: With dead ends: 56 [2021-03-11 14:33:45,880 INFO L226 Difference]: Without dead ends: 40 [2021-03-11 14:33:45,882 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 50.7ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-11 14:33:45,882 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 40 states. [2021-03-11 14:33:45,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 40 to 31. [2021-03-11 14:33:45,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 31 states, 30 states have (on average 1.8666666666666667) internal successors, (56), 30 states have internal predecessors, (56), 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) [2021-03-11 14:33:45,891 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31 states to 31 states and 56 transitions. [2021-03-11 14:33:45,891 INFO L78 Accepts]: Start accepts. Automaton has 31 states and 56 transitions. Word has length 10 [2021-03-11 14:33:45,891 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:33:45,891 INFO L480 AbstractCegarLoop]: Abstraction has 31 states and 56 transitions. [2021-03-11 14:33:45,892 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:33:45,892 INFO L276 IsEmpty]: Start isEmpty. Operand 31 states and 56 transitions. [2021-03-11 14:33:45,894 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 14:33:45,894 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:33:45,894 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:33:45,894 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2021-03-11 14:33:45,894 INFO L428 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:33:45,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:33:45,901 INFO L82 PathProgramCache]: Analyzing trace with hash 1720537523, now seen corresponding path program 3 times [2021-03-11 14:33:45,901 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:33:45,902 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1785758853] [2021-03-11 14:33:45,902 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:33:45,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:33:45,922 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:45,922 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:33:45,923 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:45,924 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:33:45,930 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:33:45,930 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:33:45,941 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-11 14:33:45,942 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 14:33:45,952 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:33:45,953 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1785758853] [2021-03-11 14:33:45,953 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:33:45,953 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 14:33:45,953 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1754231594] [2021-03-11 14:33:45,954 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 14:33:45,954 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:33:45,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 14:33:45,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 14:33:45,955 INFO L87 Difference]: Start difference. First operand 31 states and 56 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:33:45,975 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:33:45,975 INFO L93 Difference]: Finished difference Result 48 states and 81 transitions. [2021-03-11 14:33:45,976 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 14:33:45,976 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-03-11 14:33:45,976 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:33:45,977 INFO L225 Difference]: With dead ends: 48 [2021-03-11 14:33:45,977 INFO L226 Difference]: Without dead ends: 35 [2021-03-11 14:33:45,977 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 33.0ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-11 14:33:45,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35 states. [2021-03-11 14:33:45,979 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35 to 26. [2021-03-11 14:33:45,980 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 26 states, 25 states have (on average 1.76) internal successors, (44), 25 states have internal predecessors, (44), 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) [2021-03-11 14:33:45,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 26 states to 26 states and 44 transitions. [2021-03-11 14:33:45,980 INFO L78 Accepts]: Start accepts. Automaton has 26 states and 44 transitions. Word has length 10 [2021-03-11 14:33:45,980 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:33:45,980 INFO L480 AbstractCegarLoop]: Abstraction has 26 states and 44 transitions. [2021-03-11 14:33:45,980 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:33:45,980 INFO L276 IsEmpty]: Start isEmpty. Operand 26 states and 44 transitions. [2021-03-11 14:33:45,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 14:33:45,981 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:33:45,981 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:33:45,981 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-03-11 14:33:45,981 INFO L428 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:33:45,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:33:45,982 INFO L82 PathProgramCache]: Analyzing trace with hash 1804843705, now seen corresponding path program 4 times [2021-03-11 14:33:45,982 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:33:45,982 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48576256] [2021-03-11 14:33:45,982 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:33:45,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:33:46,000 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:46,000 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:33:46,001 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:46,001 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:33:46,007 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:33:46,008 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:33:46,018 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-11 14:33:46,019 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 14:33:46,028 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:33:46,028 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48576256] [2021-03-11 14:33:46,029 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:33:46,029 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 14:33:46,029 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765932510] [2021-03-11 14:33:46,029 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 14:33:46,029 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:33:46,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 14:33:46,030 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 14:33:46,030 INFO L87 Difference]: Start difference. First operand 26 states and 44 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:33:46,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:33:46,051 INFO L93 Difference]: Finished difference Result 38 states and 64 transitions. [2021-03-11 14:33:46,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 14:33:46,052 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-03-11 14:33:46,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:33:46,052 INFO L225 Difference]: With dead ends: 38 [2021-03-11 14:33:46,052 INFO L226 Difference]: Without dead ends: 23 [2021-03-11 14:33:46,053 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 31.5ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-11 14:33:46,053 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 23 states. [2021-03-11 14:33:46,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 23 to 23. [2021-03-11 14:33:46,055 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 22 states have (on average 1.7272727272727273) internal successors, (38), 22 states have internal predecessors, (38), 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) [2021-03-11 14:33:46,055 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 38 transitions. [2021-03-11 14:33:46,055 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 38 transitions. Word has length 10 [2021-03-11 14:33:46,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:33:46,055 INFO L480 AbstractCegarLoop]: Abstraction has 23 states and 38 transitions. [2021-03-11 14:33:46,056 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:33:46,056 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 38 transitions. [2021-03-11 14:33:46,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 14:33:46,056 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:33:46,056 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:33:46,056 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-03-11 14:33:46,057 INFO L428 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:33:46,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:33:46,057 INFO L82 PathProgramCache]: Analyzing trace with hash -1618518763, now seen corresponding path program 5 times [2021-03-11 14:33:46,057 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:33:46,057 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [469555134] [2021-03-11 14:33:46,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:33:46,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:33:46,072 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:46,073 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:33:46,073 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:46,074 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:33:46,079 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:46,080 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 13 [2021-03-11 14:33:46,089 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-11 14:33:46,090 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 14:33:46,099 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:33:46,099 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [469555134] [2021-03-11 14:33:46,099 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:33:46,100 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 14:33:46,100 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013200903] [2021-03-11 14:33:46,100 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 14:33:46,100 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:33:46,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 14:33:46,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 14:33:46,101 INFO L87 Difference]: Start difference. First operand 23 states and 38 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:33:46,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:33:46,125 INFO L93 Difference]: Finished difference Result 31 states and 50 transitions. [2021-03-11 14:33:46,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 14:33:46,125 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-03-11 14:33:46,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:33:46,126 INFO L225 Difference]: With dead ends: 31 [2021-03-11 14:33:46,126 INFO L226 Difference]: Without dead ends: 19 [2021-03-11 14:33:46,126 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 37.1ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-11 14:33:46,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19 states. [2021-03-11 14:33:46,128 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19 to 19. [2021-03-11 14:33:46,128 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 19 states, 18 states have (on average 1.5555555555555556) internal successors, (28), 18 states have internal predecessors, (28), 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) [2021-03-11 14:33:46,128 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 19 states to 19 states and 28 transitions. [2021-03-11 14:33:46,128 INFO L78 Accepts]: Start accepts. Automaton has 19 states and 28 transitions. Word has length 10 [2021-03-11 14:33:46,128 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:33:46,129 INFO L480 AbstractCegarLoop]: Abstraction has 19 states and 28 transitions. [2021-03-11 14:33:46,129 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:33:46,129 INFO L276 IsEmpty]: Start isEmpty. Operand 19 states and 28 transitions. [2021-03-11 14:33:46,129 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2021-03-11 14:33:46,129 INFO L511 BasicCegarLoop]: Found error trace [2021-03-11 14:33:46,129 INFO L519 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-03-11 14:33:46,129 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-03-11 14:33:46,130 INFO L428 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONASSERT]=== [2021-03-11 14:33:46,130 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-03-11 14:33:46,130 INFO L82 PathProgramCache]: Analyzing trace with hash -1590813133, now seen corresponding path program 6 times [2021-03-11 14:33:46,130 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-03-11 14:33:46,130 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2072097289] [2021-03-11 14:33:46,130 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-03-11 14:33:46,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-03-11 14:33:46,144 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:46,144 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 1 [2021-03-11 14:33:46,145 INFO L142 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size [2021-03-11 14:33:46,145 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 7 [2021-03-11 14:33:46,151 INFO L142 QuantifierPusher]: treesize reduction 9, result has 62.5 percent of original size [2021-03-11 14:33:46,152 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 15 [2021-03-11 14:33:46,161 INFO L142 QuantifierPusher]: treesize reduction 18, result has 48.6 percent of original size [2021-03-11 14:33:46,162 INFO L147 QuantifierPusher]: treesize reduction 0, result has 100.0 percent of original size 17 [2021-03-11 14:33:46,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-03-11 14:33:46,171 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2072097289] [2021-03-11 14:33:46,171 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-03-11 14:33:46,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2021-03-11 14:33:46,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1889976866] [2021-03-11 14:33:46,172 INFO L460 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-03-11 14:33:46,172 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-03-11 14:33:46,172 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-03-11 14:33:46,173 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2021-03-11 14:33:46,173 INFO L87 Difference]: Start difference. First operand 19 states and 28 transitions. Second operand has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:33:46,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-03-11 14:33:46,187 INFO L93 Difference]: Finished difference Result 18 states and 27 transitions. [2021-03-11 14:33:46,187 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-03-11 14:33:46,187 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 10 [2021-03-11 14:33:46,187 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-03-11 14:33:46,188 INFO L225 Difference]: With dead ends: 18 [2021-03-11 14:33:46,188 INFO L226 Difference]: Without dead ends: 0 [2021-03-11 14:33:46,188 INFO L775 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 30.3ms TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2021-03-11 14:33:46,188 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-03-11 14:33:46,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-03-11 14:33:46,188 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) [2021-03-11 14:33:46,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-03-11 14:33:46,189 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 10 [2021-03-11 14:33:46,189 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-03-11 14:33:46,189 INFO L480 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-03-11 14:33:46,189 INFO L481 AbstractCegarLoop]: Interpolant automaton has has 5 states, 4 states have (on average 2.5) internal successors, (10), 5 states have internal predecessors, (10), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-03-11 14:33:46,189 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-03-11 14:33:46,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-03-11 14:33:46,189 WARN L517 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2021-03-11 14:33:46,192 INFO L202 PluginConnector]: Adding new model example_3.bpl de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 11.03 02:33:46 BasicIcfg [2021-03-11 14:33:46,192 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-03-11 14:33:46,193 INFO L168 Benchmark]: Toolchain (without parser) took 1303.12 ms. Allocated memory is still 360.7 MB. Free memory was 341.1 MB in the beginning and 250.2 MB in the end (delta: 91.0 MB). Peak memory consumption was 92.3 MB. Max. memory is 16.0 GB. [2021-03-11 14:33:46,193 INFO L168 Benchmark]: Boogie PL CUP Parser took 0.12 ms. Allocated memory is still 360.7 MB. Free memory was 342.1 MB in the beginning and 342.1 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:33:46,194 INFO L168 Benchmark]: Boogie Procedure Inliner took 24.91 ms. Allocated memory is still 360.7 MB. Free memory was 340.6 MB in the beginning and 339.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-03-11 14:33:46,194 INFO L168 Benchmark]: Boogie Preprocessor took 15.25 ms. Allocated memory is still 360.7 MB. Free memory was 339.2 MB in the beginning and 338.3 MB in the end (delta: 824.9 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-03-11 14:33:46,195 INFO L168 Benchmark]: RCFGBuilder took 189.35 ms. Allocated memory is still 360.7 MB. Free memory was 338.2 MB in the beginning and 329.4 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. [2021-03-11 14:33:46,195 INFO L168 Benchmark]: TraceAbstraction took 1063.98 ms. Allocated memory is still 360.7 MB. Free memory was 328.9 MB in the beginning and 250.2 MB in the end (delta: 78.7 MB). Peak memory consumption was 79.7 MB. Max. memory is 16.0 GB. [2021-03-11 14:33:46,197 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 0.12 ms. Allocated memory is still 360.7 MB. Free memory was 342.1 MB in the beginning and 342.1 MB in the end (delta: 75.1 kB). There was no memory consumed. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 24.91 ms. Allocated memory is still 360.7 MB. Free memory was 340.6 MB in the beginning and 339.2 MB in the end (delta: 1.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 15.25 ms. Allocated memory is still 360.7 MB. Free memory was 339.2 MB in the beginning and 338.3 MB in the end (delta: 824.9 kB). There was no memory consumed. Max. memory is 16.0 GB. * RCFGBuilder took 189.35 ms. Allocated memory is still 360.7 MB. Free memory was 338.2 MB in the beginning and 329.4 MB in the end (delta: 8.9 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.0 GB. * TraceAbstraction took 1063.98 ms. Allocated memory is still 360.7 MB. Free memory was 328.9 MB in the beginning and 250.2 MB in the end (delta: 78.7 MB). Peak memory consumption was 79.7 MB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks Lipton Reduction Statistics: ReductionTime: 110.5ms, 28 PlacesBefore, 24 PlacesAfterwards, 24 TransitionsBefore, 20 TransitionsAfterwards, 84 CoEnabledTransitionPairs, 1 FixpointIterations, 1 TrivialSequentialCompositions, 3 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 0 ConcurrentYvCompositions, 0 ChoiceCompositions, 4 TotalNumberOfCompositions, 171 MoverChecksTotal, Independence Relation Statistics: CachedIndependenceRelation.Independence Queries: [ total: 171, positive: 171, positive conditional: 0, positive unconditional: 171, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , CachedIndependenceRelation.Statistics on underlying relation: UnionIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , UnionIndependenceRelation.Statistics on underlying relations: [ SyntacticIndependenceRelation.Independence Queries: [ total: 54, positive: 54, positive conditional: 0, positive unconditional: 54, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Independence Queries: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] , SemanticIndependenceRelation.Query Time [ms]: [ total: 0, positive: 0, positive conditional: 0, positive unconditional: 0, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 0, unknown conditional: 0, unknown unconditional: 0] ], Cache Queries: [ total: 171, positive: 117, positive conditional: 0, positive unconditional: 117, negative: 0, negative conditional: 0, negative unconditional: 0, unknown: 54, unknown conditional: 0, unknown unconditional: 54] , Statistics on independence cache: Total cache size (in pairs): 21, Positive cache size: 21, Positive conditional cache size: 0, Positive unconditional cache size: 21, Negative cache size: 0, Negative conditional cache size: 0, Negative unconditional cache size: 0 - PositiveResult [Line: 19]: assertion always holds For all program executions holds that assertion always holds at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 19 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 942.3ms, OverallIterations: 6, TraceHistogramMax: 1, EmptinessCheckTime: 8.7ms, AutomataDifference: 203.5ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 149.3ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 154 SDtfs, 243 SDslu, 191 SDs, 0 SdLazy, 45 SolverSat, 3 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 38.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 30 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 24 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 236.7ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=36occurred in iteration=0, InterpolantAutomatonStates: 30, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 31.5ms AutomataMinimizationTime, 6 MinimizatonAttempts, 27 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 9.7ms SsaConstructionTime, 24.4ms SatisfiabilityAnalysisTime, 380.1ms InterpolantComputationTime, 60 NumberOfCodeBlocks, 60 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 54 ConstructedInterpolants, 0 QuantifiedInterpolants, 606 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...