/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/locks/test_locks_5.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-267fbe0 [2020-07-17 17:24:31,712 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-17 17:24:31,715 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-17 17:24:31,726 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-17 17:24:31,727 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-17 17:24:31,728 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-17 17:24:31,729 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-17 17:24:31,731 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-17 17:24:31,732 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-17 17:24:31,733 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-17 17:24:31,734 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-17 17:24:31,735 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-17 17:24:31,735 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-17 17:24:31,736 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-17 17:24:31,737 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-17 17:24:31,739 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-17 17:24:31,739 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-17 17:24:31,740 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-17 17:24:31,742 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-17 17:24:31,744 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-17 17:24:31,745 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-17 17:24:31,747 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-17 17:24:31,748 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-17 17:24:31,748 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-17 17:24:31,751 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... 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[2020-07-17 17:24:31,758 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-17 17:24:31,759 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-17 17:24:31,760 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-17 17:24:31,761 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-17 17:24:31,773 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-17 17:24:31,773 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-17 17:24:31,774 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-17 17:24:31,774 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-17 17:24:31,774 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-17 17:24:31,775 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-17 17:24:31,775 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-17 17:24:31,775 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-17 17:24:31,775 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-17 17:24:31,775 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-17 17:24:31,776 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-17 17:24:31,776 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-17 17:24:31,776 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-17 17:24:31,776 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-17 17:24:31,776 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-17 17:24:31,777 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-17 17:24:31,777 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-17 17:24:31,777 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-17 17:24:31,777 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-17 17:24:31,777 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-17 17:24:31,778 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-17 17:24:31,778 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-17 17:24:31,778 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-07-17 17:24:32,106 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-17 17:24:32,126 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-17 17:24:32,130 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-17 17:24:32,132 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-17 17:24:32,132 INFO L275 PluginConnector]: CDTParser initialized [2020-07-17 17:24:32,133 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/locks/test_locks_5.c [2020-07-17 17:24:32,208 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/954b9779a/6cdf246465854a3bb0fea406667c9903/FLAGa391a0037 [2020-07-17 17:24:32,660 INFO L306 CDTParser]: Found 1 translation units. [2020-07-17 17:24:32,661 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/locks/test_locks_5.c [2020-07-17 17:24:32,668 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/954b9779a/6cdf246465854a3bb0fea406667c9903/FLAGa391a0037 [2020-07-17 17:24:33,019 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/954b9779a/6cdf246465854a3bb0fea406667c9903 [2020-07-17 17:24:33,029 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-17 17:24:33,032 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-17 17:24:33,033 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-17 17:24:33,033 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-17 17:24:33,037 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-17 17:24:33,038 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:24:33" (1/1) ... [2020-07-17 17:24:33,041 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7784e4bc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:24:33, skipping insertion in model container [2020-07-17 17:24:33,042 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 17.07 05:24:33" (1/1) ... [2020-07-17 17:24:33,050 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-17 17:24:33,069 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-17 17:24:33,243 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:24:33,250 INFO L203 MainTranslator]: Completed pre-run [2020-07-17 17:24:33,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-17 17:24:33,302 INFO L208 MainTranslator]: Completed translation [2020-07-17 17:24:33,303 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:24:33 WrapperNode [2020-07-17 17:24:33,303 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-17 17:24:33,304 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-17 17:24:33,304 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-17 17:24:33,305 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-17 17:24:33,319 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:24:33" (1/1) ... [2020-07-17 17:24:33,319 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:24:33" (1/1) ... [2020-07-17 17:24:33,327 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:24:33" (1/1) ... [2020-07-17 17:24:33,327 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:24:33" (1/1) ... [2020-07-17 17:24:33,336 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:24:33" (1/1) ... [2020-07-17 17:24:33,423 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:24:33" (1/1) ... [2020-07-17 17:24:33,425 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:24:33" (1/1) ... [2020-07-17 17:24:33,434 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-17 17:24:33,434 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-17 17:24:33,435 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-17 17:24:33,435 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-17 17:24:33,437 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:24:33" (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 [2020-07-17 17:24:33,517 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-17 17:24:33,518 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-17 17:24:33,518 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-17 17:24:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-17 17:24:33,518 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-17 17:24:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-17 17:24:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-17 17:24:33,519 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-17 17:24:33,884 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-17 17:24:33,884 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-07-17 17:24:33,889 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:24:33 BoogieIcfgContainer [2020-07-17 17:24:33,889 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-17 17:24:33,890 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-17 17:24:33,891 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-17 17:24:33,894 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-17 17:24:33,894 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 17.07 05:24:33" (1/3) ... [2020-07-17 17:24:33,895 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e74c4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:24:33, skipping insertion in model container [2020-07-17 17:24:33,895 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 17.07 05:24:33" (2/3) ... [2020-07-17 17:24:33,896 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e74c4fc and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 17.07 05:24:33, skipping insertion in model container [2020-07-17 17:24:33,896 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 17.07 05:24:33" (3/3) ... [2020-07-17 17:24:33,897 INFO L109 eAbstractionObserver]: Analyzing ICFG test_locks_5.c [2020-07-17 17:24:33,908 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-17 17:24:33,915 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-17 17:24:33,927 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-17 17:24:33,947 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-17 17:24:33,948 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-17 17:24:33,948 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-07-17 17:24:33,948 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-17 17:24:33,948 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-17 17:24:33,948 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-17 17:24:33,948 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-17 17:24:33,948 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-17 17:24:33,965 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states. [2020-07-17 17:24:33,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 44 [2020-07-17 17:24:33,977 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:24:33,978 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:24:33,978 INFO L427 AbstractCegarLoop]: === Iteration 1 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:24:33,984 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:24:33,984 INFO L82 PathProgramCache]: Analyzing trace with hash -1222569836, now seen corresponding path program 1 times [2020-07-17 17:24:33,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:24:33,992 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1980105982] [2020-07-17 17:24:33,993 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:24:34,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:34,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:34,176 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:24:34,177 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1980105982] [2020-07-17 17:24:34,179 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:24:34,179 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 17:24:34,180 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [634593025] [2020-07-17 17:24:34,186 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 17:24:34,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:24:34,201 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 17:24:34,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:34,205 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 3 states. [2020-07-17 17:24:34,337 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:24:34,337 INFO L93 Difference]: Finished difference Result 147 states and 198 transitions. [2020-07-17 17:24:34,338 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 17:24:34,339 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 43 [2020-07-17 17:24:34,340 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:24:34,351 INFO L225 Difference]: With dead ends: 147 [2020-07-17 17:24:34,351 INFO L226 Difference]: Without dead ends: 96 [2020-07-17 17:24:34,355 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:34,372 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 96 states. [2020-07-17 17:24:34,405 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 96 to 94. [2020-07-17 17:24:34,406 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-07-17 17:24:34,409 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 120 transitions. [2020-07-17 17:24:34,411 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 120 transitions. Word has length 43 [2020-07-17 17:24:34,412 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:24:34,412 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 120 transitions. [2020-07-17 17:24:34,412 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 17:24:34,413 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 120 transitions. [2020-07-17 17:24:34,414 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-17 17:24:34,415 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:24:34,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:24:34,415 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-17 17:24:34,416 INFO L427 AbstractCegarLoop]: === Iteration 2 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:24:34,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:24:34,416 INFO L82 PathProgramCache]: Analyzing trace with hash 1252462105, now seen corresponding path program 1 times [2020-07-17 17:24:34,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:24:34,417 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [821527505] [2020-07-17 17:24:34,417 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:24:34,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:34,474 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:34,481 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:24:34,481 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [821527505] [2020-07-17 17:24:34,482 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:24:34,482 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 17:24:34,482 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [193605807] [2020-07-17 17:24:34,484 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 17:24:34,485 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:24:34,485 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 17:24:34,485 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:34,486 INFO L87 Difference]: Start difference. First operand 94 states and 120 transitions. Second operand 3 states. [2020-07-17 17:24:34,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:24:34,535 INFO L93 Difference]: Finished difference Result 116 states and 148 transitions. [2020-07-17 17:24:34,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 17:24:34,537 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-07-17 17:24:34,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:24:34,539 INFO L225 Difference]: With dead ends: 116 [2020-07-17 17:24:34,540 INFO L226 Difference]: Without dead ends: 114 [2020-07-17 17:24:34,541 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:34,542 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 114 states. [2020-07-17 17:24:34,559 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 114 to 94. [2020-07-17 17:24:34,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 94 states. [2020-07-17 17:24:34,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 94 states to 94 states and 119 transitions. [2020-07-17 17:24:34,562 INFO L78 Accepts]: Start accepts. Automaton has 94 states and 119 transitions. Word has length 44 [2020-07-17 17:24:34,562 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:24:34,563 INFO L479 AbstractCegarLoop]: Abstraction has 94 states and 119 transitions. [2020-07-17 17:24:34,563 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 17:24:34,563 INFO L276 IsEmpty]: Start isEmpty. Operand 94 states and 119 transitions. [2020-07-17 17:24:34,564 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 45 [2020-07-17 17:24:34,565 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:24:34,565 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:24:34,565 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-17 17:24:34,565 INFO L427 AbstractCegarLoop]: === Iteration 3 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:24:34,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:24:34,566 INFO L82 PathProgramCache]: Analyzing trace with hash 755286414, now seen corresponding path program 1 times [2020-07-17 17:24:34,566 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:24:34,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1045570618] [2020-07-17 17:24:34,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:24:34,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:34,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:34,620 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:24:34,621 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1045570618] [2020-07-17 17:24:34,621 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:24:34,621 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 17:24:34,621 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1815319544] [2020-07-17 17:24:34,622 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 17:24:34,622 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:24:34,622 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 17:24:34,623 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:34,623 INFO L87 Difference]: Start difference. First operand 94 states and 119 transitions. Second operand 3 states. [2020-07-17 17:24:34,668 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:24:34,668 INFO L93 Difference]: Finished difference Result 226 states and 299 transitions. [2020-07-17 17:24:34,669 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 17:24:34,669 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 44 [2020-07-17 17:24:34,669 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:24:34,671 INFO L225 Difference]: With dead ends: 226 [2020-07-17 17:24:34,671 INFO L226 Difference]: Without dead ends: 157 [2020-07-17 17:24:34,672 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:34,673 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 157 states. [2020-07-17 17:24:34,697 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 157 to 155. [2020-07-17 17:24:34,697 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-07-17 17:24:34,700 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 200 transitions. [2020-07-17 17:24:34,701 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 200 transitions. Word has length 44 [2020-07-17 17:24:34,701 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:24:34,701 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 200 transitions. [2020-07-17 17:24:34,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 17:24:34,702 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 200 transitions. [2020-07-17 17:24:34,703 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-17 17:24:34,703 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:24:34,704 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:24:34,704 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-17 17:24:34,704 INFO L427 AbstractCegarLoop]: === Iteration 4 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:24:34,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:24:34,705 INFO L82 PathProgramCache]: Analyzing trace with hash -1863120818, now seen corresponding path program 1 times [2020-07-17 17:24:34,705 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:24:34,705 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1440816796] [2020-07-17 17:24:34,705 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:24:34,727 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:34,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:34,778 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:24:34,778 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1440816796] [2020-07-17 17:24:34,778 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:24:34,779 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 17:24:34,779 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1715993679] [2020-07-17 17:24:34,780 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 17:24:34,780 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:24:34,780 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 17:24:34,781 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:34,781 INFO L87 Difference]: Start difference. First operand 155 states and 200 transitions. Second operand 3 states. [2020-07-17 17:24:34,820 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:24:34,821 INFO L93 Difference]: Finished difference Result 191 states and 246 transitions. [2020-07-17 17:24:34,821 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 17:24:34,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-07-17 17:24:34,822 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:24:34,824 INFO L225 Difference]: With dead ends: 191 [2020-07-17 17:24:34,824 INFO L226 Difference]: Without dead ends: 189 [2020-07-17 17:24:34,825 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:34,826 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 189 states. [2020-07-17 17:24:34,851 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 189 to 155. [2020-07-17 17:24:34,852 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 155 states. [2020-07-17 17:24:34,854 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 155 states to 155 states and 198 transitions. [2020-07-17 17:24:34,854 INFO L78 Accepts]: Start accepts. Automaton has 155 states and 198 transitions. Word has length 45 [2020-07-17 17:24:34,855 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:24:34,855 INFO L479 AbstractCegarLoop]: Abstraction has 155 states and 198 transitions. [2020-07-17 17:24:34,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 17:24:34,855 INFO L276 IsEmpty]: Start isEmpty. Operand 155 states and 198 transitions. [2020-07-17 17:24:34,857 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2020-07-17 17:24:34,857 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:24:34,857 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:24:34,858 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-17 17:24:34,858 INFO L427 AbstractCegarLoop]: === Iteration 5 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:24:34,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:24:34,858 INFO L82 PathProgramCache]: Analyzing trace with hash 1939288392, now seen corresponding path program 1 times [2020-07-17 17:24:34,859 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:24:34,859 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [567678686] [2020-07-17 17:24:34,859 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:24:34,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:34,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:34,900 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:24:34,900 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [567678686] [2020-07-17 17:24:34,901 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:24:34,901 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 17:24:34,901 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1242098177] [2020-07-17 17:24:34,902 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 17:24:34,902 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:24:34,902 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 17:24:34,903 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:34,903 INFO L87 Difference]: Start difference. First operand 155 states and 198 transitions. Second operand 3 states. [2020-07-17 17:24:34,997 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:24:34,998 INFO L93 Difference]: Finished difference Result 403 states and 528 transitions. [2020-07-17 17:24:34,998 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 17:24:34,999 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 45 [2020-07-17 17:24:34,999 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:24:35,001 INFO L225 Difference]: With dead ends: 403 [2020-07-17 17:24:35,001 INFO L226 Difference]: Without dead ends: 273 [2020-07-17 17:24:35,003 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:35,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 273 states. [2020-07-17 17:24:35,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 273 to 271. [2020-07-17 17:24:35,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 271 states. [2020-07-17 17:24:35,038 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 271 states to 271 states and 346 transitions. [2020-07-17 17:24:35,039 INFO L78 Accepts]: Start accepts. Automaton has 271 states and 346 transitions. Word has length 45 [2020-07-17 17:24:35,039 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:24:35,039 INFO L479 AbstractCegarLoop]: Abstraction has 271 states and 346 transitions. [2020-07-17 17:24:35,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 17:24:35,040 INFO L276 IsEmpty]: Start isEmpty. Operand 271 states and 346 transitions. [2020-07-17 17:24:35,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-17 17:24:35,042 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:24:35,042 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:24:35,042 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-17 17:24:35,042 INFO L427 AbstractCegarLoop]: === Iteration 6 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:24:35,043 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:24:35,043 INFO L82 PathProgramCache]: Analyzing trace with hash -11355582, now seen corresponding path program 1 times [2020-07-17 17:24:35,043 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:24:35,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282879738] [2020-07-17 17:24:35,044 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:24:35,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:35,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:35,078 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:24:35,078 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282879738] [2020-07-17 17:24:35,079 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:24:35,079 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 17:24:35,079 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [920143431] [2020-07-17 17:24:35,080 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 17:24:35,080 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:24:35,080 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 17:24:35,080 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:35,081 INFO L87 Difference]: Start difference. First operand 271 states and 346 transitions. Second operand 3 states. [2020-07-17 17:24:35,137 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:24:35,137 INFO L93 Difference]: Finished difference Result 739 states and 956 transitions. [2020-07-17 17:24:35,138 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 17:24:35,138 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-17 17:24:35,139 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:24:35,141 INFO L225 Difference]: With dead ends: 739 [2020-07-17 17:24:35,142 INFO L226 Difference]: Without dead ends: 493 [2020-07-17 17:24:35,144 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:35,145 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 493 states. [2020-07-17 17:24:35,190 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 493 to 491. [2020-07-17 17:24:35,190 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-07-17 17:24:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 618 transitions. [2020-07-17 17:24:35,195 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 618 transitions. Word has length 46 [2020-07-17 17:24:35,195 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:24:35,196 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 618 transitions. [2020-07-17 17:24:35,196 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 17:24:35,196 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 618 transitions. [2020-07-17 17:24:35,198 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2020-07-17 17:24:35,198 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:24:35,199 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:24:35,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-17 17:24:35,199 INFO L427 AbstractCegarLoop]: === Iteration 7 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:24:35,199 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:24:35,200 INFO L82 PathProgramCache]: Analyzing trace with hash 338056749, now seen corresponding path program 1 times [2020-07-17 17:24:35,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:24:35,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [942385242] [2020-07-17 17:24:35,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:24:35,218 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:35,266 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:35,271 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:24:35,272 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [942385242] [2020-07-17 17:24:35,272 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:24:35,272 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 17:24:35,273 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1487186278] [2020-07-17 17:24:35,275 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 17:24:35,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:24:35,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 17:24:35,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:35,277 INFO L87 Difference]: Start difference. First operand 491 states and 618 transitions. Second operand 3 states. [2020-07-17 17:24:35,338 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:24:35,339 INFO L93 Difference]: Finished difference Result 599 states and 748 transitions. [2020-07-17 17:24:35,339 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 17:24:35,340 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 46 [2020-07-17 17:24:35,342 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:24:35,345 INFO L225 Difference]: With dead ends: 599 [2020-07-17 17:24:35,346 INFO L226 Difference]: Without dead ends: 597 [2020-07-17 17:24:35,347 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:35,349 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 597 states. [2020-07-17 17:24:35,388 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 597 to 491. [2020-07-17 17:24:35,389 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-07-17 17:24:35,391 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 610 transitions. [2020-07-17 17:24:35,391 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 610 transitions. Word has length 46 [2020-07-17 17:24:35,393 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:24:35,393 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 610 transitions. [2020-07-17 17:24:35,393 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 17:24:35,393 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 610 transitions. [2020-07-17 17:24:35,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-17 17:24:35,397 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:24:35,398 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:24:35,398 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-17 17:24:35,398 INFO L427 AbstractCegarLoop]: === Iteration 8 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:24:35,398 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:24:35,399 INFO L82 PathProgramCache]: Analyzing trace with hash -144915038, now seen corresponding path program 1 times [2020-07-17 17:24:35,399 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:24:35,400 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1405455668] [2020-07-17 17:24:35,401 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:24:35,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:35,468 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:35,473 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:24:35,473 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1405455668] [2020-07-17 17:24:35,473 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:24:35,474 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 17:24:35,474 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [50590391] [2020-07-17 17:24:35,474 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 17:24:35,475 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:24:35,475 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 17:24:35,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:35,475 INFO L87 Difference]: Start difference. First operand 491 states and 610 transitions. Second operand 3 states. [2020-07-17 17:24:35,536 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:24:35,537 INFO L93 Difference]: Finished difference Result 591 states and 724 transitions. [2020-07-17 17:24:35,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 17:24:35,538 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-17 17:24:35,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:24:35,541 INFO L225 Difference]: With dead ends: 591 [2020-07-17 17:24:35,541 INFO L226 Difference]: Without dead ends: 589 [2020-07-17 17:24:35,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:35,543 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 589 states. [2020-07-17 17:24:35,588 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 589 to 491. [2020-07-17 17:24:35,589 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-07-17 17:24:35,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 602 transitions. [2020-07-17 17:24:35,592 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 602 transitions. Word has length 47 [2020-07-17 17:24:35,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:24:35,593 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 602 transitions. [2020-07-17 17:24:35,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 17:24:35,594 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 602 transitions. [2020-07-17 17:24:35,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2020-07-17 17:24:35,597 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:24:35,597 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:24:35,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-17 17:24:35,598 INFO L427 AbstractCegarLoop]: === Iteration 9 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:24:35,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:24:35,598 INFO L82 PathProgramCache]: Analyzing trace with hash -351776260, now seen corresponding path program 1 times [2020-07-17 17:24:35,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:24:35,599 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1000585414] [2020-07-17 17:24:35,599 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:24:35,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:35,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:35,670 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:24:35,671 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1000585414] [2020-07-17 17:24:35,672 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:24:35,672 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 17:24:35,674 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994091209] [2020-07-17 17:24:35,676 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 17:24:35,677 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:24:35,677 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 17:24:35,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:35,678 INFO L87 Difference]: Start difference. First operand 491 states and 602 transitions. Second operand 3 states. [2020-07-17 17:24:35,779 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:24:35,779 INFO L93 Difference]: Finished difference Result 1373 states and 1691 transitions. [2020-07-17 17:24:35,780 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 17:24:35,780 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2020-07-17 17:24:35,780 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:24:35,783 INFO L225 Difference]: With dead ends: 1373 [2020-07-17 17:24:35,783 INFO L226 Difference]: Without dead ends: 491 [2020-07-17 17:24:35,786 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:35,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 491 states. [2020-07-17 17:24:35,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 491 to 491. [2020-07-17 17:24:35,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 491 states. [2020-07-17 17:24:35,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 491 states to 491 states and 570 transitions. [2020-07-17 17:24:35,824 INFO L78 Accepts]: Start accepts. Automaton has 491 states and 570 transitions. Word has length 47 [2020-07-17 17:24:35,824 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:24:35,824 INFO L479 AbstractCegarLoop]: Abstraction has 491 states and 570 transitions. [2020-07-17 17:24:35,825 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 17:24:35,825 INFO L276 IsEmpty]: Start isEmpty. Operand 491 states and 570 transitions. [2020-07-17 17:24:35,826 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2020-07-17 17:24:35,826 INFO L414 BasicCegarLoop]: Found error trace [2020-07-17 17:24:35,826 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-17 17:24:35,826 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-07-17 17:24:35,826 INFO L427 AbstractCegarLoop]: === Iteration 10 === [mainErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-17 17:24:35,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-17 17:24:35,827 INFO L82 PathProgramCache]: Analyzing trace with hash 2062829121, now seen corresponding path program 1 times [2020-07-17 17:24:35,827 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-17 17:24:35,827 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1762440313] [2020-07-17 17:24:35,828 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-17 17:24:35,834 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:35,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-17 17:24:35,852 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-17 17:24:35,852 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1762440313] [2020-07-17 17:24:35,852 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-17 17:24:35,853 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-17 17:24:35,853 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [284586648] [2020-07-17 17:24:35,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-17 17:24:35,854 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-17 17:24:35,854 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-17 17:24:35,854 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:35,854 INFO L87 Difference]: Start difference. First operand 491 states and 570 transitions. Second operand 3 states. [2020-07-17 17:24:35,893 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-17 17:24:35,894 INFO L93 Difference]: Finished difference Result 491 states and 570 transitions. [2020-07-17 17:24:35,894 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-17 17:24:35,894 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 48 [2020-07-17 17:24:35,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-17 17:24:35,895 INFO L225 Difference]: With dead ends: 491 [2020-07-17 17:24:35,895 INFO L226 Difference]: Without dead ends: 0 [2020-07-17 17:24:35,897 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-17 17:24:35,897 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-17 17:24:35,897 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-17 17:24:35,897 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-17 17:24:35,897 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-17 17:24:35,898 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 48 [2020-07-17 17:24:35,898 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-17 17:24:35,898 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-17 17:24:35,898 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-17 17:24:35,898 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-17 17:24:35,898 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-17 17:24:35,899 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-07-17 17:24:35,901 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-07-17 17:24:36,431 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 23 [2020-07-17 17:24:36,720 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-17 17:24:36,916 WARN L193 SmtUtils]: Spent 186.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-17 17:24:37,334 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-17 17:24:37,647 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 35 [2020-07-17 17:24:37,812 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 37 [2020-07-17 17:24:38,193 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 55 [2020-07-17 17:24:38,291 INFO L271 CegarLoopResult]: At program point ULTIMATE.initFINAL(line -1) the Hoare annotation is: true [2020-07-17 17:24:38,292 INFO L271 CegarLoopResult]: At program point ULTIMATE.initEXIT(line -1) the Hoare annotation is: true [2020-07-17 17:24:38,292 INFO L271 CegarLoopResult]: At program point ULTIMATE.startEXIT(line -1) the Hoare annotation is: true [2020-07-17 17:24:38,292 INFO L271 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: true [2020-07-17 17:24:38,292 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-07-17 17:24:38,293 INFO L271 CegarLoopResult]: At program point ULTIMATE.startFINAL(line -1) the Hoare annotation is: true [2020-07-17 17:24:38,293 INFO L271 CegarLoopResult]: At program point mainEXIT(lines 4 93) the Hoare annotation is: true [2020-07-17 17:24:38,293 INFO L264 CegarLoopResult]: At program point L85(line 85) the Hoare annotation is: (= 1 main_~lk5~0) [2020-07-17 17:24:38,293 INFO L271 CegarLoopResult]: At program point L19(line 19) the Hoare annotation is: true [2020-07-17 17:24:38,295 INFO L264 CegarLoopResult]: At program point L69(line 69) the Hoare annotation is: (let ((.cse4 (= 0 main_~p3~0)) (.cse3 (= 1 main_~lk4~0)) (.cse2 (= 0 main_~p5~0)) (.cse0 (= 1 main_~lk2~0)) (.cse5 (= 0 main_~p4~0)) (.cse1 (= 1 main_~lk3~0)) (.cse6 (= 1 main_~lk5~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse6) (and .cse0 .cse1 .cse6 .cse3) (and .cse4 .cse0 .cse5 .cse2) (and .cse4 .cse0 .cse6 .cse3) (and .cse4 .cse0 .cse2 .cse3) (and .cse0 .cse5 .cse1 .cse2) (and .cse0 .cse5 .cse1 .cse6))) [2020-07-17 17:24:38,295 INFO L264 CegarLoopResult]: At program point L53-1(lines 24 88) the Hoare annotation is: (let ((.cse7 (= 0 main_~p2~0)) (.cse4 (= 0 main_~p3~0)) (.cse2 (= 0 main_~p1~0)) (.cse3 (= 1 main_~lk4~0)) (.cse0 (= 1 main_~lk2~0)) (.cse5 (= 0 main_~p4~0)) (.cse1 (= 1 main_~lk3~0)) (.cse6 (= 1 main_~lk1~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse6) (and .cse7 .cse1 .cse6 .cse3) (and .cse5 .cse7 .cse1 .cse6) (and .cse4 .cse0 .cse6 .cse3) (and .cse4 .cse7 .cse6 .cse3) (and .cse7 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse7 .cse6) (and .cse5 .cse7 .cse1 .cse2) (and .cse4 .cse0 .cse5 .cse2) (and .cse4 .cse5 .cse7 .cse2) (and .cse4 .cse7 .cse2 .cse3) (and .cse4 .cse0 .cse2 .cse3) (and .cse0 .cse5 .cse1 .cse2) (and .cse0 .cse1 .cse6 .cse3) (and .cse0 .cse5 .cse1 .cse6))) [2020-07-17 17:24:38,295 INFO L264 CegarLoopResult]: At program point L78-1(lines 24 88) the Hoare annotation is: (or (= 0 main_~p5~0) (= 1 main_~lk5~0)) [2020-07-17 17:24:38,296 INFO L271 CegarLoopResult]: At program point L12(line 12) the Hoare annotation is: true [2020-07-17 17:24:38,296 INFO L264 CegarLoopResult]: At program point L45-1(lines 24 88) the Hoare annotation is: (let ((.cse0 (= 0 main_~p2~0)) (.cse1 (= 0 main_~p1~0)) (.cse3 (= 1 main_~lk2~0)) (.cse2 (= 1 main_~lk1~0))) (or (and .cse0 .cse1) (and .cse0 .cse2) (and .cse3 .cse1) (and .cse3 .cse2))) [2020-07-17 17:24:38,296 INFO L271 CegarLoopResult]: At program point L12-1(line 12) the Hoare annotation is: true [2020-07-17 17:24:38,299 INFO L271 CegarLoopResult]: At program point L12-2(line 12) the Hoare annotation is: true [2020-07-17 17:24:38,299 INFO L264 CegarLoopResult]: At program point L70(line 70) the Hoare annotation is: (let ((.cse4 (= 0 main_~p3~0)) (.cse3 (= 1 main_~lk4~0)) (.cse2 (= 0 main_~p5~0)) (.cse0 (= 1 main_~lk2~0)) (.cse5 (= 0 main_~p4~0)) (.cse1 (= 1 main_~lk3~0)) (.cse6 (= 1 main_~lk5~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse6) (and .cse0 .cse1 .cse6 .cse3) (and .cse4 .cse0 .cse5 .cse2) (and .cse4 .cse0 .cse6 .cse3) (and .cse4 .cse0 .cse2 .cse3) (and .cse0 .cse5 .cse1 .cse2) (and .cse0 .cse5 .cse1 .cse6))) [2020-07-17 17:24:38,299 INFO L271 CegarLoopResult]: At program point L37(line 37) the Hoare annotation is: true [2020-07-17 17:24:38,299 INFO L271 CegarLoopResult]: At program point L29(line 29) the Hoare annotation is: true [2020-07-17 17:24:38,300 INFO L264 CegarLoopResult]: At program point L54(line 54) the Hoare annotation is: (let ((.cse5 (= 0 main_~p1~0)) (.cse3 (= 0 main_~p3~0)) (.cse0 (= 1 main_~lk2~0)) (.cse4 (= 0 main_~p2~0)) (.cse1 (= 1 main_~lk3~0)) (.cse2 (= 1 main_~lk1~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse2) (and .cse4 .cse1 .cse5) (and .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse5) (and .cse3 .cse0 .cse5) (and .cse3 .cse0 .cse2) (and .cse4 .cse1 .cse2))) [2020-07-17 17:24:38,300 INFO L264 CegarLoopResult]: At program point L79(line 79) the Hoare annotation is: (let ((.cse0 (= 1 main_~lk4~0))) (or (and (= 1 main_~lk5~0) .cse0) (and (= 0 main_~p5~0) .cse0))) [2020-07-17 17:24:38,300 INFO L264 CegarLoopResult]: At program point L46(line 46) the Hoare annotation is: (or (= 0 main_~p1~0) (= 1 main_~lk1~0)) [2020-07-17 17:24:38,300 INFO L271 CegarLoopResult]: At program point L13(line 13) the Hoare annotation is: true [2020-07-17 17:24:38,300 INFO L271 CegarLoopResult]: At program point mainFINAL(lines 4 93) the Hoare annotation is: true [2020-07-17 17:24:38,301 INFO L264 CegarLoopResult]: At program point mainErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) the Hoare annotation is: false [2020-07-17 17:24:38,301 INFO L264 CegarLoopResult]: At program point L63-1(lines 24 88) the Hoare annotation is: (let ((.cse3 (= 0 main_~p5~0)) (.cse4 (= 1 main_~lk4~0)) (.cse0 (= 0 main_~p3~0)) (.cse2 (= 0 main_~p2~0)) (.cse6 (= 1 main_~lk2~0)) (.cse1 (= 0 main_~p4~0)) (.cse7 (= 1 main_~lk3~0)) (.cse5 (= 1 main_~lk5~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse0 .cse2 .cse3 .cse4) (and .cse0 .cse2 .cse5 .cse4) (and .cse0 .cse6 .cse1 .cse5) (and .cse1 .cse2 .cse7 .cse3) (and .cse0 .cse6 .cse1 .cse3) (and .cse0 .cse6 .cse5 .cse4) (and .cse2 .cse7 .cse5 .cse4) (and .cse6 .cse7 .cse3 .cse4) (and .cse2 .cse7 .cse3 .cse4) (and .cse1 .cse2 .cse7 .cse5) (and .cse6 .cse7 .cse5 .cse4) (and .cse6 .cse1 .cse7 .cse3) (and .cse0 .cse6 .cse3 .cse4) (and .cse0 .cse1 .cse2 .cse5) (and .cse6 .cse1 .cse7 .cse5))) [2020-07-17 17:24:38,301 INFO L271 CegarLoopResult]: At program point mainENTRY(lines 4 93) the Hoare annotation is: true [2020-07-17 17:24:38,301 INFO L271 CegarLoopResult]: At program point L22(line 22) the Hoare annotation is: true [2020-07-17 17:24:38,301 INFO L264 CegarLoopResult]: At program point L80(line 80) the Hoare annotation is: (let ((.cse0 (= 1 main_~lk4~0))) (or (and (= 1 main_~lk5~0) .cse0) (and (= 0 main_~p5~0) .cse0))) [2020-07-17 17:24:38,302 INFO L271 CegarLoopResult]: At program point L6(line 6) the Hoare annotation is: true [2020-07-17 17:24:38,302 INFO L271 CegarLoopResult]: At program point L6-1(line 6) the Hoare annotation is: true [2020-07-17 17:24:38,302 INFO L264 CegarLoopResult]: At program point L64(line 64) the Hoare annotation is: (let ((.cse5 (= 1 main_~lk2~0)) (.cse1 (= 0 main_~p4~0)) (.cse7 (= 1 main_~lk5~0)) (.cse6 (= 1 main_~lk3~0)) (.cse0 (= 0 main_~p3~0)) (.cse2 (= 0 main_~p2~0)) (.cse3 (= 0 main_~p5~0)) (.cse4 (= 1 main_~lk1~0)) (.cse8 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse6 .cse7 .cse4) (and .cse0 .cse5 .cse1 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse7 .cse4) (and .cse0 .cse2 .cse7 .cse4 .cse8) (and .cse0 .cse1 .cse2 .cse7 .cse4) (and .cse0 .cse5 .cse3 .cse4 .cse8) (and .cse5 .cse6 .cse7 .cse4 .cse8) (and .cse1 .cse2 .cse6 .cse3 .cse4) (and .cse2 .cse6 .cse7 .cse4 .cse8) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse5 .cse6 .cse3 .cse4 .cse8) (and .cse0 .cse5 .cse7 .cse4 .cse8) (and .cse1 .cse2 .cse6 .cse7 .cse4) (and .cse2 .cse6 .cse3 .cse4 .cse8) (and .cse0 .cse2 .cse3 .cse4 .cse8))) [2020-07-17 17:24:38,302 INFO L271 CegarLoopResult]: At program point L31(line 31) the Hoare annotation is: true [2020-07-17 17:24:38,302 INFO L271 CegarLoopResult]: At program point L89(lines 5 93) the Hoare annotation is: true [2020-07-17 17:24:38,302 INFO L271 CegarLoopResult]: At program point L15(line 15) the Hoare annotation is: true [2020-07-17 17:24:38,303 INFO L271 CegarLoopResult]: At program point L15-1(line 15) the Hoare annotation is: true [2020-07-17 17:24:38,303 INFO L271 CegarLoopResult]: At program point L15-2(line 15) the Hoare annotation is: true [2020-07-17 17:24:38,303 INFO L264 CegarLoopResult]: At program point L73-1(lines 24 88) the Hoare annotation is: (let ((.cse1 (= 1 main_~lk5~0)) (.cse2 (= 1 main_~lk4~0)) (.cse0 (= 0 main_~p4~0)) (.cse3 (= 0 main_~p5~0))) (or (and .cse0 .cse1) (and .cse1 .cse2) (and .cse3 .cse2) (and .cse0 .cse3))) [2020-07-17 17:24:38,303 INFO L271 CegarLoopResult]: At program point L7(line 7) the Hoare annotation is: true [2020-07-17 17:24:38,303 INFO L264 CegarLoopResult]: At program point L65(line 65) the Hoare annotation is: (let ((.cse5 (= 1 main_~lk2~0)) (.cse1 (= 0 main_~p4~0)) (.cse7 (= 1 main_~lk5~0)) (.cse6 (= 1 main_~lk3~0)) (.cse0 (= 0 main_~p3~0)) (.cse2 (= 0 main_~p2~0)) (.cse3 (= 0 main_~p5~0)) (.cse4 (= 1 main_~lk1~0)) (.cse8 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse1 .cse6 .cse7 .cse4) (and .cse0 .cse5 .cse1 .cse3 .cse4) (and .cse0 .cse5 .cse1 .cse7 .cse4) (and .cse0 .cse2 .cse7 .cse4 .cse8) (and .cse0 .cse1 .cse2 .cse7 .cse4) (and .cse5 .cse6 .cse7 .cse4 .cse8) (and .cse0 .cse5 .cse3 .cse4 .cse8) (and .cse1 .cse2 .cse6 .cse3 .cse4) (and .cse2 .cse6 .cse7 .cse4 .cse8) (and .cse5 .cse1 .cse6 .cse3 .cse4) (and .cse5 .cse6 .cse3 .cse4 .cse8) (and .cse0 .cse5 .cse7 .cse4 .cse8) (and .cse1 .cse2 .cse6 .cse7 .cse4) (and .cse2 .cse6 .cse3 .cse4 .cse8) (and .cse0 .cse2 .cse3 .cse4 .cse8))) [2020-07-17 17:24:38,304 INFO L264 CegarLoopResult]: At program point L57-1(lines 24 88) the Hoare annotation is: (let ((.cse1 (= 0 main_~p4~0)) (.cse0 (= 1 main_~lk2~0)) (.cse3 (= 1 main_~lk5~0)) (.cse5 (= 0 main_~p3~0)) (.cse9 (= 0 main_~p1~0)) (.cse7 (= 0 main_~p2~0)) (.cse2 (= 1 main_~lk3~0)) (.cse6 (= 0 main_~p5~0)) (.cse4 (= 1 main_~lk1~0)) (.cse8 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse1 .cse6 .cse4) (and .cse5 .cse7 .cse3 .cse4 .cse8) (and .cse7 .cse2 .cse9 .cse3 .cse8) (and .cse0 .cse1 .cse2 .cse9 .cse3) (and .cse1 .cse7 .cse2 .cse6 .cse4) (and .cse5 .cse7 .cse9 .cse3 .cse8) (and .cse7 .cse2 .cse3 .cse4 .cse8) (and .cse5 .cse0 .cse1 .cse9 .cse3) (and .cse0 .cse2 .cse6 .cse4 .cse8) (and .cse1 .cse7 .cse2 .cse3 .cse4) (and .cse5 .cse0 .cse9 .cse3 .cse8) (and .cse5 .cse7 .cse6 .cse4 .cse8) (and .cse5 .cse0 .cse1 .cse6 .cse9) (and .cse5 .cse1 .cse7 .cse6 .cse4) (and .cse0 .cse2 .cse6 .cse9 .cse8) (and .cse5 .cse0 .cse1 .cse3 .cse4) (and .cse1 .cse7 .cse2 .cse9 .cse3) (and .cse5 .cse1 .cse7 .cse3 .cse4) (and .cse1 .cse7 .cse2 .cse6 .cse9) (and .cse0 .cse2 .cse3 .cse4 .cse8) (and .cse7 .cse2 .cse6 .cse9 .cse8) (and .cse5 .cse0 .cse6 .cse4 .cse8) (and .cse5 .cse1 .cse7 .cse9 .cse3) (and .cse0 .cse1 .cse2 .cse6 .cse9) (and .cse0 .cse2 .cse9 .cse3 .cse8) (and .cse5 .cse0 .cse6 .cse9 .cse8) (and .cse0 .cse1 .cse2 .cse6 .cse4) (and .cse5 .cse1 .cse7 .cse6 .cse9) (and .cse5 .cse0 .cse3 .cse4 .cse8) (and .cse5 .cse7 .cse6 .cse9 .cse8) (and .cse7 .cse2 .cse6 .cse4 .cse8))) [2020-07-17 17:24:38,304 INFO L271 CegarLoopResult]: At program point L16(line 16) the Hoare annotation is: true [2020-07-17 17:24:38,304 INFO L264 CegarLoopResult]: At program point L49-1(lines 24 88) the Hoare annotation is: (let ((.cse3 (= 0 main_~p3~0)) (.cse0 (= 1 main_~lk2~0)) (.cse5 (= 0 main_~p1~0)) (.cse4 (= 0 main_~p2~0)) (.cse1 (= 1 main_~lk3~0)) (.cse2 (= 1 main_~lk1~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse2) (and .cse4 .cse1 .cse5) (and .cse3 .cse4 .cse5) (and .cse0 .cse1 .cse5) (and .cse3 .cse0 .cse2) (and .cse3 .cse0 .cse5) (and .cse4 .cse1 .cse2))) [2020-07-17 17:24:38,305 INFO L264 CegarLoopResult]: At program point L74(line 74) the Hoare annotation is: (let ((.cse0 (= 0 main_~p4~0)) (.cse3 (= 0 main_~p5~0)) (.cse1 (= 1 main_~lk3~0)) (.cse2 (= 1 main_~lk5~0)) (.cse4 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse3) (and .cse1 .cse2 .cse4))) [2020-07-17 17:24:38,305 INFO L271 CegarLoopResult]: At program point L41(lines 41 43) the Hoare annotation is: true [2020-07-17 17:24:38,307 INFO L264 CegarLoopResult]: At program point L41-2(lines 24 88) the Hoare annotation is: (or (= 0 main_~p1~0) (= 1 main_~lk1~0)) [2020-07-17 17:24:38,307 INFO L271 CegarLoopResult]: At program point L33(line 33) the Hoare annotation is: true [2020-07-17 17:24:38,307 INFO L264 CegarLoopResult]: At program point L58(line 58) the Hoare annotation is: (let ((.cse7 (= 0 main_~p2~0)) (.cse4 (= 0 main_~p3~0)) (.cse2 (= 0 main_~p1~0)) (.cse5 (= 0 main_~p4~0)) (.cse0 (= 1 main_~lk2~0)) (.cse1 (= 1 main_~lk3~0)) (.cse6 (= 1 main_~lk1~0)) (.cse3 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2 .cse3) (and .cse4 .cse0 .cse5 .cse6) (and .cse7 .cse1 .cse6 .cse3) (and .cse5 .cse7 .cse1 .cse6) (and .cse4 .cse0 .cse6 .cse3) (and .cse4 .cse7 .cse6 .cse3) (and .cse7 .cse1 .cse2 .cse3) (and .cse4 .cse5 .cse7 .cse6) (and .cse5 .cse7 .cse1 .cse2) (and .cse4 .cse0 .cse5 .cse2) (and .cse4 .cse5 .cse7 .cse2) (and .cse4 .cse7 .cse2 .cse3) (and .cse4 .cse0 .cse2 .cse3) (and .cse0 .cse5 .cse1 .cse2) (and .cse0 .cse5 .cse1 .cse6) (and .cse0 .cse1 .cse6 .cse3))) [2020-07-17 17:24:38,307 INFO L271 CegarLoopResult]: At program point L25(line 25) the Hoare annotation is: true [2020-07-17 17:24:38,307 INFO L271 CegarLoopResult]: At program point L25-1(line 25) the Hoare annotation is: true [2020-07-17 17:24:38,308 INFO L271 CegarLoopResult]: At program point L25-2(line 25) the Hoare annotation is: true [2020-07-17 17:24:38,308 INFO L264 CegarLoopResult]: At program point L50(line 50) the Hoare annotation is: (let ((.cse0 (= 0 main_~p2~0)) (.cse1 (= 0 main_~p1~0)) (.cse3 (= 1 main_~lk2~0)) (.cse2 (= 1 main_~lk1~0))) (or (and .cse0 .cse1) (and .cse0 .cse2) (and .cse3 .cse1) (and .cse3 .cse2))) [2020-07-17 17:24:38,308 INFO L271 CegarLoopResult]: At program point L83-1(lines 24 88) the Hoare annotation is: true [2020-07-17 17:24:38,308 INFO L264 CegarLoopResult]: At program point L75(line 75) the Hoare annotation is: (let ((.cse0 (= 0 main_~p4~0)) (.cse3 (= 0 main_~p5~0)) (.cse1 (= 1 main_~lk3~0)) (.cse2 (= 1 main_~lk5~0)) (.cse4 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2) (and .cse1 .cse3 .cse4) (and .cse0 .cse1 .cse3) (and .cse1 .cse2 .cse4))) [2020-07-17 17:24:38,308 INFO L271 CegarLoopResult]: At program point L42(line 42) the Hoare annotation is: true [2020-07-17 17:24:38,309 INFO L271 CegarLoopResult]: At program point L9(line 9) the Hoare annotation is: true [2020-07-17 17:24:38,309 INFO L271 CegarLoopResult]: At program point L9-1(line 9) the Hoare annotation is: true [2020-07-17 17:24:38,309 INFO L271 CegarLoopResult]: At program point L9-2(line 9) the Hoare annotation is: true [2020-07-17 17:24:38,309 INFO L264 CegarLoopResult]: At program point L92(line 92) the Hoare annotation is: false [2020-07-17 17:24:38,309 INFO L271 CegarLoopResult]: At program point L26(lines 26 28) the Hoare annotation is: true [2020-07-17 17:24:38,309 INFO L264 CegarLoopResult]: At program point L84(line 84) the Hoare annotation is: (= 1 main_~lk5~0) [2020-07-17 17:24:38,310 INFO L264 CegarLoopResult]: At program point L84-1(lines 5 93) the Hoare annotation is: false [2020-07-17 17:24:38,310 INFO L271 CegarLoopResult]: At program point L18(line 18) the Hoare annotation is: true [2020-07-17 17:24:38,310 INFO L271 CegarLoopResult]: At program point L18-1(line 18) the Hoare annotation is: true [2020-07-17 17:24:38,310 INFO L271 CegarLoopResult]: At program point L18-2(line 18) the Hoare annotation is: true [2020-07-17 17:24:38,310 INFO L271 CegarLoopResult]: At program point L10(line 10) the Hoare annotation is: true [2020-07-17 17:24:38,310 INFO L271 CegarLoopResult]: At program point L35(line 35) the Hoare annotation is: true [2020-07-17 17:24:38,311 INFO L264 CegarLoopResult]: At program point L68-1(lines 24 88) the Hoare annotation is: (let ((.cse0 (= 0 main_~p4~0)) (.cse4 (= 0 main_~p5~0)) (.cse1 (= 1 main_~lk3~0)) (.cse3 (= 0 main_~p3~0)) (.cse2 (= 1 main_~lk5~0)) (.cse5 (= 1 main_~lk4~0))) (or (and .cse0 .cse1 .cse2) (and .cse3 .cse4 .cse5) (and .cse1 .cse4 .cse5) (and .cse3 .cse0 .cse2) (and .cse3 .cse0 .cse4) (and .cse0 .cse1 .cse4) (and .cse1 .cse2 .cse5) (and .cse3 .cse2 .cse5))) [2020-07-17 17:24:38,334 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 17.07 05:24:38 BoogieIcfgContainer [2020-07-17 17:24:38,334 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-17 17:24:38,337 INFO L168 Benchmark]: Toolchain (without parser) took 5305.87 ms. Allocated memory was 135.8 MB in the beginning and 298.3 MB in the end (delta: 162.5 MB). Free memory was 101.2 MB in the beginning and 145.1 MB in the end (delta: -43.9 MB). Peak memory consumption was 129.0 MB. Max. memory is 7.1 GB. [2020-07-17 17:24:38,338 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 135.8 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-17 17:24:38,343 INFO L168 Benchmark]: CACSL2BoogieTranslator took 270.70 ms. Allocated memory is still 135.8 MB. Free memory was 101.0 MB in the beginning and 90.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. [2020-07-17 17:24:38,344 INFO L168 Benchmark]: Boogie Preprocessor took 129.77 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 90.9 MB in the beginning and 178.5 MB in the end (delta: -87.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. [2020-07-17 17:24:38,347 INFO L168 Benchmark]: RCFGBuilder took 455.07 ms. Allocated memory is still 199.8 MB. Free memory was 178.5 MB in the beginning and 160.6 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. [2020-07-17 17:24:38,349 INFO L168 Benchmark]: TraceAbstraction took 4444.15 ms. Allocated memory was 199.8 MB in the beginning and 298.3 MB in the end (delta: 98.6 MB). Free memory was 160.6 MB in the beginning and 145.1 MB in the end (delta: 15.5 MB). Peak memory consumption was 124.5 MB. Max. memory is 7.1 GB. [2020-07-17 17:24:38,357 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 135.8 MB. Free memory was 119.2 MB in the beginning and 119.0 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 270.70 ms. Allocated memory is still 135.8 MB. Free memory was 101.0 MB in the beginning and 90.9 MB in the end (delta: 10.1 MB). Peak memory consumption was 10.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 129.77 ms. Allocated memory was 135.8 MB in the beginning and 199.8 MB in the end (delta: 64.0 MB). Free memory was 90.9 MB in the beginning and 178.5 MB in the end (delta: -87.6 MB). Peak memory consumption was 15.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 455.07 ms. Allocated memory is still 199.8 MB. Free memory was 178.5 MB in the beginning and 160.6 MB in the end (delta: 17.9 MB). Peak memory consumption was 17.9 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4444.15 ms. Allocated memory was 199.8 MB in the beginning and 298.3 MB in the end (delta: 98.6 MB). Free memory was 160.6 MB in the beginning and 145.1 MB in the end (delta: 15.5 MB). Peak memory consumption was 124.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 91]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 24]: Loop Invariant Derived loop invariant: 1 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 0 - InvariantResult [Line: 5]: Loop Invariant Derived loop invariant: 1 - ProcedureContractResult [Line: 4]: Procedure Contract for main Derived contract for procedure main: 1 - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1.9s, OverallIterations: 10, TraceHistogramMax: 1, AutomataDifference: 0.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.3s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 956 SDtfs, 332 SDslu, 668 SDs, 0 SdLazy, 49 SolverSat, 10 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 50 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=491occurred in iteration=6, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 10 MinimizatonAttempts, 266 StatesRemovedByMinimization, 8 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 68 LocationsWithAnnotation, 68 PreInvPairs, 956 NumberOfFragments, 2378 HoareAnnotationTreeSize, 68 FomulaSimplifications, 9164 FormulaSimplificationTreeSizeReduction, 0.4s HoareSimplificationTime, 68 FomulaSimplificationsInter, 0 FormulaSimplificationTreeSizeReductionInter, 1.9s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 455 NumberOfCodeBlocks, 455 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 445 ConstructedInterpolants, 0 QuantifiedInterpolants, 24725 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 10 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...