/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.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem10_label19.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:27:12,463 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:27:12,469 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:27:12,518 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:27:12,520 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:27:12,531 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:27:12,534 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:27:12,536 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:27:12,540 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:27:12,545 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:27:12,547 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:27:12,550 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:27:12,550 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:27:12,554 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:27:12,557 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:27:12,559 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:27:12,561 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:27:12,563 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:27:12,565 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:27:12,574 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:27:12,576 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:27:12,577 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:27:12,578 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:27:12,579 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:27:12,584 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:27:12,584 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:27:12,585 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:27:12,588 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:27:12,589 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:27:12,591 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:27:12,591 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:27:12,592 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:27:12,593 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:27:12,594 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:27:12,596 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:27:12,596 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:27:12,597 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:27:12,597 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:27:12,597 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:27:12,598 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:27:12,601 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:27:12,602 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:27:12,653 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:27:12,653 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:27:12,655 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:27:12,656 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:27:12,656 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:27:12,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:27:12,656 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:27:12,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:27:12,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:27:12,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:27:12,658 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:27:12,658 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:27:12,659 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:27:12,659 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:27:12,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:27:12,660 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:27:12,660 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:27:12,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:27:12,660 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:27:12,661 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:27:12,661 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:27:12,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:27:12,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:27:12,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:27:12,662 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:27:12,662 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:27:12,662 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:27:12,662 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:27:12,662 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:27:12,663 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES 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: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:27:13,108 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:27:13,135 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:27:13,142 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:27:13,144 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:27:13,145 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:27:13,146 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem10_label19.c [2020-09-21 11:27:13,228 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79aa7be39/abfb87e6868f4b99923f5a9f090fb1a2/FLAGf57cda480 [2020-09-21 11:27:13,837 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:27:13,838 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem10_label19.c [2020-09-21 11:27:13,856 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79aa7be39/abfb87e6868f4b99923f5a9f090fb1a2/FLAGf57cda480 [2020-09-21 11:27:14,081 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79aa7be39/abfb87e6868f4b99923f5a9f090fb1a2 [2020-09-21 11:27:14,096 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:27:14,103 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:27:14,104 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:27:14,105 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:27:14,110 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:27:14,111 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:27:14" (1/1) ... [2020-09-21 11:27:14,116 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d064956 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:14, skipping insertion in model container [2020-09-21 11:27:14,116 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:27:14" (1/1) ... [2020-09-21 11:27:14,126 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:27:14,193 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:27:14,739 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:27:14,746 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:27:14,973 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:27:14,994 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:27:14,995 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:14 WrapperNode [2020-09-21 11:27:14,995 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:27:14,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:27:14,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:27:14,996 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:27:15,025 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:14" (1/1) ... [2020-09-21 11:27:15,027 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:14" (1/1) ... [2020-09-21 11:27:15,062 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:14" (1/1) ... [2020-09-21 11:27:15,062 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:14" (1/1) ... [2020-09-21 11:27:15,118 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:14" (1/1) ... [2020-09-21 11:27:15,139 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:14" (1/1) ... [2020-09-21 11:27:15,153 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:14" (1/1) ... [2020-09-21 11:27:15,166 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:27:15,167 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:27:15,167 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:27:15,167 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:27:15,169 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-21 11:27:15,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:27:15,264 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:27:15,265 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:27:15,265 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:27:15,266 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:27:15,266 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:27:15,267 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:27:15,267 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:27:15,268 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:27:15,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:27:15,269 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:27:16,653 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:27:16,654 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:27:16,661 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:27:16 BoogieIcfgContainer [2020-09-21 11:27:16,661 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:27:16,663 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:27:16,663 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:27:16,667 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:27:16,667 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:27:14" (1/3) ... [2020-09-21 11:27:16,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a3dfc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:27:16, skipping insertion in model container [2020-09-21 11:27:16,669 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:27:14" (2/3) ... [2020-09-21 11:27:16,669 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@13a3dfc3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:27:16, skipping insertion in model container [2020-09-21 11:27:16,670 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:27:16" (3/3) ... [2020-09-21 11:27:16,672 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem10_label19.c [2020-09-21 11:27:16,685 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:27:16,696 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:27:16,721 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:27:16,756 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:27:16,756 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:27:16,757 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:27:16,757 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:27:16,757 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:27:16,757 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:27:16,757 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:27:16,757 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:27:16,788 INFO L276 IsEmpty]: Start isEmpty. Operand 215 states. [2020-09-21 11:27:16,798 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 36 [2020-09-21 11:27:16,799 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:16,800 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] [2020-09-21 11:27:16,801 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:16,809 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:16,809 INFO L82 PathProgramCache]: Analyzing trace with hash -1418549242, now seen corresponding path program 1 times [2020-09-21 11:27:16,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:16,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [20643873] [2020-09-21 11:27:16,823 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:17,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:17,105 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:17,106 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:17,106 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:17,106 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:17,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-09-21 11:27:17,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:17,107 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 92 [2020-09-21 11:27:17,107 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:17,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-09-21 11:27:17,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:17,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:17,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:17,309 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:17,309 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:17,309 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:17,310 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:17,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:17,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:17,310 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-21 11:27:17,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:17,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:17,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:17,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:17,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:17,358 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:17,359 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [20643873] [2020-09-21 11:27:17,362 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:17,363 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:27:17,364 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1501384030] [2020-09-21 11:27:17,373 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:27:17,374 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:17,396 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:27:17,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:27:17,402 INFO L87 Difference]: Start difference. First operand 215 states. Second operand 4 states. [2020-09-21 11:27:19,059 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:19,060 INFO L93 Difference]: Finished difference Result 596 states and 1022 transitions. [2020-09-21 11:27:19,060 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:19,062 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 35 [2020-09-21 11:27:19,063 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:19,095 INFO L225 Difference]: With dead ends: 596 [2020-09-21 11:27:19,095 INFO L226 Difference]: Without dead ends: 302 [2020-09-21 11:27:19,104 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:19,126 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 302 states. [2020-09-21 11:27:19,191 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 302 to 296. [2020-09-21 11:27:19,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 296 states. [2020-09-21 11:27:19,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 296 states to 296 states and 448 transitions. [2020-09-21 11:27:19,197 INFO L78 Accepts]: Start accepts. Automaton has 296 states and 448 transitions. Word has length 35 [2020-09-21 11:27:19,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:19,198 INFO L479 AbstractCegarLoop]: Abstraction has 296 states and 448 transitions. [2020-09-21 11:27:19,198 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:27:19,199 INFO L276 IsEmpty]: Start isEmpty. Operand 296 states and 448 transitions. [2020-09-21 11:27:19,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 106 [2020-09-21 11:27:19,205 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:19,205 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:19,206 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:27:19,206 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:19,206 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:19,207 INFO L82 PathProgramCache]: Analyzing trace with hash -945859230, now seen corresponding path program 1 times [2020-09-21 11:27:19,207 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:19,207 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [169494405] [2020-09-21 11:27:19,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:19,275 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:19,311 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:19,312 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:19,312 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:19,312 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:19,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-21 11:27:19,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:19,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 34 [2020-09-21 11:27:19,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:19,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-21 11:27:19,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:19,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-21 11:27:19,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:19,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:19,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:19,521 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:19,521 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:19,522 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:19,522 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:19,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:19,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:19,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-21 11:27:19,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:19,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:19,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:19,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:19,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:19,550 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:19,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:19,604 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:19,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:19,605 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:19,605 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:19,605 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 11:27:19,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:19,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:27:19,614 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:19,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:19,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:19,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 11:27:19,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:19,689 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 24 proven. 1 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-09-21 11:27:19,689 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [169494405] [2020-09-21 11:27:19,689 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:19,690 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:19,690 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [916073472] [2020-09-21 11:27:19,704 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:19,704 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:19,704 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:19,705 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:19,705 INFO L87 Difference]: Start difference. First operand 296 states and 448 transitions. Second operand 5 states. [2020-09-21 11:27:21,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:21,140 INFO L93 Difference]: Finished difference Result 594 states and 915 transitions. [2020-09-21 11:27:21,141 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:21,142 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 105 [2020-09-21 11:27:21,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:21,146 INFO L225 Difference]: With dead ends: 594 [2020-09-21 11:27:21,146 INFO L226 Difference]: Without dead ends: 592 [2020-09-21 11:27:21,148 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:27:21,149 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 592 states. [2020-09-21 11:27:21,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 592 to 586. [2020-09-21 11:27:21,188 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 586 states. [2020-09-21 11:27:21,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 586 states to 586 states and 899 transitions. [2020-09-21 11:27:21,191 INFO L78 Accepts]: Start accepts. Automaton has 586 states and 899 transitions. Word has length 105 [2020-09-21 11:27:21,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:21,192 INFO L479 AbstractCegarLoop]: Abstraction has 586 states and 899 transitions. [2020-09-21 11:27:21,193 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:21,193 INFO L276 IsEmpty]: Start isEmpty. Operand 586 states and 899 transitions. [2020-09-21 11:27:21,196 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 109 [2020-09-21 11:27:21,197 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:21,197 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:21,197 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:27:21,198 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:21,198 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:21,198 INFO L82 PathProgramCache]: Analyzing trace with hash 1212772285, now seen corresponding path program 1 times [2020-09-21 11:27:21,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:21,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1311793847] [2020-09-21 11:27:21,199 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:21,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:21,292 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:21,293 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:21,293 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:21,293 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:21,293 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-09-21 11:27:21,293 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:21,294 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-09-21 11:27:21,294 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:21,294 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 79 [2020-09-21 11:27:21,295 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:21,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:21,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:21,365 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:21,365 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:21,365 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:21,365 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:21,366 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:21,366 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:21,366 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:21,366 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:21,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:21,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:21,367 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:21,367 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:21,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:21,405 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:21,437 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:21,437 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:21,437 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:21,437 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:21,438 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-09-21 11:27:21,438 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:21,438 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-09-21 11:27:21,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:21,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:21,439 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-21 11:27:21,439 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:21,545 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:21,545 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1311793847] [2020-09-21 11:27:21,545 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:21,546 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:27:21,546 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2040566478] [2020-09-21 11:27:21,547 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:27:21,547 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:21,547 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:27:21,547 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:27:21,548 INFO L87 Difference]: Start difference. First operand 586 states and 899 transitions. Second operand 8 states. [2020-09-21 11:27:23,294 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:23,295 INFO L93 Difference]: Finished difference Result 1484 states and 2340 transitions. [2020-09-21 11:27:23,295 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:27:23,296 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 108 [2020-09-21 11:27:23,297 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:23,303 INFO L225 Difference]: With dead ends: 1484 [2020-09-21 11:27:23,303 INFO L226 Difference]: Without dead ends: 904 [2020-09-21 11:27:23,306 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=46, Invalid=110, Unknown=0, NotChecked=0, Total=156 [2020-09-21 11:27:23,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 904 states. [2020-09-21 11:27:23,346 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 904 to 886. [2020-09-21 11:27:23,347 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 886 states. [2020-09-21 11:27:23,351 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 886 states to 886 states and 1271 transitions. [2020-09-21 11:27:23,351 INFO L78 Accepts]: Start accepts. Automaton has 886 states and 1271 transitions. Word has length 108 [2020-09-21 11:27:23,352 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:23,352 INFO L479 AbstractCegarLoop]: Abstraction has 886 states and 1271 transitions. [2020-09-21 11:27:23,352 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:27:23,352 INFO L276 IsEmpty]: Start isEmpty. Operand 886 states and 1271 transitions. [2020-09-21 11:27:23,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 118 [2020-09-21 11:27:23,356 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:23,357 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:23,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:27:23,357 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:23,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:23,358 INFO L82 PathProgramCache]: Analyzing trace with hash -969660742, now seen corresponding path program 1 times [2020-09-21 11:27:23,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:23,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1793635617] [2020-09-21 11:27:23,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:23,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:23,554 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:23,554 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:23,554 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:23,555 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:23,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-09-21 11:27:23,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:23,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-09-21 11:27:23,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:23,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:27:23,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:23,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:23,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:23,643 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:23,643 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:23,643 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:23,644 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:23,644 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:23,645 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:23,645 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:27:23,645 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:23,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:23,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:23,646 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:23,646 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:23,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:23,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:23,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:23,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:23,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:23,739 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:23,739 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:27:23,739 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:23,739 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:27:23,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:23,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:23,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:23,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-21 11:27:23,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:23,831 INFO L134 CoverageAnalysis]: Checked inductivity of 28 backedges. 28 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:23,832 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1793635617] [2020-09-21 11:27:23,832 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:23,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:27:23,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [838037581] [2020-09-21 11:27:23,835 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:27:23,837 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:23,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:27:23,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:27:23,838 INFO L87 Difference]: Start difference. First operand 886 states and 1271 transitions. Second operand 8 states. [2020-09-21 11:27:26,260 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:26,262 INFO L93 Difference]: Finished difference Result 3115 states and 4632 transitions. [2020-09-21 11:27:26,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:27:26,263 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 117 [2020-09-21 11:27:26,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:26,280 INFO L225 Difference]: With dead ends: 3115 [2020-09-21 11:27:26,280 INFO L226 Difference]: Without dead ends: 2235 [2020-09-21 11:27:26,285 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 27 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=59, Invalid=151, Unknown=0, NotChecked=0, Total=210 [2020-09-21 11:27:26,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2235 states. [2020-09-21 11:27:26,374 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2235 to 1788. [2020-09-21 11:27:26,374 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1788 states. [2020-09-21 11:27:26,386 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1788 states to 1788 states and 2437 transitions. [2020-09-21 11:27:26,386 INFO L78 Accepts]: Start accepts. Automaton has 1788 states and 2437 transitions. Word has length 117 [2020-09-21 11:27:26,387 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:26,387 INFO L479 AbstractCegarLoop]: Abstraction has 1788 states and 2437 transitions. [2020-09-21 11:27:26,388 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:27:26,388 INFO L276 IsEmpty]: Start isEmpty. Operand 1788 states and 2437 transitions. [2020-09-21 11:27:26,395 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-09-21 11:27:26,395 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:26,396 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:26,396 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:27:26,396 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:26,396 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:26,397 INFO L82 PathProgramCache]: Analyzing trace with hash 1119643437, now seen corresponding path program 1 times [2020-09-21 11:27:26,397 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:26,397 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [467718898] [2020-09-21 11:27:26,398 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:26,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:26,555 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:26,555 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:26,555 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:26,556 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:26,556 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 217 [2020-09-21 11:27:26,556 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:26,556 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-09-21 11:27:26,556 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:26,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:26,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:26,557 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 93 [2020-09-21 11:27:26,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:26,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:26,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:26,640 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:26,640 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:26,641 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:26,641 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:26,641 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:26,641 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:26,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:26,642 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:26,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:26,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:26,657 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:26,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:26,719 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:26,719 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:26,720 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:26,720 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:26,720 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-21 11:27:26,720 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:26,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-09-21 11:27:26,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:26,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:26,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:26,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:27:26,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:26,854 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2020-09-21 11:27:26,879 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:26,881 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:26,881 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:26,881 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:26,881 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:26,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:27:26,882 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:26,882 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:26,882 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:26,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:26,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:27:26,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:26,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:26,951 INFO L134 CoverageAnalysis]: Checked inductivity of 138 backedges. 56 proven. 77 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-21 11:27:26,952 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [467718898] [2020-09-21 11:27:26,952 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:26,952 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:26,952 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [978423430] [2020-09-21 11:27:26,953 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:26,954 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:26,954 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:26,954 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:26,954 INFO L87 Difference]: Start difference. First operand 1788 states and 2437 transitions. Second operand 7 states. [2020-09-21 11:27:28,480 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:28,480 INFO L93 Difference]: Finished difference Result 3735 states and 5095 transitions. [2020-09-21 11:27:28,481 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:27:28,481 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 204 [2020-09-21 11:27:28,481 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:28,492 INFO L225 Difference]: With dead ends: 3735 [2020-09-21 11:27:28,493 INFO L226 Difference]: Without dead ends: 1953 [2020-09-21 11:27:28,497 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:27:28,500 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1953 states. [2020-09-21 11:27:28,540 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1953 to 1347. [2020-09-21 11:27:28,540 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1347 states. [2020-09-21 11:27:28,545 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1347 states to 1347 states and 1710 transitions. [2020-09-21 11:27:28,546 INFO L78 Accepts]: Start accepts. Automaton has 1347 states and 1710 transitions. Word has length 204 [2020-09-21 11:27:28,546 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:28,546 INFO L479 AbstractCegarLoop]: Abstraction has 1347 states and 1710 transitions. [2020-09-21 11:27:28,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:28,547 INFO L276 IsEmpty]: Start isEmpty. Operand 1347 states and 1710 transitions. [2020-09-21 11:27:28,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 225 [2020-09-21 11:27:28,550 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:28,551 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:28,551 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:27:28,551 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:28,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:28,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1242676381, now seen corresponding path program 1 times [2020-09-21 11:27:28,552 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:28,552 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [473028840] [2020-09-21 11:27:28,553 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:28,628 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:28,676 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:28,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:28,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:28,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:28,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 237 [2020-09-21 11:27:28,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:28,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-09-21 11:27:28,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:28,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:28,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 202 [2020-09-21 11:27:28,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:27:28,679 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:28,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:28,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:28,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:28,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:28,783 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:28,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:28,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:28,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:28,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:28,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:28,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:28,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:28,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:28,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:28,798 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:28,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:28,804 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:28,805 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:28,805 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:28,805 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:28,805 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 11:27:28,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:28,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:28,806 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:28,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:28,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:28,806 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:28,807 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:28,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:27:28,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:28,872 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:28,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:28,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:28,873 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:28,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 121 [2020-09-21 11:27:28,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:28,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:27:28,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:28,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:28,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:28,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-09-21 11:27:28,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:28,961 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-09-21 11:27:28,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [473028840] [2020-09-21 11:27:28,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:28,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:28,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [101424209] [2020-09-21 11:27:28,964 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:28,964 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:28,964 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:28,965 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:28,965 INFO L87 Difference]: Start difference. First operand 1347 states and 1710 transitions. Second operand 5 states. [2020-09-21 11:27:30,264 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:30,264 INFO L93 Difference]: Finished difference Result 2839 states and 3683 transitions. [2020-09-21 11:27:30,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:30,265 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 224 [2020-09-21 11:27:30,266 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:30,271 INFO L225 Difference]: With dead ends: 2839 [2020-09-21 11:27:30,272 INFO L226 Difference]: Without dead ends: 1204 [2020-09-21 11:27:30,276 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:27:30,278 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1204 states. [2020-09-21 11:27:30,302 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1204 to 1198. [2020-09-21 11:27:30,302 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1198 states. [2020-09-21 11:27:30,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1536 transitions. [2020-09-21 11:27:30,307 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1536 transitions. Word has length 224 [2020-09-21 11:27:30,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:30,307 INFO L479 AbstractCegarLoop]: Abstraction has 1198 states and 1536 transitions. [2020-09-21 11:27:30,308 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:30,308 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1536 transitions. [2020-09-21 11:27:30,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-09-21 11:27:30,312 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:30,312 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:30,312 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:27:30,312 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:30,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:30,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1842285090, now seen corresponding path program 1 times [2020-09-21 11:27:30,313 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:30,313 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2068320336] [2020-09-21 11:27:30,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:30,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:30,402 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:30,403 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:30,403 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:30,403 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:30,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-09-21 11:27:30,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:30,404 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-21 11:27:30,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:27:30,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-09-21 11:27:30,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:30,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:30,493 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:30,494 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:30,494 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:30,495 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:30,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:30,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:30,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:30,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:30,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:30,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:30,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:30,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:30,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:30,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:30,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:30,528 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:30,528 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:30,528 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:30,529 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:30,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-09-21 11:27:30,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:30,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:27:30,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:30,530 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:30,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:30,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-09-21 11:27:30,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:30,562 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2020-09-21 11:27:30,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:30,603 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:30,604 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:30,604 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:30,604 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:30,604 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 138 [2020-09-21 11:27:30,605 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:30,605 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:27:30,605 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:30,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:30,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:30,605 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-09-21 11:27:30,606 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:31,014 INFO L134 CoverageAnalysis]: Checked inductivity of 126 backedges. 123 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:27:31,015 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2068320336] [2020-09-21 11:27:31,015 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:31,015 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:31,015 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [843327176] [2020-09-21 11:27:31,016 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:31,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:31,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:31,017 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:31,018 INFO L87 Difference]: Start difference. First operand 1198 states and 1536 transitions. Second operand 7 states. [2020-09-21 11:27:32,552 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:32,552 INFO L93 Difference]: Finished difference Result 2563 states and 3379 transitions. [2020-09-21 11:27:32,553 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:27:32,553 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 241 [2020-09-21 11:27:32,554 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:32,560 INFO L225 Difference]: With dead ends: 2563 [2020-09-21 11:27:32,560 INFO L226 Difference]: Without dead ends: 1514 [2020-09-21 11:27:32,563 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:27:32,565 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1514 states. [2020-09-21 11:27:32,594 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1514 to 1351. [2020-09-21 11:27:32,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1351 states. [2020-09-21 11:27:32,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1717 transitions. [2020-09-21 11:27:32,599 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1717 transitions. Word has length 241 [2020-09-21 11:27:32,600 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:32,600 INFO L479 AbstractCegarLoop]: Abstraction has 1351 states and 1717 transitions. [2020-09-21 11:27:32,600 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:32,600 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1717 transitions. [2020-09-21 11:27:32,604 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 256 [2020-09-21 11:27:32,605 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:32,605 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:32,605 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:27:32,606 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:32,606 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:32,606 INFO L82 PathProgramCache]: Analyzing trace with hash -1589198910, now seen corresponding path program 1 times [2020-09-21 11:27:32,606 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:32,607 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1284542598] [2020-09-21 11:27:32,607 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:32,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:32,680 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:27:32,680 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -84 [2020-09-21 11:27:32,680 FATAL L256 erpolLogProxyWrapper]: Difference in width: 84 [2020-09-21 11:27:32,680 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:32,681 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 268 [2020-09-21 11:27:32,681 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:32,681 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-09-21 11:27:32,681 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:32,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:32,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-09-21 11:27:32,682 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:27:32,682 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:32,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:32,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:32,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:32,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:32,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:32,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:32,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:32,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:32,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:32,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:32,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:32,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:32,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:32,786 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:32,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:32,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:32,828 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:27:32,828 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:32,828 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:32,829 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:32,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-09-21 11:27:32,829 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:32,829 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:27:32,829 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:32,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:32,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:32,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-21 11:27:32,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:32,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-21 11:27:32,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:32,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:32,973 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:32,973 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:32,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:32,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-09-21 11:27:32,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:32,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:27:32,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:32,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:32,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:32,975 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-09-21 11:27:32,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:33,167 INFO L134 CoverageAnalysis]: Checked inductivity of 135 backedges. 132 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:27:33,167 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1284542598] [2020-09-21 11:27:33,168 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:33,168 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:33,168 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562127888] [2020-09-21 11:27:33,169 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:33,169 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:33,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:33,170 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:33,170 INFO L87 Difference]: Start difference. First operand 1351 states and 1717 transitions. Second operand 7 states. [2020-09-21 11:27:35,023 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:35,023 INFO L93 Difference]: Finished difference Result 3164 states and 4099 transitions. [2020-09-21 11:27:35,024 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:27:35,024 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 255 [2020-09-21 11:27:35,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:35,037 INFO L225 Difference]: With dead ends: 3164 [2020-09-21 11:27:35,037 INFO L226 Difference]: Without dead ends: 1939 [2020-09-21 11:27:35,042 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:27:35,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1939 states. [2020-09-21 11:27:35,140 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1939 to 1351. [2020-09-21 11:27:35,141 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1351 states. [2020-09-21 11:27:35,147 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1351 states to 1351 states and 1709 transitions. [2020-09-21 11:27:35,148 INFO L78 Accepts]: Start accepts. Automaton has 1351 states and 1709 transitions. Word has length 255 [2020-09-21 11:27:35,148 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:35,148 INFO L479 AbstractCegarLoop]: Abstraction has 1351 states and 1709 transitions. [2020-09-21 11:27:35,148 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:35,148 INFO L276 IsEmpty]: Start isEmpty. Operand 1351 states and 1709 transitions. [2020-09-21 11:27:35,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 292 [2020-09-21 11:27:35,154 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:35,155 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:35,155 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:27:35,155 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:35,155 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:35,156 INFO L82 PathProgramCache]: Analyzing trace with hash -242118854, now seen corresponding path program 1 times [2020-09-21 11:27:35,156 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:35,157 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [160009498] [2020-09-21 11:27:35,157 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:35,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:35,257 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:35,257 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:35,257 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:35,258 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:35,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 304 [2020-09-21 11:27:35,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:35,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:27:35,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:35,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:35,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 269 [2020-09-21 11:27:35,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:27:35,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:35,349 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:35,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:35,351 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:35,351 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:35,351 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:35,352 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:35,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:35,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:35,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:35,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:35,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:35,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:35,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:35,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:35,366 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:35,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:35,373 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:35,373 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:35,373 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:35,374 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:35,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:35,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:35,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:35,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:35,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:35,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:35,414 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:35,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:35,451 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:35,452 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:35,452 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:35,452 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:35,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-09-21 11:27:35,453 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:35,453 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:27:35,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-09-21 11:27:35,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:35,624 INFO L134 CoverageAnalysis]: Checked inductivity of 171 backedges. 57 proven. 2 refuted. 0 times theorem prover too weak. 112 trivial. 0 not checked. [2020-09-21 11:27:35,625 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [160009498] [2020-09-21 11:27:35,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:35,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:35,626 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1445567438] [2020-09-21 11:27:35,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:35,627 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:35,627 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:35,628 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:35,629 INFO L87 Difference]: Start difference. First operand 1351 states and 1709 transitions. Second operand 5 states. [2020-09-21 11:27:37,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:37,247 INFO L93 Difference]: Finished difference Result 2998 states and 3814 transitions. [2020-09-21 11:27:37,247 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:37,248 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 291 [2020-09-21 11:27:37,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:37,252 INFO L225 Difference]: With dead ends: 2998 [2020-09-21 11:27:37,253 INFO L226 Difference]: Without dead ends: 1206 [2020-09-21 11:27:37,256 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:27:37,258 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1206 states. [2020-09-21 11:27:37,278 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1206 to 1198. [2020-09-21 11:27:37,278 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1198 states. [2020-09-21 11:27:37,281 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1198 states to 1198 states and 1461 transitions. [2020-09-21 11:27:37,281 INFO L78 Accepts]: Start accepts. Automaton has 1198 states and 1461 transitions. Word has length 291 [2020-09-21 11:27:37,282 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:37,282 INFO L479 AbstractCegarLoop]: Abstraction has 1198 states and 1461 transitions. [2020-09-21 11:27:37,282 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:37,282 INFO L276 IsEmpty]: Start isEmpty. Operand 1198 states and 1461 transitions. [2020-09-21 11:27:37,289 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 320 [2020-09-21 11:27:37,289 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:37,289 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:37,290 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-21 11:27:37,290 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:37,290 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:37,290 INFO L82 PathProgramCache]: Analyzing trace with hash 1577155938, now seen corresponding path program 1 times [2020-09-21 11:27:37,291 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:37,291 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866444929] [2020-09-21 11:27:37,291 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:37,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:37,413 FATAL L256 erpolLogProxyWrapper]: Difference in size: 6 [2020-09-21 11:27:37,413 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -120 [2020-09-21 11:27:37,413 FATAL L256 erpolLogProxyWrapper]: Difference in width: 120 [2020-09-21 11:27:37,414 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:37,414 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 334 [2020-09-21 11:27:37,414 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:37,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-09-21 11:27:37,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:37,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:37,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 11:27:37,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-09-21 11:27:37,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:37,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:37,540 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:37,540 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:37,540 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:37,541 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:37,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:37,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:37,541 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:37,541 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:37,542 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:37,542 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:37,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:37,584 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:37,591 FATAL L256 erpolLogProxyWrapper]: Difference in size: 1 [2020-09-21 11:27:37,592 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:37,592 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:37,592 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:37,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:37,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:37,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:27:37,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:37,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:37,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:37,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:27:37,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:37,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:37,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:37,730 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:37,731 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:37,731 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:37,732 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:37,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-21 11:27:37,732 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:37,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-09-21 11:27:37,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:37,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:37,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:37,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-21 11:27:37,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:37,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-09-21 11:27:37,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:37,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:37,874 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:37,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:37,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:37,875 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:27:37,875 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:37,875 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:37,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:27:37,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:37,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:38,059 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 172 proven. 81 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-09-21 11:27:38,060 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866444929] [2020-09-21 11:27:38,060 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:38,060 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:38,061 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [159980859] [2020-09-21 11:27:38,062 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:38,062 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:38,062 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:38,063 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:38,063 INFO L87 Difference]: Start difference. First operand 1198 states and 1461 transitions. Second operand 7 states. [2020-09-21 11:27:39,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:39,701 INFO L93 Difference]: Finished difference Result 2565 states and 3243 transitions. [2020-09-21 11:27:39,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:27:39,703 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 319 [2020-09-21 11:27:39,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:39,709 INFO L225 Difference]: With dead ends: 2565 [2020-09-21 11:27:39,709 INFO L226 Difference]: Without dead ends: 1516 [2020-09-21 11:27:39,712 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:27:39,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1516 states. [2020-09-21 11:27:39,744 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1516 to 1508. [2020-09-21 11:27:39,744 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1508 states. [2020-09-21 11:27:39,748 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1508 states to 1508 states and 1835 transitions. [2020-09-21 11:27:39,749 INFO L78 Accepts]: Start accepts. Automaton has 1508 states and 1835 transitions. Word has length 319 [2020-09-21 11:27:39,749 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:39,749 INFO L479 AbstractCegarLoop]: Abstraction has 1508 states and 1835 transitions. [2020-09-21 11:27:39,749 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:39,750 INFO L276 IsEmpty]: Start isEmpty. Operand 1508 states and 1835 transitions. [2020-09-21 11:27:39,756 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 321 [2020-09-21 11:27:39,757 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:39,757 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:39,757 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-21 11:27:39,758 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:39,758 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:39,758 INFO L82 PathProgramCache]: Analyzing trace with hash 2026736261, now seen corresponding path program 1 times [2020-09-21 11:27:39,758 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:39,759 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1623871603] [2020-09-21 11:27:39,759 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:39,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:39,851 FATAL L256 erpolLogProxyWrapper]: Difference in size: 6 [2020-09-21 11:27:39,852 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -120 [2020-09-21 11:27:39,852 FATAL L256 erpolLogProxyWrapper]: Difference in width: 120 [2020-09-21 11:27:39,852 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:39,852 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 335 [2020-09-21 11:27:39,853 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:39,853 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-21 11:27:39,853 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:39,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:39,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 126 [2020-09-21 11:27:39,854 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-21 11:27:39,854 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:39,943 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:39,945 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:39,946 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:39,946 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:39,946 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:39,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:39,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:39,948 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:39,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:39,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:39,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:39,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:39,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:39,997 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:39,997 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:39,997 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:39,998 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:39,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 117 [2020-09-21 11:27:39,999 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:39,999 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:27:39,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:40,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:40,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:40,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-09-21 11:27:40,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:40,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-21 11:27:40,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:40,086 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:40,087 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:40,087 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:40,087 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:40,087 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-09-21 11:27:40,087 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:40,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:27:40,088 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:40,088 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-09-21 11:27:40,089 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:40,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-09-21 11:27:40,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:40,175 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:40,175 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:40,176 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:40,176 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:40,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:27:40,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:40,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:40,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:40,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:40,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-21 11:27:40,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:40,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:40,285 INFO L134 CoverageAnalysis]: Checked inductivity of 336 backedges. 173 proven. 81 refuted. 0 times theorem prover too weak. 82 trivial. 0 not checked. [2020-09-21 11:27:40,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1623871603] [2020-09-21 11:27:40,286 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:40,286 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:40,286 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818092717] [2020-09-21 11:27:40,287 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:40,287 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:40,288 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:40,289 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:40,289 INFO L87 Difference]: Start difference. First operand 1508 states and 1835 transitions. Second operand 7 states. [2020-09-21 11:27:41,895 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:41,896 INFO L93 Difference]: Finished difference Result 3169 states and 3903 transitions. [2020-09-21 11:27:41,896 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:27:41,897 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 320 [2020-09-21 11:27:41,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:41,903 INFO L225 Difference]: With dead ends: 3169 [2020-09-21 11:27:41,903 INFO L226 Difference]: Without dead ends: 1810 [2020-09-21 11:27:41,907 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:27:41,909 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1810 states. [2020-09-21 11:27:41,943 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1810 to 1802. [2020-09-21 11:27:41,943 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1802 states. [2020-09-21 11:27:41,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1802 states to 1802 states and 2102 transitions. [2020-09-21 11:27:41,947 INFO L78 Accepts]: Start accepts. Automaton has 1802 states and 2102 transitions. Word has length 320 [2020-09-21 11:27:41,948 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:41,948 INFO L479 AbstractCegarLoop]: Abstraction has 1802 states and 2102 transitions. [2020-09-21 11:27:41,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:41,948 INFO L276 IsEmpty]: Start isEmpty. Operand 1802 states and 2102 transitions. [2020-09-21 11:27:41,952 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 339 [2020-09-21 11:27:41,953 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:41,953 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:41,954 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-21 11:27:41,954 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:41,954 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:41,954 INFO L82 PathProgramCache]: Analyzing trace with hash 1986389201, now seen corresponding path program 1 times [2020-09-21 11:27:41,954 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:41,955 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1389488576] [2020-09-21 11:27:41,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:42,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:42,102 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:42,103 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:42,103 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:42,103 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:42,103 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 353 [2020-09-21 11:27:42,103 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:42,104 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-09-21 11:27:42,104 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:42,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:42,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 234 [2020-09-21 11:27:42,104 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 85 [2020-09-21 11:27:42,104 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:42,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:42,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:42,215 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:42,216 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:42,217 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:42,217 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:42,217 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:42,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:42,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:42,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:42,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:42,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:42,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:42,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:42,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:42,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:42,244 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:42,244 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:42,244 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:42,244 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:42,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:27:42,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:42,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:42,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:42,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:42,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:42,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:42,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:42,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-21 11:27:42,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:42,347 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:42,347 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:42,347 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:42,348 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:42,350 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 89 [2020-09-21 11:27:42,351 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:42,351 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:27:42,351 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:42,351 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:42,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:42,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-21 11:27:42,352 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:42,382 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 229 [2020-09-21 11:27:42,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:42,441 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:42,442 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:42,442 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:42,442 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:42,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:27:42,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:42,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:27:42,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:42,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:42,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 83 [2020-09-21 11:27:42,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:42,600 INFO L134 CoverageAnalysis]: Checked inductivity of 335 backedges. 247 proven. 2 refuted. 0 times theorem prover too weak. 86 trivial. 0 not checked. [2020-09-21 11:27:42,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1389488576] [2020-09-21 11:27:42,601 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:42,601 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:42,601 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1680642248] [2020-09-21 11:27:42,602 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:42,602 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:42,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:42,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:42,603 INFO L87 Difference]: Start difference. First operand 1802 states and 2102 transitions. Second operand 7 states. [2020-09-21 11:27:44,525 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:44,525 INFO L93 Difference]: Finished difference Result 4339 states and 5212 transitions. [2020-09-21 11:27:44,529 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-09-21 11:27:44,529 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 338 [2020-09-21 11:27:44,530 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:44,539 INFO L225 Difference]: With dead ends: 4339 [2020-09-21 11:27:44,540 INFO L226 Difference]: Without dead ends: 2686 [2020-09-21 11:27:44,543 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=31, Invalid=59, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:27:44,546 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2686 states. [2020-09-21 11:27:44,595 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2686 to 2386. [2020-09-21 11:27:44,595 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2386 states. [2020-09-21 11:27:44,599 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2386 states to 2386 states and 2776 transitions. [2020-09-21 11:27:44,600 INFO L78 Accepts]: Start accepts. Automaton has 2386 states and 2776 transitions. Word has length 338 [2020-09-21 11:27:44,601 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:44,601 INFO L479 AbstractCegarLoop]: Abstraction has 2386 states and 2776 transitions. [2020-09-21 11:27:44,601 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:44,601 INFO L276 IsEmpty]: Start isEmpty. Operand 2386 states and 2776 transitions. [2020-09-21 11:27:44,607 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 348 [2020-09-21 11:27:44,607 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:44,607 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:44,608 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-09-21 11:27:44,608 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:44,608 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:44,608 INFO L82 PathProgramCache]: Analyzing trace with hash -1313031034, now seen corresponding path program 1 times [2020-09-21 11:27:44,608 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:44,609 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1219164582] [2020-09-21 11:27:44,609 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:44,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:44,732 FATAL L256 erpolLogProxyWrapper]: Difference in size: 7 [2020-09-21 11:27:44,732 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -321 [2020-09-21 11:27:44,733 FATAL L256 erpolLogProxyWrapper]: Difference in width: 321 [2020-09-21 11:27:44,733 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:44,733 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 362 [2020-09-21 11:27:44,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:44,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-09-21 11:27:44,734 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:44,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:44,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 327 [2020-09-21 11:27:44,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-09-21 11:27:44,735 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:44,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:44,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:44,873 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:44,874 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:44,874 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:44,874 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:44,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:44,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:44,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 0 [2020-09-21 11:27:44,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:44,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:44,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:44,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:44,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:44,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:44,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:44,898 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:44,899 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:44,899 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:44,899 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:44,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-09-21 11:27:44,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:44,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:44,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:44,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:44,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:44,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:44,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:44,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-21 11:27:44,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:44,975 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:44,976 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:44,976 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:44,976 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:44,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 98 [2020-09-21 11:27:44,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:44,977 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:44,977 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:44,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:44,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:44,978 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:44,978 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:45,018 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 238 [2020-09-21 11:27:45,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:45,043 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:45,044 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:45,044 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:45,045 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:45,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-09-21 11:27:45,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:45,046 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:27:45,046 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:45,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:45,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:45,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-21 11:27:45,047 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:45,190 INFO L134 CoverageAnalysis]: Checked inductivity of 344 backedges. 87 proven. 3 refuted. 0 times theorem prover too weak. 254 trivial. 0 not checked. [2020-09-21 11:27:45,191 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1219164582] [2020-09-21 11:27:45,191 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:45,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-09-21 11:27:45,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1609633117] [2020-09-21 11:27:45,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-21 11:27:45,192 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:45,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-21 11:27:45,193 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:27:45,193 INFO L87 Difference]: Start difference. First operand 2386 states and 2776 transitions. Second operand 6 states. [2020-09-21 11:27:46,420 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:46,421 INFO L93 Difference]: Finished difference Result 4768 states and 5568 transitions. [2020-09-21 11:27:46,421 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:46,421 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 347 [2020-09-21 11:27:46,422 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:46,422 INFO L225 Difference]: With dead ends: 4768 [2020-09-21 11:27:46,422 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:27:46,430 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:46,430 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:27:46,430 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:27:46,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:27:46,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:27:46,431 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 347 [2020-09-21 11:27:46,431 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:46,432 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:27:46,432 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-21 11:27:46,432 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:27:46,432 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:27:46,432 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-09-21 11:27:46,435 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:27:47,780 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 127 [2020-09-21 11:27:48,054 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 148 DAG size of output: 127 [2020-09-21 11:27:48,923 WARN L193 SmtUtils]: Spent 774.00 ms on a formula simplification. DAG size of input: 199 DAG size of output: 46 [2020-09-21 11:27:49,591 WARN L193 SmtUtils]: Spent 647.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 49 [2020-09-21 11:27:50,241 WARN L193 SmtUtils]: Spent 646.00 ms on a formula simplification. DAG size of input: 130 DAG size of output: 49 [2020-09-21 11:27:50,245 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:27:50,246 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~inputC~0 |old(~inputC~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a4~0 |old(~a4~0)|) (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) [2020-09-21 11:27:50,246 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:27:50,246 INFO L268 CegarLoopResult]: For program point L465(lines 465 572) no Hoare annotation was computed. [2020-09-21 11:27:50,246 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,246 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,246 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,247 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,247 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,247 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,247 INFO L268 CegarLoopResult]: For program point L499(lines 499 572) no Hoare annotation was computed. [2020-09-21 11:27:50,247 INFO L268 CegarLoopResult]: For program point L301(lines 301 572) no Hoare annotation was computed. [2020-09-21 11:27:50,247 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-09-21 11:27:50,247 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-09-21 11:27:50,247 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-09-21 11:27:50,247 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-09-21 11:27:50,247 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-09-21 11:27:50,248 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-09-21 11:27:50,248 INFO L268 CegarLoopResult]: For program point L335(lines 335 572) no Hoare annotation was computed. [2020-09-21 11:27:50,248 INFO L268 CegarLoopResult]: For program point L236(lines 236 572) no Hoare annotation was computed. [2020-09-21 11:27:50,248 INFO L268 CegarLoopResult]: For program point L534(lines 534 572) no Hoare annotation was computed. [2020-09-21 11:27:50,248 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,248 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,249 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,249 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,249 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,249 INFO L268 CegarLoopResult]: For program point L436(lines 436 572) no Hoare annotation was computed. [2020-09-21 11:27:50,249 INFO L268 CegarLoopResult]: For program point L403(lines 403 572) no Hoare annotation was computed. [2020-09-21 11:27:50,249 INFO L268 CegarLoopResult]: For program point L370(lines 370 572) no Hoare annotation was computed. [2020-09-21 11:27:50,249 INFO L268 CegarLoopResult]: For program point L271(lines 271 572) no Hoare annotation was computed. [2020-09-21 11:27:50,249 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-09-21 11:27:50,249 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-09-21 11:27:50,250 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-09-21 11:27:50,250 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-09-21 11:27:50,250 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-09-21 11:27:50,250 INFO L268 CegarLoopResult]: For program point L569(lines 569 572) no Hoare annotation was computed. [2020-09-21 11:27:50,250 INFO L268 CegarLoopResult]: For program point L239(lines 239 572) no Hoare annotation was computed. [2020-09-21 11:27:50,250 INFO L268 CegarLoopResult]: For program point L504(lines 504 572) no Hoare annotation was computed. [2020-09-21 11:27:50,250 INFO L268 CegarLoopResult]: For program point L471(lines 471 572) no Hoare annotation was computed. [2020-09-21 11:27:50,250 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 91) no Hoare annotation was computed. [2020-09-21 11:27:50,251 INFO L268 CegarLoopResult]: For program point L306(lines 306 572) no Hoare annotation was computed. [2020-09-21 11:27:50,251 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,251 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,251 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,251 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,251 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,252 INFO L268 CegarLoopResult]: For program point L340(lines 340 572) no Hoare annotation was computed. [2020-09-21 11:27:50,252 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-09-21 11:27:50,252 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-09-21 11:27:50,252 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-09-21 11:27:50,252 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-09-21 11:27:50,252 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-09-21 11:27:50,252 INFO L268 CegarLoopResult]: For program point L540(lines 540 572) no Hoare annotation was computed. [2020-09-21 11:27:50,253 INFO L268 CegarLoopResult]: For program point L408(lines 408 572) no Hoare annotation was computed. [2020-09-21 11:27:50,253 INFO L268 CegarLoopResult]: For program point L375(lines 375 572) no Hoare annotation was computed. [2020-09-21 11:27:50,253 INFO L268 CegarLoopResult]: For program point L210(lines 210 572) no Hoare annotation was computed. [2020-09-21 11:27:50,253 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,253 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,253 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,253 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,254 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,254 INFO L268 CegarLoopResult]: For program point L442(lines 442 572) no Hoare annotation was computed. [2020-09-21 11:27:50,254 INFO L268 CegarLoopResult]: For program point L277(lines 277 572) no Hoare annotation was computed. [2020-09-21 11:27:50,254 INFO L268 CegarLoopResult]: For program point L244(lines 244 572) no Hoare annotation was computed. [2020-09-21 11:27:50,254 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-09-21 11:27:50,254 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-09-21 11:27:50,255 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-09-21 11:27:50,255 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-09-21 11:27:50,255 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-09-21 11:27:50,255 INFO L268 CegarLoopResult]: For program point L509(lines 509 572) no Hoare annotation was computed. [2020-09-21 11:27:50,255 INFO L268 CegarLoopResult]: For program point L476(lines 476 572) no Hoare annotation was computed. [2020-09-21 11:27:50,255 INFO L268 CegarLoopResult]: For program point L378(lines 378 572) no Hoare annotation was computed. [2020-09-21 11:27:50,255 INFO L268 CegarLoopResult]: For program point L345(lines 345 572) no Hoare annotation was computed. [2020-09-21 11:27:50,256 INFO L268 CegarLoopResult]: For program point L312(lines 312 572) no Hoare annotation was computed. [2020-09-21 11:27:50,256 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,256 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,256 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,256 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,256 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,256 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-09-21 11:27:50,257 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-09-21 11:27:50,257 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-09-21 11:27:50,257 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-09-21 11:27:50,257 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-09-21 11:27:50,257 INFO L268 CegarLoopResult]: For program point L545(lines 545 572) no Hoare annotation was computed. [2020-09-21 11:27:50,257 INFO L268 CegarLoopResult]: For program point L215(lines 215 572) no Hoare annotation was computed. [2020-09-21 11:27:50,257 INFO L268 CegarLoopResult]: For program point L414(lines 414 572) no Hoare annotation was computed. [2020-09-21 11:27:50,258 INFO L268 CegarLoopResult]: For program point L249(lines 249 572) no Hoare annotation was computed. [2020-09-21 11:27:50,258 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,258 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,258 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,258 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,258 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,258 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,259 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,259 INFO L268 CegarLoopResult]: For program point L514(lines 514 572) no Hoare annotation was computed. [2020-09-21 11:27:50,259 INFO L268 CegarLoopResult]: For program point L481(lines 481 572) no Hoare annotation was computed. [2020-09-21 11:27:50,259 INFO L268 CegarLoopResult]: For program point L448(lines 448 572) no Hoare annotation was computed. [2020-09-21 11:27:50,259 INFO L268 CegarLoopResult]: For program point L283(lines 283 572) no Hoare annotation was computed. [2020-09-21 11:27:50,259 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-09-21 11:27:50,259 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-09-21 11:27:50,259 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-09-21 11:27:50,260 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-09-21 11:27:50,260 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-09-21 11:27:50,260 INFO L268 CegarLoopResult]: For program point L548(lines 548 572) no Hoare annotation was computed. [2020-09-21 11:27:50,260 INFO L268 CegarLoopResult]: For program point L383(lines 383 572) no Hoare annotation was computed. [2020-09-21 11:27:50,260 INFO L268 CegarLoopResult]: For program point L317(lines 317 572) no Hoare annotation was computed. [2020-09-21 11:27:50,260 INFO L268 CegarLoopResult]: For program point L351(lines 351 572) no Hoare annotation was computed. [2020-09-21 11:27:50,260 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,261 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,261 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,261 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,261 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-09-21 11:27:50,261 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,261 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,261 INFO L268 CegarLoopResult]: For program point L517(lines 517 572) no Hoare annotation was computed. [2020-09-21 11:27:50,262 INFO L268 CegarLoopResult]: For program point L286(lines 286 572) no Hoare annotation was computed. [2020-09-21 11:27:50,262 INFO L268 CegarLoopResult]: For program point L220(lines 220 572) no Hoare annotation was computed. [2020-09-21 11:27:50,262 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-09-21 11:27:50,262 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-09-21 11:27:50,262 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-09-21 11:27:50,262 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-09-21 11:27:50,262 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-09-21 11:27:50,263 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-09-21 11:27:50,263 INFO L268 CegarLoopResult]: For program point L419(lines 419 572) no Hoare annotation was computed. [2020-09-21 11:27:50,263 INFO L268 CegarLoopResult]: For program point L320(lines 320 572) no Hoare annotation was computed. [2020-09-21 11:27:50,263 INFO L268 CegarLoopResult]: For program point L254(lines 254 572) no Hoare annotation was computed. [2020-09-21 11:27:50,263 INFO L268 CegarLoopResult]: For program point L354(lines 354 572) no Hoare annotation was computed. [2020-09-21 11:27:50,263 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,263 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,263 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,264 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,264 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,264 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,264 INFO L268 CegarLoopResult]: For program point L487(lines 487 572) no Hoare annotation was computed. [2020-09-21 11:27:50,264 INFO L268 CegarLoopResult]: For program point L454(lines 454 572) no Hoare annotation was computed. [2020-09-21 11:27:50,264 INFO L268 CegarLoopResult]: For program point L388(lines 388 572) no Hoare annotation was computed. [2020-09-21 11:27:50,264 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-09-21 11:27:50,264 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-09-21 11:27:50,265 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-09-21 11:27:50,265 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-09-21 11:27:50,265 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-09-21 11:27:50,265 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-09-21 11:27:50,265 INFO L268 CegarLoopResult]: For program point L554(lines 554 572) no Hoare annotation was computed. [2020-09-21 11:27:50,265 INFO L268 CegarLoopResult]: For program point L323(lines 323 572) no Hoare annotation was computed. [2020-09-21 11:27:50,265 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 574) the Hoare annotation is: (let ((.cse2 (not (<= |old(~a19~0)| 9))) (.cse1 (not (<= 9 |old(~a19~0)|))) (.cse0 (and (= ~a1~0 |old(~a1~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)))) (and (or .cse0 (and (or .cse1 .cse2) (or (not (<= 23 |old(~a1~0)|)) .cse2))) (or .cse0 .cse2 (not (= 2 |old(~a10~0)|))) (or .cse0 (not (= 8 |old(~a19~0)|))) (or (not (<= |old(~a10~0)| 0)) .cse1 .cse0) (or (not (= 6 |old(~a19~0)|)) .cse0) (or .cse0 (not (<= 1 |old(~a10~0)|)) (not (<= |old(~a10~0)| 1))))) [2020-09-21 11:27:50,266 INFO L268 CegarLoopResult]: For program point L357(lines 357 572) no Hoare annotation was computed. [2020-09-21 11:27:50,266 INFO L268 CegarLoopResult]: For program point L291(lines 291 572) no Hoare annotation was computed. [2020-09-21 11:27:50,266 INFO L268 CegarLoopResult]: For program point L225(lines 225 572) no Hoare annotation was computed. [2020-09-21 11:27:50,266 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,266 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,266 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,266 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,266 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,267 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,267 INFO L268 CegarLoopResult]: For program point L523(lines 523 572) no Hoare annotation was computed. [2020-09-21 11:27:50,267 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-09-21 11:27:50,267 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-09-21 11:27:50,267 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-09-21 11:27:50,267 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-09-21 11:27:50,267 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-09-21 11:27:50,267 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-09-21 11:27:50,267 INFO L268 CegarLoopResult]: For program point L557(lines 557 572) no Hoare annotation was computed. [2020-09-21 11:27:50,268 INFO L268 CegarLoopResult]: For program point L425(lines 425 572) no Hoare annotation was computed. [2020-09-21 11:27:50,268 INFO L268 CegarLoopResult]: For program point L326(lines 326 572) no Hoare annotation was computed. [2020-09-21 11:27:50,268 INFO L268 CegarLoopResult]: For program point L260(lines 260 572) no Hoare annotation was computed. [2020-09-21 11:27:50,268 INFO L268 CegarLoopResult]: For program point L393(lines 393 572) no Hoare annotation was computed. [2020-09-21 11:27:50,268 INFO L268 CegarLoopResult]: For program point L360(lines 360 572) no Hoare annotation was computed. [2020-09-21 11:27:50,268 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,268 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,268 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,269 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,269 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,269 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,269 INFO L268 CegarLoopResult]: For program point L526(lines 526 572) no Hoare annotation was computed. [2020-09-21 11:27:50,269 INFO L268 CegarLoopResult]: For program point L493(lines 493 572) no Hoare annotation was computed. [2020-09-21 11:27:50,269 INFO L268 CegarLoopResult]: For program point L460(lines 460 572) no Hoare annotation was computed. [2020-09-21 11:27:50,269 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-09-21 11:27:50,269 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-09-21 11:27:50,269 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-09-21 11:27:50,270 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-09-21 11:27:50,270 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-09-21 11:27:50,270 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-09-21 11:27:50,270 INFO L268 CegarLoopResult]: For program point L329(lines 329 572) no Hoare annotation was computed. [2020-09-21 11:27:50,270 INFO L268 CegarLoopResult]: For program point L296(lines 296 572) no Hoare annotation was computed. [2020-09-21 11:27:50,270 INFO L268 CegarLoopResult]: For program point L231(lines 231 572) no Hoare annotation was computed. [2020-09-21 11:27:50,270 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,270 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,270 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,271 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,271 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,271 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 574) no Hoare annotation was computed. [2020-09-21 11:27:50,271 INFO L268 CegarLoopResult]: For program point L529(lines 529 572) no Hoare annotation was computed. [2020-09-21 11:27:50,271 INFO L268 CegarLoopResult]: For program point L430(lines 430 572) no Hoare annotation was computed. [2020-09-21 11:27:50,271 INFO L268 CegarLoopResult]: For program point L265(lines 265 572) no Hoare annotation was computed. [2020-09-21 11:27:50,271 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-09-21 11:27:50,271 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-09-21 11:27:50,271 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-09-21 11:27:50,272 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-09-21 11:27:50,272 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-09-21 11:27:50,272 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-09-21 11:27:50,272 INFO L268 CegarLoopResult]: For program point L563(lines 563 572) no Hoare annotation was computed. [2020-09-21 11:27:50,272 INFO L268 CegarLoopResult]: For program point L398(lines 398 572) no Hoare annotation was computed. [2020-09-21 11:27:50,272 INFO L268 CegarLoopResult]: For program point L365(lines 365 572) no Hoare annotation was computed. [2020-09-21 11:27:50,272 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:27:50,272 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (<= ~a10~0 0) (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23)) [2020-09-21 11:27:50,272 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:27:50,273 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:27:50,273 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 576 592) the Hoare annotation is: (or (not (<= 23 |old(~a1~0)|)) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and (<= 23 ~a1~0) (<= 9 ~a19~0) (<= ~a19~0 9) (<= ~a1~0 23) (= ~a10~0 |old(~a10~0)|))) [2020-09-21 11:27:50,273 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 576 592) no Hoare annotation was computed. [2020-09-21 11:27:50,273 INFO L264 CegarLoopResult]: At program point L590(line 590) the Hoare annotation is: (let ((.cse2 (<= ~a10~0 1)) (.cse0 (or (<= (+ |old(~a1~0)| 13) 0) (= 0 |old(~a10~0)|))) (.cse3 (<= 23 ~a1~0)) (.cse1 (<= 9 ~a19~0)) (.cse4 (<= ~a19~0 9))) (or (= ~a19~0 8) (not (<= 23 |old(~a1~0)|)) (and .cse0 .cse1 .cse2) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and .cse3 (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and .cse0 (= ~a10~0 2) .cse4) (= ~a19~0 6) (and .cse0 (<= 1 ~a10~0) .cse2) (and .cse0 (or (and .cse3 .cse4) (and .cse1 .cse4))))) [2020-09-21 11:27:50,273 INFO L268 CegarLoopResult]: For program point L590-1(line 590) no Hoare annotation was computed. [2020-09-21 11:27:50,273 INFO L268 CegarLoopResult]: For program point L587(line 587) no Hoare annotation was computed. [2020-09-21 11:27:50,274 INFO L264 CegarLoopResult]: At program point L582-2(lines 582 591) the Hoare annotation is: (let ((.cse2 (<= ~a10~0 1)) (.cse0 (or (<= (+ |old(~a1~0)| 13) 0) (= 0 |old(~a10~0)|))) (.cse3 (<= 23 ~a1~0)) (.cse1 (<= 9 ~a19~0)) (.cse4 (<= ~a19~0 9))) (or (= ~a19~0 8) (not (<= 23 |old(~a1~0)|)) (and .cse0 .cse1 .cse2) (not (<= |old(~a10~0)| 0)) (not (<= 9 |old(~a19~0)|)) (and .cse3 (<= ~a1~0 23) (= ~a19~0 |old(~a19~0)|) (= ~a10~0 |old(~a10~0)|)) (not (<= |old(~a1~0)| 23)) (not (<= |old(~a19~0)| 9)) (and .cse0 (= ~a10~0 2) .cse4) (= ~a19~0 6) (and .cse0 (<= 1 ~a10~0) .cse2) (and .cse0 (or (and .cse3 .cse4) (and .cse1 .cse4))))) [2020-09-21 11:27:50,274 INFO L268 CegarLoopResult]: For program point L582-3(lines 576 592) no Hoare annotation was computed. [2020-09-21 11:27:50,302 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:27:50 BoogieIcfgContainer [2020-09-21 11:27:50,302 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:27:50,304 INFO L168 Benchmark]: Toolchain (without parser) took 36206.11 ms. Allocated memory was 140.0 MB in the beginning and 680.0 MB in the end (delta: 540.0 MB). Free memory was 101.7 MB in the beginning and 109.2 MB in the end (delta: -7.5 MB). Peak memory consumption was 532.6 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:50,305 INFO L168 Benchmark]: CDTParser took 1.07 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:27:50,306 INFO L168 Benchmark]: CACSL2BoogieTranslator took 891.20 ms. Allocated memory was 140.0 MB in the beginning and 206.0 MB in the end (delta: 66.1 MB). Free memory was 101.1 MB in the beginning and 172.6 MB in the end (delta: -71.5 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:50,307 INFO L168 Benchmark]: Boogie Preprocessor took 170.23 ms. Allocated memory is still 206.0 MB. Free memory was 172.6 MB in the beginning and 167.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:50,308 INFO L168 Benchmark]: RCFGBuilder took 1495.18 ms. Allocated memory was 206.0 MB in the beginning and 240.1 MB in the end (delta: 34.1 MB). Free memory was 167.7 MB in the beginning and 183.7 MB in the end (delta: -16.1 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:50,308 INFO L168 Benchmark]: TraceAbstraction took 33639.43 ms. Allocated memory was 240.1 MB in the beginning and 680.0 MB in the end (delta: 439.9 MB). Free memory was 182.3 MB in the beginning and 109.2 MB in the end (delta: 73.1 MB). Peak memory consumption was 513.0 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:50,312 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.07 ms. Allocated memory is still 140.0 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 891.20 ms. Allocated memory was 140.0 MB in the beginning and 206.0 MB in the end (delta: 66.1 MB). Free memory was 101.1 MB in the beginning and 172.6 MB in the end (delta: -71.5 MB). Peak memory consumption was 33.9 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 170.23 ms. Allocated memory is still 206.0 MB. Free memory was 172.6 MB in the beginning and 167.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1495.18 ms. Allocated memory was 206.0 MB in the beginning and 240.1 MB in the end (delta: 34.1 MB). Free memory was 167.7 MB in the beginning and 183.7 MB in the end (delta: -16.1 MB). Peak memory consumption was 82.4 MB. Max. memory is 7.1 GB. * TraceAbstraction took 33639.43 ms. Allocated memory was 240.1 MB in the beginning and 680.0 MB in the end (delta: 439.9 MB). Free memory was 182.3 MB in the beginning and 109.2 MB in the end (delta: 73.1 MB). Peak memory consumption was 513.0 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: 582]: Loop Invariant Derived loop invariant: ((((((((((a19 == 8 || !(23 <= \old(a1))) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && 9 <= a19) && a10 <= 1)) || !(\old(a10) <= 0)) || !(9 <= \old(a19))) || (((23 <= a1 && a1 <= 23) && a19 == \old(a19)) && a10 == \old(a10))) || !(\old(a1) <= 23)) || !(\old(a19) <= 9)) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && a10 == 2) && a19 <= 9)) || a19 == 6) || (((\old(a1) + 13 <= 0 || 0 == \old(a10)) && 1 <= a10) && a10 <= 1)) || ((\old(a1) + 13 <= 0 || 0 == \old(a10)) && ((23 <= a1 && a19 <= 9) || (9 <= a19 && a19 <= 9))) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 215 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 29.6s, OverallIterations: 13, TraceHistogramMax: 4, AutomataDifference: 21.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 339 SDtfs, 5683 SDslu, 393 SDs, 0 SdLazy, 11003 SolverSat, 1727 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 15.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 203 GetRequests, 106 SyntacticMatches, 0 SemanticMatches, 97 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 85 ImplicationChecksByTransitivity, 1.6s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2386occurred in iteration=12, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 13 MinimizatonAttempts, 2164 StatesRemovedByMinimization, 12 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 127 PreInvPairs, 177 NumberOfFragments, 429 HoareAnnotationTreeSize, 127 FomulaSimplifications, 53815 FormulaSimplificationTreeSizeReduction, 1.6s HoareSimplificationTime, 7 FomulaSimplificationsInter, 15378 FormulaSimplificationTreeSizeReductionInter, 2.1s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.8s SatisfiabilityAnalysisTime, 5.0s InterpolantComputationTime, 2904 NumberOfCodeBlocks, 2904 NumberOfCodeBlocksAsserted, 13 NumberOfCheckSat, 2891 ConstructedInterpolants, 0 QuantifiedInterpolants, 1642097 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 13 InterpolantComputations, 3 PerfectInterpolantSequences, 1877/2130 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...