/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 --rcfgbuilder.size.of.a.code.block SequenceOfStatements --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 enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=NARROWEST --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem14_label20.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 08:49:01,664 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 08:49:01,667 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 08:49:01,694 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 08:49:01,695 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 08:49:01,696 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 08:49:01,697 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 08:49:01,699 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 08:49:01,701 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 08:49:01,701 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 08:49:01,702 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 08:49:01,703 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 08:49:01,704 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 08:49:01,705 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 08:49:01,706 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 08:49:01,707 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 08:49:01,708 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 08:49:01,708 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 08:49:01,710 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 08:49:01,712 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 08:49:01,714 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 08:49:01,715 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 08:49:01,716 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 08:49:01,717 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 08:49:01,719 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 08:49:01,720 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 08:49:01,720 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 08:49:01,721 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 08:49:01,721 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 08:49:01,722 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 08:49:01,722 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 08:49:01,723 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 08:49:01,723 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 08:49:01,724 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 08:49:01,725 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 08:49:01,725 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 08:49:01,726 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 08:49:01,726 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 08:49:01,726 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 08:49:01,727 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 08:49:01,728 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 08:49:01,729 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 [2020-10-13 08:49:01,764 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 08:49:01,764 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 08:49:01,766 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 08:49:01,766 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 08:49:01,766 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 08:49:01,766 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 08:49:01,766 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 08:49:01,767 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 08:49:01,767 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 08:49:01,767 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 08:49:01,767 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 08:49:01,767 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 08:49:01,767 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 08:49:01,768 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 08:49:01,768 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 08:49:01,768 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 08:49:01,768 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 08:49:01,768 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 08:49:01,769 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 08:49:01,769 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 08:49:01,769 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 08:49:01,769 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 08:49:01,769 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 08:49:01,769 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 08:49:01,770 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 08:49:01,770 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 08:49:01,770 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 08:49:01,770 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 08:49:01,770 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 08:49:01,771 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.rcfgbuilder: Size of a code block -> SequenceOfStatements 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;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=NARROWEST;log-additional-information=true;unknown-allowed=true; [2020-10-13 08:49:02,099 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 08:49:02,114 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 08:49:02,117 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 08:49:02,125 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 08:49:02,126 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 08:49:02,127 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem14_label20.c [2020-10-13 08:49:02,204 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58377a5f3/0af2c3389d8944bc991593960cc60ce6/FLAG4839a2a62 [2020-10-13 08:49:02,878 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 08:49:02,879 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem14_label20.c [2020-10-13 08:49:02,892 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58377a5f3/0af2c3389d8944bc991593960cc60ce6/FLAG4839a2a62 [2020-10-13 08:49:03,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/58377a5f3/0af2c3389d8944bc991593960cc60ce6 [2020-10-13 08:49:03,120 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 08:49:03,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 08:49:03,123 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 08:49:03,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 08:49:03,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 08:49:03,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:49:03" (1/1) ... [2020-10-13 08:49:03,131 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1d1dceb6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:49:03, skipping insertion in model container [2020-10-13 08:49:03,131 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 08:49:03" (1/1) ... [2020-10-13 08:49:03,139 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 08:49:03,206 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 08:49:03,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:49:03,805 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 08:49:04,065 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 08:49:04,088 INFO L208 MainTranslator]: Completed translation [2020-10-13 08:49:04,089 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:49:04 WrapperNode [2020-10-13 08:49:04,089 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 08:49:04,090 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 08:49:04,090 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 08:49:04,091 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 08:49:04,110 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:49:04" (1/1) ... [2020-10-13 08:49:04,111 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:49:04" (1/1) ... [2020-10-13 08:49:04,132 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:49:04" (1/1) ... [2020-10-13 08:49:04,133 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:49:04" (1/1) ... [2020-10-13 08:49:04,202 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:49:04" (1/1) ... [2020-10-13 08:49:04,224 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:49:04" (1/1) ... [2020-10-13 08:49:04,232 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:49:04" (1/1) ... [2020-10-13 08:49:04,244 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 08:49:04,245 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 08:49:04,245 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 08:49:04,245 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 08:49:04,246 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:49:04" (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 [2020-10-13 08:49:04,338 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 08:49:04,339 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 08:49:04,340 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 08:49:04,340 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 08:49:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 08:49:04,340 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 08:49:04,341 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 08:49:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 08:49:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 08:49:04,343 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 08:49:04,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 08:49:05,867 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 08:49:05,867 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 08:49:05,874 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:49:05 BoogieIcfgContainer [2020-10-13 08:49:05,875 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 08:49:05,876 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 08:49:05,876 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 08:49:05,880 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 08:49:05,880 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 08:49:03" (1/3) ... [2020-10-13 08:49:05,881 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea3a8f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:49:05, skipping insertion in model container [2020-10-13 08:49:05,881 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 08:49:04" (2/3) ... [2020-10-13 08:49:05,882 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2ea3a8f2 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 08:49:05, skipping insertion in model container [2020-10-13 08:49:05,882 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 08:49:05" (3/3) ... [2020-10-13 08:49:05,884 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem14_label20.c [2020-10-13 08:49:05,895 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 08:49:05,903 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 08:49:05,920 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 08:49:05,950 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 08:49:05,950 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 08:49:05,951 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 08:49:05,951 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 08:49:05,951 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 08:49:05,951 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 08:49:05,951 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 08:49:05,952 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 08:49:05,982 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-13 08:49:05,992 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2020-10-13 08:49:05,993 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:05,994 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:05,994 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:06,002 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:06,003 INFO L82 PathProgramCache]: Analyzing trace with hash -594798021, now seen corresponding path program 1 times [2020-10-13 08:49:06,013 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:06,014 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1253666141] [2020-10-13 08:49:06,014 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:06,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:06,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:06,645 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:06,646 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:49:06,646 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:06,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 459 [2020-10-13 08:49:06,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-13 08:49:06,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 08:49:06,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:49:06,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 08:49:06,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:06,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:06,844 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:06,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:06,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:06,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:06,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 08:49:06,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:06,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:06,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:06,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 08:49:06,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-13 08:49:06,924 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:06,925 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1253666141] [2020-10-13 08:49:06,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 08:49:06,928 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-13 08:49:06,929 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1127178510] [2020-10-13 08:49:06,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-13 08:49:06,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:06,950 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-13 08:49:06,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-13 08:49:06,953 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 4 states. [2020-10-13 08:49:08,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:08,512 INFO L93 Difference]: Finished difference Result 698 states and 1241 transitions. [2020-10-13 08:49:08,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:08,514 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 66 [2020-10-13 08:49:08,515 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:08,532 INFO L225 Difference]: With dead ends: 698 [2020-10-13 08:49:08,532 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:08,541 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 [2020-10-13 08:49:08,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:08,630 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:08,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:08,634 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 604 transitions. [2020-10-13 08:49:08,636 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 604 transitions. Word has length 66 [2020-10-13 08:49:08,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:08,637 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 604 transitions. [2020-10-13 08:49:08,637 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-13 08:49:08,637 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 604 transitions. [2020-10-13 08:49:08,644 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 136 [2020-10-13 08:49:08,644 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:08,644 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, 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] [2020-10-13 08:49:08,645 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 08:49:08,645 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:08,645 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:08,645 INFO L82 PathProgramCache]: Analyzing trace with hash 1981045861, now seen corresponding path program 1 times [2020-10-13 08:49:08,646 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:08,646 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1223864002] [2020-10-13 08:49:08,646 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:08,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:08,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:08,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:09,711 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:09,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:09,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:49:09,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:09,966 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1262 [2020-10-13 08:49:09,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-10-13 08:49:09,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:49:09,967 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:10,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:10,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:10,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:10,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:10,089 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:10,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:10,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:49:10,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:10,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:10,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:10,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:10,090 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:10,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:10,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:10,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:10,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:10,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 70 [2020-10-13 08:49:10,177 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:10,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-13 08:49:10,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:10,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:10,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:10,178 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 64 [2020-10-13 08:49:10,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:10,286 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:10,295 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1223864002] [2020-10-13 08:49:10,295 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:10,296 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:10,297 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1467544853] [2020-10-13 08:49:10,301 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:10,301 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:10,302 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:10,302 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:10,302 INFO L87 Difference]: Start difference. First operand 374 states and 604 transitions. Second operand 5 states. [2020-10-13 08:49:11,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:11,521 INFO L93 Difference]: Finished difference Result 781 states and 1250 transitions. [2020-10-13 08:49:11,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:11,521 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 135 [2020-10-13 08:49:11,522 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:11,526 INFO L225 Difference]: With dead ends: 781 [2020-10-13 08:49:11,526 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:11,528 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:11,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:11,552 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:11,552 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:11,554 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 550 transitions. [2020-10-13 08:49:11,555 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 550 transitions. Word has length 135 [2020-10-13 08:49:11,555 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:11,555 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 550 transitions. [2020-10-13 08:49:11,556 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:11,556 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 550 transitions. [2020-10-13 08:49:11,561 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-10-13 08:49:11,561 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:11,562 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, 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] [2020-10-13 08:49:11,562 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 08:49:11,562 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:11,562 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:11,563 INFO L82 PathProgramCache]: Analyzing trace with hash 242692798, now seen corresponding path program 1 times [2020-10-13 08:49:11,563 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:11,563 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [680252658] [2020-10-13 08:49:11,563 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:11,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:11,623 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:11,699 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:12,240 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:12,601 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:12,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 146 [2020-10-13 08:49:12,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:12,602 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-10-13 08:49:12,602 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:12,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:12,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-13 08:49:12,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 08:49:12,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:12,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:12,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:12,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:12,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:12,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:12,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:12,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:49:12,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:12,749 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:12,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:12,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:12,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:12,762 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:12,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:12,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:12,845 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:12,845 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-13 08:49:12,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:12,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-13 08:49:12,846 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:12,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 08:49:12,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:12,905 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:12,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [680252658] [2020-10-13 08:49:12,906 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:12,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:12,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [665116562] [2020-10-13 08:49:12,907 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:12,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:12,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:12,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:12,907 INFO L87 Difference]: Start difference. First operand 374 states and 550 transitions. Second operand 5 states. [2020-10-13 08:49:13,910 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:13,910 INFO L93 Difference]: Finished difference Result 781 states and 1142 transitions. [2020-10-13 08:49:13,911 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:13,911 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 136 [2020-10-13 08:49:13,912 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:13,915 INFO L225 Difference]: With dead ends: 781 [2020-10-13 08:49:13,915 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:13,917 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:13,917 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:13,933 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:13,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:13,936 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 490 transitions. [2020-10-13 08:49:13,936 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 490 transitions. Word has length 136 [2020-10-13 08:49:13,939 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:13,939 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 490 transitions. [2020-10-13 08:49:13,939 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:13,940 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 490 transitions. [2020-10-13 08:49:13,942 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 140 [2020-10-13 08:49:13,943 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:13,943 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, 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] [2020-10-13 08:49:13,943 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 08:49:13,943 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:13,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:13,944 INFO L82 PathProgramCache]: Analyzing trace with hash -427181667, now seen corresponding path program 1 times [2020-10-13 08:49:13,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:13,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1663521850] [2020-10-13 08:49:13,945 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:13,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:13,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:14,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:14,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:15,303 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:15,304 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-10-13 08:49:15,304 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:15,304 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1333 [2020-10-13 08:49:15,304 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:49:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 83 [2020-10-13 08:49:15,305 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 57 [2020-10-13 08:49:15,305 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:15,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:15,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:15,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:15,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:15,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:15,423 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:15,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:15,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:15,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:15,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:15,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:15,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:15,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:15,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:15,498 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:15,498 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-10-13 08:49:15,499 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:15,499 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-13 08:49:15,499 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:15,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:15,499 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:15,500 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-13 08:49:15,500 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:15,570 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:15,571 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1663521850] [2020-10-13 08:49:15,571 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:15,571 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:49:15,571 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1511951879] [2020-10-13 08:49:15,572 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:49:15,572 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:15,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:49:15,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:49:15,573 INFO L87 Difference]: Start difference. First operand 374 states and 490 transitions. Second operand 8 states. [2020-10-13 08:49:16,568 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:16,568 INFO L93 Difference]: Finished difference Result 802 states and 1043 transitions. [2020-10-13 08:49:16,569 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:49:16,569 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 139 [2020-10-13 08:49:16,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:16,572 INFO L225 Difference]: With dead ends: 802 [2020-10-13 08:49:16,573 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:16,575 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:49:16,576 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:16,590 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:16,591 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:16,593 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 474 transitions. [2020-10-13 08:49:16,593 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 474 transitions. Word has length 139 [2020-10-13 08:49:16,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:16,594 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 474 transitions. [2020-10-13 08:49:16,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:49:16,594 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 474 transitions. [2020-10-13 08:49:16,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-13 08:49:16,597 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:16,597 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, 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] [2020-10-13 08:49:16,597 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 08:49:16,597 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:16,598 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:16,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1833059722, now seen corresponding path program 1 times [2020-10-13 08:49:16,598 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:16,598 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [215959899] [2020-10-13 08:49:16,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:16,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:16,638 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:16,714 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:17,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-13 08:49:17,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:17,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 809 [2020-10-13 08:49:17,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:17,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:17,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 84 [2020-10-13 08:49:17,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-13 08:49:17,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:17,564 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:17,566 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:17,567 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,568 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:17,569 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:17,569 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:17,569 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:17,569 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:17,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:17,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:17,570 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:17,570 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:17,583 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:17,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:17,605 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:17,646 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:17,647 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 75 [2020-10-13 08:49:17,647 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:17,647 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 08:49:17,647 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:17,647 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:17,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:17,648 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 08:49:17,648 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:17,723 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:17,723 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [215959899] [2020-10-13 08:49:17,724 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:17,724 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:17,724 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [411941711] [2020-10-13 08:49:17,725 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:17,725 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:17,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:17,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:17,726 INFO L87 Difference]: Start difference. First operand 374 states and 474 transitions. Second operand 5 states. [2020-10-13 08:49:18,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:18,527 INFO L93 Difference]: Finished difference Result 766 states and 975 transitions. [2020-10-13 08:49:18,528 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:18,528 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 140 [2020-10-13 08:49:18,529 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:18,531 INFO L225 Difference]: With dead ends: 766 [2020-10-13 08:49:18,531 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:18,533 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:18,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:18,544 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:18,544 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:18,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 472 transitions. [2020-10-13 08:49:18,546 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 472 transitions. Word has length 140 [2020-10-13 08:49:18,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:18,547 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 472 transitions. [2020-10-13 08:49:18,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:18,547 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 472 transitions. [2020-10-13 08:49:18,549 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 147 [2020-10-13 08:49:18,549 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:18,549 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, 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] [2020-10-13 08:49:18,550 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 08:49:18,550 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:18,550 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:18,550 INFO L82 PathProgramCache]: Analyzing trace with hash 701995530, now seen corresponding path program 1 times [2020-10-13 08:49:18,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:18,551 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656785733] [2020-10-13 08:49:18,551 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:18,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:18,595 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:18,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:19,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:19,402 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:19,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 156 [2020-10-13 08:49:19,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:19,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 822 [2020-10-13 08:49:19,403 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:19,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:19,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-13 08:49:19,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 34 [2020-10-13 08:49:19,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:19,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:19,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:19,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:19,481 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:19,481 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:19,482 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:19,482 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:19,482 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:19,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:19,483 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:19,483 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:19,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:19,507 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:19,516 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:19,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:19,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 81 [2020-10-13 08:49:19,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:19,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 08:49:19,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:19,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:19,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:19,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-10-13 08:49:19,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:19,669 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:19,670 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656785733] [2020-10-13 08:49:19,670 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:19,670 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:19,671 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1074610108] [2020-10-13 08:49:19,671 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:19,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:19,672 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:19,672 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:19,672 INFO L87 Difference]: Start difference. First operand 374 states and 472 transitions. Second operand 5 states. [2020-10-13 08:49:20,498 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:20,498 INFO L93 Difference]: Finished difference Result 779 states and 984 transitions. [2020-10-13 08:49:20,499 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:20,499 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 146 [2020-10-13 08:49:20,500 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:20,502 INFO L225 Difference]: With dead ends: 779 [2020-10-13 08:49:20,502 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:20,503 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:20,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:20,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:20,520 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:20,522 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 470 transitions. [2020-10-13 08:49:20,522 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 470 transitions. Word has length 146 [2020-10-13 08:49:20,523 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:20,523 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 470 transitions. [2020-10-13 08:49:20,523 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:20,523 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 470 transitions. [2020-10-13 08:49:20,526 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-13 08:49:20,526 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:20,527 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, 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] [2020-10-13 08:49:20,527 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 08:49:20,527 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:20,527 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:20,528 INFO L82 PathProgramCache]: Analyzing trace with hash 983506601, now seen corresponding path program 1 times [2020-10-13 08:49:20,528 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:20,528 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1629910800] [2020-10-13 08:49:20,528 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:20,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:20,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:20,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:20,773 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:21,729 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:21,730 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 159 [2020-10-13 08:49:21,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:21,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1173 [2020-10-13 08:49:21,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:21,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:21,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 93 [2020-10-13 08:49:21,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-10-13 08:49:21,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:21,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:21,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:21,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:21,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:21,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:21,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:21,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:21,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:21,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:21,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:21,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:21,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:21,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:21,844 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:21,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:21,913 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:21,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-13 08:49:21,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:21,914 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 08:49:21,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:21,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:21,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:21,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-13 08:49:21,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:21,969 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:21,969 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1629910800] [2020-10-13 08:49:21,969 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:21,969 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:21,972 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2078542505] [2020-10-13 08:49:21,974 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:21,975 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:21,975 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:21,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:21,976 INFO L87 Difference]: Start difference. First operand 374 states and 470 transitions. Second operand 5 states. [2020-10-13 08:49:22,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:22,760 INFO L93 Difference]: Finished difference Result 760 states and 961 transitions. [2020-10-13 08:49:22,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:22,761 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-10-13 08:49:22,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:22,764 INFO L225 Difference]: With dead ends: 760 [2020-10-13 08:49:22,764 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:22,767 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:22,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:22,780 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:22,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:22,782 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 468 transitions. [2020-10-13 08:49:22,782 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 468 transitions. Word has length 149 [2020-10-13 08:49:22,782 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:22,783 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 468 transitions. [2020-10-13 08:49:22,783 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:22,783 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 468 transitions. [2020-10-13 08:49:22,784 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-10-13 08:49:22,785 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:22,785 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, 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] [2020-10-13 08:49:22,785 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 08:49:22,785 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:22,786 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:22,786 INFO L82 PathProgramCache]: Analyzing trace with hash 1753321886, now seen corresponding path program 1 times [2020-10-13 08:49:22,787 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:22,787 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [203311774] [2020-10-13 08:49:22,787 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:22,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:22,828 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:22,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:23,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:23,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:23,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 162 [2020-10-13 08:49:23,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:23,821 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1006 [2020-10-13 08:49:23,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:23,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:49:23,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-13 08:49:23,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 54 [2020-10-13 08:49:23,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:24,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:24,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:24,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:24,199 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:24,199 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:24,199 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:24,199 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:24,199 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:24,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:24,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:24,200 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:24,200 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:24,222 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:24,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:24,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:24,291 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:24,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-13 08:49:24,291 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:24,291 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 54 [2020-10-13 08:49:24,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:24,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-13 08:49:24,292 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:24,390 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:24,390 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [203311774] [2020-10-13 08:49:24,391 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:24,391 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:49:24,391 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1395011239] [2020-10-13 08:49:24,392 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:49:24,392 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:24,393 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:49:24,393 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:49:24,393 INFO L87 Difference]: Start difference. First operand 374 states and 468 transitions. Second operand 8 states. [2020-10-13 08:49:25,521 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:25,522 INFO L93 Difference]: Finished difference Result 799 states and 996 transitions. [2020-10-13 08:49:25,522 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:49:25,523 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 152 [2020-10-13 08:49:25,523 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:25,528 INFO L225 Difference]: With dead ends: 799 [2020-10-13 08:49:25,528 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:25,530 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:49:25,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:25,545 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:25,545 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:25,548 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 464 transitions. [2020-10-13 08:49:25,548 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 464 transitions. Word has length 152 [2020-10-13 08:49:25,549 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:25,549 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 464 transitions. [2020-10-13 08:49:25,549 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:49:25,549 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 464 transitions. [2020-10-13 08:49:25,552 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 159 [2020-10-13 08:49:25,552 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:25,553 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, 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] [2020-10-13 08:49:25,553 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 08:49:25,553 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:25,554 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:25,554 INFO L82 PathProgramCache]: Analyzing trace with hash -129392334, now seen corresponding path program 1 times [2020-10-13 08:49:25,555 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:25,555 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [683054112] [2020-10-13 08:49:25,555 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:25,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:25,614 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:25,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:26,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:26,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:26,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 168 [2020-10-13 08:49:26,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:26,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 991 [2020-10-13 08:49:26,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-13 08:49:26,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 08:49:26,588 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:26,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:26,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:26,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:26,669 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:26,669 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:26,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:26,670 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:26,670 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:26,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:26,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 08:49:26,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:26,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:26,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:26,762 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:26,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 93 [2020-10-13 08:49:26,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:26,763 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 08:49:26,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:26,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:26,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:26,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 87 [2020-10-13 08:49:26,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:26,862 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:26,869 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [683054112] [2020-10-13 08:49:26,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:26,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:26,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1773193886] [2020-10-13 08:49:26,872 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:26,872 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:26,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:26,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:26,873 INFO L87 Difference]: Start difference. First operand 374 states and 464 transitions. Second operand 5 states. [2020-10-13 08:49:27,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:27,999 INFO L93 Difference]: Finished difference Result 763 states and 952 transitions. [2020-10-13 08:49:28,000 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:28,000 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 158 [2020-10-13 08:49:28,001 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:28,004 INFO L225 Difference]: With dead ends: 763 [2020-10-13 08:49:28,004 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:28,008 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:28,009 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:28,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:28,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:28,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 462 transitions. [2020-10-13 08:49:28,024 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 462 transitions. Word has length 158 [2020-10-13 08:49:28,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:28,025 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 462 transitions. [2020-10-13 08:49:28,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:28,025 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 462 transitions. [2020-10-13 08:49:28,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-13 08:49:28,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:28,027 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, 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] [2020-10-13 08:49:28,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 08:49:28,028 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:28,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:28,029 INFO L82 PathProgramCache]: Analyzing trace with hash -1583939314, now seen corresponding path program 1 times [2020-10-13 08:49:28,029 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:28,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [71093223] [2020-10-13 08:49:28,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:28,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:28,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:28,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:28,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:28,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:28,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 08:49:28,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:28,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 813 [2020-10-13 08:49:28,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:28,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:28,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 08:49:28,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 28 [2020-10-13 08:49:28,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:28,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:28,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:28,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:28,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:28,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:28,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:28,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:28,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:28,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:28,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:28,947 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:28,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:28,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:28,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:28,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:29,033 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:29,034 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 95 [2020-10-13 08:49:29,034 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:29,035 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 08:49:29,035 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:29,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:29,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:29,036 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 89 [2020-10-13 08:49:29,036 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:29,103 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:29,104 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [71093223] [2020-10-13 08:49:29,104 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:29,104 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:29,105 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [527516908] [2020-10-13 08:49:29,105 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:29,105 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:29,105 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:29,106 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:29,106 INFO L87 Difference]: Start difference. First operand 374 states and 462 transitions. Second operand 5 states. [2020-10-13 08:49:29,870 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:29,870 INFO L93 Difference]: Finished difference Result 773 states and 958 transitions. [2020-10-13 08:49:29,870 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:29,871 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 160 [2020-10-13 08:49:29,871 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:29,873 INFO L225 Difference]: With dead ends: 773 [2020-10-13 08:49:29,873 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:29,875 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:29,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:29,884 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:29,884 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:29,886 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 460 transitions. [2020-10-13 08:49:29,886 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 460 transitions. Word has length 160 [2020-10-13 08:49:29,887 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:29,887 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 460 transitions. [2020-10-13 08:49:29,887 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:29,887 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 460 transitions. [2020-10-13 08:49:29,889 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-10-13 08:49:29,889 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:29,889 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, 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] [2020-10-13 08:49:29,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 08:49:29,890 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:29,890 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:29,890 INFO L82 PathProgramCache]: Analyzing trace with hash -1322342831, now seen corresponding path program 1 times [2020-10-13 08:49:29,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:29,891 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1279327137] [2020-10-13 08:49:29,891 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:29,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:29,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:29,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:30,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:30,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:30,981 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-10-13 08:49:30,981 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:30,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1067 [2020-10-13 08:49:30,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:30,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:30,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 105 [2020-10-13 08:49:30,982 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 08:49:30,982 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:31,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:31,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:31,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:31,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:31,044 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:31,044 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:31,044 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:31,044 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:31,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:31,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:31,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:31,045 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:31,057 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:31,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:31,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:31,132 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:31,132 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-13 08:49:31,132 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:31,133 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-13 08:49:31,133 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:31,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:31,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:31,133 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 90 [2020-10-13 08:49:31,133 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:31,205 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:31,205 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1279327137] [2020-10-13 08:49:31,206 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:31,206 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:31,206 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1834292629] [2020-10-13 08:49:31,207 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:31,207 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:31,207 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:31,207 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:31,208 INFO L87 Difference]: Start difference. First operand 374 states and 460 transitions. Second operand 5 states. [2020-10-13 08:49:31,908 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:31,909 INFO L93 Difference]: Finished difference Result 761 states and 942 transitions. [2020-10-13 08:49:31,910 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:31,910 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 161 [2020-10-13 08:49:31,911 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:31,912 INFO L225 Difference]: With dead ends: 761 [2020-10-13 08:49:31,913 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:31,915 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:31,916 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:31,928 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:31,928 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:31,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 458 transitions. [2020-10-13 08:49:31,931 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 458 transitions. Word has length 161 [2020-10-13 08:49:31,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:31,932 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 458 transitions. [2020-10-13 08:49:31,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:31,932 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 458 transitions. [2020-10-13 08:49:31,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-13 08:49:31,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:31,935 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, 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] [2020-10-13 08:49:31,935 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 08:49:31,936 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:31,936 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:31,936 INFO L82 PathProgramCache]: Analyzing trace with hash 1836127113, now seen corresponding path program 1 times [2020-10-13 08:49:31,936 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:31,937 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1154900177] [2020-10-13 08:49:31,937 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:31,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:31,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:32,005 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:32,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:32,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:32,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 175 [2020-10-13 08:49:32,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:32,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1001 [2020-10-13 08:49:32,962 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:32,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:32,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 109 [2020-10-13 08:49:32,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-10-13 08:49:32,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:33,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:33,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:33,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:33,071 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:33,071 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:33,072 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:33,072 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 08:49:33,072 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:33,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:33,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:33,073 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:33,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:33,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:33,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:33,119 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:33,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:33,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-10-13 08:49:33,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:33,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 08:49:33,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:33,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:33,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:33,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 94 [2020-10-13 08:49:33,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:33,274 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:33,275 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1154900177] [2020-10-13 08:49:33,275 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:33,275 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:33,276 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306764774] [2020-10-13 08:49:33,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:33,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:33,277 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:33,277 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:33,277 INFO L87 Difference]: Start difference. First operand 374 states and 458 transitions. Second operand 5 states. [2020-10-13 08:49:34,078 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:34,079 INFO L93 Difference]: Finished difference Result 771 states and 948 transitions. [2020-10-13 08:49:34,081 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:34,081 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 165 [2020-10-13 08:49:34,082 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:34,084 INFO L225 Difference]: With dead ends: 771 [2020-10-13 08:49:34,084 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:34,086 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:34,087 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:34,098 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:34,099 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:34,100 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 456 transitions. [2020-10-13 08:49:34,101 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 456 transitions. Word has length 165 [2020-10-13 08:49:34,101 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:34,101 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 456 transitions. [2020-10-13 08:49:34,101 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:34,101 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 456 transitions. [2020-10-13 08:49:34,103 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-10-13 08:49:34,103 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:34,104 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, 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] [2020-10-13 08:49:34,104 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 08:49:34,104 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:34,104 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:34,104 INFO L82 PathProgramCache]: Analyzing trace with hash -1103575515, now seen corresponding path program 1 times [2020-10-13 08:49:34,105 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:34,105 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899487470] [2020-10-13 08:49:34,105 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:34,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:34,185 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:34,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:34,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:35,099 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:35,100 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 177 [2020-10-13 08:49:35,100 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:35,100 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 947 [2020-10-13 08:49:35,100 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:35,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:35,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 111 [2020-10-13 08:49:35,101 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-13 08:49:35,101 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:35,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:35,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:35,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:35,161 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:35,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:35,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:35,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:35,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:35,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:35,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:35,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:35,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:35,177 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:35,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:35,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:35,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:35,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 102 [2020-10-13 08:49:35,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:35,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-13 08:49:35,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:35,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:35,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:35,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 96 [2020-10-13 08:49:35,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:35,330 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:35,330 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899487470] [2020-10-13 08:49:35,330 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:35,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:35,331 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [274508418] [2020-10-13 08:49:35,332 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:35,332 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:35,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:35,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:35,333 INFO L87 Difference]: Start difference. First operand 374 states and 456 transitions. Second operand 5 states. [2020-10-13 08:49:36,123 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:36,123 INFO L93 Difference]: Finished difference Result 775 states and 948 transitions. [2020-10-13 08:49:36,124 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:36,124 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-10-13 08:49:36,124 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:36,127 INFO L225 Difference]: With dead ends: 775 [2020-10-13 08:49:36,127 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:36,128 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:36,129 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:36,138 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:36,139 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:36,140 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 454 transitions. [2020-10-13 08:49:36,140 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 454 transitions. Word has length 167 [2020-10-13 08:49:36,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:36,141 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 454 transitions. [2020-10-13 08:49:36,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:36,141 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 454 transitions. [2020-10-13 08:49:36,143 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-13 08:49:36,143 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:36,144 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, 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] [2020-10-13 08:49:36,144 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 08:49:36,144 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:36,144 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:36,145 INFO L82 PathProgramCache]: Analyzing trace with hash 619448410, now seen corresponding path program 1 times [2020-10-13 08:49:36,145 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:36,145 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2082799851] [2020-10-13 08:49:36,145 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:36,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:36,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:36,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:36,576 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:36,969 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:36,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 180 [2020-10-13 08:49:36,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:36,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 802 [2020-10-13 08:49:36,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:36,970 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:36,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-13 08:49:36,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 08:49:36,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:37,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:37,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:37,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:37,030 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:37,030 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:37,030 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:37,030 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:37,031 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:37,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:37,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:37,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:37,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:37,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:37,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:37,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:37,119 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:37,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 105 [2020-10-13 08:49:37,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:37,120 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-13 08:49:37,120 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:37,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:37,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:37,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-13 08:49:37,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:37,191 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:37,192 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2082799851] [2020-10-13 08:49:37,192 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:37,192 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:37,193 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1604317053] [2020-10-13 08:49:37,193 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:37,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:37,194 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:37,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:37,194 INFO L87 Difference]: Start difference. First operand 374 states and 454 transitions. Second operand 5 states. [2020-10-13 08:49:37,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:37,991 INFO L93 Difference]: Finished difference Result 774 states and 943 transitions. [2020-10-13 08:49:37,991 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:37,991 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 170 [2020-10-13 08:49:37,992 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:37,994 INFO L225 Difference]: With dead ends: 774 [2020-10-13 08:49:37,994 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:37,995 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:37,996 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:38,005 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:38,006 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:38,007 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 452 transitions. [2020-10-13 08:49:38,008 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 452 transitions. Word has length 170 [2020-10-13 08:49:38,008 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:38,008 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 452 transitions. [2020-10-13 08:49:38,008 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:38,008 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 452 transitions. [2020-10-13 08:49:38,011 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-10-13 08:49:38,011 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:38,011 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, 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] [2020-10-13 08:49:38,011 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 08:49:38,012 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:38,012 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:38,012 INFO L82 PathProgramCache]: Analyzing trace with hash 1470309213, now seen corresponding path program 1 times [2020-10-13 08:49:38,012 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:38,013 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1050737304] [2020-10-13 08:49:38,013 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:38,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:38,074 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:38,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:38,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:39,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:39,442 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-10-13 08:49:39,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:39,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1382 [2020-10-13 08:49:39,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:39,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:49:39,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 115 [2020-10-13 08:49:39,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-13 08:49:39,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:39,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:39,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:39,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:39,756 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:39,757 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:39,757 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:39,757 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:39,757 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:39,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:39,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:39,758 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:39,758 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:39,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:39,792 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:39,801 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:39,864 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:39,864 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 106 [2020-10-13 08:49:39,865 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:39,865 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 72 [2020-10-13 08:49:39,865 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:39,865 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 100 [2020-10-13 08:49:39,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:39,927 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:39,927 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1050737304] [2020-10-13 08:49:39,927 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:39,927 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:49:39,927 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [753410256] [2020-10-13 08:49:39,928 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:49:39,928 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:39,928 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:49:39,928 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:49:39,929 INFO L87 Difference]: Start difference. First operand 374 states and 452 transitions. Second operand 8 states. [2020-10-13 08:49:40,906 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:40,906 INFO L93 Difference]: Finished difference Result 798 states and 968 transitions. [2020-10-13 08:49:40,909 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 08:49:40,909 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 171 [2020-10-13 08:49:40,909 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:40,911 INFO L225 Difference]: With dead ends: 798 [2020-10-13 08:49:40,912 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:40,913 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:49:40,914 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:40,923 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:40,923 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:40,925 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 448 transitions. [2020-10-13 08:49:40,925 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 448 transitions. Word has length 171 [2020-10-13 08:49:40,925 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:40,926 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 448 transitions. [2020-10-13 08:49:40,926 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:49:40,926 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 448 transitions. [2020-10-13 08:49:40,928 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-13 08:49:40,928 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:40,928 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, 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] [2020-10-13 08:49:40,929 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 08:49:40,929 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:40,929 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:40,929 INFO L82 PathProgramCache]: Analyzing trace with hash -1676666063, now seen corresponding path program 1 times [2020-10-13 08:49:40,930 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:40,930 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [386870101] [2020-10-13 08:49:40,930 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:40,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:40,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:41,006 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:41,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:41,684 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:41,685 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-10-13 08:49:41,685 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:41,685 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 728 [2020-10-13 08:49:41,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:41,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:41,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 121 [2020-10-13 08:49:41,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-13 08:49:41,685 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:41,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:41,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:41,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:41,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:41,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:41,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:41,742 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:41,742 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:41,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:41,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:41,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:41,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:41,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:41,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:41,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:41,821 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:41,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 112 [2020-10-13 08:49:41,822 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:41,822 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-13 08:49:41,822 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:41,822 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:41,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-13 08:49:41,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:41,911 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:41,912 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [386870101] [2020-10-13 08:49:41,912 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:41,912 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:41,912 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1159145541] [2020-10-13 08:49:41,913 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:41,913 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:41,914 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:41,914 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:41,914 INFO L87 Difference]: Start difference. First operand 374 states and 448 transitions. Second operand 5 states. [2020-10-13 08:49:42,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:42,613 INFO L93 Difference]: Finished difference Result 780 states and 937 transitions. [2020-10-13 08:49:42,617 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:42,617 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 177 [2020-10-13 08:49:42,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:42,619 INFO L225 Difference]: With dead ends: 780 [2020-10-13 08:49:42,619 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:42,621 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:42,622 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:42,631 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:42,631 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:42,633 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 446 transitions. [2020-10-13 08:49:42,633 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 446 transitions. Word has length 177 [2020-10-13 08:49:42,633 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:42,633 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 446 transitions. [2020-10-13 08:49:42,633 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:42,634 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 446 transitions. [2020-10-13 08:49:42,635 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-13 08:49:42,635 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:42,635 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, 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] [2020-10-13 08:49:42,636 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 08:49:42,636 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:42,636 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:42,636 INFO L82 PathProgramCache]: Analyzing trace with hash -1942448735, now seen corresponding path program 1 times [2020-10-13 08:49:42,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:42,637 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [778867412] [2020-10-13 08:49:42,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:42,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:42,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:42,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:43,200 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:43,861 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:43,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-13 08:49:43,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:43,862 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1195 [2020-10-13 08:49:43,862 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:43,862 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 7 [2020-10-13 08:49:43,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-10-13 08:49:43,863 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-13 08:49:43,863 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:43,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:43,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:43,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:43,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:43,972 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:43,972 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:43,972 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:49:43,973 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:43,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:43,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:43,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:43,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:43,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:44,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:44,032 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:44,106 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:44,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 120 [2020-10-13 08:49:44,107 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:44,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 89 [2020-10-13 08:49:44,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:44,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:44,109 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 114 [2020-10-13 08:49:44,109 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:44,228 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:44,229 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [778867412] [2020-10-13 08:49:44,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:44,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-13 08:49:44,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [905526998] [2020-10-13 08:49:44,230 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-13 08:49:44,230 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:44,230 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-13 08:49:44,231 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=36, Unknown=0, NotChecked=0, Total=56 [2020-10-13 08:49:44,231 INFO L87 Difference]: Start difference. First operand 374 states and 446 transitions. Second operand 8 states. [2020-10-13 08:49:45,106 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:45,106 INFO L93 Difference]: Finished difference Result 807 states and 960 transitions. [2020-10-13 08:49:45,107 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 08:49:45,107 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 185 [2020-10-13 08:49:45,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:45,109 INFO L225 Difference]: With dead ends: 807 [2020-10-13 08:49:45,109 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:45,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=52, Invalid=80, Unknown=0, NotChecked=0, Total=132 [2020-10-13 08:49:45,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:45,120 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:45,120 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:45,122 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 444 transitions. [2020-10-13 08:49:45,122 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 444 transitions. Word has length 185 [2020-10-13 08:49:45,122 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:45,122 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 444 transitions. [2020-10-13 08:49:45,122 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-13 08:49:45,123 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 444 transitions. [2020-10-13 08:49:45,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-13 08:49:45,124 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:45,124 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, 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, 1, 1, 1] [2020-10-13 08:49:45,124 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-13 08:49:45,125 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:45,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:45,125 INFO L82 PathProgramCache]: Analyzing trace with hash -1188269395, now seen corresponding path program 1 times [2020-10-13 08:49:45,125 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:45,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [259185581] [2020-10-13 08:49:45,126 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:45,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:45,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:45,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:45,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:45,980 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:45,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-10-13 08:49:45,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:45,981 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 824 [2020-10-13 08:49:45,981 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 139 [2020-10-13 08:49:45,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-13 08:49:45,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:46,056 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:46,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:46,060 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:46,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:46,062 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:46,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:46,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 08:49:46,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:46,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:46,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:46,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:46,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:46,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:46,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:46,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:46,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:46,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-13 08:49:46,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:46,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 75 [2020-10-13 08:49:46,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:46,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:46,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:46,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-13 08:49:46,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:46,253 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:46,253 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [259185581] [2020-10-13 08:49:46,253 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:46,253 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:46,254 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1463277818] [2020-10-13 08:49:46,254 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:46,254 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:46,255 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:46,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:46,255 INFO L87 Difference]: Start difference. First operand 374 states and 444 transitions. Second operand 5 states. [2020-10-13 08:49:47,007 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:47,007 INFO L93 Difference]: Finished difference Result 762 states and 911 transitions. [2020-10-13 08:49:47,008 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:47,008 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 195 [2020-10-13 08:49:47,009 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:47,011 INFO L225 Difference]: With dead ends: 762 [2020-10-13 08:49:47,011 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:47,013 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:47,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:47,023 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:47,023 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:47,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 442 transitions. [2020-10-13 08:49:47,025 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 442 transitions. Word has length 195 [2020-10-13 08:49:47,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:47,025 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 442 transitions. [2020-10-13 08:49:47,025 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:47,025 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 442 transitions. [2020-10-13 08:49:47,027 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-13 08:49:47,027 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:47,027 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:47,028 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-13 08:49:47,028 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:47,028 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:47,028 INFO L82 PathProgramCache]: Analyzing trace with hash -1904534098, now seen corresponding path program 1 times [2020-10-13 08:49:47,028 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:47,029 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1463391560] [2020-10-13 08:49:47,029 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:47,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:47,082 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:47,151 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:47,627 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:47,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:47,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-13 08:49:47,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:47,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 898 [2020-10-13 08:49:47,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 152 [2020-10-13 08:49:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 08:49:47,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:48,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:48,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:48,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:48,060 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:49:48,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:48,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:48,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:48,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:48,100 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:48,115 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:48,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:48,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 08:49:48,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:48,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 86 [2020-10-13 08:49:48,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:48,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:48,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:48,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-13 08:49:48,189 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:48,268 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:48,268 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1463391560] [2020-10-13 08:49:48,269 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:48,269 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:48,269 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1049705508] [2020-10-13 08:49:48,270 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:48,270 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:48,270 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:48,271 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:48,271 INFO L87 Difference]: Start difference. First operand 374 states and 442 transitions. Second operand 5 states. [2020-10-13 08:49:49,008 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:49,008 INFO L93 Difference]: Finished difference Result 768 states and 913 transitions. [2020-10-13 08:49:49,009 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:49,009 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 208 [2020-10-13 08:49:49,010 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:49,011 INFO L225 Difference]: With dead ends: 768 [2020-10-13 08:49:49,012 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:49,016 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:49,016 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:49,026 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:49,026 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:49,028 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 440 transitions. [2020-10-13 08:49:49,028 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 440 transitions. Word has length 208 [2020-10-13 08:49:49,028 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:49,028 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 440 transitions. [2020-10-13 08:49:49,029 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:49,029 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 440 transitions. [2020-10-13 08:49:49,030 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-13 08:49:49,030 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:49,030 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:49,031 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-13 08:49:49,031 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:49,031 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:49,031 INFO L82 PathProgramCache]: Analyzing trace with hash -356772470, now seen corresponding path program 1 times [2020-10-13 08:49:49,031 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:49,032 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [432534433] [2020-10-13 08:49:49,032 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:49,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:49,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:49,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:49,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:49,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:49,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 220 [2020-10-13 08:49:49,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:49,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 734 [2020-10-13 08:49:49,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:49,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:49,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 154 [2020-10-13 08:49:49,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 08:49:49,804 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:49,865 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:49,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:49,867 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:49,868 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:49,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:49,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:49,869 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-13 08:49:49,869 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:49,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:49,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:49,880 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:49,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:49,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:49,983 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:49,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-13 08:49:49,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:49,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-13 08:49:49,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:49,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:49,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:49,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-13 08:49:49,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:50,090 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:50,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [432534433] [2020-10-13 08:49:50,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:50,091 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:50,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234818579] [2020-10-13 08:49:50,091 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:50,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:50,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:50,092 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:50,092 INFO L87 Difference]: Start difference. First operand 374 states and 440 transitions. Second operand 5 states. [2020-10-13 08:49:50,914 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:50,914 INFO L93 Difference]: Finished difference Result 756 states and 897 transitions. [2020-10-13 08:49:50,917 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:50,917 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2020-10-13 08:49:50,918 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:50,919 INFO L225 Difference]: With dead ends: 756 [2020-10-13 08:49:50,919 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:50,920 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:50,921 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:50,930 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:50,930 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:50,931 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 438 transitions. [2020-10-13 08:49:50,932 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 438 transitions. Word has length 210 [2020-10-13 08:49:50,932 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:50,932 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 438 transitions. [2020-10-13 08:49:50,932 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:50,932 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 438 transitions. [2020-10-13 08:49:50,934 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-10-13 08:49:50,934 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:50,934 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:50,934 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-13 08:49:50,935 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:50,935 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:50,935 INFO L82 PathProgramCache]: Analyzing trace with hash 77823841, now seen corresponding path program 1 times [2020-10-13 08:49:50,935 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:50,935 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [887767451] [2020-10-13 08:49:50,936 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:50,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:51,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:51,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:51,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:51,788 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 227 [2020-10-13 08:49:51,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:51,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 818 [2020-10-13 08:49:51,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:51,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:51,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 161 [2020-10-13 08:49:51,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-10-13 08:49:51,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:51,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:51,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:51,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:51,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:51,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:51,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:51,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:51,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:51,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:51,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:51,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:51,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:51,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:51,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:52,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:52,014 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 152 [2020-10-13 08:49:52,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:52,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 107 [2020-10-13 08:49:52,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:52,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:52,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:52,015 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 146 [2020-10-13 08:49:52,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:52,098 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:52,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [887767451] [2020-10-13 08:49:52,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:52,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:52,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [29188410] [2020-10-13 08:49:52,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:52,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:52,101 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:52,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:52,101 INFO L87 Difference]: Start difference. First operand 374 states and 438 transitions. Second operand 5 states. [2020-10-13 08:49:52,841 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:52,841 INFO L93 Difference]: Finished difference Result 758 states and 895 transitions. [2020-10-13 08:49:52,842 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:52,842 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 217 [2020-10-13 08:49:52,843 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:52,845 INFO L225 Difference]: With dead ends: 758 [2020-10-13 08:49:52,845 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:52,846 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:52,846 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:52,855 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:52,855 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:52,856 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 436 transitions. [2020-10-13 08:49:52,857 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 436 transitions. Word has length 217 [2020-10-13 08:49:52,857 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:52,857 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 436 transitions. [2020-10-13 08:49:52,857 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:52,857 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 436 transitions. [2020-10-13 08:49:52,858 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 220 [2020-10-13 08:49:52,859 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:52,859 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:52,859 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-13 08:49:52,859 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:52,859 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:52,860 INFO L82 PathProgramCache]: Analyzing trace with hash 753156605, now seen corresponding path program 1 times [2020-10-13 08:49:52,860 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:52,860 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [170708861] [2020-10-13 08:49:52,860 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:52,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:52,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:52,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:53,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:53,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:53,792 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 229 [2020-10-13 08:49:53,792 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:53,792 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 896 [2020-10-13 08:49:53,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 163 [2020-10-13 08:49:53,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-13 08:49:53,793 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:53,899 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:53,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:53,901 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:53,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:53,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:53,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:53,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:53,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:53,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:53,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:53,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:53,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:53,920 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:53,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:53,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:54,022 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:54,022 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 154 [2020-10-13 08:49:54,022 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:54,022 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-10-13 08:49:54,022 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:54,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:54,022 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:54,023 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 148 [2020-10-13 08:49:54,023 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:54,160 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:54,161 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [170708861] [2020-10-13 08:49:54,161 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:54,161 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:54,161 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [281683886] [2020-10-13 08:49:54,162 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:54,162 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:54,162 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:54,163 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:54,163 INFO L87 Difference]: Start difference. First operand 374 states and 436 transitions. Second operand 5 states. [2020-10-13 08:49:54,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:54,943 INFO L93 Difference]: Finished difference Result 778 states and 911 transitions. [2020-10-13 08:49:54,944 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:54,944 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 219 [2020-10-13 08:49:54,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:54,946 INFO L225 Difference]: With dead ends: 778 [2020-10-13 08:49:54,947 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:54,948 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:54,948 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:54,955 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:54,956 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:54,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 434 transitions. [2020-10-13 08:49:54,957 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 434 transitions. Word has length 219 [2020-10-13 08:49:54,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:54,958 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 434 transitions. [2020-10-13 08:49:54,958 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:54,958 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 434 transitions. [2020-10-13 08:49:54,959 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 232 [2020-10-13 08:49:54,959 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:54,959 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:54,960 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2020-10-13 08:49:54,960 INFO L427 AbstractCegarLoop]: === Iteration 23 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:54,960 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:54,960 INFO L82 PathProgramCache]: Analyzing trace with hash -1283876443, now seen corresponding path program 1 times [2020-10-13 08:49:54,960 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:54,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [17769472] [2020-10-13 08:49:54,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:54,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:55,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:55,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:55,606 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,342 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:57,342 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-13 08:49:57,342 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:57,343 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2345 [2020-10-13 08:49:57,343 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:57,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:57,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 175 [2020-10-13 08:49:57,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 08:49:57,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 26 [2020-10-13 08:49:57,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:57,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:57,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,448 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:57,448 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:57,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:57,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:57,449 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:57,449 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:57,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:57,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:57,491 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:57,512 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:57,630 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:57,631 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 166 [2020-10-13 08:49:57,631 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:57,631 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 138 [2020-10-13 08:49:57,631 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:49:57,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:57,632 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 160 [2020-10-13 08:49:57,632 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:49:57,734 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:49:57,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [17769472] [2020-10-13 08:49:57,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:49:57,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:49:57,735 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [803041715] [2020-10-13 08:49:57,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:49:57,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:49:57,736 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:49:57,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:49:57,737 INFO L87 Difference]: Start difference. First operand 374 states and 434 transitions. Second operand 5 states. [2020-10-13 08:49:58,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:49:58,391 INFO L93 Difference]: Finished difference Result 759 states and 888 transitions. [2020-10-13 08:49:58,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:49:58,392 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 231 [2020-10-13 08:49:58,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:49:58,394 INFO L225 Difference]: With dead ends: 759 [2020-10-13 08:49:58,394 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:49:58,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:49:58,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:49:58,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:49:58,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:49:58,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 432 transitions. [2020-10-13 08:49:58,406 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 432 transitions. Word has length 231 [2020-10-13 08:49:58,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:49:58,407 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 432 transitions. [2020-10-13 08:49:58,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:49:58,407 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 432 transitions. [2020-10-13 08:49:58,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 236 [2020-10-13 08:49:58,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:49:58,409 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:49:58,409 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable22 [2020-10-13 08:49:58,409 INFO L427 AbstractCegarLoop]: === Iteration 24 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:49:58,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:49:58,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1657665245, now seen corresponding path program 1 times [2020-10-13 08:49:58,410 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:49:58,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2019524586] [2020-10-13 08:49:58,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:49:58,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:58,478 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:58,571 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:59,305 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:59,816 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:59,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 245 [2020-10-13 08:49:59,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:49:59,817 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1364 [2020-10-13 08:49:59,817 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:59,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:49:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 179 [2020-10-13 08:49:59,818 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-13 08:49:59,818 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:59,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:49:59,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:59,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:49:59,909 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:49:59,909 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:49:59,910 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:49:59,910 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:49:59,910 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:49:59,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:49:59,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:49:59,911 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:49:59,912 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:49:59,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:49:59,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:49:59,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:00,083 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:00,084 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 170 [2020-10-13 08:50:00,084 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:00,084 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 131 [2020-10-13 08:50:00,084 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:00,084 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:00,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:00,085 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-13 08:50:00,085 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:00,203 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:50:00,204 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2019524586] [2020-10-13 08:50:00,204 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:00,204 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:50:00,205 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2142687936] [2020-10-13 08:50:00,205 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:50:00,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:00,206 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:50:00,206 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:50:00,206 INFO L87 Difference]: Start difference. First operand 374 states and 432 transitions. Second operand 5 states. [2020-10-13 08:50:00,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:00,894 INFO L93 Difference]: Finished difference Result 770 states and 895 transitions. [2020-10-13 08:50:00,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:50:00,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 235 [2020-10-13 08:50:00,895 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:00,897 INFO L225 Difference]: With dead ends: 770 [2020-10-13 08:50:00,897 INFO L226 Difference]: Without dead ends: 380 [2020-10-13 08:50:00,898 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:50:00,899 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 380 states. [2020-10-13 08:50:00,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 380 to 374. [2020-10-13 08:50:00,907 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 374 states. [2020-10-13 08:50:00,907 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 374 states to 374 states and 430 transitions. [2020-10-13 08:50:00,908 INFO L78 Accepts]: Start accepts. Automaton has 374 states and 430 transitions. Word has length 235 [2020-10-13 08:50:00,908 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:00,908 INFO L479 AbstractCegarLoop]: Abstraction has 374 states and 430 transitions. [2020-10-13 08:50:00,908 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:50:00,908 INFO L276 IsEmpty]: Start isEmpty. Operand 374 states and 430 transitions. [2020-10-13 08:50:00,910 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 239 [2020-10-13 08:50:00,910 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:00,910 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:00,910 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable23 [2020-10-13 08:50:00,911 INFO L427 AbstractCegarLoop]: === Iteration 25 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:00,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:00,911 INFO L82 PathProgramCache]: Analyzing trace with hash -2023703662, now seen corresponding path program 1 times [2020-10-13 08:50:00,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:00,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1642066049] [2020-10-13 08:50:00,911 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:00,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:00,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:01,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:01,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:04,133 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:04,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-13 08:50:04,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 08:50:04,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3182 [2020-10-13 08:50:04,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 182 [2020-10-13 08:50:04,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-13 08:50:04,134 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:04,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:04,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:04,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:04,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:04,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:04,205 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:04,205 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:50:04,205 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:04,205 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:04,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:04,206 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:04,206 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:04,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:04,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:04,252 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:04,326 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:04,326 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-10-13 08:50:04,326 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:04,326 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-13 08:50:04,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:04,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:04,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:04,327 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-13 08:50:04,327 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:04,380 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:50:04,381 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1642066049] [2020-10-13 08:50:04,381 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:04,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:50:04,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [425910774] [2020-10-13 08:50:04,382 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:50:04,382 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:04,382 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:50:04,383 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:50:04,383 INFO L87 Difference]: Start difference. First operand 374 states and 430 transitions. Second operand 5 states. [2020-10-13 08:50:05,406 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:05,406 INFO L93 Difference]: Finished difference Result 932 states and 1082 transitions. [2020-10-13 08:50:05,408 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:50:05,408 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 238 [2020-10-13 08:50:05,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:05,412 INFO L225 Difference]: With dead ends: 932 [2020-10-13 08:50:05,412 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:50:05,413 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:50:05,414 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:50:05,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:50:05,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:50:05,432 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 623 transitions. [2020-10-13 08:50:05,433 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 623 transitions. Word has length 238 [2020-10-13 08:50:05,433 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:05,433 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 623 transitions. [2020-10-13 08:50:05,433 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:50:05,433 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 623 transitions. [2020-10-13 08:50:05,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-13 08:50:05,435 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:05,435 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:05,436 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable24 [2020-10-13 08:50:05,436 INFO L427 AbstractCegarLoop]: === Iteration 26 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:05,436 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:05,436 INFO L82 PathProgramCache]: Analyzing trace with hash 649719473, now seen corresponding path program 1 times [2020-10-13 08:50:05,436 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:05,437 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558738289] [2020-10-13 08:50:05,437 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:05,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:05,505 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:05,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:05,905 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:06,724 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:07,726 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:07,726 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-13 08:50:07,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:50:07,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2248 [2020-10-13 08:50:07,727 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:07,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:07,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 185 [2020-10-13 08:50:07,727 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-13 08:50:07,727 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:07,779 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:07,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:07,782 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:07,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:07,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:07,784 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:07,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 08:50:07,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:07,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:07,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:07,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:07,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:07,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:07,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:07,826 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:07,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:07,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-13 08:50:07,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:07,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-13 08:50:07,884 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:07,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:07,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:07,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-13 08:50:07,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:07,974 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:50:07,974 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558738289] [2020-10-13 08:50:07,975 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:07,975 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:50:07,975 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [79400114] [2020-10-13 08:50:07,976 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:50:07,976 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:07,976 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:50:07,976 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:50:07,976 INFO L87 Difference]: Start difference. First operand 560 states and 623 transitions. Second operand 5 states. [2020-10-13 08:50:08,705 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:08,705 INFO L93 Difference]: Finished difference Result 1142 states and 1279 transitions. [2020-10-13 08:50:08,706 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:50:08,706 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 241 [2020-10-13 08:50:08,707 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:08,710 INFO L225 Difference]: With dead ends: 1142 [2020-10-13 08:50:08,710 INFO L226 Difference]: Without dead ends: 564 [2020-10-13 08:50:08,711 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:50:08,712 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2020-10-13 08:50:08,723 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 560. [2020-10-13 08:50:08,723 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 560 states. [2020-10-13 08:50:08,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 560 states to 560 states and 621 transitions. [2020-10-13 08:50:08,725 INFO L78 Accepts]: Start accepts. Automaton has 560 states and 621 transitions. Word has length 241 [2020-10-13 08:50:08,725 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:08,725 INFO L479 AbstractCegarLoop]: Abstraction has 560 states and 621 transitions. [2020-10-13 08:50:08,725 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:50:08,725 INFO L276 IsEmpty]: Start isEmpty. Operand 560 states and 621 transitions. [2020-10-13 08:50:08,727 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 245 [2020-10-13 08:50:08,727 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 08:50:08,727 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 08:50:08,728 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable25 [2020-10-13 08:50:08,728 INFO L427 AbstractCegarLoop]: === Iteration 27 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 08:50:08,728 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 08:50:08,728 INFO L82 PathProgramCache]: Analyzing trace with hash 1069425446, now seen corresponding path program 1 times [2020-10-13 08:50:08,728 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 08:50:08,729 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [848522911] [2020-10-13 08:50:08,729 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 08:50:08,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:08,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:08,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:09,016 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:09,883 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:10,885 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:10,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 254 [2020-10-13 08:50:10,885 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 08:50:10,885 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2115 [2020-10-13 08:50:10,885 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:10,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 08:50:10,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 188 [2020-10-13 08:50:10,886 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 32 [2020-10-13 08:50:10,886 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:10,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 08:50:10,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:10,997 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:11,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:11,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 08:50:11,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:11,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 08:50:11,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 08:50:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:11,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 08:50:11,002 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 08:50:11,015 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 08:50:11,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 08:50:11,065 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 08:50:11,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 08:50:11,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 179 [2020-10-13 08:50:11,144 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 08:50:11,144 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-10-13 08:50:11,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 08:50:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 08:50:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 08:50:11,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-13 08:50:11,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 08:50:11,264 INFO L134 CoverageAnalysis]: Checked inductivity of 59 backedges. 58 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 08:50:11,265 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [848522911] [2020-10-13 08:50:11,265 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 08:50:11,265 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 08:50:11,265 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1259911138] [2020-10-13 08:50:11,265 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 08:50:11,266 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 08:50:11,266 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 08:50:11,266 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 08:50:11,266 INFO L87 Difference]: Start difference. First operand 560 states and 621 transitions. Second operand 5 states. [2020-10-13 08:50:12,030 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 08:50:12,030 INFO L93 Difference]: Finished difference Result 961 states and 1062 transitions. [2020-10-13 08:50:12,031 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 08:50:12,031 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 244 [2020-10-13 08:50:12,032 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 08:50:12,032 INFO L225 Difference]: With dead ends: 961 [2020-10-13 08:50:12,033 INFO L226 Difference]: Without dead ends: 0 [2020-10-13 08:50:12,035 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-13 08:50:12,035 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-10-13 08:50:12,035 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-10-13 08:50:12,035 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-10-13 08:50:12,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-10-13 08:50:12,036 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 244 [2020-10-13 08:50:12,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 08:50:12,036 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-10-13 08:50:12,036 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 08:50:12,036 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-10-13 08:50:12,036 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-10-13 08:50:12,036 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable26 [2020-10-13 08:50:12,038 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-10-13 08:50:12,655 WARN L193 SmtUtils]: Spent 404.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 106 [2020-10-13 08:50:13,025 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 106 [2020-10-13 08:50:14,849 WARN L193 SmtUtils]: Spent 1.78 s on a formula simplification. DAG size of input: 288 DAG size of output: 154 [2020-10-13 08:50:15,351 WARN L193 SmtUtils]: Spent 474.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2020-10-13 08:50:15,839 WARN L193 SmtUtils]: Spent 486.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 83 [2020-10-13 08:50:15,845 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:50:15,845 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a24~0 |old(~a24~0)|) (= ~inputC~0 |old(~inputC~0)|) (= ~a21~0 |old(~a21~0)|) (= ~inputF~0 |old(~inputF~0)|) (= ~inputA~0 |old(~inputA~0)|) (= ~inputE~0 |old(~inputE~0)|) (= ~inputD~0 |old(~inputD~0)|) (= ~a12~0 |old(~a12~0)|) (= ~inputB~0 |old(~inputB~0)|) (= ~a15~0 |old(~a15~0)|)) [2020-10-13 08:50:15,845 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:50:15,846 INFO L268 CegarLoopResult]: For program point L432(lines 432 870) no Hoare annotation was computed. [2020-10-13 08:50:15,846 INFO L268 CegarLoopResult]: For program point L366(lines 366 870) no Hoare annotation was computed. [2020-10-13 08:50:15,846 INFO L268 CegarLoopResult]: For program point L168-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,846 INFO L268 CegarLoopResult]: For program point L102-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,847 INFO L268 CegarLoopResult]: For program point L36-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,847 INFO L268 CegarLoopResult]: For program point L235(lines 235 870) no Hoare annotation was computed. [2020-10-13 08:50:15,847 INFO L268 CegarLoopResult]: For program point L169(line 169) no Hoare annotation was computed. [2020-10-13 08:50:15,847 INFO L268 CegarLoopResult]: For program point L103(line 103) no Hoare annotation was computed. [2020-10-13 08:50:15,847 INFO L268 CegarLoopResult]: For program point L37(line 37) no Hoare annotation was computed. [2020-10-13 08:50:15,847 INFO L268 CegarLoopResult]: For program point L764(lines 764 870) no Hoare annotation was computed. [2020-10-13 08:50:15,847 INFO L268 CegarLoopResult]: For program point L632(lines 632 870) no Hoare annotation was computed. [2020-10-13 08:50:15,847 INFO L268 CegarLoopResult]: For program point L500(lines 500 870) no Hoare annotation was computed. [2020-10-13 08:50:15,847 INFO L268 CegarLoopResult]: For program point L831(lines 831 870) no Hoare annotation was computed. [2020-10-13 08:50:15,848 INFO L268 CegarLoopResult]: For program point L171-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,848 INFO L268 CegarLoopResult]: For program point L105-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,848 INFO L268 CegarLoopResult]: For program point L39-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,848 INFO L268 CegarLoopResult]: For program point L700(lines 700 870) no Hoare annotation was computed. [2020-10-13 08:50:15,848 INFO L268 CegarLoopResult]: For program point L568(lines 568 870) no Hoare annotation was computed. [2020-10-13 08:50:15,848 INFO L268 CegarLoopResult]: For program point L172(line 172) no Hoare annotation was computed. [2020-10-13 08:50:15,848 INFO L268 CegarLoopResult]: For program point L106(line 106) no Hoare annotation was computed. [2020-10-13 08:50:15,848 INFO L268 CegarLoopResult]: For program point L40(line 40) no Hoare annotation was computed. [2020-10-13 08:50:15,848 INFO L268 CegarLoopResult]: For program point L305(lines 305 870) no Hoare annotation was computed. [2020-10-13 08:50:15,849 INFO L268 CegarLoopResult]: For program point L438(lines 438 870) no Hoare annotation was computed. [2020-10-13 08:50:15,849 INFO L268 CegarLoopResult]: For program point L372(lines 372 870) no Hoare annotation was computed. [2020-10-13 08:50:15,849 INFO L268 CegarLoopResult]: For program point L174-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,849 INFO L268 CegarLoopResult]: For program point L108-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,849 INFO L268 CegarLoopResult]: For program point L42-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,849 INFO L268 CegarLoopResult]: For program point L241(lines 241 870) no Hoare annotation was computed. [2020-10-13 08:50:15,849 INFO L268 CegarLoopResult]: For program point L175(line 175) no Hoare annotation was computed. [2020-10-13 08:50:15,849 INFO L268 CegarLoopResult]: For program point L109(line 109) no Hoare annotation was computed. [2020-10-13 08:50:15,849 INFO L268 CegarLoopResult]: For program point L43(line 43) no Hoare annotation was computed. [2020-10-13 08:50:15,849 INFO L268 CegarLoopResult]: For program point L638(lines 638 870) no Hoare annotation was computed. [2020-10-13 08:50:15,850 INFO L268 CegarLoopResult]: For program point L506(lines 506 870) no Hoare annotation was computed. [2020-10-13 08:50:15,850 INFO L268 CegarLoopResult]: For program point L837(lines 837 870) no Hoare annotation was computed. [2020-10-13 08:50:15,850 INFO L268 CegarLoopResult]: For program point L771(lines 771 870) no Hoare annotation was computed. [2020-10-13 08:50:15,850 INFO L268 CegarLoopResult]: For program point L573(lines 573 870) no Hoare annotation was computed. [2020-10-13 08:50:15,850 INFO L268 CegarLoopResult]: For program point L177-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,850 INFO L268 CegarLoopResult]: For program point L111-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,850 INFO L268 CegarLoopResult]: For program point L45-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,850 INFO L268 CegarLoopResult]: For program point L706(lines 706 870) no Hoare annotation was computed. [2020-10-13 08:50:15,850 INFO L268 CegarLoopResult]: For program point L178(line 178) no Hoare annotation was computed. [2020-10-13 08:50:15,851 INFO L268 CegarLoopResult]: For program point L112(line 112) no Hoare annotation was computed. [2020-10-13 08:50:15,851 INFO L268 CegarLoopResult]: For program point L46(line 46) no Hoare annotation was computed. [2020-10-13 08:50:15,851 INFO L268 CegarLoopResult]: For program point L311(lines 311 870) no Hoare annotation was computed. [2020-10-13 08:50:15,851 INFO L268 CegarLoopResult]: For program point L444(lines 444 870) no Hoare annotation was computed. [2020-10-13 08:50:15,851 INFO L268 CegarLoopResult]: For program point L378(lines 378 870) no Hoare annotation was computed. [2020-10-13 08:50:15,851 INFO L268 CegarLoopResult]: For program point L180-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,851 INFO L268 CegarLoopResult]: For program point L114-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,851 INFO L268 CegarLoopResult]: For program point L48-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,852 INFO L268 CegarLoopResult]: For program point L247(lines 247 870) no Hoare annotation was computed. [2020-10-13 08:50:15,852 INFO L268 CegarLoopResult]: For program point L181(line 181) no Hoare annotation was computed. [2020-10-13 08:50:15,852 INFO L268 CegarLoopResult]: For program point L115(line 115) no Hoare annotation was computed. [2020-10-13 08:50:15,852 INFO L268 CegarLoopResult]: For program point L49(line 49) no Hoare annotation was computed. [2020-10-13 08:50:15,852 INFO L268 CegarLoopResult]: For program point L842(lines 842 870) no Hoare annotation was computed. [2020-10-13 08:50:15,852 INFO L268 CegarLoopResult]: For program point L644(lines 644 870) no Hoare annotation was computed. [2020-10-13 08:50:15,852 INFO L268 CegarLoopResult]: For program point L512(lines 512 870) no Hoare annotation was computed. [2020-10-13 08:50:15,852 INFO L268 CegarLoopResult]: For program point L777(lines 777 870) no Hoare annotation was computed. [2020-10-13 08:50:15,852 INFO L268 CegarLoopResult]: For program point L579(lines 579 870) no Hoare annotation was computed. [2020-10-13 08:50:15,853 INFO L268 CegarLoopResult]: For program point L183-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,853 INFO L268 CegarLoopResult]: For program point L117-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,853 INFO L268 CegarLoopResult]: For program point L51-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,853 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,853 INFO L268 CegarLoopResult]: For program point L712(lines 712 870) no Hoare annotation was computed. [2020-10-13 08:50:15,853 INFO L268 CegarLoopResult]: For program point L184(line 184) no Hoare annotation was computed. [2020-10-13 08:50:15,853 INFO L268 CegarLoopResult]: For program point L118(line 118) no Hoare annotation was computed. [2020-10-13 08:50:15,853 INFO L268 CegarLoopResult]: For program point L52(line 52) no Hoare annotation was computed. [2020-10-13 08:50:15,853 INFO L268 CegarLoopResult]: For program point L449(lines 449 870) no Hoare annotation was computed. [2020-10-13 08:50:15,853 INFO L268 CegarLoopResult]: For program point L317(lines 317 870) no Hoare annotation was computed. [2020-10-13 08:50:15,854 INFO L268 CegarLoopResult]: For program point L384(lines 384 870) no Hoare annotation was computed. [2020-10-13 08:50:15,854 INFO L268 CegarLoopResult]: For program point L252(lines 252 870) no Hoare annotation was computed. [2020-10-13 08:50:15,854 INFO L268 CegarLoopResult]: For program point L186-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,854 INFO L268 CegarLoopResult]: For program point L120-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,854 INFO L268 CegarLoopResult]: For program point L54-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,854 INFO L268 CegarLoopResult]: For program point L187(line 187) no Hoare annotation was computed. [2020-10-13 08:50:15,854 INFO L268 CegarLoopResult]: For program point L121(line 121) no Hoare annotation was computed. [2020-10-13 08:50:15,854 INFO L268 CegarLoopResult]: For program point L55(line 55) no Hoare annotation was computed. [2020-10-13 08:50:15,854 INFO L268 CegarLoopResult]: For program point L848(lines 848 870) no Hoare annotation was computed. [2020-10-13 08:50:15,855 INFO L268 CegarLoopResult]: For program point L650(lines 650 870) no Hoare annotation was computed. [2020-10-13 08:50:15,855 INFO L268 CegarLoopResult]: For program point L518(lines 518 870) no Hoare annotation was computed. [2020-10-13 08:50:15,855 INFO L268 CegarLoopResult]: For program point L783(lines 783 870) no Hoare annotation was computed. [2020-10-13 08:50:15,855 INFO L268 CegarLoopResult]: For program point L585(lines 585 870) no Hoare annotation was computed. [2020-10-13 08:50:15,855 INFO L268 CegarLoopResult]: For program point L189-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,855 INFO L268 CegarLoopResult]: For program point L123-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,855 INFO L268 CegarLoopResult]: For program point L57-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,855 INFO L268 CegarLoopResult]: For program point L718(lines 718 870) no Hoare annotation was computed. [2020-10-13 08:50:15,855 INFO L268 CegarLoopResult]: For program point L454(lines 454 870) no Hoare annotation was computed. [2020-10-13 08:50:15,856 INFO L268 CegarLoopResult]: For program point L190(line 190) no Hoare annotation was computed. [2020-10-13 08:50:15,856 INFO L268 CegarLoopResult]: For program point L124(line 124) no Hoare annotation was computed. [2020-10-13 08:50:15,856 INFO L268 CegarLoopResult]: For program point L58(line 58) no Hoare annotation was computed. [2020-10-13 08:50:15,856 INFO L268 CegarLoopResult]: For program point L323(lines 323 870) no Hoare annotation was computed. [2020-10-13 08:50:15,857 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 20 872) the Hoare annotation is: (let ((.cse7 (= ~a24~0 |old(~a24~0)|)) (.cse26 (= ~a21~0 |old(~a21~0)|)) (.cse11 (= ~a15~0 |old(~a15~0)|)) (.cse14 (= 7 ~a15~0)) (.cse13 (= ~a24~0 1)) (.cse31 (= ~a21~0 9)) (.cse9 (= ~a12~0 |old(~a12~0)|))) (let ((.cse4 (not (<= 6 |old(~a21~0)|))) (.cse5 (not (<= |old(~a21~0)| 6))) (.cse8 (<= 6 ~a21~0)) (.cse10 (<= ~a21~0 6)) (.cse23 (not (<= 12 |old(~a12~0)|))) (.cse25 (not (<= |old(~a12~0)| 80))) (.cse3 (not (<= 81 |old(~a12~0)|))) (.cse18 (not (<= |old(~a15~0)| 6))) (.cse19 (not (<= 6 |old(~a15~0)|))) (.cse20 (<= 6 ~a15~0)) (.cse21 (<= ~a15~0 6)) (.cse22 (and .cse14 .cse13 .cse31 .cse9)) (.cse16 (and .cse14 (= ~a21~0 6) .cse13 .cse9)) (.cse27 (not (<= |old(~a12~0)| 10))) (.cse28 (not (<= 0 (+ |old(~a12~0)| 41)))) (.cse17 (not (= 6 |old(~a21~0)|))) (.cse15 (not (= 7 |old(~a15~0)|))) (.cse0 (and .cse7 .cse26 .cse9 .cse11)) (.cse29 (not (= 6 |old(~a15~0)|))) (.cse12 (not (= |old(~a24~0)| 1))) (.cse24 (not (= 9 |old(~a21~0)|))) (.cse30 (and .cse13 .cse31 .cse9 .cse11)) (.cse1 (not (<= 1 |old(~a24~0)|))) (.cse2 (not (<= |old(~a24~0)| 1))) (.cse6 (not (<= 7 |old(~a15~0)|)))) (and (or .cse0 (not (<= 8 |old(~a15~0)|))) (or .cse1 .cse2 .cse3 .cse4 .cse5 .cse6 (and .cse7 .cse8 .cse9 .cse10 .cse11)) (or (not (<= |old(~a12~0)| 46)) .cse12 (not (<= 13 |old(~a12~0)|)) (and .cse13 .cse9 (= ~a21~0 ~a15~0) .cse11) (not (= |old(~a15~0)| |old(~a21~0)|))) (or (not (= 7 |old(~a21~0)|)) .cse12 (and .cse14 .cse13 .cse9 (= 7 ~a21~0)) .cse15) (or .cse16 .cse12 .cse17 .cse15 (not (<= (+ |old(~a12~0)| 2797) 0))) (or .cse1 .cse2 .cse18 .cse19 .cse4 (not (<= 12849 |old(~a12~0)|)) .cse5 (and .cse20 .cse7 .cse8 .cse9 .cse10 .cse21)) (or (not (<= 8 |old(~a21~0)|)) .cse1 .cse2 .cse0 (not (<= |old(~a21~0)| 8)) .cse6) (or .cse12 .cse22 .cse23 .cse24 .cse25 .cse15) (or (not (= 10 |old(~a21~0)|)) .cse12 (and .cse26 .cse13 .cse9 .cse11) .cse27 .cse28) (or .cse29 .cse12 .cse24 (not (<= |old(~a12~0)| 11)) (not (<= 0 (+ |old(~a12~0)| 42))) .cse30) (or .cse12 (not (= 8 |old(~a21~0)|)) .cse23 .cse25 (and .cse13 (= ~a21~0 8) .cse9 .cse11)) (or .cse1 .cse2 .cse3 .cse18 (not (<= |old(~a21~0)| 9)) .cse19 (not (<= 9 |old(~a21~0)|)) (and .cse20 .cse7 .cse26 .cse9 .cse21)) (or (not (<= 528306 |old(~a12~0)|)) .cse12 .cse24 .cse22 .cse15) (or .cse16 .cse12 .cse27 .cse28 .cse17 .cse15) (or .cse0 (not (<= |old(~a15~0)| 5))) (or .cse29 .cse12 (not (<= (+ |old(~a12~0)| 45) 0)) .cse24 .cse30) (or .cse1 .cse2 (not (<= 10 |old(~a21~0)|)) (not (<= |old(~a21~0)| 10)) .cse6 (and .cse7 (<= 10 ~a21~0) .cse9 (<= ~a21~0 10) .cse11))))) [2020-10-13 08:50:15,857 INFO L268 CegarLoopResult]: For program point L390(lines 390 870) no Hoare annotation was computed. [2020-10-13 08:50:15,857 INFO L268 CegarLoopResult]: For program point L258(lines 258 870) no Hoare annotation was computed. [2020-10-13 08:50:15,857 INFO L268 CegarLoopResult]: For program point L192-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,857 INFO L268 CegarLoopResult]: For program point L126-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,857 INFO L268 CegarLoopResult]: For program point L60-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,857 INFO L268 CegarLoopResult]: For program point L193(line 193) no Hoare annotation was computed. [2020-10-13 08:50:15,857 INFO L268 CegarLoopResult]: For program point L127(line 127) no Hoare annotation was computed. [2020-10-13 08:50:15,857 INFO L268 CegarLoopResult]: For program point L61(line 61) no Hoare annotation was computed. [2020-10-13 08:50:15,857 INFO L268 CegarLoopResult]: For program point L854(lines 854 870) no Hoare annotation was computed. [2020-10-13 08:50:15,858 INFO L268 CegarLoopResult]: For program point L656(lines 656 870) no Hoare annotation was computed. [2020-10-13 08:50:15,858 INFO L268 CegarLoopResult]: For program point L524(lines 524 870) no Hoare annotation was computed. [2020-10-13 08:50:15,858 INFO L268 CegarLoopResult]: For program point L789(lines 789 870) no Hoare annotation was computed. [2020-10-13 08:50:15,858 INFO L268 CegarLoopResult]: For program point L591(lines 591 870) no Hoare annotation was computed. [2020-10-13 08:50:15,858 INFO L268 CegarLoopResult]: For program point L195-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,858 INFO L268 CegarLoopResult]: For program point L129-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,858 INFO L268 CegarLoopResult]: For program point L63-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,858 INFO L268 CegarLoopResult]: For program point L724(lines 724 870) no Hoare annotation was computed. [2020-10-13 08:50:15,858 INFO L268 CegarLoopResult]: For program point L460(lines 460 870) no Hoare annotation was computed. [2020-10-13 08:50:15,858 INFO L268 CegarLoopResult]: For program point L196(line 196) no Hoare annotation was computed. [2020-10-13 08:50:15,859 INFO L268 CegarLoopResult]: For program point L130(line 130) no Hoare annotation was computed. [2020-10-13 08:50:15,859 INFO L268 CegarLoopResult]: For program point L64(line 64) no Hoare annotation was computed. [2020-10-13 08:50:15,859 INFO L268 CegarLoopResult]: For program point L329(lines 329 870) no Hoare annotation was computed. [2020-10-13 08:50:15,859 INFO L268 CegarLoopResult]: For program point L396(lines 396 870) no Hoare annotation was computed. [2020-10-13 08:50:15,859 INFO L268 CegarLoopResult]: For program point L264(lines 264 870) no Hoare annotation was computed. [2020-10-13 08:50:15,859 INFO L268 CegarLoopResult]: For program point L198-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,859 INFO L268 CegarLoopResult]: For program point L132-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,859 INFO L268 CegarLoopResult]: For program point L66-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,859 INFO L268 CegarLoopResult]: For program point L859(lines 859 870) no Hoare annotation was computed. [2020-10-13 08:50:15,859 INFO L268 CegarLoopResult]: For program point L199(line 199) no Hoare annotation was computed. [2020-10-13 08:50:15,860 INFO L268 CegarLoopResult]: For program point L133(line 133) no Hoare annotation was computed. [2020-10-13 08:50:15,860 INFO L268 CegarLoopResult]: For program point L67(line 67) no Hoare annotation was computed. [2020-10-13 08:50:15,860 INFO L268 CegarLoopResult]: For program point L662(lines 662 870) no Hoare annotation was computed. [2020-10-13 08:50:15,860 INFO L268 CegarLoopResult]: For program point L530(lines 530 870) no Hoare annotation was computed. [2020-10-13 08:50:15,860 INFO L268 CegarLoopResult]: For program point L795(lines 795 870) no Hoare annotation was computed. [2020-10-13 08:50:15,860 INFO L268 CegarLoopResult]: For program point L597(lines 597 870) no Hoare annotation was computed. [2020-10-13 08:50:15,860 INFO L268 CegarLoopResult]: For program point L201-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,860 INFO L268 CegarLoopResult]: For program point L135-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,860 INFO L268 CegarLoopResult]: For program point L69-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,860 INFO L268 CegarLoopResult]: For program point L730(lines 730 870) no Hoare annotation was computed. [2020-10-13 08:50:15,861 INFO L268 CegarLoopResult]: For program point L202(line 202) no Hoare annotation was computed. [2020-10-13 08:50:15,861 INFO L268 CegarLoopResult]: For program point L136(line 136) no Hoare annotation was computed. [2020-10-13 08:50:15,861 INFO L268 CegarLoopResult]: For program point L70(line 70) no Hoare annotation was computed. [2020-10-13 08:50:15,861 INFO L268 CegarLoopResult]: For program point L467(lines 467 870) no Hoare annotation was computed. [2020-10-13 08:50:15,861 INFO L268 CegarLoopResult]: For program point L335(lines 335 870) no Hoare annotation was computed. [2020-10-13 08:50:15,861 INFO L268 CegarLoopResult]: For program point L269(lines 269 870) no Hoare annotation was computed. [2020-10-13 08:50:15,861 INFO L268 CegarLoopResult]: For program point L402(lines 402 870) no Hoare annotation was computed. [2020-10-13 08:50:15,861 INFO L268 CegarLoopResult]: For program point L138-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,861 INFO L268 CegarLoopResult]: For program point L72-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,861 INFO L268 CegarLoopResult]: For program point L865(lines 865 870) no Hoare annotation was computed. [2020-10-13 08:50:15,861 INFO L268 CegarLoopResult]: For program point L139(line 139) no Hoare annotation was computed. [2020-10-13 08:50:15,862 INFO L268 CegarLoopResult]: For program point L73(line 73) no Hoare annotation was computed. [2020-10-13 08:50:15,862 INFO L268 CegarLoopResult]: For program point L668(lines 668 870) no Hoare annotation was computed. [2020-10-13 08:50:15,862 INFO L268 CegarLoopResult]: For program point L536(lines 536 870) no Hoare annotation was computed. [2020-10-13 08:50:15,862 INFO L268 CegarLoopResult]: For program point L801(lines 801 870) no Hoare annotation was computed. [2020-10-13 08:50:15,862 INFO L268 CegarLoopResult]: For program point L735(lines 735 870) no Hoare annotation was computed. [2020-10-13 08:50:15,862 INFO L268 CegarLoopResult]: For program point L603(lines 603 870) no Hoare annotation was computed. [2020-10-13 08:50:15,862 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 184) no Hoare annotation was computed. [2020-10-13 08:50:15,862 INFO L268 CegarLoopResult]: For program point L141-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,862 INFO L268 CegarLoopResult]: For program point L75-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,863 INFO L268 CegarLoopResult]: For program point L472(lines 472 870) no Hoare annotation was computed. [2020-10-13 08:50:15,863 INFO L268 CegarLoopResult]: For program point L142(line 142) no Hoare annotation was computed. [2020-10-13 08:50:15,863 INFO L268 CegarLoopResult]: For program point L76(line 76) no Hoare annotation was computed. [2020-10-13 08:50:15,863 INFO L268 CegarLoopResult]: For program point L341(lines 341 870) no Hoare annotation was computed. [2020-10-13 08:50:15,863 INFO L268 CegarLoopResult]: For program point L275(lines 275 870) no Hoare annotation was computed. [2020-10-13 08:50:15,863 INFO L268 CegarLoopResult]: For program point L408(lines 408 870) no Hoare annotation was computed. [2020-10-13 08:50:15,863 INFO L268 CegarLoopResult]: For program point L144-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,863 INFO L268 CegarLoopResult]: For program point L78-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,863 INFO L268 CegarLoopResult]: For program point L541(lines 541 870) no Hoare annotation was computed. [2020-10-13 08:50:15,863 INFO L268 CegarLoopResult]: For program point L211(lines 211 870) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L145(line 145) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L79(line 79) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L674(lines 674 870) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L807(lines 807 870) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L741(lines 741 870) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L609(lines 609 870) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L147-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L81-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L478(lines 478 870) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L280(lines 280 870) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L148(line 148) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L82(line 82) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L677(lines 677 870) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L347(lines 347 870) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L414(lines 414 870) no Hoare annotation was computed. [2020-10-13 08:50:15,864 INFO L268 CegarLoopResult]: For program point L150-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L84-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L547(lines 547 870) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L217(lines 217 870) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L151(line 151) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L85(line 85) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L747(lines 747 870) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L615(lines 615 870) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L153-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L87-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L21(lines 21 23) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L21-2(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L814(lines 814 870) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L484(lines 484 870) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L286(lines 286 870) no Hoare annotation was computed. [2020-10-13 08:50:15,865 INFO L268 CegarLoopResult]: For program point L154(line 154) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L88(line 88) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L22(line 22) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L683(lines 683 870) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L353(lines 353 870) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L552(lines 552 870) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L420(lines 420 870) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L156-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L90-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L24-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L223(lines 223 870) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L157(line 157) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L91(line 91) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L25(line 25) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L752(lines 752 870) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L819(lines 819 870) no Hoare annotation was computed. [2020-10-13 08:50:15,866 INFO L268 CegarLoopResult]: For program point L621(lines 621 870) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L555(lines 555 870) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L159-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L93-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L27-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L688(lines 688 870) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L490(lines 490 870) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L160(line 160) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L94(line 94) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L28(line 28) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L359(lines 359 870) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L293(lines 293 870) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L426(lines 426 870) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L162-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L96-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L30-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L229(lines 229 870) no Hoare annotation was computed. [2020-10-13 08:50:15,867 INFO L268 CegarLoopResult]: For program point L163(line 163) no Hoare annotation was computed. [2020-10-13 08:50:15,868 INFO L268 CegarLoopResult]: For program point L97(line 97) no Hoare annotation was computed. [2020-10-13 08:50:15,868 INFO L268 CegarLoopResult]: For program point L31(line 31) no Hoare annotation was computed. [2020-10-13 08:50:15,868 INFO L268 CegarLoopResult]: For program point L758(lines 758 870) no Hoare annotation was computed. [2020-10-13 08:50:15,868 INFO L268 CegarLoopResult]: For program point L626(lines 626 870) no Hoare annotation was computed. [2020-10-13 08:50:15,868 INFO L268 CegarLoopResult]: For program point L825(lines 825 870) no Hoare annotation was computed. [2020-10-13 08:50:15,868 INFO L268 CegarLoopResult]: For program point L561(lines 561 870) no Hoare annotation was computed. [2020-10-13 08:50:15,868 INFO L268 CegarLoopResult]: For program point L495(lines 495 870) no Hoare annotation was computed. [2020-10-13 08:50:15,868 INFO L268 CegarLoopResult]: For program point L165-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,868 INFO L268 CegarLoopResult]: For program point L99-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,868 INFO L268 CegarLoopResult]: For program point L33-1(lines 20 872) no Hoare annotation was computed. [2020-10-13 08:50:15,868 INFO L268 CegarLoopResult]: For program point L694(lines 694 870) no Hoare annotation was computed. [2020-10-13 08:50:15,869 INFO L268 CegarLoopResult]: For program point L166(line 166) no Hoare annotation was computed. [2020-10-13 08:50:15,869 INFO L268 CegarLoopResult]: For program point L100(line 100) no Hoare annotation was computed. [2020-10-13 08:50:15,869 INFO L268 CegarLoopResult]: For program point L34(line 34) no Hoare annotation was computed. [2020-10-13 08:50:15,869 INFO L268 CegarLoopResult]: For program point L299(lines 299 870) no Hoare annotation was computed. [2020-10-13 08:50:15,869 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-10-13 08:50:15,869 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (<= 8 ~a15~0) [2020-10-13 08:50:15,869 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-10-13 08:50:15,869 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-10-13 08:50:15,869 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 874 890) the Hoare annotation is: (or (and (= ~a24~0 |old(~a24~0)|) (= ~a21~0 |old(~a21~0)|) (= ~a12~0 |old(~a12~0)|) (= ~a15~0 |old(~a15~0)|)) (not (<= 8 |old(~a15~0)|))) [2020-10-13 08:50:15,869 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:50:15,870 INFO L264 CegarLoopResult]: At program point L888(line 888) the Hoare annotation is: (let ((.cse7 (<= 6 ~a21~0)) (.cse8 (<= ~a21~0 6)) (.cse9 (= ~a21~0 9)) (.cse10 (= ~a15~0 6)) (.cse3 (= ~a21~0 6)) (.cse13 (<= 7 ~a15~0)) (.cse11 (<= 12 ~a12~0)) (.cse12 (<= ~a12~0 80)) (.cse5 (<= ~a24~0 1)) (.cse14 (<= 81 ~a12~0)) (.cse6 (<= 1 ~a24~0)) (.cse0 (= 7 ~a15~0)) (.cse1 (<= 0 (+ ~a12~0 41))) (.cse2 (<= ~a12~0 10)) (.cse4 (= ~a24~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (<= 12849 ~a12~0) .cse6 .cse7 .cse8) (and (<= (+ ~a12~0 45) 0) .cse4 .cse9 .cse10) (and (<= ~a12~0 46) (<= 13 ~a12~0) .cse4 (= ~a21~0 ~a15~0)) (not (<= 8 |old(~a15~0)|)) (and .cse0 .cse11 .cse4 .cse12 .cse9) (and (<= 528306 ~a12~0) .cse4 .cse9) (and .cse5 .cse13 (<= 8 ~a21~0) .cse6 (<= ~a21~0 8)) (and .cse5 .cse14 .cse13 .cse6 .cse7 .cse8) (and (<= 0 (+ ~a12~0 42)) (<= ~a12~0 11) .cse4 .cse9 .cse10) (<= 8 ~a15~0) (<= ~a15~0 5) (and .cse0 .cse3 .cse4 (<= (+ ~a12~0 2797) 0)) (and .cse5 .cse13 .cse6 (<= 10 ~a21~0) (<= ~a21~0 10)) (and .cse11 .cse4 .cse12 (= ~a21~0 8)) (and (<= 9 ~a21~0) .cse5 .cse14 .cse6 (<= ~a21~0 9) (<= ~a15~0 6)) (and .cse0 .cse4 (= 7 ~a21~0)) (and .cse1 .cse2 (= ~a21~0 10) .cse4))) [2020-10-13 08:50:15,870 INFO L268 CegarLoopResult]: For program point L888-1(line 888) no Hoare annotation was computed. [2020-10-13 08:50:15,870 INFO L268 CegarLoopResult]: For program point L885(line 885) no Hoare annotation was computed. [2020-10-13 08:50:15,870 INFO L264 CegarLoopResult]: At program point L880-2(lines 880 889) the Hoare annotation is: (let ((.cse7 (<= 6 ~a21~0)) (.cse8 (<= ~a21~0 6)) (.cse9 (= ~a21~0 9)) (.cse10 (= ~a15~0 6)) (.cse3 (= ~a21~0 6)) (.cse13 (<= 7 ~a15~0)) (.cse11 (<= 12 ~a12~0)) (.cse12 (<= ~a12~0 80)) (.cse5 (<= ~a24~0 1)) (.cse14 (<= 81 ~a12~0)) (.cse6 (<= 1 ~a24~0)) (.cse0 (= 7 ~a15~0)) (.cse1 (<= 0 (+ ~a12~0 41))) (.cse2 (<= ~a12~0 10)) (.cse4 (= ~a24~0 1))) (or (and .cse0 .cse1 .cse2 .cse3 .cse4) (and .cse5 (<= 12849 ~a12~0) .cse6 .cse7 .cse8) (and (<= (+ ~a12~0 45) 0) .cse4 .cse9 .cse10) (and (<= ~a12~0 46) (<= 13 ~a12~0) .cse4 (= ~a21~0 ~a15~0)) (not (<= 8 |old(~a15~0)|)) (and .cse0 .cse11 .cse4 .cse12 .cse9) (and (<= 528306 ~a12~0) .cse4 .cse9) (and .cse5 .cse13 (<= 8 ~a21~0) .cse6 (<= ~a21~0 8)) (and .cse5 .cse14 .cse13 .cse6 .cse7 .cse8) (and (<= 0 (+ ~a12~0 42)) (<= ~a12~0 11) .cse4 .cse9 .cse10) (<= 8 ~a15~0) (<= ~a15~0 5) (and .cse0 .cse3 .cse4 (<= (+ ~a12~0 2797) 0)) (and .cse5 .cse13 .cse6 (<= 10 ~a21~0) (<= ~a21~0 10)) (and .cse11 .cse4 .cse12 (= ~a21~0 8)) (and (<= 9 ~a21~0) .cse5 .cse14 .cse6 (<= ~a21~0 9) (<= ~a15~0 6)) (and .cse0 .cse4 (= 7 ~a21~0)) (and .cse1 .cse2 (= ~a21~0 10) .cse4))) [2020-10-13 08:50:15,871 INFO L268 CegarLoopResult]: For program point L880-3(lines 874 890) no Hoare annotation was computed. [2020-10-13 08:50:15,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 08:50:15 BoogieIcfgContainer [2020-10-13 08:50:15,901 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 08:50:15,906 INFO L168 Benchmark]: Toolchain (without parser) took 72781.70 ms. Allocated memory was 141.0 MB in the beginning and 1.0 GB in the end (delta: 883.9 MB). Free memory was 102.0 MB in the beginning and 301.1 MB in the end (delta: -199.1 MB). Peak memory consumption was 684.9 MB. Max. memory is 7.1 GB. [2020-10-13 08:50:15,907 INFO L168 Benchmark]: CDTParser took 0.17 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-10-13 08:50:15,907 INFO L168 Benchmark]: CACSL2BoogieTranslator took 967.16 ms. Allocated memory was 141.0 MB in the beginning and 206.0 MB in the end (delta: 65.0 MB). Free memory was 101.8 MB in the beginning and 168.3 MB in the end (delta: -66.6 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. [2020-10-13 08:50:15,908 INFO L168 Benchmark]: Boogie Preprocessor took 154.43 ms. Allocated memory is still 206.0 MB. Free memory was 168.3 MB in the beginning and 162.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2020-10-13 08:50:15,909 INFO L168 Benchmark]: RCFGBuilder took 1629.82 ms. Allocated memory was 206.0 MB in the beginning and 238.6 MB in the end (delta: 32.5 MB). Free memory was 162.8 MB in the beginning and 154.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. [2020-10-13 08:50:15,909 INFO L168 Benchmark]: TraceAbstraction took 70025.23 ms. Allocated memory was 238.6 MB in the beginning and 1.0 GB in the end (delta: 786.4 MB). Free memory was 154.2 MB in the beginning and 301.1 MB in the end (delta: -146.8 MB). Peak memory consumption was 639.6 MB. Max. memory is 7.1 GB. [2020-10-13 08:50:15,912 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.17 ms. Allocated memory is still 141.0 MB. Free memory was 122.6 MB in the beginning and 122.4 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 967.16 ms. Allocated memory was 141.0 MB in the beginning and 206.0 MB in the end (delta: 65.0 MB). Free memory was 101.8 MB in the beginning and 168.3 MB in the end (delta: -66.6 MB). Peak memory consumption was 38.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 154.43 ms. Allocated memory is still 206.0 MB. Free memory was 168.3 MB in the beginning and 162.8 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1629.82 ms. Allocated memory was 206.0 MB in the beginning and 238.6 MB in the end (delta: 32.5 MB). Free memory was 162.8 MB in the beginning and 154.2 MB in the end (delta: 8.6 MB). Peak memory consumption was 77.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 70025.23 ms. Allocated memory was 238.6 MB in the beginning and 1.0 GB in the end (delta: 786.4 MB). Free memory was 154.2 MB in the beginning and 301.1 MB in the end (delta: -146.8 MB). Peak memory consumption was 639.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 184]: 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: 880]: Loop Invariant Derived loop invariant: ((((((((((((((((((((7 == a15 && 0 <= a12 + 41) && a12 <= 10) && a21 == 6) && a24 == 1) || ((((a24 <= 1 && 12849 <= a12) && 1 <= a24) && 6 <= a21) && a21 <= 6)) || (((a12 + 45 <= 0 && a24 == 1) && a21 == 9) && a15 == 6)) || (((a12 <= 46 && 13 <= a12) && a24 == 1) && a21 == a15)) || !(8 <= \old(a15))) || ((((7 == a15 && 12 <= a12) && a24 == 1) && a12 <= 80) && a21 == 9)) || ((528306 <= a12 && a24 == 1) && a21 == 9)) || ((((a24 <= 1 && 7 <= a15) && 8 <= a21) && 1 <= a24) && a21 <= 8)) || (((((a24 <= 1 && 81 <= a12) && 7 <= a15) && 1 <= a24) && 6 <= a21) && a21 <= 6)) || ((((0 <= a12 + 42 && a12 <= 11) && a24 == 1) && a21 == 9) && a15 == 6)) || 8 <= a15) || a15 <= 5) || (((7 == a15 && a21 == 6) && a24 == 1) && a12 + 2797 <= 0)) || ((((a24 <= 1 && 7 <= a15) && 1 <= a24) && 10 <= a21) && a21 <= 10)) || (((12 <= a12 && a24 == 1) && a12 <= 80) && a21 == 8)) || (((((9 <= a21 && a24 <= 1) && 81 <= a12) && 1 <= a24) && a21 <= 9) && a15 <= 6)) || ((7 == a15 && a24 == 1) && 7 == a21)) || (((0 <= a12 + 41 && a12 <= 10) && a21 == 10) && a24 == 1) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 254 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 66.0s, OverallIterations: 27, TraceHistogramMax: 2, AutomataDifference: 23.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 3.8s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 673 SDtfs, 6141 SDslu, 514 SDs, 0 SdLazy, 15658 SolverSat, 338 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 16.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 318 GetRequests, 160 SyntacticMatches, 27 SemanticMatches, 131 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 42 ImplicationChecksByTransitivity, 3.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=560occurred in iteration=25, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 27 MinimizatonAttempts, 152 StatesRemovedByMinimization, 26 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 90 PreInvPairs, 148 NumberOfFragments, 1093 HoareAnnotationTreeSize, 90 FomulaSimplifications, 9261023358 FormulaSimplificationTreeSizeReduction, 0.9s HoareSimplificationTime, 7 FomulaSimplificationsInter, 1678 FormulaSimplificationTreeSizeReductionInter, 2.8s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 39.2s InterpolantComputationTime, 4815 NumberOfCodeBlocks, 4815 NumberOfCodeBlocksAsserted, 27 NumberOfCheckSat, 4788 ConstructedInterpolants, 0 QuantifiedInterpolants, 3132761 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 27 InterpolantComputations, 1 PerfectInterpolantSequences, 1508/1534 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...