/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/Problem01_label33.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-13 06:03:23,640 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-13 06:03:23,643 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-13 06:03:23,667 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-13 06:03:23,667 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-13 06:03:23,668 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-13 06:03:23,670 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-13 06:03:23,672 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-13 06:03:23,673 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-13 06:03:23,674 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-13 06:03:23,675 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-13 06:03:23,676 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-13 06:03:23,677 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-13 06:03:23,678 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-13 06:03:23,679 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-13 06:03:23,680 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-13 06:03:23,681 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-13 06:03:23,682 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-13 06:03:23,684 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-13 06:03:23,685 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-13 06:03:23,687 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-13 06:03:23,688 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-13 06:03:23,689 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-13 06:03:23,690 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-13 06:03:23,693 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-13 06:03:23,693 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-13 06:03:23,693 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-13 06:03:23,694 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-13 06:03:23,695 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-13 06:03:23,696 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-13 06:03:23,696 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-13 06:03:23,697 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-13 06:03:23,697 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-13 06:03:23,701 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-13 06:03:23,703 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-13 06:03:23,703 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-13 06:03:23,704 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-13 06:03:23,704 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-13 06:03:23,704 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-13 06:03:23,705 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-13 06:03:23,706 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-13 06:03:23,708 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 06:03:23,755 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-13 06:03:23,755 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-13 06:03:23,756 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-13 06:03:23,757 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-13 06:03:23,757 INFO L138 SettingsManager]: * Use SBE=true [2020-10-13 06:03:23,757 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-13 06:03:23,757 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-13 06:03:23,757 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-13 06:03:23,758 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-13 06:03:23,758 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-13 06:03:23,761 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-13 06:03:23,761 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-13 06:03:23,762 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-13 06:03:23,762 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-13 06:03:23,762 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-13 06:03:23,762 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-13 06:03:23,762 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-13 06:03:23,763 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-13 06:03:23,763 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-13 06:03:23,765 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-13 06:03:23,765 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-13 06:03:23,765 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-13 06:03:23,766 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-13 06:03:23,767 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-13 06:03:23,768 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-13 06:03:23,768 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-13 06:03:23,768 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-13 06:03:23,768 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-13 06:03:23,768 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-13 06:03:23,768 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 06:03:24,098 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-13 06:03:24,111 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-13 06:03:24,115 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-13 06:03:24,116 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-13 06:03:24,117 INFO L275 PluginConnector]: CDTParser initialized [2020-10-13 06:03:24,118 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem01_label33.c [2020-10-13 06:03:24,180 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0af03d577/2d5ede3b7d904c91abbf584498eacf1e/FLAGd701af55a [2020-10-13 06:03:24,729 INFO L306 CDTParser]: Found 1 translation units. [2020-10-13 06:03:24,732 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem01_label33.c [2020-10-13 06:03:24,746 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0af03d577/2d5ede3b7d904c91abbf584498eacf1e/FLAGd701af55a [2020-10-13 06:03:25,048 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/0af03d577/2d5ede3b7d904c91abbf584498eacf1e [2020-10-13 06:03:25,059 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-13 06:03:25,062 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-13 06:03:25,063 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-13 06:03:25,063 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-13 06:03:25,067 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-13 06:03:25,068 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:03:25" (1/1) ... [2020-10-13 06:03:25,071 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7c46e88b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:25, skipping insertion in model container [2020-10-13 06:03:25,072 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 13.10 06:03:25" (1/1) ... [2020-10-13 06:03:25,080 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-13 06:03:25,155 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-13 06:03:25,785 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:03:25,796 INFO L203 MainTranslator]: Completed pre-run [2020-10-13 06:03:25,875 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-13 06:03:25,892 INFO L208 MainTranslator]: Completed translation [2020-10-13 06:03:25,893 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:25 WrapperNode [2020-10-13 06:03:25,893 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-13 06:03:25,894 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-13 06:03:25,894 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-13 06:03:25,894 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-13 06:03:25,911 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:25" (1/1) ... [2020-10-13 06:03:25,912 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:25" (1/1) ... [2020-10-13 06:03:25,946 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:25" (1/1) ... [2020-10-13 06:03:25,946 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:25" (1/1) ... [2020-10-13 06:03:25,998 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:25" (1/1) ... [2020-10-13 06:03:26,021 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:25" (1/1) ... [2020-10-13 06:03:26,032 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:25" (1/1) ... [2020-10-13 06:03:26,042 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-13 06:03:26,044 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-13 06:03:26,044 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-13 06:03:26,044 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-13 06:03:26,045 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:25" (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 06:03:26,130 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-13 06:03:26,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-13 06:03:26,131 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-13 06:03:26,131 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-13 06:03:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-13 06:03:26,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-13 06:03:26,133 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-13 06:03:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-13 06:03:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-13 06:03:26,134 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-13 06:03:26,135 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-13 06:03:27,303 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-13 06:03:27,303 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-13 06:03:27,309 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:03:27 BoogieIcfgContainer [2020-10-13 06:03:27,310 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-13 06:03:27,311 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-13 06:03:27,311 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-13 06:03:27,314 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-13 06:03:27,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 13.10 06:03:25" (1/3) ... [2020-10-13 06:03:27,315 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc079f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:03:27, skipping insertion in model container [2020-10-13 06:03:27,315 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 13.10 06:03:25" (2/3) ... [2020-10-13 06:03:27,316 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7dc079f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 13.10 06:03:27, skipping insertion in model container [2020-10-13 06:03:27,316 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 13.10 06:03:27" (3/3) ... [2020-10-13 06:03:27,318 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem01_label33.c [2020-10-13 06:03:27,329 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-13 06:03:27,337 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-13 06:03:27,351 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-13 06:03:27,377 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-13 06:03:27,377 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-13 06:03:27,378 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-13 06:03:27,378 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-13 06:03:27,378 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-13 06:03:27,378 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-13 06:03:27,378 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-13 06:03:27,379 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-13 06:03:27,403 INFO L276 IsEmpty]: Start isEmpty. Operand 207 states. [2020-10-13 06:03:27,413 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2020-10-13 06:03:27,413 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:27,415 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:03:27,415 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:27,421 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:27,422 INFO L82 PathProgramCache]: Analyzing trace with hash 1566992543, now seen corresponding path program 1 times [2020-10-13 06:03:27,431 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:27,432 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1518462133] [2020-10-13 06:03:27,432 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:27,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:27,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:28,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:29,170 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:29,171 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 91 [2020-10-13 06:03:29,171 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:29,171 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1463 [2020-10-13 06:03:29,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-13 06:03:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-13 06:03:29,175 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 69 [2020-10-13 06:03:29,175 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-13 06:03:29,963 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification. DAG size of input: 45 DAG size of output: 31 [2020-10-13 06:03:30,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:30,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:30,297 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:30,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:30,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:30,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:30,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-13 06:03:30,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:30,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-13 06:03:30,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:30,441 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 06:03:30,443 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1518462133] [2020-10-13 06:03:30,445 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-13 06:03:30,446 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-10-13 06:03:30,447 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1535081389] [2020-10-13 06:03:30,456 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:30,457 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:30,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:30,475 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=47, Invalid=109, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:30,478 INFO L87 Difference]: Start difference. First operand 207 states. Second operand 13 states. [2020-10-13 06:03:30,901 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-10-13 06:03:31,217 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 98 DAG size of output: 87 [2020-10-13 06:03:31,529 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 99 [2020-10-13 06:03:31,825 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 107 DAG size of output: 96 [2020-10-13 06:03:32,178 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification. DAG size of input: 106 DAG size of output: 95 [2020-10-13 06:03:32,618 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:03:33,126 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 91 [2020-10-13 06:03:33,480 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification. DAG size of input: 100 DAG size of output: 89 [2020-10-13 06:03:34,389 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:34,389 INFO L93 Difference]: Finished difference Result 474 states and 793 transitions. [2020-10-13 06:03:34,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-13 06:03:34,393 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 83 [2020-10-13 06:03:34,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:34,419 INFO L225 Difference]: With dead ends: 474 [2020-10-13 06:03:34,419 INFO L226 Difference]: Without dead ends: 205 [2020-10-13 06:03:34,431 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 49 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=150, Invalid=312, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:03:34,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 205 states. [2020-10-13 06:03:34,486 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 205 to 205. [2020-10-13 06:03:34,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 205 states. [2020-10-13 06:03:34,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 205 states to 205 states and 277 transitions. [2020-10-13 06:03:34,491 INFO L78 Accepts]: Start accepts. Automaton has 205 states and 277 transitions. Word has length 83 [2020-10-13 06:03:34,492 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:34,492 INFO L479 AbstractCegarLoop]: Abstraction has 205 states and 277 transitions. [2020-10-13 06:03:34,492 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:34,492 INFO L276 IsEmpty]: Start isEmpty. Operand 205 states and 277 transitions. [2020-10-13 06:03:34,497 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 92 [2020-10-13 06:03:34,497 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:34,497 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:03:34,497 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-13 06:03:34,498 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:34,498 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:34,498 INFO L82 PathProgramCache]: Analyzing trace with hash 1263469028, now seen corresponding path program 1 times [2020-10-13 06:03:34,498 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:34,499 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1166699240] [2020-10-13 06:03:34,499 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:34,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:34,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:34,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:34,930 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:35,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:35,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-13 06:03:35,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:03:35,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1256 [2020-10-13 06:03:35,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:35,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:03:35,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:03:35,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-10-13 06:03:35,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:36,396 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification. DAG size of input: 64 DAG size of output: 45 [2020-10-13 06:03:36,871 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:36,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:36,880 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:36,884 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:36,885 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:36,886 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:36,886 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:36,886 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:36,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:36,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:36,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:36,887 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:36,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:36,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:36,920 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:36,934 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:36,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:03:36,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:36,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:03:36,935 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:36,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:36,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:36,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-10-13 06:03:36,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:37,085 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:37,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1166699240] [2020-10-13 06:03:37,086 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:37,086 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:03:37,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1598472032] [2020-10-13 06:03:37,089 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:03:37,089 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:37,089 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:03:37,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:03:37,091 INFO L87 Difference]: Start difference. First operand 205 states and 277 transitions. Second operand 13 states. [2020-10-13 06:03:37,479 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 115 [2020-10-13 06:03:37,988 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 112 [2020-10-13 06:03:38,766 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 109 [2020-10-13 06:03:39,171 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 106 [2020-10-13 06:03:39,358 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 90 [2020-10-13 06:03:39,655 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 118 DAG size of output: 103 [2020-10-13 06:03:39,898 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification. DAG size of input: 117 DAG size of output: 98 [2020-10-13 06:03:40,455 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:40,456 INFO L93 Difference]: Finished difference Result 433 states and 637 transitions. [2020-10-13 06:03:40,459 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-10-13 06:03:40,460 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 91 [2020-10-13 06:03:40,460 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:40,464 INFO L225 Difference]: With dead ends: 433 [2020-10-13 06:03:40,464 INFO L226 Difference]: Without dead ends: 294 [2020-10-13 06:03:40,466 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 91 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=164, Invalid=388, Unknown=0, NotChecked=0, Total=552 [2020-10-13 06:03:40,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-13 06:03:40,487 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 276. [2020-10-13 06:03:40,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-10-13 06:03:40,489 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 355 transitions. [2020-10-13 06:03:40,490 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 355 transitions. Word has length 91 [2020-10-13 06:03:40,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:40,490 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 355 transitions. [2020-10-13 06:03:40,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:03:40,491 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 355 transitions. [2020-10-13 06:03:40,494 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2020-10-13 06:03:40,494 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:40,494 INFO L422 BasicCegarLoop]: trace histogram [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] [2020-10-13 06:03:40,495 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-13 06:03:40,495 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:40,495 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:40,495 INFO L82 PathProgramCache]: Analyzing trace with hash -492629722, now seen corresponding path program 1 times [2020-10-13 06:03:40,496 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:40,496 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1370012881] [2020-10-13 06:03:40,496 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:40,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:40,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:40,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:41,044 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:41,045 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 104 [2020-10-13 06:03:41,045 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:03:41,045 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 517 [2020-10-13 06:03:41,045 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:41,045 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:41,046 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:41,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-13 06:03:41,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:03:41,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:41,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:41,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:41,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:41,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:41,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:41,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-13 06:03:41,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:41,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:41,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:41,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:41,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:41,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:41,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:41,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:41,202 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:41,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:03:41,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:41,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:41,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:41,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:41,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:41,230 INFO L134 CoverageAnalysis]: Checked inductivity of 8 backedges. 7 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:03:41,230 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1370012881] [2020-10-13 06:03:41,230 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:41,231 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-13 06:03:41,231 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1318945394] [2020-10-13 06:03:41,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-13 06:03:41,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:41,234 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-13 06:03:41,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-13 06:03:41,234 INFO L87 Difference]: Start difference. First operand 276 states and 355 transitions. Second operand 5 states. [2020-10-13 06:03:42,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:42,197 INFO L93 Difference]: Finished difference Result 625 states and 851 transitions. [2020-10-13 06:03:42,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-13 06:03:42,198 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 94 [2020-10-13 06:03:42,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:42,204 INFO L225 Difference]: With dead ends: 625 [2020-10-13 06:03:42,204 INFO L226 Difference]: Without dead ends: 415 [2020-10-13 06:03:42,206 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 06:03:42,206 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 415 states. [2020-10-13 06:03:42,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 415 to 415. [2020-10-13 06:03:42,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 415 states. [2020-10-13 06:03:42,244 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 415 states to 415 states and 548 transitions. [2020-10-13 06:03:42,244 INFO L78 Accepts]: Start accepts. Automaton has 415 states and 548 transitions. Word has length 94 [2020-10-13 06:03:42,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:42,245 INFO L479 AbstractCegarLoop]: Abstraction has 415 states and 548 transitions. [2020-10-13 06:03:42,245 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-13 06:03:42,245 INFO L276 IsEmpty]: Start isEmpty. Operand 415 states and 548 transitions. [2020-10-13 06:03:42,249 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 104 [2020-10-13 06:03:42,249 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:42,249 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:42,250 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-13 06:03:42,250 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:42,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:42,250 INFO L82 PathProgramCache]: Analyzing trace with hash 411406267, now seen corresponding path program 1 times [2020-10-13 06:03:42,251 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:42,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1789224837] [2020-10-13 06:03:42,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:42,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:42,285 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:42,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:42,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:42,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:44,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:44,858 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 115 [2020-10-13 06:03:44,858 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:03:44,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2583 [2020-10-13 06:03:44,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:44,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:03:44,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:44,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:44,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:44,921 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:44,924 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:44,925 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:44,925 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:44,925 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:44,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:44,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:44,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:44,926 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:44,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:44,941 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:44,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:44,948 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:44,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:44,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:44,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:44,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:44,957 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:44,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:44,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:44,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:44,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:44,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:03:44,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:44,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:44,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:44,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:03:44,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:44,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-13 06:03:44,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:44,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:44,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:03:44,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:03:44,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:45,005 INFO L134 CoverageAnalysis]: Checked inductivity of 23 backedges. 20 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:03:45,006 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1789224837] [2020-10-13 06:03:45,006 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:45,006 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:03:45,007 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709931647] [2020-10-13 06:03:45,007 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:03:45,008 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:45,008 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:03:45,008 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:45,008 INFO L87 Difference]: Start difference. First operand 415 states and 548 transitions. Second operand 7 states. [2020-10-13 06:03:46,298 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:46,298 INFO L93 Difference]: Finished difference Result 1060 states and 1475 transitions. [2020-10-13 06:03:46,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-13 06:03:46,302 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 103 [2020-10-13 06:03:46,303 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:46,310 INFO L225 Difference]: With dead ends: 1060 [2020-10-13 06:03:46,311 INFO L226 Difference]: Without dead ends: 711 [2020-10-13 06:03:46,312 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:03:46,314 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 711 states. [2020-10-13 06:03:46,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 711 to 695. [2020-10-13 06:03:46,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 695 states. [2020-10-13 06:03:46,353 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 695 states to 695 states and 924 transitions. [2020-10-13 06:03:46,353 INFO L78 Accepts]: Start accepts. Automaton has 695 states and 924 transitions. Word has length 103 [2020-10-13 06:03:46,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:46,354 INFO L479 AbstractCegarLoop]: Abstraction has 695 states and 924 transitions. [2020-10-13 06:03:46,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:03:46,354 INFO L276 IsEmpty]: Start isEmpty. Operand 695 states and 924 transitions. [2020-10-13 06:03:46,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-10-13 06:03:46,359 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:46,360 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:03:46,360 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-13 06:03:46,360 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:46,360 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:46,360 INFO L82 PathProgramCache]: Analyzing trace with hash 1505631427, now seen corresponding path program 1 times [2020-10-13 06:03:46,361 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:46,361 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944283831] [2020-10-13 06:03:46,361 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:46,386 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:46,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:46,496 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:46,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:46,897 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:48,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:48,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,484 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:49,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 119 [2020-10-13 06:03:49,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:03:49,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3097 [2020-10-13 06:03:49,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:49,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:49,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:03:49,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:49,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:49,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:49,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:49,550 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:49,550 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:49,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:03:49,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:49,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:49,551 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:49,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:49,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-10-13 06:03:49,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:49,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:49,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:49,588 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:49,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:49,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:03:49,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:49,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:49,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:49,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:49,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:49,592 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:03:49,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:49,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:49,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:49,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:03:49,620 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:49,620 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-13 06:03:49,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:49,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:49,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:03:49,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-13 06:03:49,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:49,655 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:03:49,655 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944283831] [2020-10-13 06:03:49,655 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:49,656 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:03:49,656 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990250745] [2020-10-13 06:03:49,656 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:03:49,657 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:49,657 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:03:49,657 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:49,657 INFO L87 Difference]: Start difference. First operand 695 states and 924 transitions. Second operand 7 states. [2020-10-13 06:03:51,024 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:51,024 INFO L93 Difference]: Finished difference Result 1894 states and 2614 transitions. [2020-10-13 06:03:51,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:03:51,027 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 107 [2020-10-13 06:03:51,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:51,038 INFO L225 Difference]: With dead ends: 1894 [2020-10-13 06:03:51,038 INFO L226 Difference]: Without dead ends: 1265 [2020-10-13 06:03:51,041 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:03:51,045 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1265 states. [2020-10-13 06:03:51,097 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1265 to 1263. [2020-10-13 06:03:51,098 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1263 states. [2020-10-13 06:03:51,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1263 states to 1263 states and 1633 transitions. [2020-10-13 06:03:51,107 INFO L78 Accepts]: Start accepts. Automaton has 1263 states and 1633 transitions. Word has length 107 [2020-10-13 06:03:51,108 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:51,108 INFO L479 AbstractCegarLoop]: Abstraction has 1263 states and 1633 transitions. [2020-10-13 06:03:51,108 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:03:51,108 INFO L276 IsEmpty]: Start isEmpty. Operand 1263 states and 1633 transitions. [2020-10-13 06:03:51,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 114 [2020-10-13 06:03:51,117 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:51,118 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:03:51,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-13 06:03:51,118 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:51,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:51,119 INFO L82 PathProgramCache]: Analyzing trace with hash 458766415, now seen corresponding path program 1 times [2020-10-13 06:03:51,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:51,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1380014002] [2020-10-13 06:03:51,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:51,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:51,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:51,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:51,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:53,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,352 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 125 [2020-10-13 06:03:55,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:03:55,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4197 [2020-10-13 06:03:55,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:55,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:03:55,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-13 06:03:55,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:03:55,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:03:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:03:55,433 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,433 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:03:55,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:03:55,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:03:55,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:55,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:03:55,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,454 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,462 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:03:55,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-13 06:03:55,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:03:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:03:55,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:03:55,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:55,467 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:03:55,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:55,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:55,500 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:03:55,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-13 06:03:55,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:03:55,501 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-13 06:03:55,501 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:03:55,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:03:55,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:03:55,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 20 [2020-10-13 06:03:55,502 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:03:55,530 INFO L134 CoverageAnalysis]: Checked inductivity of 35 backedges. 32 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:03:55,530 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1380014002] [2020-10-13 06:03:55,530 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:03:55,531 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:03:55,531 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [156524480] [2020-10-13 06:03:55,531 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:03:55,532 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:03:55,532 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:03:55,532 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:03:55,532 INFO L87 Difference]: Start difference. First operand 1263 states and 1633 transitions. Second operand 7 states. [2020-10-13 06:03:57,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:03:57,312 INFO L93 Difference]: Finished difference Result 3455 states and 4450 transitions. [2020-10-13 06:03:57,312 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:03:57,313 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 113 [2020-10-13 06:03:57,317 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:03:57,330 INFO L225 Difference]: With dead ends: 3455 [2020-10-13 06:03:57,330 INFO L226 Difference]: Without dead ends: 2258 [2020-10-13 06:03:57,335 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:03:57,339 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2258 states. [2020-10-13 06:03:57,401 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2258 to 1835. [2020-10-13 06:03:57,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1835 states. [2020-10-13 06:03:57,410 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1835 states to 1835 states and 2212 transitions. [2020-10-13 06:03:57,411 INFO L78 Accepts]: Start accepts. Automaton has 1835 states and 2212 transitions. Word has length 113 [2020-10-13 06:03:57,411 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:03:57,411 INFO L479 AbstractCegarLoop]: Abstraction has 1835 states and 2212 transitions. [2020-10-13 06:03:57,411 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:03:57,411 INFO L276 IsEmpty]: Start isEmpty. Operand 1835 states and 2212 transitions. [2020-10-13 06:03:57,415 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 119 [2020-10-13 06:03:57,415 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:03:57,416 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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] [2020-10-13 06:03:57,416 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-13 06:03:57,417 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:03:57,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:03:57,417 INFO L82 PathProgramCache]: Analyzing trace with hash -257398086, now seen corresponding path program 1 times [2020-10-13 06:03:57,417 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:03:57,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1643340015] [2020-10-13 06:03:57,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:03:57,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:03:57,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:57,676 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:58,321 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:03:58,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,447 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,447 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 132 [2020-10-13 06:04:02,447 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:04:02,447 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-13 06:04:02,448 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:02,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 38 [2020-10-13 06:04:02,448 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-13 06:04:02,448 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:02,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:02,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:02,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:02,522 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:02,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:02,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:02,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:02,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:02,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:02,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:02,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,544 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,544 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:04:02,544 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:02,545 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:02,545 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:02,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:02,545 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:02,546 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:02,548 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:04:02,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:02,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,565 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:02,566 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:02,566 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:02,566 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:02,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:02,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:04:02,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:02,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 06:04:02,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:02,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:02,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:02,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-10-13 06:04:02,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:02,590 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:02,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:02,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:02,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:04:02,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 10 [2020-10-13 06:04:02,591 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:02,624 INFO L134 CoverageAnalysis]: Checked inductivity of 55 backedges. 43 proven. 2 refuted. 0 times theorem prover too weak. 10 trivial. 0 not checked. [2020-10-13 06:04:02,624 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1643340015] [2020-10-13 06:04:02,625 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:02,625 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:04:02,625 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [150314222] [2020-10-13 06:04:02,626 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:04:02,626 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:02,626 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:04:02,626 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:04:02,626 INFO L87 Difference]: Start difference. First operand 1835 states and 2212 transitions. Second operand 7 states. [2020-10-13 06:04:04,170 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:04,170 INFO L93 Difference]: Finished difference Result 4208 states and 5080 transitions. [2020-10-13 06:04:04,171 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:04:04,171 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 118 [2020-10-13 06:04:04,171 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:04,184 INFO L225 Difference]: With dead ends: 4208 [2020-10-13 06:04:04,184 INFO L226 Difference]: Without dead ends: 2439 [2020-10-13 06:04:04,189 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:04:04,192 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2439 states. [2020-10-13 06:04:04,252 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2439 to 2286. [2020-10-13 06:04:04,252 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2286 states. [2020-10-13 06:04:04,258 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2286 states to 2286 states and 2747 transitions. [2020-10-13 06:04:04,259 INFO L78 Accepts]: Start accepts. Automaton has 2286 states and 2747 transitions. Word has length 118 [2020-10-13 06:04:04,259 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:04,259 INFO L479 AbstractCegarLoop]: Abstraction has 2286 states and 2747 transitions. [2020-10-13 06:04:04,259 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:04:04,260 INFO L276 IsEmpty]: Start isEmpty. Operand 2286 states and 2747 transitions. [2020-10-13 06:04:04,264 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-10-13 06:04:04,264 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:04,265 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:04,265 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-13 06:04:04,265 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:04,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:04,265 INFO L82 PathProgramCache]: Analyzing trace with hash -755262302, now seen corresponding path program 1 times [2020-10-13 06:04:04,266 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:04,266 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1182353833] [2020-10-13 06:04:04,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:04,292 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:04,314 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:04,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:05,379 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:05,380 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 134 [2020-10-13 06:04:05,380 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-13 06:04:05,380 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1086 [2020-10-13 06:04:05,380 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:05,380 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:05,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 51 [2020-10-13 06:04:05,381 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:04:05,381 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:05,796 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:05,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:05,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:05,805 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:05,806 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:05,806 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:05,806 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:04:05,807 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:05,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:05,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-13 06:04:05,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:05,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:05,863 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:05,899 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:05,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:05,900 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:05,900 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 44 [2020-10-13 06:04:05,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:05,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:05,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 36 [2020-10-13 06:04:05,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:06,050 INFO L134 CoverageAnalysis]: Checked inductivity of 38 backedges. 37 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-13 06:04:06,052 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1182353833] [2020-10-13 06:04:06,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:06,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:06,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2125283399] [2020-10-13 06:04:06,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:06,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:06,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:06,059 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:06,059 INFO L87 Difference]: Start difference. First operand 2286 states and 2747 transitions. Second operand 13 states. [2020-10-13 06:04:07,069 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 90 [2020-10-13 06:04:07,462 WARN L193 SmtUtils]: Spent 154.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 89 [2020-10-13 06:04:07,691 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 88 [2020-10-13 06:04:07,908 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification. DAG size of input: 94 DAG size of output: 87 [2020-10-13 06:04:08,275 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 85 [2020-10-13 06:04:08,537 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:08,537 INFO L93 Difference]: Finished difference Result 4574 states and 5562 transitions. [2020-10-13 06:04:08,543 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-13 06:04:08,544 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 124 [2020-10-13 06:04:08,544 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:08,555 INFO L225 Difference]: With dead ends: 4574 [2020-10-13 06:04:08,555 INFO L226 Difference]: Without dead ends: 2354 [2020-10-13 06:04:08,561 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 51 ImplicationChecksByTransitivity, 1.5s TimeCoverageRelationStatistics Valid=131, Invalid=289, Unknown=0, NotChecked=0, Total=420 [2020-10-13 06:04:08,564 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2354 states. [2020-10-13 06:04:08,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2354 to 2346. [2020-10-13 06:04:08,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2346 states. [2020-10-13 06:04:08,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2346 states to 2346 states and 2828 transitions. [2020-10-13 06:04:08,628 INFO L78 Accepts]: Start accepts. Automaton has 2346 states and 2828 transitions. Word has length 124 [2020-10-13 06:04:08,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:08,628 INFO L479 AbstractCegarLoop]: Abstraction has 2346 states and 2828 transitions. [2020-10-13 06:04:08,629 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:08,629 INFO L276 IsEmpty]: Start isEmpty. Operand 2346 states and 2828 transitions. [2020-10-13 06:04:08,634 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 130 [2020-10-13 06:04:08,634 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:08,635 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-13 06:04:08,635 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-13 06:04:08,635 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:08,635 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:08,636 INFO L82 PathProgramCache]: Analyzing trace with hash 1252495140, now seen corresponding path program 1 times [2020-10-13 06:04:08,636 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:08,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1979905392] [2020-10-13 06:04:08,636 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:08,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:08,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:08,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:09,195 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:09,195 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-13 06:04:09,195 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-13 06:04:09,195 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 535 [2020-10-13 06:04:09,196 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:09,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:09,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-13 06:04:09,196 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:04:09,196 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:09,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:09,273 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:09,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:09,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:09,279 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:09,279 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:09,279 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:09,280 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:09,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:09,280 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:09,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:09,281 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:09,307 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:09,309 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:09,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:09,321 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:09,322 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-13 06:04:09,322 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:09,323 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:09,323 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:09,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:09,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:09,324 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-13 06:04:09,324 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:09,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-13 06:04:09,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:09,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:09,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:09,357 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:09,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:09,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-13 06:04:09,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:09,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:09,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:04:09,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:04:09,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:09,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 34 [2020-10-13 06:04:09,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:09,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:09,401 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:09,402 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:04:09,402 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:09,402 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:09,402 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:09,402 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:04:09,403 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:09,403 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:09,426 INFO L134 CoverageAnalysis]: Checked inductivity of 74 backedges. 49 proven. 14 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-13 06:04:09,426 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1979905392] [2020-10-13 06:04:09,426 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:09,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:04:09,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1056577038] [2020-10-13 06:04:09,427 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:04:09,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:09,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:04:09,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:04:09,428 INFO L87 Difference]: Start difference. First operand 2346 states and 2828 transitions. Second operand 7 states. [2020-10-13 06:04:10,796 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:10,797 INFO L93 Difference]: Finished difference Result 4620 states and 5585 transitions. [2020-10-13 06:04:10,800 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:04:10,801 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 129 [2020-10-13 06:04:10,801 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:10,809 INFO L225 Difference]: With dead ends: 4620 [2020-10-13 06:04:10,809 INFO L226 Difference]: Without dead ends: 2152 [2020-10-13 06:04:10,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:04:10,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2152 states. [2020-10-13 06:04:10,864 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2152 to 1878. [2020-10-13 06:04:10,864 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1878 states. [2020-10-13 06:04:10,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1878 states to 1878 states and 2148 transitions. [2020-10-13 06:04:10,868 INFO L78 Accepts]: Start accepts. Automaton has 1878 states and 2148 transitions. Word has length 129 [2020-10-13 06:04:10,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:10,869 INFO L479 AbstractCegarLoop]: Abstraction has 1878 states and 2148 transitions. [2020-10-13 06:04:10,869 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:04:10,869 INFO L276 IsEmpty]: Start isEmpty. Operand 1878 states and 2148 transitions. [2020-10-13 06:04:10,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 142 [2020-10-13 06:04:10,872 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:10,873 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 06:04:10,873 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-13 06:04:10,873 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:10,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:10,873 INFO L82 PathProgramCache]: Analyzing trace with hash 670360317, now seen corresponding path program 1 times [2020-10-13 06:04:10,874 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:10,874 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1171399559] [2020-10-13 06:04:10,874 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:10,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:10,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:11,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:11,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:11,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:12,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:12,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:12,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 153 [2020-10-13 06:04:12,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-13 06:04:12,903 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1995 [2020-10-13 06:04:12,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:12,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:12,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 70 [2020-10-13 06:04:12,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 71 [2020-10-13 06:04:12,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-13 06:04:13,522 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 42 [2020-10-13 06:04:13,682 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 40 [2020-10-13 06:04:13,817 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 38 [2020-10-13 06:04:13,958 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 36 [2020-10-13 06:04:14,101 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification. DAG size of input: 71 DAG size of output: 33 [2020-10-13 06:04:14,151 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:14,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:14,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:14,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:14,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:14,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,188 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:14,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,192 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,192 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-10-13 06:04:14,192 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:14,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:14,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:14,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:14,193 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:14,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 16 [2020-10-13 06:04:14,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:14,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:14,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:14,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 51 [2020-10-13 06:04:14,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:14,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:04:14,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:14,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:14,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:14,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 45 [2020-10-13 06:04:14,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:14,365 INFO L134 CoverageAnalysis]: Checked inductivity of 60 backedges. 53 proven. 2 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-10-13 06:04:14,366 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1171399559] [2020-10-13 06:04:14,366 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:14,366 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:14,367 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856896042] [2020-10-13 06:04:14,367 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:14,367 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:14,367 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:14,367 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:14,368 INFO L87 Difference]: Start difference. First operand 1878 states and 2148 transitions. Second operand 13 states. [2020-10-13 06:04:15,077 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 97 [2020-10-13 06:04:15,390 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 93 [2020-10-13 06:04:15,755 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 92 [2020-10-13 06:04:16,064 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 91 [2020-10-13 06:04:16,307 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification. DAG size of input: 105 DAG size of output: 90 [2020-10-13 06:04:16,647 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 104 DAG size of output: 88 [2020-10-13 06:04:17,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:17,234 INFO L93 Difference]: Finished difference Result 3764 states and 4340 transitions. [2020-10-13 06:04:17,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:04:17,235 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 141 [2020-10-13 06:04:17,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:17,243 INFO L225 Difference]: With dead ends: 3764 [2020-10-13 06:04:17,243 INFO L226 Difference]: Without dead ends: 1952 [2020-10-13 06:04:17,248 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 10 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=141, Invalid=321, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:04:17,250 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1952 states. [2020-10-13 06:04:17,289 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1952 to 1946. [2020-10-13 06:04:17,290 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1946 states. [2020-10-13 06:04:17,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1946 states to 1946 states and 2221 transitions. [2020-10-13 06:04:17,294 INFO L78 Accepts]: Start accepts. Automaton has 1946 states and 2221 transitions. Word has length 141 [2020-10-13 06:04:17,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:17,294 INFO L479 AbstractCegarLoop]: Abstraction has 1946 states and 2221 transitions. [2020-10-13 06:04:17,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:17,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1946 states and 2221 transitions. [2020-10-13 06:04:17,298 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-13 06:04:17,298 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:17,299 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:04:17,299 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-13 06:04:17,299 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:17,299 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:17,300 INFO L82 PathProgramCache]: Analyzing trace with hash -2113258209, now seen corresponding path program 1 times [2020-10-13 06:04:17,300 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:17,300 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1962415112] [2020-10-13 06:04:17,300 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:17,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:17,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:17,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:18,067 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:18,975 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:18,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 172 [2020-10-13 06:04:18,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-13 06:04:18,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1640 [2020-10-13 06:04:18,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 89 [2020-10-13 06:04:18,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-10-13 06:04:18,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:19,442 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 41 [2020-10-13 06:04:19,586 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 39 [2020-10-13 06:04:19,728 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 37 [2020-10-13 06:04:19,866 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification. DAG size of input: 77 DAG size of output: 35 [2020-10-13 06:04:20,012 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 32 [2020-10-13 06:04:20,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:20,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:20,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:20,075 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:20,076 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:20,076 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:20,076 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:20,076 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:20,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:20,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:20,077 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:20,077 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:20,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:20,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:20,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:20,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:20,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:20,118 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:20,118 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-13 06:04:20,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:20,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:20,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:20,119 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:20,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:20,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:04:20,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:20,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:20,176 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:20,176 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 37 [2020-10-13 06:04:20,176 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:20,177 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-13 06:04:20,177 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:20,177 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:04:20,178 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:20,331 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 72 proven. 2 refuted. 0 times theorem prover too weak. 33 trivial. 0 not checked. [2020-10-13 06:04:20,332 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1962415112] [2020-10-13 06:04:20,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:20,332 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:20,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [325098554] [2020-10-13 06:04:20,333 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:20,333 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:20,333 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:20,333 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:20,333 INFO L87 Difference]: Start difference. First operand 1946 states and 2221 transitions. Second operand 13 states. [2020-10-13 06:04:20,995 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 96 [2020-10-13 06:04:21,342 WARN L193 SmtUtils]: Spent 235.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 93 [2020-10-13 06:04:21,673 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 92 [2020-10-13 06:04:21,822 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification. DAG size of input: 53 DAG size of output: 42 [2020-10-13 06:04:22,061 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 91 [2020-10-13 06:04:22,343 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification. DAG size of input: 103 DAG size of output: 90 [2020-10-13 06:04:22,673 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification. DAG size of input: 102 DAG size of output: 88 [2020-10-13 06:04:22,996 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:22,997 INFO L93 Difference]: Finished difference Result 3888 states and 4470 transitions. [2020-10-13 06:04:22,997 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:04:22,997 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 160 [2020-10-13 06:04:22,998 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:23,006 INFO L225 Difference]: With dead ends: 3888 [2020-10-13 06:04:23,006 INFO L226 Difference]: Without dead ends: 1991 [2020-10-13 06:04:23,011 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 9 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 60 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=143, Invalid=319, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:04:23,013 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1991 states. [2020-10-13 06:04:23,053 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1991 to 1982. [2020-10-13 06:04:23,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1982 states. [2020-10-13 06:04:23,056 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1982 states to 1982 states and 2263 transitions. [2020-10-13 06:04:23,056 INFO L78 Accepts]: Start accepts. Automaton has 1982 states and 2263 transitions. Word has length 160 [2020-10-13 06:04:23,057 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:23,057 INFO L479 AbstractCegarLoop]: Abstraction has 1982 states and 2263 transitions. [2020-10-13 06:04:23,057 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:23,057 INFO L276 IsEmpty]: Start isEmpty. Operand 1982 states and 2263 transitions. [2020-10-13 06:04:23,062 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-13 06:04:23,062 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:23,062 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-13 06:04:23,062 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-13 06:04:23,063 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:23,063 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:23,063 INFO L82 PathProgramCache]: Analyzing trace with hash -680910981, now seen corresponding path program 1 times [2020-10-13 06:04:23,063 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:23,063 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1944106469] [2020-10-13 06:04:23,064 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:23,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:23,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:23,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:26,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:26,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:26,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-10-13 06:04:27,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:04:27,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4739 [2020-10-13 06:04:27,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-13 06:04:27,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 31 [2020-10-13 06:04:27,832 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,884 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:27,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,890 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,891 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:27,891 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:27,891 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-13 06:04:27,891 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,891 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:27,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:27,892 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:27,892 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:27,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,932 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:27,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:27,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:27,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-13 06:04:27,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:27,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-13 06:04:27,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:27,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:27,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:27,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:28,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:28,050 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:04:28,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:28,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-13 06:04:28,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:28,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:28,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:04:28,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-10-13 06:04:28,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:28,083 INFO L134 CoverageAnalysis]: Checked inductivity of 113 backedges. 110 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-13 06:04:28,084 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1944106469] [2020-10-13 06:04:28,084 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:28,084 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:04:28,084 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [422077144] [2020-10-13 06:04:28,085 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:04:28,085 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:28,085 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:04:28,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:04:28,085 INFO L87 Difference]: Start difference. First operand 1982 states and 2263 transitions. Second operand 7 states. [2020-10-13 06:04:29,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:29,227 INFO L93 Difference]: Finished difference Result 4637 states and 5344 transitions. [2020-10-13 06:04:29,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:04:29,227 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 174 [2020-10-13 06:04:29,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:29,237 INFO L225 Difference]: With dead ends: 4637 [2020-10-13 06:04:29,238 INFO L226 Difference]: Without dead ends: 2721 [2020-10-13 06:04:29,243 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:04:29,246 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2721 states. [2020-10-13 06:04:29,300 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2721 to 2707. [2020-10-13 06:04:29,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2707 states. [2020-10-13 06:04:29,304 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2707 states to 2707 states and 3072 transitions. [2020-10-13 06:04:29,305 INFO L78 Accepts]: Start accepts. Automaton has 2707 states and 3072 transitions. Word has length 174 [2020-10-13 06:04:29,305 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:29,305 INFO L479 AbstractCegarLoop]: Abstraction has 2707 states and 3072 transitions. [2020-10-13 06:04:29,305 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:04:29,305 INFO L276 IsEmpty]: Start isEmpty. Operand 2707 states and 3072 transitions. [2020-10-13 06:04:29,312 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-13 06:04:29,313 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:29,315 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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 06:04:29,315 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-13 06:04:29,316 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:29,316 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:29,316 INFO L82 PathProgramCache]: Analyzing trace with hash -1122348730, now seen corresponding path program 1 times [2020-10-13 06:04:29,316 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:29,316 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1834068937] [2020-10-13 06:04:29,317 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:29,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:29,379 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:29,597 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:29,597 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-10-13 06:04:29,597 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:29,597 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 241 [2020-10-13 06:04:29,597 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:29,597 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:29,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 104 [2020-10-13 06:04:29,598 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:04:29,598 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:29,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:29,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:29,663 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:29,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:29,666 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:29,666 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:29,666 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:29,666 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:29,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:29,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:29,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:29,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:29,684 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:29,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:29,692 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:29,692 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:29,692 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:29,692 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:29,693 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:29,693 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:29,699 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:04:29,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:29,701 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:29,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:29,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:04:29,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:29,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:29,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:29,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:29,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:29,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:29,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:29,717 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:04:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:29,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:29,727 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:29,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-13 06:04:29,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:29,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:29,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:29,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-10-13 06:04:29,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:29,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-13 06:04:29,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:29,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:29,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:29,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:29,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:29,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:29,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:29,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:29,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:04:29,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:04:29,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:29,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 113 [2020-10-13 06:04:29,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:29,803 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:29,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:29,809 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:04:29,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:29,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:29,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:29,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:29,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:04:29,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:29,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:29,836 INFO L134 CoverageAnalysis]: Checked inductivity of 291 backedges. 168 proven. 14 refuted. 0 times theorem prover too weak. 109 trivial. 0 not checked. [2020-10-13 06:04:29,837 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1834068937] [2020-10-13 06:04:29,837 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:29,837 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:04:29,837 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1645632570] [2020-10-13 06:04:29,838 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:04:29,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:29,838 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:04:29,838 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:04:29,838 INFO L87 Difference]: Start difference. First operand 2707 states and 3072 transitions. Second operand 7 states. [2020-10-13 06:04:31,087 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:31,088 INFO L93 Difference]: Finished difference Result 5350 states and 6083 transitions. [2020-10-13 06:04:31,088 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-13 06:04:31,089 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 208 [2020-10-13 06:04:31,089 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:31,099 INFO L225 Difference]: With dead ends: 5350 [2020-10-13 06:04:31,100 INFO L226 Difference]: Without dead ends: 2709 [2020-10-13 06:04:31,105 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-13 06:04:31,108 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2709 states. [2020-10-13 06:04:31,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2709 to 2570. [2020-10-13 06:04:31,155 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2570 states. [2020-10-13 06:04:31,159 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2570 states to 2570 states and 2876 transitions. [2020-10-13 06:04:31,159 INFO L78 Accepts]: Start accepts. Automaton has 2570 states and 2876 transitions. Word has length 208 [2020-10-13 06:04:31,160 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:31,160 INFO L479 AbstractCegarLoop]: Abstraction has 2570 states and 2876 transitions. [2020-10-13 06:04:31,160 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:04:31,160 INFO L276 IsEmpty]: Start isEmpty. Operand 2570 states and 2876 transitions. [2020-10-13 06:04:31,166 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-13 06:04:31,166 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:31,167 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:04:31,167 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-13 06:04:31,167 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:31,167 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:31,168 INFO L82 PathProgramCache]: Analyzing trace with hash 1461031906, now seen corresponding path program 1 times [2020-10-13 06:04:31,168 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:31,168 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144450915] [2020-10-13 06:04:31,168 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:31,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:31,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:31,338 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:31,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:31,493 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:32,395 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:32,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:33,688 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:33,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 224 [2020-10-13 06:04:33,689 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-13 06:04:33,689 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2475 [2020-10-13 06:04:33,689 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-10-13 06:04:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 141 [2020-10-13 06:04:33,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-10-13 06:04:33,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:34,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,178 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:34,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-13 06:04:34,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:34,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,224 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 64 [2020-10-13 06:04:34,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-13 06:04:34,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,224 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,224 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,234 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 71 [2020-10-13 06:04:34,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,237 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 52 [2020-10-13 06:04:34,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-13 06:04:34,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:34,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:34,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-13 06:04:34,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:34,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:34,262 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:34,262 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 14 [2020-10-13 06:04:34,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:34,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-13 06:04:34,263 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:34,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:34,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:34,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-10-13 06:04:34,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:34,379 INFO L134 CoverageAnalysis]: Checked inductivity of 195 backedges. 121 proven. 3 refuted. 0 times theorem prover too weak. 71 trivial. 0 not checked. [2020-10-13 06:04:34,379 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144450915] [2020-10-13 06:04:34,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:34,380 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-13 06:04:34,380 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452990190] [2020-10-13 06:04:34,381 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-13 06:04:34,381 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:34,381 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-13 06:04:34,381 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=37, Invalid=119, Unknown=0, NotChecked=0, Total=156 [2020-10-13 06:04:34,381 INFO L87 Difference]: Start difference. First operand 2570 states and 2876 transitions. Second operand 13 states. [2020-10-13 06:04:35,401 WARN L193 SmtUtils]: Spent 181.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 92 [2020-10-13 06:04:35,639 WARN L193 SmtUtils]: Spent 184.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 91 [2020-10-13 06:04:35,860 WARN L193 SmtUtils]: Spent 171.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 90 [2020-10-13 06:04:36,282 WARN L193 SmtUtils]: Spent 169.00 ms on a formula simplification. DAG size of input: 97 DAG size of output: 88 [2020-10-13 06:04:36,657 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification. DAG size of input: 96 DAG size of output: 86 [2020-10-13 06:04:36,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:36,864 INFO L93 Difference]: Finished difference Result 5218 states and 5919 transitions. [2020-10-13 06:04:36,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-13 06:04:36,865 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 210 [2020-10-13 06:04:36,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:36,874 INFO L225 Difference]: With dead ends: 5218 [2020-10-13 06:04:36,875 INFO L226 Difference]: Without dead ends: 2716 [2020-10-13 06:04:36,887 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.6s TimeCoverageRelationStatistics Valid=142, Invalid=320, Unknown=0, NotChecked=0, Total=462 [2020-10-13 06:04:36,891 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2716 states. [2020-10-13 06:04:36,951 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2716 to 2712. [2020-10-13 06:04:36,951 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2712 states. [2020-10-13 06:04:36,955 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2712 states to 2712 states and 3032 transitions. [2020-10-13 06:04:36,956 INFO L78 Accepts]: Start accepts. Automaton has 2712 states and 3032 transitions. Word has length 210 [2020-10-13 06:04:36,957 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:36,957 INFO L479 AbstractCegarLoop]: Abstraction has 2712 states and 3032 transitions. [2020-10-13 06:04:36,957 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-13 06:04:36,957 INFO L276 IsEmpty]: Start isEmpty. Operand 2712 states and 3032 transitions. [2020-10-13 06:04:36,964 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-10-13 06:04:36,965 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:36,965 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 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 06:04:36,965 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-13 06:04:36,965 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:36,966 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:36,966 INFO L82 PathProgramCache]: Analyzing trace with hash -509955154, now seen corresponding path program 1 times [2020-10-13 06:04:36,966 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:36,966 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [712219980] [2020-10-13 06:04:36,966 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:37,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:37,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:37,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 238 [2020-10-13 06:04:37,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:37,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-10-13 06:04:37,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 116 [2020-10-13 06:04:37,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-13 06:04:37,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:37,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-13 06:04:37,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:37,331 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,333 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:37,334 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-13 06:04:37,334 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:37,334 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-13 06:04:37,334 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:37,334 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:37,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:37,335 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:37,335 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:37,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-13 06:04:37,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:37,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,362 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:37,362 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 42 [2020-10-13 06:04:37,362 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:37,362 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:37,363 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:37,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:37,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:37,363 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:37,363 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:37,369 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-10-13 06:04:37,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:37,371 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,381 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:37,381 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 34 [2020-10-13 06:04:37,381 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:37,382 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-13 06:04:37,382 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:37,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:37,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:37,382 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:37,382 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:37,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 82 [2020-10-13 06:04:37,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:37,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,410 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:37,410 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-13 06:04:37,410 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:37,410 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-13 06:04:37,411 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:37,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-13 06:04:37,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-13 06:04:37,411 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-13 06:04:37,411 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:37,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 110 [2020-10-13 06:04:37,420 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:37,422 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:37,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 16 [2020-10-13 06:04:37,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:37,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-13 06:04:37,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:37,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-13 06:04:37,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-13 06:04:37,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-13 06:04:37,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:37,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-13 06:04:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-13 06:04:37,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-13 06:04:37,504 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-13 06:04:37,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 21 [2020-10-13 06:04:37,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-13 06:04:37,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-13 06:04:37,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: NARROWEST [2020-10-13 06:04:37,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-13 06:04:37,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 18 [2020-10-13 06:04:37,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-13 06:04:37,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-13 06:04:37,538 INFO L134 CoverageAnalysis]: Checked inductivity of 331 backedges. 180 proven. 14 refuted. 0 times theorem prover too weak. 137 trivial. 0 not checked. [2020-10-13 06:04:37,538 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [712219980] [2020-10-13 06:04:37,539 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-13 06:04:37,539 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-13 06:04:37,539 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [771680936] [2020-10-13 06:04:37,540 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-13 06:04:37,540 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-13 06:04:37,540 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-13 06:04:37,540 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-13 06:04:37,540 INFO L87 Difference]: Start difference. First operand 2712 states and 3032 transitions. Second operand 7 states. [2020-10-13 06:04:38,822 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-13 06:04:38,822 INFO L93 Difference]: Finished difference Result 5352 states and 5993 transitions. [2020-10-13 06:04:38,823 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-13 06:04:38,824 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 220 [2020-10-13 06:04:38,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-13 06:04:38,831 INFO L225 Difference]: With dead ends: 5352 [2020-10-13 06:04:38,831 INFO L226 Difference]: Without dead ends: 2708 [2020-10-13 06:04:38,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=42, Invalid=90, Unknown=0, NotChecked=0, Total=132 [2020-10-13 06:04:38,840 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2708 states. [2020-10-13 06:04:38,889 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2708 to 2569. [2020-10-13 06:04:38,889 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2569 states. [2020-10-13 06:04:38,893 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2569 states to 2569 states and 2829 transitions. [2020-10-13 06:04:38,893 INFO L78 Accepts]: Start accepts. Automaton has 2569 states and 2829 transitions. Word has length 220 [2020-10-13 06:04:38,894 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-13 06:04:38,894 INFO L479 AbstractCegarLoop]: Abstraction has 2569 states and 2829 transitions. [2020-10-13 06:04:38,894 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-13 06:04:38,894 INFO L276 IsEmpty]: Start isEmpty. Operand 2569 states and 2829 transitions. [2020-10-13 06:04:38,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 246 [2020-10-13 06:04:38,901 INFO L414 BasicCegarLoop]: Found error trace [2020-10-13 06:04:38,901 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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] [2020-10-13 06:04:38,901 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-13 06:04:38,902 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-13 06:04:38,902 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-13 06:04:38,902 INFO L82 PathProgramCache]: Analyzing trace with hash -368889112, now seen corresponding path program 1 times [2020-10-13 06:04:38,902 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-13 06:04:38,902 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1332057231] [2020-10-13 06:04:38,903 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-13 06:04:38,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-13 06:04:38,957 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-13 06:04:38,957 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-10-13 06:04:38,962 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-13 06:04:39,006 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 13.10 06:04:39 BoogieIcfgContainer [2020-10-13 06:04:39,007 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-13 06:04:39,008 INFO L168 Benchmark]: Toolchain (without parser) took 73947.51 ms. Allocated memory was 140.5 MB in the beginning and 1.0 GB in the end (delta: 907.0 MB). Free memory was 101.8 MB in the beginning and 843.3 MB in the end (delta: -741.5 MB). Peak memory consumption was 165.5 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:39,009 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-10-13 06:04:39,010 INFO L168 Benchmark]: CACSL2BoogieTranslator took 830.44 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.6 MB in the beginning and 170.6 MB in the end (delta: -69.1 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:39,010 INFO L168 Benchmark]: Boogie Preprocessor took 149.03 ms. Allocated memory is still 205.0 MB. Free memory was 170.6 MB in the beginning and 165.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:39,011 INFO L168 Benchmark]: RCFGBuilder took 1265.84 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 165.7 MB in the beginning and 178.0 MB in the end (delta: -12.3 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:39,011 INFO L168 Benchmark]: TraceAbstraction took 71695.98 ms. Allocated memory was 238.6 MB in the beginning and 1.0 GB in the end (delta: 809.0 MB). Free memory was 178.0 MB in the beginning and 843.3 MB in the end (delta: -665.3 MB). Peak memory consumption was 143.7 MB. Max. memory is 7.1 GB. [2020-10-13 06:04:39,014 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 140.5 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 830.44 ms. Allocated memory was 140.5 MB in the beginning and 205.0 MB in the end (delta: 64.5 MB). Free memory was 101.6 MB in the beginning and 170.6 MB in the end (delta: -69.1 MB). Peak memory consumption was 33.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 149.03 ms. Allocated memory is still 205.0 MB. Free memory was 170.6 MB in the beginning and 165.7 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1265.84 ms. Allocated memory was 205.0 MB in the beginning and 238.6 MB in the end (delta: 33.6 MB). Free memory was 165.7 MB in the beginning and 178.0 MB in the end (delta: -12.3 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 71695.98 ms. Allocated memory was 238.6 MB in the beginning and 1.0 GB in the end (delta: 809.0 MB). Free memory was 178.0 MB in the beginning and 843.3 MB in the end (delta: -665.3 MB). Peak memory consumption was 143.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 407]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L7] int a= 1; [L8] int d= 4; [L9] int e= 5; [L10] int f= 6; [L11] int c= 3; [L12] int b= 2; [L15] int u = 21; [L16] int v = 22; [L17] int w = 23; [L18] int x = 24; [L19] int y = 25; [L20] int z = 26; [L22] int a17 = 1; [L23] int a7 = 0; [L24] int a20 = 1; [L25] int a8 = 15; [L26] int a12 = 8; [L27] int a16 = 5; [L28] int a21 = 1; [L580] int output = -1; [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND TRUE ((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15))) [L334] a17 = 0 [L335] a16 = 4 [L336] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND TRUE (((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4)) [L269] a20 = 0 [L270] a17 = 1 [L271] a16 = 6 [L272] return 21; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND TRUE (((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6)) [L63] a17 = 0 [L64] return 26; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND TRUE ((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))))))) [L73] a7 = 1 [L74] a17 = 1 [L75] a21 = 0 [L76] a20 = 1 [L77] a8 = 13 [L78] a16 = 5 [L79] return 26; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL, EXPR calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND TRUE (((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1)) [L103] a20 = 0 [L104] a8 = 15 [L105] a17 = 0 [L106] a21 = 1 [L107] return -1; [L591] RET, EXPR calculate_output(input) [L591] output = calculate_output(input) [L583] COND TRUE 1 [L586] int input; [L587] input = __VERIFIER_nondet_int() [L588] COND FALSE !((input != 1) && (input != 2) && (input != 3) && (input != 4) && (input != 5) && (input != 6)) [L591] CALL calculate_output(input) [L31] COND FALSE !((((a8==15)&&(((((a21==1)&&(((a16==5)||(a16==6))&&(input==1)))&&(a20==1))&&(a17==1))&&!(a7==1)))&&(a12==8))) [L35] COND FALSE !((((((((input==5)&&((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5))))&&(a20==1))&&(a12==8))&&(a7==1))&&!(a21==1))&&(a8==13))) [L43] COND FALSE !(((!(a7==1)&&((((a16==6)&&((a21==1)&&((a17==1)&&(input==3))))&&!(a20==1))&&(a8==15)))&&(a12==8))) [L49] COND FALSE !(((a17==1)&&((!(a7==1)&&(((a21==1)&&((((a16==5)||(a16==6))&&(input==6))&&(a20==1)))&&(a8==15)))&&(a12==8)))) [L54] COND FALSE !((((input==3)&&((((a16==6)&&((!(a20==1)&&(!(a7==1)&&!(a17==1)))&&(a8==15)))&&(a21==1))||((((a8==13)&&((a20==1)&&((a17==1)&&(a7==1))))&&(a16==4))&&!(a21==1))))&&(a12==8))) [L62] COND FALSE !((((a17==1)&&(((a21==1)&&((!(a7==1)&&((input==4)&&(a8==15)))&&!(a20==1)))&&(a12==8)))&&(a16==6))) [L65] COND FALSE !((((a12==8)&&(((a21==1)&&((((input==5)&&!(a7==1))&&(a8==15))&&(a16==5)))&&!(a20==1)))&&!(a17==1))) [L72] COND FALSE !(((a12==8)&&((input==1)&&(((a21==1)&&(((a8==15)&&((!(a17==1)&&!(a7==1))&&!(a20==1)))&&(a16==6)))||(!(a21==1)&&((a16==4)&&((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1))))))))) [L80] COND FALSE !(((((!(a17==1)&&(!(a7==1)&&((a21==1)&&((a8==15)&&(input==4)))))&&!(a20==1))&&(a12==8))&&(a16==4))) [L84] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&(((a20==1)&&((a17==1)&&(a7==1)))&&(a8==13)))&&!(a21==1)))&&(input==2))&&(a12==8))) [L92] COND FALSE !(((a8==13)&&(!(a21==1)&&((((input==3)&&((((a20==1)&&!(a17==1))&&(a16==6))||((!(a20==1)&&(a17==1))&&(a16==4))))&&(a12==8))&&(a7==1))))) [L97] COND FALSE !(((((a21==1)&&((a12==8)&&((input==1)&&(((!(a20==1)&&(a17==1))&&(a16==4))||(((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&(!(a17==1)&&(a20==1))))))))&&!(a7==1))&&(a8==15))) [L102] COND FALSE !((((a16==5)&&(((a7==1)&&((!(a21==1)&&((a12==8)&&(input==3)))&&(a8==13)))&&(a17==1)))&&(a20==1))) [L108] COND FALSE !(((a17==1)&&(((a8==15)&&(((a12==8)&&((!(a7==1)&&(input==5))&&(a21==1)))&&!(a20==1)))&&(a16==5)))) [L114] COND FALSE !((!(a7==1)&&(((((a21==1)&&(((a8==15)&&(input==5))&&!(a17==1)))&&(a12==8))&&(a20==1))&&(a16==4)))) [L119] COND FALSE !(((!(a21==1)&&(((a12==8)&&((((a16==6)&&((a20==1)&&!(a17==1)))||((!(a20==1)&&(a17==1))&&(a16==4)))&&(input==1)))&&(a8==13)))&&(a7==1))) [L124] COND FALSE !(((a17==1)&&(!(a7==1)&&(((a21==1)&&(((a12==8)&&((input==5)&&((a16==5)||(a16==6))))&&(a20==1)))&&(a8==15))))) [L129] COND FALSE !((((a12==8)&&(!(a21==1)&&((a7==1)&&((a8==13)&&((input==6)&&((((a16==6)&&(a17==1))||((a16==4)&&!(a17==1)))||((a16==5)&&!(a17==1))))))))&&(a20==1))) [L136] COND FALSE !((((a16==5)&&((((a8==15)&&((!(a7==1)&&(input==2))&&(a21==1)))&&(a12==8))&&!(a20==1)))&&!(a17==1))) [L140] COND FALSE !((!(a20==1)&&((a21==1)&&((a16==4)&&((a8==15)&&(((a12==8)&&((input==2)&&!(a7==1)))&&!(a17==1))))))) [L144] COND FALSE !((((a21==1)&&(!(a7==1)&&((!(a20==1)&&(!(a17==1)&&((a12==8)&&(input==6))))&&(a16==4))))&&(a8==15))) [L148] COND FALSE !(((a17==1)&&((((((a12==8)&&((input==4)&&(a8==13)))&&(a20==1))&&!(a21==1))&&(a16==5))&&(a7==1)))) [L152] COND FALSE !(((((a8==13)&&((a12==8)&&((((((a16==6)&&(a17==1))||(!(a17==1)&&(a16==4)))||(!(a17==1)&&(a16==5)))&&(input==1))&&!(a21==1))))&&(a20==1))&&(a7==1))) [L160] COND FALSE !(((a8==13)&&(!(a21==1)&&((((((!(a17==1)&&(a20==1))&&(a16==6))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==5))&&(a7==1))&&(a12==8))))) [L165] COND FALSE !(((!(a21==1)&&((((((a16==6)&&((a20==1)&&!(a17==1)))||(((a17==1)&&!(a20==1))&&(a16==4)))&&(input==4))&&(a7==1))&&(a12==8)))&&(a8==13))) [L173] COND FALSE !((((a21==1)&&(!(a7==1)&&((((((a16==5)&&((a20==1)&&!(a17==1)))||((!(a17==1)&&(a20==1))&&(a16==6)))||((a16==4)&&((a17==1)&&!(a20==1))))&&(input==4))&&(a12==8))))&&(a8==15))) [L178] COND FALSE !(((((((a16==6)&&((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15)))&&(a21==1))||(((a16==4)&&((((a7==1)&&(a17==1))&&(a20==1))&&(a8==13)))&&!(a21==1)))&&(input==4))&&(a12==8))) [L186] COND FALSE !((!(a17==1)&&(((a12==8)&&(!(a20==1)&&(((a8==15)&&((a21==1)&&(input==4)))&&!(a7==1))))&&(a16==5)))) [L189] COND FALSE !((((!(a7==1)&&(((input==2)&&((((a16==5)&&((a20==1)&&!(a17==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a8==15)))&&(a12==8))&&(a21==1))) [L194] COND FALSE !((!(a20==1)&&(((((((input==6)&&(a16==5))&&(a21==1))&&!(a17==1))&&(a12==8))&&!(a7==1))&&(a8==15)))) [L197] COND FALSE !(((a12==8)&&(((((((a21==1)&&(input==5))&&(a8==15))&&(a17==1))&&!(a7==1))&&!(a20==1))&&(a16==6)))) [L203] COND FALSE !(((((a8==15)&&(!(a7==1)&&((((!(a20==1)&&(a17==1))&&(a16==4))||(((!(a17==1)&&(a20==1))&&(a16==5))||((a16==6)&&((a20==1)&&!(a17==1)))))&&(input==6))))&&(a12==8))&&(a21==1))) [L208] COND FALSE !(((a8==15)&&((a16==4)&&(!(a20==1)&&((((a21==1)&&(!(a17==1)&&(input==5)))&&!(a7==1))&&(a12==8)))))) [L214] COND FALSE !(((a17==1)&&((a12==8)&&((a8==15)&&(((!(a7==1)&&(((a16==5)||(a16==6))&&(input==2)))&&(a21==1))&&(a20==1)))))) [L218] COND FALSE !((!(a7==1)&&(((a8==15)&&((!(a17==1)&&((a12==8)&&((input==3)&&(a21==1))))&&(a16==4)))&&(a20==1)))) [L223] COND FALSE !(((a16==5)&&((!(a21==1)&&(((a8==13)&&(((input==2)&&(a20==1))&&(a12==8)))&&(a7==1)))&&(a17==1)))) [L231] COND FALSE !(((a20==1)&&(((a12==8)&&((a7==1)&&((a8==13)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==3)))))&&!(a21==1)))) [L238] COND FALSE !(((a12==8)&&((a7==1)&&(!(a21==1)&&((a8==13)&&((input==6)&&(((a16==6)&&((a20==1)&&!(a17==1)))||((a16==4)&&((a17==1)&&!(a20==1)))))))))) [L245] COND FALSE !(((!(a7==1)&&(!(a17==1)&&((((a16==4)&&((a8==15)&&(input==1)))&&(a12==8))&&(a21==1))))&&(a20==1))) [L250] COND FALSE !(((a17==1)&&(((a21==1)&&(!(a20==1)&&((a12==8)&&((a8==15)&&(!(a7==1)&&(input==1))))))&&(a16==6)))) [L256] COND FALSE !(((a20==1)&&((a12==8)&&((((a17==1)&&((((a16==5)||(a16==6))&&(input==4))&&(a8==15)))&&(a21==1))&&!(a7==1))))) [L261] COND FALSE !(((((a8==13)&&((((!(a21==1)&&(input==6))&&(a20==1))&&(a12==8))&&(a17==1)))&&(a7==1))&&(a16==5))) [L265] COND FALSE !(((a16==5)&&(((((a12==8)&&(!(a7==1)&&((input==2)&&!(a20==1))))&&(a21==1))&&(a17==1))&&(a8==15)))) [L268] COND FALSE !((((a12==8)&&(((!(a17==1)&&((a21==1)&&((input==4)&&!(a7==1))))&&(a8==15))&&(a20==1)))&&(a16==4))) [L273] COND FALSE !(((a7==1)&&((a8==13)&&((a12==8)&&(!(a21==1)&&((input==2)&&((((a20==1)&&!(a17==1))&&(a16==6))||(((a17==1)&&!(a20==1))&&(a16==4))))))))) [L278] COND FALSE !((((((((!(a20==1)&&(!(a17==1)&&!(a7==1)))&&(a8==15))&&(a16==6))&&(a21==1))||((((a8==13)&&(((a17==1)&&(a7==1))&&(a20==1)))&&(a16==4))&&!(a21==1)))&&(input==6))&&(a12==8))) [L286] COND FALSE !(((!(a7==1)&&(!(a17==1)&&(((((input==3)&&(a21==1))&&(a16==4))&&(a8==15))&&(a12==8))))&&!(a20==1))) [L292] COND FALSE !((((((a12==8)&&(((((a17==1)&&!(a20==1))&&(a16==4))||((((a20==1)&&!(a17==1))&&(a16==5))||((!(a17==1)&&(a20==1))&&(a16==6))))&&(input==3)))&&(a8==15))&&(a21==1))&&!(a7==1))) [L299] COND FALSE !((((!(a7==1)&&(((input==5)&&((((a16==5)&&(!(a17==1)&&(a20==1)))||((a16==6)&&((a20==1)&&!(a17==1))))||((a16==4)&&(!(a20==1)&&(a17==1)))))&&(a12==8)))&&(a21==1))&&(a8==15))) [L306] COND FALSE !(((!(a7==1)&&(((a21==1)&&(((a17==1)&&((a12==8)&&(input==2)))&&!(a20==1)))&&(a16==6)))&&(a8==15))) [L312] COND FALSE !(((!(a17==1)&&((a21==1)&&((!(a20==1)&&((a12==8)&&((input==3)&&!(a7==1))))&&(a8==15))))&&(a16==5))) [L316] COND FALSE !((((a16==5)&&(!(a20==1)&&(((((input==6)&&(a21==1))&&(a17==1))&&!(a7==1))&&(a12==8))))&&(a8==15))) [L318] COND FALSE !((!(a7==1)&&((a17==1)&&(((a16==6)&&(!(a20==1)&&(((input==6)&&(a12==8))&&(a21==1))))&&(a8==15))))) [L324] COND FALSE !(((((a21==1)&&((a8==15)&&((a12==8)&&(!(a7==1)&&(!(a17==1)&&(input==2))))))&&(a16==4))&&(a20==1))) [L329] COND FALSE !(((a8==15)&&(((a16==4)&&((a12==8)&&((!(a20==1)&&(!(a7==1)&&(input==1)))&&!(a17==1))))&&(a21==1)))) [L333] COND FALSE !(((a21==1)&&(((a12==8)&&((((a17==1)&&((input==3)&&((a16==5)||(a16==6))))&&!(a7==1))&&(a20==1)))&&(a8==15)))) [L337] COND FALSE !((!(a21==1)&&((a20==1)&&(((a12==8)&&((a8==13)&&((((a16==5)&&!(a17==1))||(((a17==1)&&(a16==6))||(!(a17==1)&&(a16==4))))&&(input==2))))&&(a7==1))))) [L345] COND FALSE !(((a7==1)&&((a12==8)&&((((a20==1)&&(((!(a17==1)&&(a16==5))||(((a17==1)&&(a16==6))||((a16==4)&&!(a17==1))))&&(input==4)))&&(a8==13))&&!(a21==1))))) [L353] COND FALSE !(((a21==1)&&((((!(a7==1)&&((a8==15)&&(!(a20==1)&&(input==4))))&&(a17==1))&&(a16==5))&&(a12==8)))) [L355] COND FALSE !((((!(a7==1)&&((!(a20==1)&&((a21==1)&&((input==3)&&(a17==1))))&&(a8==15)))&&(a12==8))&&(a16==5))) [L361] COND FALSE !(((((!(a17==1)&&(!(a20==1)&&((a8==15)&&((input==1)&&(a16==5)))))&&(a12==8))&&(a21==1))&&!(a7==1))) [L363] COND FALSE !(((((a21==1)&&((a8==15)&&(((a16==5)&&((a12==8)&&(input==1)))&&(a17==1))))&&!(a7==1))&&!(a20==1))) [L365] COND FALSE !(((!(a21==1)&&((a20==1)&&((((a8==13)&&((a7==1)&&(input==5)))&&(a17==1))&&(a12==8))))&&(a16==5))) [L372] COND FALSE !((((!(a7==1)&&((a21==1)&&((((input==6)&&(a20==1))&&(a8==15))&&!(a17==1))))&&(a12==8))&&(a16==4))) [L377] COND FALSE !(((((a20==1)&&(((!(a21==1)&&((a7==1)&&(input==1)))&&(a8==13))&&(a17==1)))&&(a12==8))&&(a16==5))) [L382] COND FALSE !(((a12==8)&&((input==5)&&((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==15))&&(a16==6))&&(a21==1))||(!(a21==1)&&((a16==4)&&(((a20==1)&&((a7==1)&&(a17==1)))&&(a8==13)))))))) [L391] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L394] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L397] COND FALSE !(((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==4))&&(a21==1))) [L400] COND FALSE !((((((((a17==1)&&!(a7==1))&&(a20==1))&&(a8==13))&&(a12==8))&&(a16==6))&&(a21==1))) [L403] COND FALSE !(((((((!(a17==1)&&!(a7==1))&&!(a20==1))&&(a8==14))&&(a12==8))&&(a16==4))&&(a21==1))) [L406] COND TRUE ((((((!(a17==1)&&(a7==1))&&!(a20==1))&&(a8==15))&&(a12==8))&&(a16==5))&&(a21==1)) [L407] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 71.5s, OverallIterations: 16, TraceHistogramMax: 6, AutomataDifference: 30.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 403 SDtfs, 6355 SDslu, 630 SDs, 0 SdLazy, 13685 SolverSat, 1313 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 14.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 345 GetRequests, 136 SyntacticMatches, 9 SemanticMatches, 200 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 442 ImplicationChecksByTransitivity, 15.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=2712occurred in iteration=14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 15 MinimizatonAttempts, 1205 StatesRemovedByMinimization, 13 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 0.5s SatisfiabilityAnalysisTime, 38.8s InterpolantComputationTime, 2320 NumberOfCodeBlocks, 2320 NumberOfCodeBlocksAsserted, 16 NumberOfCheckSat, 2060 ConstructedInterpolants, 0 QuantifiedInterpolants, 2712686 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 15 InterpolantComputations, 1 PerfectInterpolantSequences, 1302/1364 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 incorrect! Received shutdown request...