/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options interpolation-heuristic=FIRST --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem02_label54.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:26:51,704 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:26:51,709 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:26:51,756 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:26:51,757 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:26:51,769 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:26:51,770 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:26:51,774 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:26:51,777 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:26:51,778 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:26:51,779 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:26:51,782 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:26:51,782 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:26:51,787 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:26:51,790 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:26:51,792 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:26:51,794 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:26:51,795 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:26:51,797 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:26:51,804 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:26:51,807 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:26:51,809 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:26:51,810 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:26:51,811 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:26:51,815 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:26:51,815 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:26:51,816 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:26:51,818 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:26:51,819 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:26:51,821 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:26:51,821 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:26:51,822 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:26:51,823 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:26:51,824 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:26:51,825 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:26:51,825 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:26:51,826 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:26:51,826 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:26:51,827 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:26:51,828 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:26:51,829 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:26:51,830 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-21 11:26:51,856 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:26:51,856 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:26:51,858 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:26:51,858 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:26:51,858 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:26:51,858 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:26:51,859 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:26:51,859 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:26:51,859 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:26:51,859 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:26:51,859 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:26:51,860 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:26:51,860 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:26:51,860 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:26:51,860 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:26:51,861 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:26:51,861 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:26:51,861 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:26:51,861 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:26:51,861 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:26:51,862 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:26:51,862 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:26:51,862 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:26:51,862 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:26:51,863 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:26:51,863 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:26:51,863 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:26:51,863 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:26:51,863 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:26:51,864 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-21 11:26:52,373 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:26:52,391 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:26:52,396 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:26:52,398 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:26:52,399 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:26:52,400 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem02_label54.c [2020-09-21 11:26:52,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/197a644f9/65fefcd483444724b6e4575d1eb6ffb1/FLAG4d371edbf [2020-09-21 11:26:53,136 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:26:53,137 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem02_label54.c [2020-09-21 11:26:53,160 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/197a644f9/65fefcd483444724b6e4575d1eb6ffb1/FLAG4d371edbf [2020-09-21 11:26:53,360 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/197a644f9/65fefcd483444724b6e4575d1eb6ffb1 [2020-09-21 11:26:53,375 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:26:53,382 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:26:53,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:26:53,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:26:53,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:26:53,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:26:53" (1/1) ... [2020-09-21 11:26:53,394 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d72532b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:53, skipping insertion in model container [2020-09-21 11:26:53,395 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:26:53" (1/1) ... [2020-09-21 11:26:53,405 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:26:53,461 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:26:53,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:26:53,908 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:26:54,146 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:26:54,180 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:26:54,180 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:54 WrapperNode [2020-09-21 11:26:54,180 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:26:54,181 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:26:54,183 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:26:54,183 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:26:54,205 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:54" (1/1) ... [2020-09-21 11:26:54,207 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:54" (1/1) ... [2020-09-21 11:26:54,243 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:54" (1/1) ... [2020-09-21 11:26:54,244 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:54" (1/1) ... [2020-09-21 11:26:54,309 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:54" (1/1) ... [2020-09-21 11:26:54,337 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:54" (1/1) ... [2020-09-21 11:26:54,351 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:54" (1/1) ... [2020-09-21 11:26:54,364 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:26:54,365 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:26:54,365 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:26:54,365 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:26:54,370 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:54" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:26:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:26:54,487 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:26:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-09-21 11:26:54,488 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:26:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-09-21 11:26:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:26:54,488 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:26:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-09-21 11:26:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:26:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:26:54,489 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:26:55,706 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:26:55,706 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-09-21 11:26:55,718 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:26:55 BoogieIcfgContainer [2020-09-21 11:26:55,718 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:26:55,721 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:26:55,721 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:26:55,725 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:26:55,726 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:26:53" (1/3) ... [2020-09-21 11:26:55,727 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3657346b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:26:55, skipping insertion in model container [2020-09-21 11:26:55,728 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:26:54" (2/3) ... [2020-09-21 11:26:55,728 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3657346b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:26:55, skipping insertion in model container [2020-09-21 11:26:55,729 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:26:55" (3/3) ... [2020-09-21 11:26:55,732 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem02_label54.c [2020-09-21 11:26:55,745 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:26:55,761 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:26:55,786 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:26:55,828 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:26:55,829 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:26:55,829 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:26:55,830 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:26:55,830 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:26:55,830 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:26:55,830 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:26:55,830 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:26:55,857 INFO L276 IsEmpty]: Start isEmpty. Operand 236 states. [2020-09-21 11:26:55,872 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 108 [2020-09-21 11:26:55,872 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:55,873 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:26:55,874 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:55,882 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:55,883 INFO L82 PathProgramCache]: Analyzing trace with hash -1789175463, now seen corresponding path program 1 times [2020-09-21 11:26:55,895 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:55,895 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1690520507] [2020-09-21 11:26:55,896 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:56,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:56,272 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:56,273 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:56,273 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:56,273 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:56,274 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-09-21 11:26:56,274 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:56,274 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 126 [2020-09-21 11:26:56,275 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:56,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:26:56,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:26:56,275 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 109 [2020-09-21 11:26:56,275 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:56,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:56,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:56,677 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:56,677 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:56,677 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:56,677 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:56,678 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:56,678 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:56,678 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:26:56,678 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:56,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:56,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:56,679 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:26:56,680 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:26:56,756 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:26:56,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1690520507] [2020-09-21 11:26:56,761 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:26:56,761 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:26:56,762 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1661579185] [2020-09-21 11:26:56,772 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:26:56,773 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:56,791 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:26:56,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:26:56,795 INFO L87 Difference]: Start difference. First operand 236 states. Second operand 5 states. [2020-09-21 11:26:59,266 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:26:59,267 INFO L93 Difference]: Finished difference Result 784 states and 1378 transitions. [2020-09-21 11:26:59,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-21 11:26:59,270 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 107 [2020-09-21 11:26:59,271 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:26:59,306 INFO L225 Difference]: With dead ends: 784 [2020-09-21 11:26:59,306 INFO L226 Difference]: Without dead ends: 480 [2020-09-21 11:26:59,320 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:26:59,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 480 states. [2020-09-21 11:26:59,415 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 480 to 473. [2020-09-21 11:26:59,417 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 473 states. [2020-09-21 11:26:59,420 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 473 states to 473 states and 640 transitions. [2020-09-21 11:26:59,422 INFO L78 Accepts]: Start accepts. Automaton has 473 states and 640 transitions. Word has length 107 [2020-09-21 11:26:59,423 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:26:59,423 INFO L479 AbstractCegarLoop]: Abstraction has 473 states and 640 transitions. [2020-09-21 11:26:59,424 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:26:59,424 INFO L276 IsEmpty]: Start isEmpty. Operand 473 states and 640 transitions. [2020-09-21 11:26:59,433 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 125 [2020-09-21 11:26:59,433 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:26:59,433 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:26:59,434 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:26:59,434 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:26:59,434 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:26:59,434 INFO L82 PathProgramCache]: Analyzing trace with hash 1627373773, now seen corresponding path program 1 times [2020-09-21 11:26:59,435 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:26:59,435 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2025655494] [2020-09-21 11:26:59,435 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:26:59,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:59,495 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-21 11:26:59,496 FATAL L256 erpolLogProxyWrapper]: Difference in depth: -14 [2020-09-21 11:26:59,496 FATAL L256 erpolLogProxyWrapper]: Difference in width: 14 [2020-09-21 11:26:59,496 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:59,497 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 137 [2020-09-21 11:26:59,497 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:59,497 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:26:59,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:59,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:59,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 20 [2020-09-21 11:26:59,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:26:59,498 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:59,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:26:59,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:59,673 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:59,673 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:59,673 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:59,674 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:59,674 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:26:59,674 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:59,674 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:26:59,675 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:26:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:59,675 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:26:59,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:59,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:26:59,698 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:59,702 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:59,703 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:59,703 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:59,703 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:59,703 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-21 11:26:59,704 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:59,704 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:26:59,704 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:59,704 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:26:59,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:26:59,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:26:59,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:59,722 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 17 [2020-09-21 11:26:59,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:26:59,737 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:26:59,737 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:26:59,737 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:26:59,738 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:26:59,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:26:59,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:26:59,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:26:59,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:26:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:26:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:26:59,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:26:59,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:26:59,789 INFO L134 CoverageAnalysis]: Checked inductivity of 19 backedges. 16 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:26:59,790 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2025655494] [2020-09-21 11:26:59,790 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:26:59,791 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-09-21 11:26:59,791 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [285440036] [2020-09-21 11:26:59,793 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:26:59,793 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:26:59,794 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:26:59,794 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:26:59,794 INFO L87 Difference]: Start difference. First operand 473 states and 640 transitions. Second operand 8 states. [2020-09-21 11:27:02,188 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:02,188 INFO L93 Difference]: Finished difference Result 1110 states and 1528 transitions. [2020-09-21 11:27:02,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-21 11:27:02,189 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 124 [2020-09-21 11:27:02,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:02,198 INFO L225 Difference]: With dead ends: 1110 [2020-09-21 11:27:02,199 INFO L226 Difference]: Without dead ends: 643 [2020-09-21 11:27:02,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=58, Invalid=124, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:27:02,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 643 states. [2020-09-21 11:27:02,237 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 643 to 629. [2020-09-21 11:27:02,238 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 629 states. [2020-09-21 11:27:02,241 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 629 states to 629 states and 832 transitions. [2020-09-21 11:27:02,241 INFO L78 Accepts]: Start accepts. Automaton has 629 states and 832 transitions. Word has length 124 [2020-09-21 11:27:02,242 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:02,242 INFO L479 AbstractCegarLoop]: Abstraction has 629 states and 832 transitions. [2020-09-21 11:27:02,242 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:27:02,242 INFO L276 IsEmpty]: Start isEmpty. Operand 629 states and 832 transitions. [2020-09-21 11:27:02,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 137 [2020-09-21 11:27:02,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:02,248 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:02,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:27:02,249 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:02,249 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:02,249 INFO L82 PathProgramCache]: Analyzing trace with hash -378866077, now seen corresponding path program 1 times [2020-09-21 11:27:02,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:02,250 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1746648493] [2020-09-21 11:27:02,250 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:02,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:02,329 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:02,329 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:02,330 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:02,330 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:02,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 149 [2020-09-21 11:27:02,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:02,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-09-21 11:27:02,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 30 [2020-09-21 11:27:02,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-21 11:27:02,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:02,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:02,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:02,432 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:02,433 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:02,433 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:02,433 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:02,433 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:02,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:02,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:02,434 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:02,434 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:02,435 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:02,435 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:02,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:02,460 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:02,460 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:02,460 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:02,460 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:02,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:27:02,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:02,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:02,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:02,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:02,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:02,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-21 11:27:02,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:02,472 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:27:02,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:02,483 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:02,484 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:02,484 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:02,484 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:02,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:27:02,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:02,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-21 11:27:02,485 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:02,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:02,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:02,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-21 11:27:02,486 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:02,520 INFO L134 CoverageAnalysis]: Checked inductivity of 29 backedges. 26 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-09-21 11:27:02,520 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1746648493] [2020-09-21 11:27:02,521 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:02,521 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:02,521 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [946394729] [2020-09-21 11:27:02,522 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:02,522 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:02,522 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:02,523 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:02,523 INFO L87 Difference]: Start difference. First operand 629 states and 832 transitions. Second operand 7 states. [2020-09-21 11:27:05,029 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:05,029 INFO L93 Difference]: Finished difference Result 2500 states and 3674 transitions. [2020-09-21 11:27:05,030 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-21 11:27:05,030 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 136 [2020-09-21 11:27:05,033 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:05,061 INFO L225 Difference]: With dead ends: 2500 [2020-09-21 11:27:05,062 INFO L226 Difference]: Without dead ends: 1877 [2020-09-21 11:27:05,065 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:27:05,068 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1877 states. [2020-09-21 11:27:05,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1877 to 1855. [2020-09-21 11:27:05,165 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1855 states. [2020-09-21 11:27:05,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1855 states to 1855 states and 2479 transitions. [2020-09-21 11:27:05,180 INFO L78 Accepts]: Start accepts. Automaton has 1855 states and 2479 transitions. Word has length 136 [2020-09-21 11:27:05,180 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:05,180 INFO L479 AbstractCegarLoop]: Abstraction has 1855 states and 2479 transitions. [2020-09-21 11:27:05,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:05,181 INFO L276 IsEmpty]: Start isEmpty. Operand 1855 states and 2479 transitions. [2020-09-21 11:27:05,194 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-21 11:27:05,195 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:05,195 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:05,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:27:05,197 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:05,197 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:05,197 INFO L82 PathProgramCache]: Analyzing trace with hash 1723292862, now seen corresponding path program 1 times [2020-09-21 11:27:05,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:05,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1548301809] [2020-09-21 11:27:05,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:05,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:05,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:05,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:05,276 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:05,276 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:05,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 171 [2020-09-21 11:27:05,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:05,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-21 11:27:05,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-09-21 11:27:05,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-09-21 11:27:05,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:05,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:05,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:05,363 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:05,364 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:05,364 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:05,364 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:05,364 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:05,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:05,365 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:05,365 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:05,365 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:05,366 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:05,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:05,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:05,398 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:05,398 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:05,398 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:05,399 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:05,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 23 [2020-09-21 11:27:05,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:05,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:05,399 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:05,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 15 [2020-09-21 11:27:05,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:05,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-09-21 11:27:05,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:05,424 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:05,424 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:05,424 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:05,425 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:05,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:27:05,425 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:05,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:27:05,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:05,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:05,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:05,426 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:27:05,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:05,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:27:05,485 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:05,486 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:05,486 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:05,487 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:05,487 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:05,487 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:27:05,488 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:05,488 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:05,488 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:05,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:05,489 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:27:05,490 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:05,490 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:05,540 INFO L134 CoverageAnalysis]: Checked inductivity of 70 backedges. 55 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-21 11:27:05,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1548301809] [2020-09-21 11:27:05,541 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:05,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:05,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1029480410] [2020-09-21 11:27:05,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:05,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:05,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:05,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:05,543 INFO L87 Difference]: Start difference. First operand 1855 states and 2479 transitions. Second operand 7 states. [2020-09-21 11:27:07,267 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:07,267 INFO L93 Difference]: Finished difference Result 5535 states and 7658 transitions. [2020-09-21 11:27:07,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:27:07,268 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 156 [2020-09-21 11:27:07,268 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:07,293 INFO L225 Difference]: With dead ends: 5535 [2020-09-21 11:27:07,293 INFO L226 Difference]: Without dead ends: 3690 [2020-09-21 11:27:07,302 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-09-21 11:27:07,307 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3690 states. [2020-09-21 11:27:07,408 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3690 to 3522. [2020-09-21 11:27:07,409 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3522 states. [2020-09-21 11:27:07,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3522 states to 3522 states and 4799 transitions. [2020-09-21 11:27:07,434 INFO L78 Accepts]: Start accepts. Automaton has 3522 states and 4799 transitions. Word has length 156 [2020-09-21 11:27:07,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:07,437 INFO L479 AbstractCegarLoop]: Abstraction has 3522 states and 4799 transitions. [2020-09-21 11:27:07,438 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:07,438 INFO L276 IsEmpty]: Start isEmpty. Operand 3522 states and 4799 transitions. [2020-09-21 11:27:07,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-21 11:27:07,457 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:07,457 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:07,457 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:27:07,458 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:07,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:07,459 INFO L82 PathProgramCache]: Analyzing trace with hash 953270651, now seen corresponding path program 1 times [2020-09-21 11:27:07,459 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:07,460 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [417545353] [2020-09-21 11:27:07,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:07,509 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:07,524 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:07,525 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:07,525 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:07,525 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:07,525 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-21 11:27:07,525 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:07,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-09-21 11:27:07,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:07,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:07,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:27:07,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:27:07,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:07,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:07,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:07,630 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:07,631 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:07,631 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:07,632 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:07,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:07,632 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:07,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:07,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:07,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:07,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:07,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:07,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:07,652 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:07,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:07,665 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:07,666 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:07,666 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:07,667 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:07,667 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-09-21 11:27:07,667 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:07,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:07,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:07,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:07,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 26 [2020-09-21 11:27:07,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:07,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:27:07,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:07,694 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:07,694 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:07,694 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:07,694 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:07,695 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-21 11:27:07,695 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:07,695 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-21 11:27:07,695 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:07,696 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-21 11:27:07,696 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:07,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 59 [2020-09-21 11:27:07,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:07,726 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:07,726 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:07,727 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:07,727 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:07,727 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-21 11:27:07,727 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:07,727 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:07,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:07,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:07,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-21 11:27:07,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:07,728 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:07,807 INFO L134 CoverageAnalysis]: Checked inductivity of 82 backedges. 67 proven. 7 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-09-21 11:27:07,808 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [417545353] [2020-09-21 11:27:07,808 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:07,808 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-09-21 11:27:07,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1177270166] [2020-09-21 11:27:07,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-21 11:27:07,810 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:07,810 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-21 11:27:07,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-09-21 11:27:07,811 INFO L87 Difference]: Start difference. First operand 3522 states and 4799 transitions. Second operand 7 states. [2020-09-21 11:27:09,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:09,226 INFO L93 Difference]: Finished difference Result 6876 states and 9207 transitions. [2020-09-21 11:27:09,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-21 11:27:09,227 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 166 [2020-09-21 11:27:09,227 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:09,247 INFO L225 Difference]: With dead ends: 6876 [2020-09-21 11:27:09,247 INFO L226 Difference]: Without dead ends: 3364 [2020-09-21 11:27:09,260 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-09-21 11:27:09,264 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3364 states. [2020-09-21 11:27:09,340 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3364 to 2602. [2020-09-21 11:27:09,340 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2602 states. [2020-09-21 11:27:09,347 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2602 states to 2602 states and 3106 transitions. [2020-09-21 11:27:09,347 INFO L78 Accepts]: Start accepts. Automaton has 2602 states and 3106 transitions. Word has length 166 [2020-09-21 11:27:09,348 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:09,348 INFO L479 AbstractCegarLoop]: Abstraction has 2602 states and 3106 transitions. [2020-09-21 11:27:09,348 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-21 11:27:09,348 INFO L276 IsEmpty]: Start isEmpty. Operand 2602 states and 3106 transitions. [2020-09-21 11:27:09,355 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-09-21 11:27:09,356 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:09,356 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:09,356 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:27:09,356 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:09,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:09,357 INFO L82 PathProgramCache]: Analyzing trace with hash -1125842089, now seen corresponding path program 1 times [2020-09-21 11:27:09,357 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:09,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1477744028] [2020-09-21 11:27:09,358 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:09,400 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:09,430 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:09,430 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:09,430 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:09,431 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:09,431 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-09-21 11:27:09,431 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:09,431 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-09-21 11:27:09,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:09,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-21 11:27:09,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:27:09,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-09-21 11:27:09,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:09,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:09,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:09,531 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:09,532 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:09,532 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:09,532 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:09,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:09,533 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:09,533 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:27:09,533 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:09,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:09,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:09,534 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:09,534 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:09,560 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:09,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:09,586 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:09,587 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:09,587 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:09,587 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:09,587 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 60 [2020-09-21 11:27:09,588 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:09,588 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:27:09,588 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:09,588 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:09,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-21 11:27:09,589 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 59 [2020-09-21 11:27:09,589 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:09,734 INFO L134 CoverageAnalysis]: Checked inductivity of 53 backedges. 53 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:27:09,734 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1477744028] [2020-09-21 11:27:09,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:09,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-21 11:27:09,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [792152041] [2020-09-21 11:27:09,736 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:27:09,736 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:09,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:27:09,737 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:27:09,737 INFO L87 Difference]: Start difference. First operand 2602 states and 3106 transitions. Second operand 8 states. [2020-09-21 11:27:10,725 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:10,726 INFO L93 Difference]: Finished difference Result 5084 states and 6308 transitions. [2020-09-21 11:27:10,726 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-09-21 11:27:10,726 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 165 [2020-09-21 11:27:10,727 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:10,740 INFO L225 Difference]: With dead ends: 5084 [2020-09-21 11:27:10,740 INFO L226 Difference]: Without dead ends: 2488 [2020-09-21 11:27:10,748 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-21 11:27:10,751 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2488 states. [2020-09-21 11:27:10,811 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2488 to 2428. [2020-09-21 11:27:10,812 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2428 states. [2020-09-21 11:27:10,816 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2428 states to 2428 states and 2819 transitions. [2020-09-21 11:27:10,817 INFO L78 Accepts]: Start accepts. Automaton has 2428 states and 2819 transitions. Word has length 165 [2020-09-21 11:27:10,817 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:10,817 INFO L479 AbstractCegarLoop]: Abstraction has 2428 states and 2819 transitions. [2020-09-21 11:27:10,817 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:27:10,818 INFO L276 IsEmpty]: Start isEmpty. Operand 2428 states and 2819 transitions. [2020-09-21 11:27:10,824 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-09-21 11:27:10,824 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:10,825 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-21 11:27:10,825 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-21 11:27:10,825 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:10,825 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:10,826 INFO L82 PathProgramCache]: Analyzing trace with hash 1362993137, now seen corresponding path program 1 times [2020-09-21 11:27:10,826 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:10,826 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009663536] [2020-09-21 11:27:10,826 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:10,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:10,881 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:10,882 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:10,882 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:10,882 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:10,882 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-21 11:27:10,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:10,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-21 11:27:10,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-09-21 11:27:10,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-09-21 11:27:10,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:10,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:10,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:10,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:10,958 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:10,958 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:10,959 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:10,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:10,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:10,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:10,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:10,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:10,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:10,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:10,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:10,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:10,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:10,989 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:10,989 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:10,989 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:10,989 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:10,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 11:27:10,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:10,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:10,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:10,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:10,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:10,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 29 [2020-09-21 11:27:10,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:11,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 11:27:11,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:11,017 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:11,017 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:11,017 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:11,018 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:11,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 48 [2020-09-21 11:27:11,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:11,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-21 11:27:11,018 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-09-21 11:27:11,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:27:11,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:11,095 INFO L134 CoverageAnalysis]: Checked inductivity of 106 backedges. 78 proven. 0 refuted. 0 times theorem prover too weak. 28 trivial. 0 not checked. [2020-09-21 11:27:11,096 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009663536] [2020-09-21 11:27:11,096 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:27:11,096 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-21 11:27:11,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [455009085] [2020-09-21 11:27:11,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:11,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:11,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:11,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:11,100 INFO L87 Difference]: Start difference. First operand 2428 states and 2819 transitions. Second operand 5 states. [2020-09-21 11:27:12,145 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:12,145 INFO L93 Difference]: Finished difference Result 5719 states and 6726 transitions. [2020-09-21 11:27:12,146 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:12,146 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 187 [2020-09-21 11:27:12,146 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:12,161 INFO L225 Difference]: With dead ends: 5719 [2020-09-21 11:27:12,161 INFO L226 Difference]: Without dead ends: 3441 [2020-09-21 11:27:12,168 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:27:12,172 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3441 states. [2020-09-21 11:27:12,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3441 to 2423. [2020-09-21 11:27:12,235 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2423 states. [2020-09-21 11:27:12,239 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2423 states to 2423 states and 2821 transitions. [2020-09-21 11:27:12,240 INFO L78 Accepts]: Start accepts. Automaton has 2423 states and 2821 transitions. Word has length 187 [2020-09-21 11:27:12,240 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:12,240 INFO L479 AbstractCegarLoop]: Abstraction has 2423 states and 2821 transitions. [2020-09-21 11:27:12,240 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:12,241 INFO L276 IsEmpty]: Start isEmpty. Operand 2423 states and 2821 transitions. [2020-09-21 11:27:12,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 214 [2020-09-21 11:27:12,248 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:27:12,249 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-21 11:27:12,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-21 11:27:12,249 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:27:12,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:27:12,250 INFO L82 PathProgramCache]: Analyzing trace with hash -629333695, now seen corresponding path program 1 times [2020-09-21 11:27:12,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:27:12,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2003330250] [2020-09-21 11:27:12,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:27:12,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:12,329 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:12,330 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:12,330 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:12,330 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:12,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 226 [2020-09-21 11:27:12,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:12,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-21 11:27:12,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:27:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 119 [2020-09-21 11:27:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-09-21 11:27:12,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:12,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:27:12,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:12,458 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:12,459 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:12,459 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:12,459 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:12,460 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:27:12,460 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:12,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:12,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:12,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:12,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:12,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:12,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:12,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-09-21 11:27:12,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:12,485 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:12,485 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:12,486 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:12,486 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:12,486 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-21 11:27:12,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:12,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:27:12,487 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:27:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:12,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:27:12,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:27:12,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 42 [2020-09-21 11:27:12,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:27:12,521 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:27:12,522 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:27:12,522 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:27:12,522 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:27:12,522 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 74 [2020-09-21 11:27:12,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:27:12,523 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:27:12,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:27:12,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:27:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:27:12,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 67 [2020-09-21 11:27:12,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:27:12,608 INFO L134 CoverageAnalysis]: Checked inductivity of 134 backedges. 101 proven. 2 refuted. 0 times theorem prover too weak. 31 trivial. 0 not checked. [2020-09-21 11:27:12,608 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2003330250] [2020-09-21 11:27:12,609 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-21 11:27:12,609 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-09-21 11:27:12,609 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1847519329] [2020-09-21 11:27:12,610 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-21 11:27:12,610 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:27:12,610 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-21 11:27:12,611 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:27:12,611 INFO L87 Difference]: Start difference. First operand 2423 states and 2821 transitions. Second operand 5 states. [2020-09-21 11:27:13,894 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:27:13,895 INFO L93 Difference]: Finished difference Result 4692 states and 5461 transitions. [2020-09-21 11:27:13,895 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:27:13,895 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 213 [2020-09-21 11:27:13,897 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:27:13,897 INFO L225 Difference]: With dead ends: 4692 [2020-09-21 11:27:13,897 INFO L226 Difference]: Without dead ends: 0 [2020-09-21 11:27:13,905 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-09-21 11:27:13,906 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-21 11:27:13,906 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-21 11:27:13,906 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-21 11:27:13,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-21 11:27:13,907 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 213 [2020-09-21 11:27:13,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:27:13,907 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-21 11:27:13,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-21 11:27:13,907 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-21 11:27:13,907 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-21 11:27:13,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-21 11:27:13,910 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-21 11:27:14,925 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 91 [2020-09-21 11:27:15,122 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 91 [2020-09-21 11:27:15,824 WARN L193 SmtUtils]: Spent 591.00 ms on a formula simplification. DAG size of input: 133 DAG size of output: 49 [2020-09-21 11:27:16,166 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 39 [2020-09-21 11:27:16,423 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification. DAG size of input: 83 DAG size of output: 39 [2020-09-21 11:27:16,428 INFO L268 CegarLoopResult]: For program point ULTIMATE.initFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:27:16,428 INFO L264 CegarLoopResult]: At program point ULTIMATE.initENTRY(line -1) the Hoare annotation is: (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a21~0 |old(~a21~0)|) (= ~c~0 |old(~c~0)|) (= ~a25~0 |old(~a25~0)|) (= ~z~0 |old(~z~0)|) (= ~f~0 |old(~f~0)|) (= ~a19~0 |old(~a19~0)|) (= ~a11~0 |old(~a11~0)|) (= ~w~0 |old(~w~0)|) (= ~a~0 |old(~a~0)|) (= ~u~0 |old(~u~0)|) (= ~e~0 |old(~e~0)|) (= ~x~0 |old(~x~0)|) (= ~d~0 |old(~d~0)|) (= ~y~0 |old(~y~0)|) (= ~v~0 |old(~v~0)|)) [2020-09-21 11:27:16,429 INFO L268 CegarLoopResult]: For program point ULTIMATE.initEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:27:16,429 INFO L268 CegarLoopResult]: For program point L564-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,429 INFO L268 CegarLoopResult]: For program point L531-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,429 INFO L268 CegarLoopResult]: For program point L498-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,430 INFO L268 CegarLoopResult]: For program point L465-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,430 INFO L268 CegarLoopResult]: For program point L432-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,430 INFO L268 CegarLoopResult]: For program point L234(lines 234 413) no Hoare annotation was computed. [2020-09-21 11:27:16,430 INFO L268 CegarLoopResult]: For program point L69(lines 69 413) no Hoare annotation was computed. [2020-09-21 11:27:16,430 INFO L268 CegarLoopResult]: For program point L565(line 565) no Hoare annotation was computed. [2020-09-21 11:27:16,431 INFO L268 CegarLoopResult]: For program point L532(line 532) no Hoare annotation was computed. [2020-09-21 11:27:16,431 INFO L268 CegarLoopResult]: For program point L499(line 499) no Hoare annotation was computed. [2020-09-21 11:27:16,431 INFO L268 CegarLoopResult]: For program point L466(line 466) no Hoare annotation was computed. [2020-09-21 11:27:16,431 INFO L268 CegarLoopResult]: For program point L433(line 433) no Hoare annotation was computed. [2020-09-21 11:27:16,431 INFO L268 CegarLoopResult]: For program point L202(lines 202 413) no Hoare annotation was computed. [2020-09-21 11:27:16,431 INFO L268 CegarLoopResult]: For program point L169(lines 169 413) no Hoare annotation was computed. [2020-09-21 11:27:16,431 INFO L268 CegarLoopResult]: For program point L368(lines 368 413) no Hoare annotation was computed. [2020-09-21 11:27:16,431 INFO L268 CegarLoopResult]: For program point L203(lines 203 210) no Hoare annotation was computed. [2020-09-21 11:27:16,431 INFO L268 CegarLoopResult]: For program point L203-2(lines 203 210) no Hoare annotation was computed. [2020-09-21 11:27:16,432 INFO L268 CegarLoopResult]: For program point L38(lines 38 413) no Hoare annotation was computed. [2020-09-21 11:27:16,432 INFO L268 CegarLoopResult]: For program point L567-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,432 INFO L268 CegarLoopResult]: For program point L534-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,432 INFO L268 CegarLoopResult]: For program point L501-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,432 INFO L268 CegarLoopResult]: For program point L468-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,432 INFO L268 CegarLoopResult]: For program point L402(lines 402 413) no Hoare annotation was computed. [2020-09-21 11:27:16,432 INFO L268 CegarLoopResult]: For program point L435-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,432 INFO L268 CegarLoopResult]: For program point L237(lines 237 413) no Hoare annotation was computed. [2020-09-21 11:27:16,432 INFO L268 CegarLoopResult]: For program point L568(line 568) no Hoare annotation was computed. [2020-09-21 11:27:16,432 INFO L268 CegarLoopResult]: For program point L535(line 535) no Hoare annotation was computed. [2020-09-21 11:27:16,433 INFO L268 CegarLoopResult]: For program point L502(line 502) no Hoare annotation was computed. [2020-09-21 11:27:16,433 INFO L268 CegarLoopResult]: For program point L469(line 469) no Hoare annotation was computed. [2020-09-21 11:27:16,433 INFO L268 CegarLoopResult]: For program point L436(line 436) no Hoare annotation was computed. [2020-09-21 11:27:16,433 INFO L268 CegarLoopResult]: For program point L337(lines 337 413) no Hoare annotation was computed. [2020-09-21 11:27:16,433 INFO L268 CegarLoopResult]: For program point L238(lines 238 246) no Hoare annotation was computed. [2020-09-21 11:27:16,433 INFO L268 CegarLoopResult]: For program point L238-2(lines 238 246) no Hoare annotation was computed. [2020-09-21 11:27:16,433 INFO L268 CegarLoopResult]: For program point L139(lines 139 413) no Hoare annotation was computed. [2020-09-21 11:27:16,433 INFO L268 CegarLoopResult]: For program point L106(lines 106 413) no Hoare annotation was computed. [2020-09-21 11:27:16,433 INFO L268 CegarLoopResult]: For program point L404(lines 404 413) no Hoare annotation was computed. [2020-09-21 11:27:16,434 INFO L268 CegarLoopResult]: For program point L338(lines 338 347) no Hoare annotation was computed. [2020-09-21 11:27:16,434 INFO L268 CegarLoopResult]: For program point L338-2(lines 338 347) no Hoare annotation was computed. [2020-09-21 11:27:16,434 INFO L268 CegarLoopResult]: For program point L74(lines 74 413) no Hoare annotation was computed. [2020-09-21 11:27:16,434 INFO L268 CegarLoopResult]: For program point L570-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,434 INFO L268 CegarLoopResult]: For program point L537-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,434 INFO L268 CegarLoopResult]: For program point L504-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,434 INFO L268 CegarLoopResult]: For program point L471-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,434 INFO L268 CegarLoopResult]: For program point L438-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,435 INFO L268 CegarLoopResult]: For program point calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION(line 475) no Hoare annotation was computed. [2020-09-21 11:27:16,435 INFO L268 CegarLoopResult]: For program point L75(lines 75 80) no Hoare annotation was computed. [2020-09-21 11:27:16,435 INFO L268 CegarLoopResult]: For program point L42(lines 42 413) no Hoare annotation was computed. [2020-09-21 11:27:16,435 INFO L268 CegarLoopResult]: For program point L75-2(lines 75 80) no Hoare annotation was computed. [2020-09-21 11:27:16,435 INFO L268 CegarLoopResult]: For program point L571(line 571) no Hoare annotation was computed. [2020-09-21 11:27:16,435 INFO L268 CegarLoopResult]: For program point L538(line 538) no Hoare annotation was computed. [2020-09-21 11:27:16,435 INFO L268 CegarLoopResult]: For program point L505(line 505) no Hoare annotation was computed. [2020-09-21 11:27:16,436 INFO L268 CegarLoopResult]: For program point L472(line 472) no Hoare annotation was computed. [2020-09-21 11:27:16,436 INFO L268 CegarLoopResult]: For program point L439(line 439) no Hoare annotation was computed. [2020-09-21 11:27:16,436 INFO L268 CegarLoopResult]: For program point L175(lines 175 413) no Hoare annotation was computed. [2020-09-21 11:27:16,436 INFO L268 CegarLoopResult]: For program point L407(lines 407 413) no Hoare annotation was computed. [2020-09-21 11:27:16,436 INFO L268 CegarLoopResult]: For program point L143(lines 143 413) no Hoare annotation was computed. [2020-09-21 11:27:16,436 INFO L268 CegarLoopResult]: For program point L573-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,436 INFO L268 CegarLoopResult]: For program point L540-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,436 INFO L268 CegarLoopResult]: For program point L507-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,437 INFO L268 CegarLoopResult]: For program point L474-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,437 INFO L268 CegarLoopResult]: For program point L441-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,437 INFO L268 CegarLoopResult]: For program point L375(lines 375 413) no Hoare annotation was computed. [2020-09-21 11:27:16,437 INFO L268 CegarLoopResult]: For program point L309(lines 309 413) no Hoare annotation was computed. [2020-09-21 11:27:16,437 INFO L268 CegarLoopResult]: For program point L276(lines 276 413) no Hoare annotation was computed. [2020-09-21 11:27:16,437 INFO L268 CegarLoopResult]: For program point L574(line 574) no Hoare annotation was computed. [2020-09-21 11:27:16,437 INFO L268 CegarLoopResult]: For program point L541(line 541) no Hoare annotation was computed. [2020-09-21 11:27:16,437 INFO L268 CegarLoopResult]: For program point L508(line 508) no Hoare annotation was computed. [2020-09-21 11:27:16,437 INFO L268 CegarLoopResult]: For program point L475(line 475) no Hoare annotation was computed. [2020-09-21 11:27:16,438 INFO L268 CegarLoopResult]: For program point L442(line 442) no Hoare annotation was computed. [2020-09-21 11:27:16,438 INFO L268 CegarLoopResult]: For program point L409(lines 409 413) no Hoare annotation was computed. [2020-09-21 11:27:16,438 INFO L268 CegarLoopResult]: For program point L212(lines 212 413) no Hoare annotation was computed. [2020-09-21 11:27:16,438 INFO L268 CegarLoopResult]: For program point L179(lines 179 413) no Hoare annotation was computed. [2020-09-21 11:27:16,438 INFO L268 CegarLoopResult]: For program point L113(lines 113 413) no Hoare annotation was computed. [2020-09-21 11:27:16,438 INFO L268 CegarLoopResult]: For program point L47(lines 47 413) no Hoare annotation was computed. [2020-09-21 11:27:16,438 INFO L268 CegarLoopResult]: For program point L576-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,438 INFO L268 CegarLoopResult]: For program point L543-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,439 INFO L268 CegarLoopResult]: For program point L510-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,439 INFO L268 CegarLoopResult]: For program point L477-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,439 INFO L268 CegarLoopResult]: For program point L444-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,439 INFO L268 CegarLoopResult]: For program point L378(lines 378 413) no Hoare annotation was computed. [2020-09-21 11:27:16,439 INFO L268 CegarLoopResult]: For program point L577(line 577) no Hoare annotation was computed. [2020-09-21 11:27:16,439 INFO L268 CegarLoopResult]: For program point L544(line 544) no Hoare annotation was computed. [2020-09-21 11:27:16,439 INFO L268 CegarLoopResult]: For program point L511(line 511) no Hoare annotation was computed. [2020-09-21 11:27:16,439 INFO L268 CegarLoopResult]: For program point L478(line 478) no Hoare annotation was computed. [2020-09-21 11:27:16,440 INFO L268 CegarLoopResult]: For program point L445(line 445) no Hoare annotation was computed. [2020-09-21 11:27:16,440 INFO L268 CegarLoopResult]: For program point L280(lines 280 413) no Hoare annotation was computed. [2020-09-21 11:27:16,440 INFO L268 CegarLoopResult]: For program point L148(lines 148 413) no Hoare annotation was computed. [2020-09-21 11:27:16,440 INFO L268 CegarLoopResult]: For program point L82(lines 82 413) no Hoare annotation was computed. [2020-09-21 11:27:16,440 INFO L268 CegarLoopResult]: For program point L380(lines 380 413) no Hoare annotation was computed. [2020-09-21 11:27:16,440 INFO L268 CegarLoopResult]: For program point L314(lines 314 413) no Hoare annotation was computed. [2020-09-21 11:27:16,440 INFO L268 CegarLoopResult]: For program point L248(lines 248 413) no Hoare annotation was computed. [2020-09-21 11:27:16,441 INFO L268 CegarLoopResult]: For program point L215(lines 215 413) no Hoare annotation was computed. [2020-09-21 11:27:16,441 INFO L268 CegarLoopResult]: For program point L83(lines 83 89) no Hoare annotation was computed. [2020-09-21 11:27:16,441 INFO L268 CegarLoopResult]: For program point L50(lines 50 413) no Hoare annotation was computed. [2020-09-21 11:27:16,441 INFO L268 CegarLoopResult]: For program point L83-2(lines 83 89) no Hoare annotation was computed. [2020-09-21 11:27:16,441 INFO L268 CegarLoopResult]: For program point L579-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,441 INFO L268 CegarLoopResult]: For program point L546-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,441 INFO L268 CegarLoopResult]: For program point L513-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,441 INFO L268 CegarLoopResult]: For program point L480-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,442 INFO L268 CegarLoopResult]: For program point L414(lines 414 416) no Hoare annotation was computed. [2020-09-21 11:27:16,442 INFO L268 CegarLoopResult]: For program point L447-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,442 INFO L268 CegarLoopResult]: For program point L381(lines 381 387) no Hoare annotation was computed. [2020-09-21 11:27:16,442 INFO L268 CegarLoopResult]: For program point L414-2(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,442 INFO L268 CegarLoopResult]: For program point L315(lines 315 326) no Hoare annotation was computed. [2020-09-21 11:27:16,442 INFO L268 CegarLoopResult]: For program point L381-2(lines 381 387) no Hoare annotation was computed. [2020-09-21 11:27:16,442 INFO L268 CegarLoopResult]: For program point L315-2(lines 315 326) no Hoare annotation was computed. [2020-09-21 11:27:16,442 INFO L268 CegarLoopResult]: For program point calculate_outputFINAL(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,443 INFO L268 CegarLoopResult]: For program point calculate_outputEXIT(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,443 INFO L268 CegarLoopResult]: For program point L580(line 580) no Hoare annotation was computed. [2020-09-21 11:27:16,443 INFO L268 CegarLoopResult]: For program point L547(line 547) no Hoare annotation was computed. [2020-09-21 11:27:16,443 INFO L268 CegarLoopResult]: For program point L514(line 514) no Hoare annotation was computed. [2020-09-21 11:27:16,443 INFO L268 CegarLoopResult]: For program point L481(line 481) no Hoare annotation was computed. [2020-09-21 11:27:16,443 INFO L268 CegarLoopResult]: For program point L448(line 448) no Hoare annotation was computed. [2020-09-21 11:27:16,443 INFO L268 CegarLoopResult]: For program point L415(line 415) no Hoare annotation was computed. [2020-09-21 11:27:16,443 INFO L268 CegarLoopResult]: For program point L349(lines 349 413) no Hoare annotation was computed. [2020-09-21 11:27:16,444 INFO L268 CegarLoopResult]: For program point L283(lines 283 413) no Hoare annotation was computed. [2020-09-21 11:27:16,444 INFO L268 CegarLoopResult]: For program point L218(lines 218 413) no Hoare annotation was computed. [2020-09-21 11:27:16,444 INFO L268 CegarLoopResult]: For program point L185(lines 185 413) no Hoare annotation was computed. [2020-09-21 11:27:16,444 INFO L268 CegarLoopResult]: For program point L119(lines 119 413) no Hoare annotation was computed. [2020-09-21 11:27:16,444 INFO L268 CegarLoopResult]: For program point L582-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,444 INFO L268 CegarLoopResult]: For program point L549-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,444 INFO L268 CegarLoopResult]: For program point L516-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,444 INFO L268 CegarLoopResult]: For program point L483-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,445 INFO L268 CegarLoopResult]: For program point L450-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,445 INFO L268 CegarLoopResult]: For program point L417-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,445 INFO L268 CegarLoopResult]: For program point L54(lines 54 413) no Hoare annotation was computed. [2020-09-21 11:27:16,445 INFO L268 CegarLoopResult]: For program point L583(line 583) no Hoare annotation was computed. [2020-09-21 11:27:16,445 INFO L268 CegarLoopResult]: For program point L550(line 550) no Hoare annotation was computed. [2020-09-21 11:27:16,445 INFO L268 CegarLoopResult]: For program point L517(line 517) no Hoare annotation was computed. [2020-09-21 11:27:16,445 INFO L268 CegarLoopResult]: For program point L484(line 484) no Hoare annotation was computed. [2020-09-21 11:27:16,445 INFO L268 CegarLoopResult]: For program point L451(line 451) no Hoare annotation was computed. [2020-09-21 11:27:16,445 INFO L268 CegarLoopResult]: For program point L418(line 418) no Hoare annotation was computed. [2020-09-21 11:27:16,445 INFO L268 CegarLoopResult]: For program point L286(lines 286 413) no Hoare annotation was computed. [2020-09-21 11:27:16,445 INFO L268 CegarLoopResult]: For program point L253(lines 253 413) no Hoare annotation was computed. [2020-09-21 11:27:16,446 INFO L268 CegarLoopResult]: For program point L187(lines 187 413) no Hoare annotation was computed. [2020-09-21 11:27:16,446 INFO L268 CegarLoopResult]: For program point L154(lines 154 413) no Hoare annotation was computed. [2020-09-21 11:27:16,446 INFO L268 CegarLoopResult]: For program point L585-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,446 INFO L268 CegarLoopResult]: For program point L552-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,446 INFO L268 CegarLoopResult]: For program point L519-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,446 INFO L268 CegarLoopResult]: For program point L486-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,446 INFO L268 CegarLoopResult]: For program point L453-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,446 INFO L268 CegarLoopResult]: For program point L420-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,446 INFO L268 CegarLoopResult]: For program point L354(lines 354 413) no Hoare annotation was computed. [2020-09-21 11:27:16,446 INFO L268 CegarLoopResult]: For program point L189(lines 189 413) no Hoare annotation was computed. [2020-09-21 11:27:16,446 INFO L268 CegarLoopResult]: For program point L123(lines 123 413) no Hoare annotation was computed. [2020-09-21 11:27:16,446 INFO L268 CegarLoopResult]: For program point L586(line 586) no Hoare annotation was computed. [2020-09-21 11:27:16,446 INFO L268 CegarLoopResult]: For program point L553(line 553) no Hoare annotation was computed. [2020-09-21 11:27:16,447 INFO L268 CegarLoopResult]: For program point L520(line 520) no Hoare annotation was computed. [2020-09-21 11:27:16,447 INFO L268 CegarLoopResult]: For program point L487(line 487) no Hoare annotation was computed. [2020-09-21 11:27:16,447 INFO L268 CegarLoopResult]: For program point L454(line 454) no Hoare annotation was computed. [2020-09-21 11:27:16,447 INFO L268 CegarLoopResult]: For program point L421(line 421) no Hoare annotation was computed. [2020-09-21 11:27:16,447 INFO L268 CegarLoopResult]: For program point L223(lines 223 413) no Hoare annotation was computed. [2020-09-21 11:27:16,447 INFO L268 CegarLoopResult]: For program point L91(lines 91 413) no Hoare annotation was computed. [2020-09-21 11:27:16,447 INFO L268 CegarLoopResult]: For program point L389(lines 389 413) no Hoare annotation was computed. [2020-09-21 11:27:16,447 INFO L268 CegarLoopResult]: For program point L191(lines 191 413) no Hoare annotation was computed. [2020-09-21 11:27:16,447 INFO L268 CegarLoopResult]: For program point L59(lines 59 413) no Hoare annotation was computed. [2020-09-21 11:27:16,447 INFO L268 CegarLoopResult]: For program point L588-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,447 INFO L268 CegarLoopResult]: For program point L555-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,447 INFO L268 CegarLoopResult]: For program point L522-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,448 INFO L264 CegarLoopResult]: At program point calculate_outputENTRY(lines 29 598) the Hoare annotation is: (let ((.cse4 (= ~a28~0 |old(~a28~0)|)) (.cse5 (= ~a17~0 |old(~a17~0)|)) (.cse6 (= ~a11~0 |old(~a11~0)|)) (.cse7 (= ~a19~0 |old(~a19~0)|))) (let ((.cse1 (and .cse4 .cse5 .cse6 (= ~a25~0 |old(~a25~0)|) .cse7)) (.cse3 (= |old(~a19~0)| 1)) (.cse2 (not (= 0 |old(~a25~0)|))) (.cse0 (not (<= |old(~a17~0)| 8)))) (and (or .cse0 .cse1 .cse2 (= |old(~a11~0)| 1)) (or .cse0 .cse3 (not (<= |old(~a28~0)| 7)) .cse1) (or .cse0 .cse1 .cse2 (not (<= 10 |old(~a28~0)|))) (or .cse0 (not .cse3) .cse2 (and .cse4 .cse5 .cse6 (= ~a19~0 1) (= ~a25~0 0))) (or (not (= |old(~a25~0)| 1)) .cse0 (and .cse4 .cse5 .cse6 (= ~a25~0 1) .cse7))))) [2020-09-21 11:27:16,448 INFO L268 CegarLoopResult]: For program point L489-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,448 INFO L268 CegarLoopResult]: For program point L456-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,448 INFO L268 CegarLoopResult]: For program point L423-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,448 INFO L268 CegarLoopResult]: For program point L291(lines 291 413) no Hoare annotation was computed. [2020-09-21 11:27:16,449 INFO L268 CegarLoopResult]: For program point L225(lines 225 413) no Hoare annotation was computed. [2020-09-21 11:27:16,449 INFO L268 CegarLoopResult]: For program point L159(lines 159 413) no Hoare annotation was computed. [2020-09-21 11:27:16,449 INFO L268 CegarLoopResult]: For program point L589(line 589) no Hoare annotation was computed. [2020-09-21 11:27:16,449 INFO L268 CegarLoopResult]: For program point L556(line 556) no Hoare annotation was computed. [2020-09-21 11:27:16,449 INFO L268 CegarLoopResult]: For program point L523(line 523) no Hoare annotation was computed. [2020-09-21 11:27:16,449 INFO L268 CegarLoopResult]: For program point L490(line 490) no Hoare annotation was computed. [2020-09-21 11:27:16,449 INFO L268 CegarLoopResult]: For program point L457(line 457) no Hoare annotation was computed. [2020-09-21 11:27:16,449 INFO L268 CegarLoopResult]: For program point L424(line 424) no Hoare annotation was computed. [2020-09-21 11:27:16,450 INFO L268 CegarLoopResult]: For program point L259(lines 259 413) no Hoare annotation was computed. [2020-09-21 11:27:16,450 INFO L268 CegarLoopResult]: For program point L293(lines 293 413) no Hoare annotation was computed. [2020-09-21 11:27:16,450 INFO L268 CegarLoopResult]: For program point L194(lines 194 413) no Hoare annotation was computed. [2020-09-21 11:27:16,450 INFO L268 CegarLoopResult]: For program point L95(lines 95 413) no Hoare annotation was computed. [2020-09-21 11:27:16,450 INFO L268 CegarLoopResult]: For program point L591-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,450 INFO L268 CegarLoopResult]: For program point L558-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,450 INFO L268 CegarLoopResult]: For program point L525-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,451 INFO L268 CegarLoopResult]: For program point L492-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,451 INFO L268 CegarLoopResult]: For program point L459-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,451 INFO L268 CegarLoopResult]: For program point L426-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,451 INFO L268 CegarLoopResult]: For program point L261(lines 261 413) no Hoare annotation was computed. [2020-09-21 11:27:16,451 INFO L268 CegarLoopResult]: For program point L30(lines 30 413) no Hoare annotation was computed. [2020-09-21 11:27:16,451 INFO L268 CegarLoopResult]: For program point L592(line 592) no Hoare annotation was computed. [2020-09-21 11:27:16,451 INFO L268 CegarLoopResult]: For program point L559(line 559) no Hoare annotation was computed. [2020-09-21 11:27:16,451 INFO L268 CegarLoopResult]: For program point L526(line 526) no Hoare annotation was computed. [2020-09-21 11:27:16,452 INFO L268 CegarLoopResult]: For program point L493(line 493) no Hoare annotation was computed. [2020-09-21 11:27:16,452 INFO L268 CegarLoopResult]: For program point L460(line 460) no Hoare annotation was computed. [2020-09-21 11:27:16,452 INFO L268 CegarLoopResult]: For program point L427(line 427) no Hoare annotation was computed. [2020-09-21 11:27:16,452 INFO L268 CegarLoopResult]: For program point L394(lines 394 413) no Hoare annotation was computed. [2020-09-21 11:27:16,452 INFO L268 CegarLoopResult]: For program point L361(lines 361 413) no Hoare annotation was computed. [2020-09-21 11:27:16,452 INFO L268 CegarLoopResult]: For program point L328(lines 328 413) no Hoare annotation was computed. [2020-09-21 11:27:16,452 INFO L268 CegarLoopResult]: For program point L262(lines 262 274) no Hoare annotation was computed. [2020-09-21 11:27:16,452 INFO L268 CegarLoopResult]: For program point L262-2(lines 262 274) no Hoare annotation was computed. [2020-09-21 11:27:16,453 INFO L268 CegarLoopResult]: For program point L130(lines 130 413) no Hoare annotation was computed. [2020-09-21 11:27:16,453 INFO L268 CegarLoopResult]: For program point L65(lines 65 413) no Hoare annotation was computed. [2020-09-21 11:27:16,453 INFO L268 CegarLoopResult]: For program point L594-1(lines 594 596) no Hoare annotation was computed. [2020-09-21 11:27:16,453 INFO L268 CegarLoopResult]: For program point L561-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,453 INFO L268 CegarLoopResult]: For program point L528-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,453 INFO L268 CegarLoopResult]: For program point L495-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,453 INFO L268 CegarLoopResult]: For program point L462-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,453 INFO L268 CegarLoopResult]: For program point L429-1(lines 29 598) no Hoare annotation was computed. [2020-09-21 11:27:16,454 INFO L268 CegarLoopResult]: For program point L297(lines 297 413) no Hoare annotation was computed. [2020-09-21 11:27:16,454 INFO L268 CegarLoopResult]: For program point L198(lines 198 413) no Hoare annotation was computed. [2020-09-21 11:27:16,454 INFO L268 CegarLoopResult]: For program point L165(lines 165 413) no Hoare annotation was computed. [2020-09-21 11:27:16,454 INFO L268 CegarLoopResult]: For program point L99(lines 99 413) no Hoare annotation was computed. [2020-09-21 11:27:16,454 INFO L268 CegarLoopResult]: For program point L595(line 595) no Hoare annotation was computed. [2020-09-21 11:27:16,454 INFO L268 CegarLoopResult]: For program point L562(line 562) no Hoare annotation was computed. [2020-09-21 11:27:16,454 INFO L268 CegarLoopResult]: For program point L529(line 529) no Hoare annotation was computed. [2020-09-21 11:27:16,454 INFO L268 CegarLoopResult]: For program point L496(line 496) no Hoare annotation was computed. [2020-09-21 11:27:16,454 INFO L268 CegarLoopResult]: For program point L463(line 463) no Hoare annotation was computed. [2020-09-21 11:27:16,455 INFO L268 CegarLoopResult]: For program point L430(line 430) no Hoare annotation was computed. [2020-09-21 11:27:16,455 INFO L268 CegarLoopResult]: For program point L331(lines 331 413) no Hoare annotation was computed. [2020-09-21 11:27:16,455 INFO L268 CegarLoopResult]: For program point L298(lines 298 307) no Hoare annotation was computed. [2020-09-21 11:27:16,455 INFO L268 CegarLoopResult]: For program point L232(lines 232 413) no Hoare annotation was computed. [2020-09-21 11:27:16,455 INFO L268 CegarLoopResult]: For program point L298-2(lines 298 307) no Hoare annotation was computed. [2020-09-21 11:27:16,455 INFO L268 CegarLoopResult]: For program point L398(lines 398 413) no Hoare annotation was computed. [2020-09-21 11:27:16,455 INFO L268 CegarLoopResult]: For program point L332(lines 332 335) no Hoare annotation was computed. [2020-09-21 11:27:16,455 INFO L268 CegarLoopResult]: For program point L332-2(lines 332 335) no Hoare annotation was computed. [2020-09-21 11:27:16,455 INFO L268 CegarLoopResult]: For program point L134(lines 134 413) no Hoare annotation was computed. [2020-09-21 11:27:16,455 INFO L268 CegarLoopResult]: For program point L35(lines 35 413) no Hoare annotation was computed. [2020-09-21 11:27:16,456 INFO L268 CegarLoopResult]: For program point ULTIMATE.startEXIT(line -1) no Hoare annotation was computed. [2020-09-21 11:27:16,456 INFO L264 CegarLoopResult]: At program point L-1(line -1) the Hoare annotation is: (and (= ~a19~0 1) (= ~a25~0 0) (not (= ~a11~0 1)) (<= ~a28~0 7) (<= ~a17~0 8)) [2020-09-21 11:27:16,456 INFO L271 CegarLoopResult]: At program point ULTIMATE.startENTRY(line -1) the Hoare annotation is: true [2020-09-21 11:27:16,456 INFO L268 CegarLoopResult]: For program point ULTIMATE.startFINAL(line -1) no Hoare annotation was computed. [2020-09-21 11:27:16,456 INFO L264 CegarLoopResult]: At program point mainENTRY(lines 600 617) the Hoare annotation is: (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (not (= |old(~a19~0)| 1)) (and (= ~a28~0 |old(~a28~0)|) (= ~a17~0 |old(~a17~0)|) (= ~a11~0 |old(~a11~0)|) (= ~a25~0 |old(~a25~0)|) (= ~a19~0 |old(~a19~0)|)) (not (= 0 |old(~a25~0)|)) (= |old(~a11~0)| 1)) [2020-09-21 11:27:16,456 INFO L264 CegarLoopResult]: At program point L606-2(lines 606 616) the Hoare annotation is: (let ((.cse2 (= ~a19~0 1)) (.cse0 (= ~a25~0 0)) (.cse1 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (and .cse0 (not (= ~a11~0 1)) .cse1) (and (not .cse2) .cse1 (<= ~a28~0 7)) (not (= |old(~a19~0)| 1)) (and .cse0 (<= 10 ~a28~0) .cse1) (and .cse2 .cse0 .cse1) (not (= 0 |old(~a25~0)|)) (= |old(~a11~0)| 1) (and (= ~a25~0 1) .cse1))) [2020-09-21 11:27:16,457 INFO L268 CegarLoopResult]: For program point L606-3(lines 600 617) no Hoare annotation was computed. [2020-09-21 11:27:16,457 INFO L268 CegarLoopResult]: For program point mainEXIT(lines 600 617) no Hoare annotation was computed. [2020-09-21 11:27:16,457 INFO L264 CegarLoopResult]: At program point L614(line 614) the Hoare annotation is: (let ((.cse2 (= ~a19~0 1)) (.cse0 (= ~a25~0 0)) (.cse1 (<= ~a17~0 8))) (or (not (<= |old(~a28~0)| 7)) (not (<= |old(~a17~0)| 8)) (and .cse0 (not (= ~a11~0 1)) .cse1) (and (not .cse2) .cse1 (<= ~a28~0 7)) (not (= |old(~a19~0)| 1)) (and .cse0 (<= 10 ~a28~0) .cse1) (and .cse2 .cse0 .cse1) (not (= 0 |old(~a25~0)|)) (= |old(~a11~0)| 1) (and (= ~a25~0 1) .cse1))) [2020-09-21 11:27:16,457 INFO L268 CegarLoopResult]: For program point L614-1(line 614) no Hoare annotation was computed. [2020-09-21 11:27:16,457 INFO L268 CegarLoopResult]: For program point L611(line 611) no Hoare annotation was computed. [2020-09-21 11:27:16,484 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:27:16 BoogieIcfgContainer [2020-09-21 11:27:16,484 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:27:16,486 INFO L168 Benchmark]: Toolchain (without parser) took 23108.82 ms. Allocated memory was 139.5 MB in the beginning and 556.8 MB in the end (delta: 417.3 MB). Free memory was 101.5 MB in the beginning and 450.7 MB in the end (delta: -349.2 MB). Peak memory consumption was 386.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:16,487 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-21 11:27:16,488 INFO L168 Benchmark]: CACSL2BoogieTranslator took 797.44 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.8 MB in the beginning and 171.2 MB in the end (delta: -70.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:16,489 INFO L168 Benchmark]: Boogie Preprocessor took 182.94 ms. Allocated memory is still 204.5 MB. Free memory was 171.2 MB in the beginning and 166.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:16,490 INFO L168 Benchmark]: RCFGBuilder took 1354.11 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 166.3 MB in the beginning and 181.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:16,491 INFO L168 Benchmark]: TraceAbstraction took 20763.12 ms. Allocated memory was 237.5 MB in the beginning and 556.8 MB in the end (delta: 319.3 MB). Free memory was 181.7 MB in the beginning and 450.7 MB in the end (delta: -269.0 MB). Peak memory consumption was 368.5 MB. Max. memory is 7.1 GB. [2020-09-21 11:27:16,495 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 139.5 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 797.44 ms. Allocated memory was 139.5 MB in the beginning and 204.5 MB in the end (delta: 65.0 MB). Free memory was 100.8 MB in the beginning and 171.2 MB in the end (delta: -70.4 MB). Peak memory consumption was 34.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 182.94 ms. Allocated memory is still 204.5 MB. Free memory was 171.2 MB in the beginning and 166.3 MB in the end (delta: 4.9 MB). Peak memory consumption was 4.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1354.11 ms. Allocated memory was 204.5 MB in the beginning and 237.5 MB in the end (delta: 33.0 MB). Free memory was 166.3 MB in the beginning and 181.7 MB in the end (delta: -15.4 MB). Peak memory consumption was 83.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20763.12 ms. Allocated memory was 237.5 MB in the beginning and 556.8 MB in the end (delta: 319.3 MB). Free memory was 181.7 MB in the beginning and 450.7 MB in the end (delta: -269.0 MB). Peak memory consumption was 368.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 475]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - InvariantResult [Line: 606]: Loop Invariant Derived loop invariant: ((((((((!(\old(a28) <= 7) || !(\old(a17) <= 8)) || ((a25 == 0 && !(a11 == 1)) && a17 <= 8)) || ((!(a19 == 1) && a17 <= 8) && a28 <= 7)) || !(\old(a19) == 1)) || ((a25 == 0 && 10 <= a28) && a17 <= 8)) || ((a19 == 1 && a25 == 0) && a17 <= 8)) || !(0 == \old(a25))) || \old(a11) == 1) || (a25 == 1 && a17 <= 8) - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 236 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 18.0s, OverallIterations: 8, TraceHistogramMax: 4, AutomataDifference: 14.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 2.5s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 313 SDtfs, 4660 SDslu, 414 SDs, 0 SdLazy, 7155 SolverSat, 1528 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 67 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 1.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=3522occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.5s AutomataMinimizationTime, 8 MinimizatonAttempts, 2051 StatesRemovedByMinimization, 7 NontrivialMinimizations, HoareAnnotationStatistics: 0.0s HoareAnnotationTime, 7 LocationsWithAnnotation, 133 PreInvPairs, 165 NumberOfFragments, 384 HoareAnnotationTreeSize, 133 FomulaSimplifications, 13862 FormulaSimplificationTreeSizeReduction, 1.2s HoareSimplificationTime, 7 FomulaSimplificationsInter, 2259 FormulaSimplificationTreeSizeReductionInter, 1.2s HoareSimplificationTimeInter, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.2s InterpolantComputationTime, 1254 NumberOfCodeBlocks, 1254 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 1246 ConstructedInterpolants, 0 QuantifiedInterpolants, 437072 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 3 PerfectInterpolantSequences, 473/493 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...