/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SequenceOfStatements --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true --traceabstraction.additional.smt.options unknown-allowed=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/eca-rers2012/Problem03_label49.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:54:51,862 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:54:51,865 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:54:51,893 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:54:51,895 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:54:51,896 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:54:51,899 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:54:51,903 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:54:51,911 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:54:51,911 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:54:51,913 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:54:51,914 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:54:51,914 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:54:51,917 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:54:51,920 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:54:51,922 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:54:51,923 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:54:51,924 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:54:51,928 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:54:51,930 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:54:51,934 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:54:51,936 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:54:51,938 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:54:51,939 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:54:51,951 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:54:51,951 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:54:51,952 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:54:51,953 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:54:51,953 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:54:51,956 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:54:51,956 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:54:51,957 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:54:51,958 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:54:51,959 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:54:51,960 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:54:51,960 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:54:51,961 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:54:51,961 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:54:51,961 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:54:51,962 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:54:51,963 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:54:51,964 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-10-14 00:54:52,011 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:54:52,011 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:54:52,012 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:54:52,013 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:54:52,013 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:54:52,013 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:54:52,013 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:54:52,013 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:54:52,014 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:54:52,014 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:54:52,014 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:54:52,014 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:54:52,014 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:54:52,015 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:54:52,015 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:54:52,015 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:54:52,015 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:54:52,015 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:54:52,016 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:54:52,016 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:54:52,016 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:54:52,016 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:54:52,016 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:54:52,017 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:54:52,017 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:54:52,017 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:54:52,017 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:54:52,017 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:54:52,017 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:54:52,018 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SequenceOfStatements Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true;unknown-allowed=true; [2020-10-14 00:54:52,334 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:54:52,346 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:54:52,350 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:54:52,352 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:54:52,352 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:54:52,353 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label49.c [2020-10-14 00:54:52,415 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbc1133cf/1b986713fe574f338429b9bd5f755945/FLAG473b74990 [2020-10-14 00:54:53,108 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:54:53,109 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem03_label49.c [2020-10-14 00:54:53,131 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbc1133cf/1b986713fe574f338429b9bd5f755945/FLAG473b74990 [2020-10-14 00:54:53,297 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fbc1133cf/1b986713fe574f338429b9bd5f755945 [2020-10-14 00:54:53,305 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:54:53,307 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:54:53,308 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:54:53,308 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:54:53,312 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:54:53,313 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:54:53" (1/1) ... [2020-10-14 00:54:53,316 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bd36ef8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:54:53, skipping insertion in model container [2020-10-14 00:54:53,316 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:54:53" (1/1) ... [2020-10-14 00:54:53,324 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:54:53,399 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:54:54,209 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:54:54,219 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:54:54,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:54:54,516 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:54:54,517 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:54:54 WrapperNode [2020-10-14 00:54:54,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:54:54,518 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:54:54,519 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:54:54,519 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:54:54,533 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:54:54" (1/1) ... [2020-10-14 00:54:54,535 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:54:54" (1/1) ... [2020-10-14 00:54:54,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:54:54" (1/1) ... [2020-10-14 00:54:54,572 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:54:54" (1/1) ... [2020-10-14 00:54:54,658 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:54:54" (1/1) ... [2020-10-14 00:54:54,674 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:54:54" (1/1) ... [2020-10-14 00:54:54,685 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:54:54" (1/1) ... [2020-10-14 00:54:54,703 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:54:54,704 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:54:54,704 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:54:54,704 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:54:54,707 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:54:54" (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 [2020-10-14 00:54:54,808 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:54:54,809 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:54:54,809 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 00:54:54,809 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:54:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 00:54:54,809 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:54:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:54:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 00:54:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:54:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:54:54,810 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:54:56,648 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:54:56,648 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 00:54:56,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:54:56 BoogieIcfgContainer [2020-10-14 00:54:56,655 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:54:56,657 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:54:56,657 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:54:56,660 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:54:56,660 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:54:53" (1/3) ... [2020-10-14 00:54:56,661 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a8f8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:54:56, skipping insertion in model container [2020-10-14 00:54:56,661 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:54:54" (2/3) ... [2020-10-14 00:54:56,662 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59a8f8c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:54:56, skipping insertion in model container [2020-10-14 00:54:56,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:54:56" (3/3) ... [2020-10-14 00:54:56,664 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label49.c [2020-10-14 00:54:56,674 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:54:56,682 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:54:56,696 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:54:56,721 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:54:56,722 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:54:56,722 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:54:56,722 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:54:56,722 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:54:56,722 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:54:56,723 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:54:56,723 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:54:56,749 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-10-14 00:54:56,765 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 175 [2020-10-14 00:54:56,766 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:54:56,767 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:54:56,767 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:54:56,773 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:54:56,774 INFO L82 PathProgramCache]: Analyzing trace with hash 476549733, now seen corresponding path program 1 times [2020-10-14 00:54:56,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:54:56,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1528114749] [2020-10-14 00:54:56,784 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:54:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:54:57,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:54:57,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:00,405 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:00,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-10-14 00:55:00,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:55:00,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3261 [2020-10-14 00:55:00,409 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:00,409 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:00,409 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:55:00,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:55:00,410 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 176 [2020-10-14 00:55:00,410 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-10-14 00:55:00,748 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:55:00,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:55:00,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:00,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:00,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:00,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:55:00,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:00,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 00:55:00,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:00,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:00,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:55:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:00,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:55:00,784 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:00,844 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:55:00,844 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1528114749] [2020-10-14 00:55:00,846 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:55:00,847 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 00:55:00,848 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [7506411] [2020-10-14 00:55:00,853 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 00:55:00,853 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:55:00,868 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 00:55:00,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 00:55:00,871 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 4 states. [2020-10-14 00:55:01,087 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:55:04,068 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:55:04,068 INFO L93 Difference]: Finished difference Result 886 states and 1538 transitions. [2020-10-14 00:55:04,070 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:55:04,071 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 174 [2020-10-14 00:55:04,073 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:55:04,104 INFO L225 Difference]: With dead ends: 886 [2020-10-14 00:55:04,104 INFO L226 Difference]: Without dead ends: 482 [2020-10-14 00:55:04,111 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:55:04,130 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 482 states. [2020-10-14 00:55:04,194 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 482 to 476. [2020-10-14 00:55:04,195 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 476 states. [2020-10-14 00:55:04,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 476 states to 476 states and 724 transitions. [2020-10-14 00:55:04,200 INFO L78 Accepts]: Start accepts. Automaton has 476 states and 724 transitions. Word has length 174 [2020-10-14 00:55:04,201 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:55:04,201 INFO L479 AbstractCegarLoop]: Abstraction has 476 states and 724 transitions. [2020-10-14 00:55:04,201 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 00:55:04,202 INFO L276 IsEmpty]: Start isEmpty. Operand 476 states and 724 transitions. [2020-10-14 00:55:04,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 187 [2020-10-14 00:55:04,208 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:55:04,208 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:55:04,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:55:04,209 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:55:04,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:55:04,209 INFO L82 PathProgramCache]: Analyzing trace with hash 189781713, now seen corresponding path program 1 times [2020-10-14 00:55:04,210 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:55:04,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [147133039] [2020-10-14 00:55:04,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:55:04,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:04,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:04,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:07,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:07,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-14 00:55:07,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:55:07,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3439 [2020-10-14 00:55:07,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:07,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:07,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:55:07,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 00:55:07,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 00:55:07,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:08,133 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:55:08,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:55:08,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:08,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:08,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:08,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:55:08,162 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:08,162 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 00:55:08,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:08,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:08,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:55:08,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:08,164 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:55:08,165 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-14 00:55:08,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:55:08,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:08,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:08,300 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:08,301 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:55:08,301 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:08,309 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-14 00:55:08,309 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:08,310 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:08,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:55:08,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:08,310 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 00:55:08,311 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:08,402 INFO L134 CoverageAnalysis]: Checked inductivity of 9 backedges. 8 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:55:08,402 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [147133039] [2020-10-14 00:55:08,403 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:55:08,403 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:55:08,404 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [735837334] [2020-10-14 00:55:08,408 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:55:08,409 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:55:08,409 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:55:08,410 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:55:08,410 INFO L87 Difference]: Start difference. First operand 476 states and 724 transitions. Second operand 5 states. [2020-10-14 00:55:08,716 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:55:11,411 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:55:11,412 INFO L93 Difference]: Finished difference Result 1372 states and 2116 transitions. [2020-10-14 00:55:11,412 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:55:11,412 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 186 [2020-10-14 00:55:11,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:55:11,420 INFO L225 Difference]: With dead ends: 1372 [2020-10-14 00:55:11,421 INFO L226 Difference]: Without dead ends: 902 [2020-10-14 00:55:11,423 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:55:11,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 902 states. [2020-10-14 00:55:11,468 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 902 to 896. [2020-10-14 00:55:11,468 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 896 states. [2020-10-14 00:55:11,473 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 896 states to 896 states and 1216 transitions. [2020-10-14 00:55:11,476 INFO L78 Accepts]: Start accepts. Automaton has 896 states and 1216 transitions. Word has length 186 [2020-10-14 00:55:11,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:55:11,477 INFO L479 AbstractCegarLoop]: Abstraction has 896 states and 1216 transitions. [2020-10-14 00:55:11,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:55:11,477 INFO L276 IsEmpty]: Start isEmpty. Operand 896 states and 1216 transitions. [2020-10-14 00:55:11,487 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 202 [2020-10-14 00:55:11,487 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:55:11,488 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:55:11,488 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 00:55:11,491 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:55:11,491 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:55:11,492 INFO L82 PathProgramCache]: Analyzing trace with hash 828900126, now seen corresponding path program 1 times [2020-10-14 00:55:11,492 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:55:11,492 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1282877318] [2020-10-14 00:55:11,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:55:11,551 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:11,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:12,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:13,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:14,512 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:14,513 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 211 [2020-10-14 00:55:14,513 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:55:14,513 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2959 [2020-10-14 00:55:14,513 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:14,514 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:14,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:55:14,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 37 [2020-10-14 00:55:14,514 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 00:55:14,514 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:14,906 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:55:14,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:55:14,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:14,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:14,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:14,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:55:14,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:14,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 00:55:14,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:14,923 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:14,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:55:14,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:14,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:55:14,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:15,048 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 88 [2020-10-14 00:55:15,049 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:55:15,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:15,072 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:15,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:15,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 00:55:15,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:15,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-14 00:55:15,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:15,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:15,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:55:15,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:15,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 00:55:15,127 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:15,317 INFO L134 CoverageAnalysis]: Checked inductivity of 24 backedges. 23 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:55:15,319 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1282877318] [2020-10-14 00:55:15,319 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:55:15,320 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:55:15,320 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1195951680] [2020-10-14 00:55:15,321 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:55:15,322 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:55:15,322 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:55:15,322 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:55:15,322 INFO L87 Difference]: Start difference. First operand 896 states and 1216 transitions. Second operand 5 states. [2020-10-14 00:55:15,721 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:55:18,792 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:55:18,793 INFO L93 Difference]: Finished difference Result 2633 states and 3628 transitions. [2020-10-14 00:55:18,794 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:55:18,795 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 201 [2020-10-14 00:55:18,796 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:55:18,813 INFO L225 Difference]: With dead ends: 2633 [2020-10-14 00:55:18,813 INFO L226 Difference]: Without dead ends: 1743 [2020-10-14 00:55:18,817 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:55:18,820 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1743 states. [2020-10-14 00:55:18,888 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1743 to 1738. [2020-10-14 00:55:18,888 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1738 states. [2020-10-14 00:55:18,898 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1738 states to 1738 states and 2282 transitions. [2020-10-14 00:55:18,899 INFO L78 Accepts]: Start accepts. Automaton has 1738 states and 2282 transitions. Word has length 201 [2020-10-14 00:55:18,900 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:55:18,900 INFO L479 AbstractCegarLoop]: Abstraction has 1738 states and 2282 transitions. [2020-10-14 00:55:18,900 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:55:18,900 INFO L276 IsEmpty]: Start isEmpty. Operand 1738 states and 2282 transitions. [2020-10-14 00:55:18,913 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 205 [2020-10-14 00:55:18,913 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:55:18,914 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:55:18,914 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 00:55:18,914 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:55:18,914 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:55:18,915 INFO L82 PathProgramCache]: Analyzing trace with hash 1303458662, now seen corresponding path program 1 times [2020-10-14 00:55:18,915 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:55:18,915 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54568245] [2020-10-14 00:55:18,916 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:55:18,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:19,043 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:19,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:20,328 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:21,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:21,484 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 214 [2020-10-14 00:55:21,484 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:55:21,484 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2506 [2020-10-14 00:55:21,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:21,485 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:21,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:55:21,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 40 [2020-10-14 00:55:21,485 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 00:55:21,485 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:55:21,744 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:55:21,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:55:21,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:21,753 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:21,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:21,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:55:21,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:21,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 00:55:21,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:21,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:21,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:55:21,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:21,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:55:21,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:21,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:55:21,865 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:21,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:21,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:21,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 00:55:21,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:21,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-14 00:55:21,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:21,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:21,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:55:21,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:21,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 25 [2020-10-14 00:55:21,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:22,015 INFO L134 CoverageAnalysis]: Checked inductivity of 27 backedges. 26 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:55:22,016 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54568245] [2020-10-14 00:55:22,017 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:55:22,017 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-14 00:55:22,017 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1285910454] [2020-10-14 00:55:22,018 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 00:55:22,019 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:55:22,019 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 00:55:22,019 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:55:22,019 INFO L87 Difference]: Start difference. First operand 1738 states and 2282 transitions. Second operand 6 states. [2020-10-14 00:55:22,294 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:55:22,672 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:55:26,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:55:26,409 INFO L93 Difference]: Finished difference Result 4313 states and 5855 transitions. [2020-10-14 00:55:26,413 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 00:55:26,413 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 204 [2020-10-14 00:55:26,414 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:55:26,430 INFO L225 Difference]: With dead ends: 4313 [2020-10-14 00:55:26,430 INFO L226 Difference]: Without dead ends: 2581 [2020-10-14 00:55:26,436 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:55:26,439 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2581 states. [2020-10-14 00:55:26,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2581 to 2574. [2020-10-14 00:55:26,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2574 states. [2020-10-14 00:55:26,530 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2574 states to 2574 states and 3465 transitions. [2020-10-14 00:55:26,530 INFO L78 Accepts]: Start accepts. Automaton has 2574 states and 3465 transitions. Word has length 204 [2020-10-14 00:55:26,531 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:55:26,531 INFO L479 AbstractCegarLoop]: Abstraction has 2574 states and 3465 transitions. [2020-10-14 00:55:26,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 00:55:26,531 INFO L276 IsEmpty]: Start isEmpty. Operand 2574 states and 3465 transitions. [2020-10-14 00:55:26,540 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 209 [2020-10-14 00:55:26,540 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:55:26,541 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:55:26,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 00:55:26,542 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:55:26,543 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:55:26,543 INFO L82 PathProgramCache]: Analyzing trace with hash 1967446622, now seen corresponding path program 1 times [2020-10-14 00:55:26,543 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:55:26,544 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353145974] [2020-10-14 00:55:26,544 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:55:26,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:26,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:27,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:28,299 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:28,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 218 [2020-10-14 00:55:28,300 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:55:28,300 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1710 [2020-10-14 00:55:28,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:28,301 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-14 00:55:28,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:55:28,302 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 212 [2020-10-14 00:55:28,302 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:28,536 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:55:28,539 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:55:28,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:28,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:28,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:28,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:55:28,561 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:28,562 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 00:55:28,562 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:28,562 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:28,562 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:55:28,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:28,563 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:55:28,563 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:28,664 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:55:28,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:28,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:28,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:28,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:55:28,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:28,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 00:55:28,760 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:28,760 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:28,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:55:28,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:55:28,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 00:55:28,761 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:28,866 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 0 proven. 28 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2020-10-14 00:55:28,867 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353145974] [2020-10-14 00:55:28,867 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:55:28,867 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:55:28,868 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [43323377] [2020-10-14 00:55:28,868 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-14 00:55:28,868 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:55:28,869 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-14 00:55:28,869 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:55:28,869 INFO L87 Difference]: Start difference. First operand 2574 states and 3465 transitions. Second operand 6 states. [2020-10-14 00:55:29,004 WARN L193 SmtUtils]: Spent 119.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:55:31,741 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:55:31,741 INFO L93 Difference]: Finished difference Result 7784 states and 11060 transitions. [2020-10-14 00:55:31,742 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-14 00:55:31,742 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 208 [2020-10-14 00:55:31,743 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:55:31,775 INFO L225 Difference]: With dead ends: 7784 [2020-10-14 00:55:31,775 INFO L226 Difference]: Without dead ends: 5216 [2020-10-14 00:55:31,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:55:31,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5216 states. [2020-10-14 00:55:31,944 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5216 to 5163. [2020-10-14 00:55:31,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5163 states. [2020-10-14 00:55:31,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5163 states to 5163 states and 6924 transitions. [2020-10-14 00:55:31,974 INFO L78 Accepts]: Start accepts. Automaton has 5163 states and 6924 transitions. Word has length 208 [2020-10-14 00:55:31,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:55:31,975 INFO L479 AbstractCegarLoop]: Abstraction has 5163 states and 6924 transitions. [2020-10-14 00:55:31,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-14 00:55:31,976 INFO L276 IsEmpty]: Start isEmpty. Operand 5163 states and 6924 transitions. [2020-10-14 00:55:31,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 242 [2020-10-14 00:55:31,999 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:55:31,999 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:55:32,000 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 00:55:32,000 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:55:32,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:55:32,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1100990368, now seen corresponding path program 1 times [2020-10-14 00:55:32,001 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:55:32,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [262106432] [2020-10-14 00:55:32,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:55:32,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:32,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:32,350 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:35,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:35,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-14 00:55:35,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:55:35,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3154 [2020-10-14 00:55:35,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:35,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:55:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 77 [2020-10-14 00:55:35,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 00:55:35,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:55:35,533 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:55:35,536 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:55:35,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:35,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:35,546 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:35,546 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:55:35,546 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:35,547 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:55:35,547 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:35,547 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:35,547 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:55:35,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:35,548 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:55:35,548 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:35,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:55:35,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:35,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:35,730 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:35,731 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 00:55:35,731 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:35,731 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 00:55:35,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:35,731 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:35,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:55:35,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:35,732 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 00:55:35,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:55:35,800 INFO L134 CoverageAnalysis]: Checked inductivity of 64 backedges. 63 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:55:35,801 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [262106432] [2020-10-14 00:55:35,801 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:55:35,801 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:55:35,801 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [181605210] [2020-10-14 00:55:35,802 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:55:35,802 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:55:35,802 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:55:35,803 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:55:35,803 INFO L87 Difference]: Start difference. First operand 5163 states and 6924 transitions. Second operand 5 states. [2020-10-14 00:55:35,946 WARN L193 SmtUtils]: Spent 113.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:55:38,702 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:55:38,702 INFO L93 Difference]: Finished difference Result 14988 states and 20610 transitions. [2020-10-14 00:55:38,703 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:55:38,703 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 241 [2020-10-14 00:55:38,703 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:55:38,752 INFO L225 Difference]: With dead ends: 14988 [2020-10-14 00:55:38,752 INFO L226 Difference]: Without dead ends: 9831 [2020-10-14 00:55:38,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 7 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:55:38,780 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9831 states. [2020-10-14 00:55:39,043 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9831 to 9797. [2020-10-14 00:55:39,045 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9797 states. [2020-10-14 00:55:39,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9797 states to 9797 states and 13453 transitions. [2020-10-14 00:55:39,077 INFO L78 Accepts]: Start accepts. Automaton has 9797 states and 13453 transitions. Word has length 241 [2020-10-14 00:55:39,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:55:39,078 INFO L479 AbstractCegarLoop]: Abstraction has 9797 states and 13453 transitions. [2020-10-14 00:55:39,078 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:55:39,078 INFO L276 IsEmpty]: Start isEmpty. Operand 9797 states and 13453 transitions. [2020-10-14 00:55:39,118 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-14 00:55:39,119 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:55:39,119 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:55:39,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 00:55:39,120 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:55:39,120 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:55:39,120 INFO L82 PathProgramCache]: Analyzing trace with hash 1801673170, now seen corresponding path program 1 times [2020-10-14 00:55:39,121 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:55:39,122 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [724129729] [2020-10-14 00:55:39,123 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:55:39,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:39,213 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:39,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:41,210 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:41,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:42,855 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:44,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:44,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 266 [2020-10-14 00:55:44,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:55:44,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5063 [2020-10-14 00:55:44,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:44,248 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:44,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:55:44,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 00:55:44,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 209 [2020-10-14 00:55:44,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:55:44,524 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:55:44,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:55:44,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:44,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:44,535 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:44,535 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:55:44,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:44,536 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:55:44,536 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:44,536 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:44,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:55:44,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:44,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:55:44,537 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:55:44,620 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:55:44,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:44,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:44,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:44,651 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 00:55:44,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:44,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 00:55:44,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:44,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:44,651 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:55:44,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:44,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:55:44,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:55:44,659 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 00:55:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:44,670 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:44,686 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:44,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 00:55:44,687 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:44,687 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 00:55:44,687 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:44,687 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:44,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:55:44,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:44,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 00:55:44,688 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:55:44,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 52 [2020-10-14 00:55:44,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:44,719 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:44,815 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:44,816 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:55:44,816 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:44,816 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-14 00:55:44,816 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:44,816 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:44,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:55:44,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:55:44,817 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 00:55:44,817 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:55:44,967 INFO L134 CoverageAnalysis]: Checked inductivity of 130 backedges. 78 proven. 36 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 00:55:44,967 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [724129729] [2020-10-14 00:55:44,968 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:55:44,968 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:55:44,968 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [323853299] [2020-10-14 00:55:44,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:55:44,970 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:55:44,970 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:55:44,970 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:55:44,970 INFO L87 Difference]: Start difference. First operand 9797 states and 13453 transitions. Second operand 7 states. [2020-10-14 00:55:45,240 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:55:45,801 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:55:50,529 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:55:50,530 INFO L93 Difference]: Finished difference Result 20908 states and 30442 transitions. [2020-10-14 00:55:50,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:55:50,531 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 252 [2020-10-14 00:55:50,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:55:50,642 INFO L225 Difference]: With dead ends: 20908 [2020-10-14 00:55:50,643 INFO L226 Difference]: Without dead ends: 20906 [2020-10-14 00:55:50,653 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:55:50,677 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20906 states. [2020-10-14 00:55:51,314 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20906 to 20796. [2020-10-14 00:55:51,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20796 states. [2020-10-14 00:55:51,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20796 states to 20796 states and 29840 transitions. [2020-10-14 00:55:51,369 INFO L78 Accepts]: Start accepts. Automaton has 20796 states and 29840 transitions. Word has length 252 [2020-10-14 00:55:51,369 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:55:51,370 INFO L479 AbstractCegarLoop]: Abstraction has 20796 states and 29840 transitions. [2020-10-14 00:55:51,370 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:55:51,370 INFO L276 IsEmpty]: Start isEmpty. Operand 20796 states and 29840 transitions. [2020-10-14 00:55:51,445 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 253 [2020-10-14 00:55:51,446 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:55:51,446 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:55:51,447 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 00:55:51,447 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:55:51,447 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:55:51,447 INFO L82 PathProgramCache]: Analyzing trace with hash 1398753987, now seen corresponding path program 1 times [2020-10-14 00:55:51,448 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:55:51,453 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1796264677] [2020-10-14 00:55:51,453 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:55:51,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:51,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:51,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:53,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:56,506 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:56,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 264 [2020-10-14 00:55:56,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:55:56,507 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4988 [2020-10-14 00:55:56,507 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:56,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:55:56,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 90 [2020-10-14 00:55:56,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 173 [2020-10-14 00:55:56,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:55:56,825 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:55:56,826 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:55:56,830 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:56,831 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:56,835 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:56,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:55:56,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:56,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:55:56,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:56,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:56,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:55:56,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:56,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:55:56,836 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:55:56,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:55:56,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:56,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:56,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:56,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 00:55:56,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:56,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 00:55:56,960 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:56,960 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:56,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:55:56,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:56,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:55:56,961 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:55:56,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 75 [2020-10-14 00:55:56,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:55:56,988 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:55:56,999 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:55:57,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 00:55:57,000 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:55:57,000 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 00:55:57,000 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:55:57,000 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:55:57,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:55:57,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:55:57,000 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:55:57,001 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:55:57,079 INFO L134 CoverageAnalysis]: Checked inductivity of 83 backedges. 73 proven. 2 refuted. 0 times theorem prover too weak. 8 trivial. 0 not checked. [2020-10-14 00:55:57,080 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1796264677] [2020-10-14 00:55:57,080 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:55:57,080 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:55:57,080 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [4428383] [2020-10-14 00:55:57,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:55:57,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:55:57,081 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:55:57,081 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:55:57,082 INFO L87 Difference]: Start difference. First operand 20796 states and 29840 transitions. Second operand 5 states. [2020-10-14 00:55:57,233 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:56:00,202 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:56:00,202 INFO L93 Difference]: Finished difference Result 49173 states and 71789 transitions. [2020-10-14 00:56:00,202 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:56:00,202 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 252 [2020-10-14 00:56:00,203 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:56:00,324 INFO L225 Difference]: With dead ends: 49173 [2020-10-14 00:56:00,325 INFO L226 Difference]: Without dead ends: 28383 [2020-10-14 00:56:00,398 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 7 SyntacticMatches, 2 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:56:00,441 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28383 states. [2020-10-14 00:56:01,157 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28383 to 28357. [2020-10-14 00:56:01,158 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28357 states. [2020-10-14 00:56:01,226 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28357 states to 28357 states and 40162 transitions. [2020-10-14 00:56:01,227 INFO L78 Accepts]: Start accepts. Automaton has 28357 states and 40162 transitions. Word has length 252 [2020-10-14 00:56:01,227 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:56:01,228 INFO L479 AbstractCegarLoop]: Abstraction has 28357 states and 40162 transitions. [2020-10-14 00:56:01,228 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:56:01,228 INFO L276 IsEmpty]: Start isEmpty. Operand 28357 states and 40162 transitions. [2020-10-14 00:56:01,319 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 263 [2020-10-14 00:56:01,319 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:56:01,319 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:56:01,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 00:56:01,320 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:56:01,320 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:56:01,320 INFO L82 PathProgramCache]: Analyzing trace with hash 1703989082, now seen corresponding path program 1 times [2020-10-14 00:56:01,320 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:56:01,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1522897949] [2020-10-14 00:56:01,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:56:01,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:01,388 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:01,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:01,598 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:01,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:03,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:05,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:06,374 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:06,374 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 278 [2020-10-14 00:56:06,374 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 00:56:06,374 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-10-14 00:56:06,374 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:06,374 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:06,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:06,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-14 00:56:06,375 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 37 [2020-10-14 00:56:06,375 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:06,558 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:56:06,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:56:06,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:06,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:06,566 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:06,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:56:06,567 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:06,567 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:56:06,567 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:06,567 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:06,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:06,567 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:06,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:06,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:06,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:56:06,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:06,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:06,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:06,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 00:56:06,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:06,661 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 00:56:06,661 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:06,661 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:06,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:06,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:06,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:06,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:06,668 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-10-14 00:56:06,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:06,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:06,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:06,688 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:56:06,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:06,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:56:06,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:06,688 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:06,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:06,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:06,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:06,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:06,695 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 00:56:06,700 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:06,702 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:06,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:06,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 00:56:06,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:06,715 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 00:56:06,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:06,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:06,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:56:06,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:06,716 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:56:06,716 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:06,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-10-14 00:56:06,732 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:06,741 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:06,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:06,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:56:06,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:06,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 62 [2020-10-14 00:56:06,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:06,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:56:06,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 35 [2020-10-14 00:56:06,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:06,872 INFO L134 CoverageAnalysis]: Checked inductivity of 168 backedges. 131 proven. 2 refuted. 0 times theorem prover too weak. 35 trivial. 0 not checked. [2020-10-14 00:56:06,872 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1522897949] [2020-10-14 00:56:06,872 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:56:06,872 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:56:06,872 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1218842446] [2020-10-14 00:56:06,873 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:56:06,873 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:56:06,873 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:56:06,873 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:56:06,873 INFO L87 Difference]: Start difference. First operand 28357 states and 40162 transitions. Second operand 7 states. [2020-10-14 00:56:07,027 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:56:07,512 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:56:10,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:56:10,223 INFO L93 Difference]: Finished difference Result 56905 states and 84120 transitions. [2020-10-14 00:56:10,224 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:56:10,224 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 262 [2020-10-14 00:56:10,224 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:56:10,365 INFO L225 Difference]: With dead ends: 56905 [2020-10-14 00:56:10,366 INFO L226 Difference]: Without dead ends: 28554 [2020-10-14 00:56:10,446 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:56:10,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 28554 states. [2020-10-14 00:56:11,436 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 28554 to 24922. [2020-10-14 00:56:11,437 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24922 states. [2020-10-14 00:56:11,490 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24922 states to 24922 states and 33583 transitions. [2020-10-14 00:56:11,490 INFO L78 Accepts]: Start accepts. Automaton has 24922 states and 33583 transitions. Word has length 262 [2020-10-14 00:56:11,490 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:56:11,491 INFO L479 AbstractCegarLoop]: Abstraction has 24922 states and 33583 transitions. [2020-10-14 00:56:11,491 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:56:11,491 INFO L276 IsEmpty]: Start isEmpty. Operand 24922 states and 33583 transitions. [2020-10-14 00:56:11,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 323 [2020-10-14 00:56:11,527 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:56:11,528 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:56:11,528 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 00:56:11,528 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:56:11,529 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:56:11,529 INFO L82 PathProgramCache]: Analyzing trace with hash 905693938, now seen corresponding path program 1 times [2020-10-14 00:56:11,529 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:56:11,529 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1635203969] [2020-10-14 00:56:11,529 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:56:11,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:11,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:11,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:11,822 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:12,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:13,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:15,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:16,581 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:16,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 336 [2020-10-14 00:56:16,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-14 00:56:16,582 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-10-14 00:56:16,582 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:16,582 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:16,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:56:16,582 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-10-14 00:56:16,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:56:16,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:16,913 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:56:16,914 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:56:16,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:16,919 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:16,923 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:16,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:56:16,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:16,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:56:16,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:16,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:16,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:16,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:16,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:16,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:17,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:56:17,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:17,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:17,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:17,015 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 00:56:17,015 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:17,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 00:56:17,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:17,016 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:17,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:17,016 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:17,021 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 00:56:17,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:17,070 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:17,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:17,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 94 [2020-10-14 00:56:17,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:17,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 00:56:17,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:17,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:17,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:56:17,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 86 [2020-10-14 00:56:17,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:56:17,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:17,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-10-14 00:56:17,180 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:17,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:17,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:17,202 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:56:17,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:17,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 00:56:17,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:17,203 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:56:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:17,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:17,266 INFO L134 CoverageAnalysis]: Checked inductivity of 213 backedges. 144 proven. 2 refuted. 0 times theorem prover too weak. 67 trivial. 0 not checked. [2020-10-14 00:56:17,267 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1635203969] [2020-10-14 00:56:17,267 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:56:17,267 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:56:17,268 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [116380116] [2020-10-14 00:56:17,268 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:56:17,268 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:56:17,268 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:56:17,269 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:56:17,269 INFO L87 Difference]: Start difference. First operand 24922 states and 33583 transitions. Second operand 5 states. [2020-10-14 00:56:17,624 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:56:19,061 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:56:19,061 INFO L93 Difference]: Finished difference Result 49225 states and 66300 transitions. [2020-10-14 00:56:19,062 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-10-14 00:56:19,062 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 322 [2020-10-14 00:56:19,062 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:56:19,136 INFO L225 Difference]: With dead ends: 49225 [2020-10-14 00:56:19,137 INFO L226 Difference]: Without dead ends: 24309 [2020-10-14 00:56:19,172 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:56:19,195 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24309 states. [2020-10-14 00:56:19,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24309 to 24289. [2020-10-14 00:56:19,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24289 states. [2020-10-14 00:56:19,658 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24289 states to 24289 states and 32654 transitions. [2020-10-14 00:56:19,659 INFO L78 Accepts]: Start accepts. Automaton has 24289 states and 32654 transitions. Word has length 322 [2020-10-14 00:56:19,659 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:56:19,660 INFO L479 AbstractCegarLoop]: Abstraction has 24289 states and 32654 transitions. [2020-10-14 00:56:19,660 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:56:19,660 INFO L276 IsEmpty]: Start isEmpty. Operand 24289 states and 32654 transitions. [2020-10-14 00:56:19,702 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-10-14 00:56:19,703 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:56:19,703 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:56:19,703 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 00:56:19,703 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:56:19,704 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:56:19,704 INFO L82 PathProgramCache]: Analyzing trace with hash 781112213, now seen corresponding path program 1 times [2020-10-14 00:56:19,704 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:56:19,704 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [564987696] [2020-10-14 00:56:19,704 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:56:19,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:19,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:20,120 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:21,024 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:21,739 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:24,857 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:24,857 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 383 [2020-10-14 00:56:24,857 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:56:24,858 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5053 [2020-10-14 00:56:24,858 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:24,858 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:24,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:24,858 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 31 [2020-10-14 00:56:24,859 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 00:56:24,859 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:25,054 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:56:25,054 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:56:25,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:25,059 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:25,063 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:25,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:56:25,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:25,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:56:25,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:25,063 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:25,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:25,064 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:25,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:25,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:56:25,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:25,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:25,173 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:25,173 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 00:56:25,173 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:25,174 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 00:56:25,174 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:25,174 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:25,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:56:25,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:25,174 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 16 [2020-10-14 00:56:25,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:25,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 00:56:25,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:25,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:25,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:25,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 00:56:25,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:25,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 240 [2020-10-14 00:56:25,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:25,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:25,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:25,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:56:25,460 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 00:56:25,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:25,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 169 [2020-10-14 00:56:25,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:25,601 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:25,617 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:25,618 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:56:25,618 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:25,618 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 00:56:25,618 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:25,618 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:25,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:25,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:56:25,618 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:25,619 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:25,747 INFO L134 CoverageAnalysis]: Checked inductivity of 260 backedges. 206 proven. 33 refuted. 0 times theorem prover too weak. 21 trivial. 0 not checked. [2020-10-14 00:56:25,747 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [564987696] [2020-10-14 00:56:25,747 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:56:25,748 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:56:25,748 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [48572589] [2020-10-14 00:56:25,749 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:56:25,749 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:56:25,749 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:56:25,749 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:56:25,750 INFO L87 Difference]: Start difference. First operand 24289 states and 32654 transitions. Second operand 7 states. [2020-10-14 00:56:26,014 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:56:27,161 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 00:56:31,297 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:56:31,297 INFO L93 Difference]: Finished difference Result 58430 states and 83696 transitions. [2020-10-14 00:56:31,298 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:56:31,298 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 369 [2020-10-14 00:56:31,298 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:56:31,439 INFO L225 Difference]: With dead ends: 58430 [2020-10-14 00:56:31,439 INFO L226 Difference]: Without dead ends: 34147 [2020-10-14 00:56:31,483 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:56:31,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34147 states. [2020-10-14 00:56:32,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34147 to 32058. [2020-10-14 00:56:32,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32058 states. [2020-10-14 00:56:32,368 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32058 states to 32058 states and 42255 transitions. [2020-10-14 00:56:32,368 INFO L78 Accepts]: Start accepts. Automaton has 32058 states and 42255 transitions. Word has length 369 [2020-10-14 00:56:32,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:56:32,368 INFO L479 AbstractCegarLoop]: Abstraction has 32058 states and 42255 transitions. [2020-10-14 00:56:32,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:56:32,369 INFO L276 IsEmpty]: Start isEmpty. Operand 32058 states and 42255 transitions. [2020-10-14 00:56:32,408 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 384 [2020-10-14 00:56:32,408 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:56:32,408 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:56:32,408 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 00:56:32,409 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:56:32,409 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:56:32,409 INFO L82 PathProgramCache]: Analyzing trace with hash -341697159, now seen corresponding path program 1 times [2020-10-14 00:56:32,409 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:56:32,410 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [352001916] [2020-10-14 00:56:32,410 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:56:32,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:32,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:32,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:33,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:35,108 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:37,540 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:37,610 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:37,611 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 397 [2020-10-14 00:56:37,611 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:56:37,611 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5091 [2020-10-14 00:56:37,611 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:37,611 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 45 [2020-10-14 00:56:37,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 142 [2020-10-14 00:56:37,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:37,794 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:56:37,794 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:56:37,798 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:37,799 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:37,802 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:37,802 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:56:37,803 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:37,803 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:56:37,803 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:37,803 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:37,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:37,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:37,803 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:37,803 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:37,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:56:37,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:37,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:37,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:37,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-10-14 00:56:37,936 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:37,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 00:56:37,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:37,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:37,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:56:37,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:37,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 30 [2020-10-14 00:56:37,937 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:37,947 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-10-14 00:56:37,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:38,011 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:38,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:38,215 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 00:56:38,215 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:38,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-14 00:56:38,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:38,216 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:38,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:38,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:56:38,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 00:56:38,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:38,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-14 00:56:38,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:38,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:38,316 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:38,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:56:38,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:38,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 00:56:38,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:38,317 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:38,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:38,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:56:38,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:38,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:39,422 INFO L134 CoverageAnalysis]: Checked inductivity of 301 backedges. 234 proven. 33 refuted. 0 times theorem prover too weak. 34 trivial. 0 not checked. [2020-10-14 00:56:39,423 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [352001916] [2020-10-14 00:56:39,423 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:56:39,423 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:56:39,423 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [345042492] [2020-10-14 00:56:39,424 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:56:39,424 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:56:39,425 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:56:39,425 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:56:39,425 INFO L87 Difference]: Start difference. First operand 32058 states and 42255 transitions. Second operand 7 states. [2020-10-14 00:56:39,574 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:56:43,010 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:56:43,011 INFO L93 Difference]: Finished difference Result 81905 states and 112681 transitions. [2020-10-14 00:56:43,011 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 00:56:43,011 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 383 [2020-10-14 00:56:43,011 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:56:43,232 INFO L225 Difference]: With dead ends: 81905 [2020-10-14 00:56:43,232 INFO L226 Difference]: Without dead ends: 51000 [2020-10-14 00:56:43,301 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 11 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-14 00:56:43,356 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 51000 states. [2020-10-14 00:56:44,575 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 51000 to 50430. [2020-10-14 00:56:44,575 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50430 states. [2020-10-14 00:56:44,725 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50430 states to 50430 states and 67090 transitions. [2020-10-14 00:56:44,726 INFO L78 Accepts]: Start accepts. Automaton has 50430 states and 67090 transitions. Word has length 383 [2020-10-14 00:56:44,728 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:56:44,728 INFO L479 AbstractCegarLoop]: Abstraction has 50430 states and 67090 transitions. [2020-10-14 00:56:44,729 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:56:44,729 INFO L276 IsEmpty]: Start isEmpty. Operand 50430 states and 67090 transitions. [2020-10-14 00:56:44,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 417 [2020-10-14 00:56:44,854 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:56:44,854 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 00:56:44,855 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 00:56:44,855 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:56:44,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:56:44,856 INFO L82 PathProgramCache]: Analyzing trace with hash -939673699, now seen corresponding path program 1 times [2020-10-14 00:56:44,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:56:44,857 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [954399368] [2020-10-14 00:56:44,857 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:56:44,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:44,996 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:45,103 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:45,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:45,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:49,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:49,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 432 [2020-10-14 00:56:49,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:56:49,984 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-14 00:56:49,984 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:49,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:49,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:49,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 00:56:49,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 00:56:49,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:50,177 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:56:50,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:56:50,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:50,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:50,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:50,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:56:50,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:50,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:56:50,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:50,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:50,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:50,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:50,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:50,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:50,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:56:50,276 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:50,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:50,286 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:50,286 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 00:56:50,286 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:50,287 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 00:56:50,287 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:50,287 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:50,287 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:50,287 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:50,293 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 00:56:50,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:50,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:50,351 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:50,352 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 00:56:50,352 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:50,352 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 00:56:50,352 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:50,352 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:50,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:56:50,352 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:56:50,353 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 00:56:50,353 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:50,364 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 00:56:50,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:50,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:50,808 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:50,808 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 00:56:50,809 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:50,809 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 400 [2020-10-14 00:56:50,809 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:50,809 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:56:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:56:50,810 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 141 [2020-10-14 00:56:50,810 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:56:50,906 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-10-14 00:56:50,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:50,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:50,938 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:56:50,938 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:56:50,938 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:56:50,938 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 00:56:50,938 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:56:50,938 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:56:50,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:56:50,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:56:50,939 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:56:50,939 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:56:51,053 INFO L134 CoverageAnalysis]: Checked inductivity of 410 backedges. 303 proven. 33 refuted. 0 times theorem prover too weak. 74 trivial. 0 not checked. [2020-10-14 00:56:51,053 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [954399368] [2020-10-14 00:56:51,053 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:56:51,053 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:56:51,054 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [436777637] [2020-10-14 00:56:51,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:56:51,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:56:51,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:56:51,055 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:56:51,055 INFO L87 Difference]: Start difference. First operand 50430 states and 67090 transitions. Second operand 7 states. [2020-10-14 00:56:51,214 WARN L193 SmtUtils]: Spent 131.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:56:51,729 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:56:54,502 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:56:54,502 INFO L93 Difference]: Finished difference Result 100143 states and 136602 transitions. [2020-10-14 00:56:54,503 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:56:54,503 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 416 [2020-10-14 00:56:54,503 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:56:54,642 INFO L225 Difference]: With dead ends: 100143 [2020-10-14 00:56:54,642 INFO L226 Difference]: Without dead ends: 50868 [2020-10-14 00:56:54,701 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 14 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:56:54,738 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 50868 states. [2020-10-14 00:56:55,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 50868 to 50448. [2020-10-14 00:56:55,756 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 50448 states. [2020-10-14 00:56:55,906 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 50448 states to 50448 states and 66676 transitions. [2020-10-14 00:56:55,906 INFO L78 Accepts]: Start accepts. Automaton has 50448 states and 66676 transitions. Word has length 416 [2020-10-14 00:56:55,907 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:56:55,907 INFO L479 AbstractCegarLoop]: Abstraction has 50448 states and 66676 transitions. [2020-10-14 00:56:55,907 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:56:55,907 INFO L276 IsEmpty]: Start isEmpty. Operand 50448 states and 66676 transitions. [2020-10-14 00:56:56,022 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 474 [2020-10-14 00:56:56,023 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:56:56,023 INFO L422 BasicCegarLoop]: trace histogram [6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:56:56,023 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 00:56:56,023 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:56:56,024 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:56:56,024 INFO L82 PathProgramCache]: Analyzing trace with hash 1581276626, now seen corresponding path program 1 times [2020-10-14 00:56:56,024 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:56:56,024 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [529738211] [2020-10-14 00:56:56,025 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:56:56,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:56,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:56,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:56,337 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:57,022 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:01,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:01,167 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 491 [2020-10-14 00:57:01,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:57:01,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5072 [2020-10-14 00:57:01,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:01,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:01,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:01,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 00:57:01,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-10-14 00:57:01,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:01,593 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:01,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:01,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:01,599 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:01,602 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:01,602 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:01,602 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:01,603 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:57:01,603 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:01,603 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:01,603 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:01,603 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:01,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:01,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:01,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:01,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:01,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 00:57:01,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:01,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:57:01,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:01,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:01,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:01,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:01,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:01,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:01,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 00:57:01,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:01,727 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:01,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:01,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 00:57:01,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:01,765 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 46 [2020-10-14 00:57:01,765 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:01,765 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:01,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:01,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:01,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 00:57:01,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:01,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 00:57:01,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:01,802 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:01,883 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:01,883 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 00:57:01,883 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:01,883 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 00:57:01,883 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:01,883 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:01,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:01,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:01,884 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 58 [2020-10-14 00:57:01,884 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:01,918 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-14 00:57:01,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:01,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:02,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:02,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 00:57:02,032 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:02,032 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-14 00:57:02,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:02,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:02,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:02,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 00:57:02,033 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:02,033 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:02,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2020-10-14 00:57:02,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:02,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:02,105 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:02,105 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:57:02,105 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:02,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 00:57:02,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:02,106 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:02,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:02,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:57:02,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:02,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:02,261 INFO L134 CoverageAnalysis]: Checked inductivity of 623 backedges. 365 proven. 87 refuted. 0 times theorem prover too weak. 171 trivial. 0 not checked. [2020-10-14 00:57:02,262 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [529738211] [2020-10-14 00:57:02,262 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:02,262 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:57:02,262 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [749980454] [2020-10-14 00:57:02,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:57:02,263 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:02,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:57:02,263 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:02,263 INFO L87 Difference]: Start difference. First operand 50448 states and 66676 transitions. Second operand 7 states. [2020-10-14 00:57:02,518 WARN L193 SmtUtils]: Spent 129.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:57:02,799 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:57:06,987 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:06,988 INFO L93 Difference]: Finished difference Result 96671 states and 133471 transitions. [2020-10-14 00:57:06,989 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:57:06,989 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 473 [2020-10-14 00:57:06,989 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:07,117 INFO L225 Difference]: With dead ends: 96671 [2020-10-14 00:57:07,117 INFO L226 Difference]: Without dead ends: 46690 [2020-10-14 00:57:07,177 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:57:07,214 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 46690 states. [2020-10-14 00:57:07,896 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 46690 to 38476. [2020-10-14 00:57:07,896 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38476 states. [2020-10-14 00:57:08,345 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38476 states to 38476 states and 48830 transitions. [2020-10-14 00:57:08,346 INFO L78 Accepts]: Start accepts. Automaton has 38476 states and 48830 transitions. Word has length 473 [2020-10-14 00:57:08,346 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:08,346 INFO L479 AbstractCegarLoop]: Abstraction has 38476 states and 48830 transitions. [2020-10-14 00:57:08,346 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:08,346 INFO L276 IsEmpty]: Start isEmpty. Operand 38476 states and 48830 transitions. [2020-10-14 00:57:08,393 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 478 [2020-10-14 00:57:08,393 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:08,393 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 00:57:08,394 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 00:57:08,394 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:08,394 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:08,394 INFO L82 PathProgramCache]: Analyzing trace with hash -1856212831, now seen corresponding path program 1 times [2020-10-14 00:57:08,395 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:08,395 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1602996633] [2020-10-14 00:57:08,395 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:08,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:08,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:08,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:08,766 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:10,542 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:10,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:13,471 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:13,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 493 [2020-10-14 00:57:13,472 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:57:13,472 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 00:57:13,472 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:13,472 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:13,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:13,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 96 [2020-10-14 00:57:13,472 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 00:57:13,473 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:13,661 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:13,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:13,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:13,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:13,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:13,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:13,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:57:13,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:13,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:13,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:13,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:13,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:13,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:13,797 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:13,871 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:13,871 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 87 [2020-10-14 00:57:13,871 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:13,871 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 00:57:13,872 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:13,872 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:13,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:13,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:13,872 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 81 [2020-10-14 00:57:13,872 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:13,898 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-14 00:57:13,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:13,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:13,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:13,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 44 [2020-10-14 00:57:13,982 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:13,982 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 71 [2020-10-14 00:57:13,982 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:13,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:13,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:13,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:13,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 44 [2020-10-14 00:57:13,983 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:14,014 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-14 00:57:14,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:14,086 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:14,162 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:14,162 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 00:57:14,163 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:14,163 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 102 [2020-10-14 00:57:14,163 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:14,163 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 00:57:14,163 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:14,163 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:14,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 277 [2020-10-14 00:57:14,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:14,222 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:14,239 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:14,239 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:57:14,239 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:14,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 00:57:14,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:14,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:14,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:14,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:57:14,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:14,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:14,371 INFO L134 CoverageAnalysis]: Checked inductivity of 557 backedges. 333 proven. 71 refuted. 0 times theorem prover too weak. 153 trivial. 0 not checked. [2020-10-14 00:57:14,371 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1602996633] [2020-10-14 00:57:14,371 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:14,371 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:57:14,372 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1126073244] [2020-10-14 00:57:14,372 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:57:14,372 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:14,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:57:14,373 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:14,373 INFO L87 Difference]: Start difference. First operand 38476 states and 48830 transitions. Second operand 7 states. [2020-10-14 00:57:14,535 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:57:16,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:16,326 INFO L93 Difference]: Finished difference Result 66959 states and 84095 transitions. [2020-10-14 00:57:16,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-10-14 00:57:16,327 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 477 [2020-10-14 00:57:16,327 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:16,407 INFO L225 Difference]: With dead ends: 66959 [2020-10-14 00:57:16,407 INFO L226 Difference]: Without dead ends: 29400 [2020-10-14 00:57:16,455 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=25, Invalid=47, Unknown=0, NotChecked=0, Total=72 [2020-10-14 00:57:16,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29400 states. [2020-10-14 00:57:16,805 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29400 to 28534. [2020-10-14 00:57:16,806 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28534 states. [2020-10-14 00:57:16,842 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28534 states to 28534 states and 34880 transitions. [2020-10-14 00:57:16,843 INFO L78 Accepts]: Start accepts. Automaton has 28534 states and 34880 transitions. Word has length 477 [2020-10-14 00:57:16,843 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:16,843 INFO L479 AbstractCegarLoop]: Abstraction has 28534 states and 34880 transitions. [2020-10-14 00:57:16,843 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:16,843 INFO L276 IsEmpty]: Start isEmpty. Operand 28534 states and 34880 transitions. [2020-10-14 00:57:16,875 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 524 [2020-10-14 00:57:16,875 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:16,875 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:57:16,875 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 00:57:16,875 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:16,876 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:16,876 INFO L82 PathProgramCache]: Analyzing trace with hash -1286988011, now seen corresponding path program 1 times [2020-10-14 00:57:16,876 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:16,876 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1213669148] [2020-10-14 00:57:16,876 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:16,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:16,937 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:16,989 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:17,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:18,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:18,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:18,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:19,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:21,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:21,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 545 [2020-10-14 00:57:21,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 00:57:21,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5033 [2020-10-14 00:57:21,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:21,956 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:21,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:21,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 114 [2020-10-14 00:57:21,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 00:57:21,957 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:22,136 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:22,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:22,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:22,141 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:22,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:22,144 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:22,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:22,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:57:22,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:22,145 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:22,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:22,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:22,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:22,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:22,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:22,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:22,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:22,243 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:22,243 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 00:57:22,243 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:22,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 00:57:22,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:22,244 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:22,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:22,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:22,250 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 00:57:22,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:22,258 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:22,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:22,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 00:57:22,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:22,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 00:57:22,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:22,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:22,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:22,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:22,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:22,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:57:22,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:22,304 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:22,311 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:22,312 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:57:22,312 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:22,312 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 00:57:22,312 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:22,312 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:22,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:22,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:22,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 00:57:22,313 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:22,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-14 00:57:22,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:22,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:22,377 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:22,377 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 00:57:22,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:22,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-14 00:57:22,378 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:22,378 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:22,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:22,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:22,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 00:57:22,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:22,424 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 00:57:22,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:22,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:22,496 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:22,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 00:57:22,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:22,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-14 00:57:22,496 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:22,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 00:57:22,497 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:22,497 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:22,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 183 [2020-10-14 00:57:22,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:22,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:22,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:22,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 00:57:22,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:22,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 87 [2020-10-14 00:57:22,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:22,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:22,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 00:57:22,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:22,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:22,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 323 [2020-10-14 00:57:22,699 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:22,705 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:22,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:22,721 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:57:22,721 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:22,721 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 00:57:22,721 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:22,721 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:22,721 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:57:22,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:22,722 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:22,946 INFO L134 CoverageAnalysis]: Checked inductivity of 851 backedges. 409 proven. 47 refuted. 0 times theorem prover too weak. 395 trivial. 0 not checked. [2020-10-14 00:57:22,946 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1213669148] [2020-10-14 00:57:22,947 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:22,947 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:57:22,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [931368782] [2020-10-14 00:57:22,948 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:57:22,948 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:22,948 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:57:22,948 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:22,948 INFO L87 Difference]: Start difference. First operand 28534 states and 34880 transitions. Second operand 7 states. [2020-10-14 00:57:23,333 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-14 00:57:24,640 WARN L193 SmtUtils]: Spent 130.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:57:26,720 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:26,721 INFO L93 Difference]: Finished difference Result 58013 states and 74551 transitions. [2020-10-14 00:57:26,721 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-14 00:57:26,721 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 523 [2020-10-14 00:57:26,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:26,798 INFO L225 Difference]: With dead ends: 58013 [2020-10-14 00:57:26,798 INFO L226 Difference]: Without dead ends: 34508 [2020-10-14 00:57:26,827 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 26 GetRequests, 17 SyntacticMatches, 1 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=33, Invalid=57, Unknown=0, NotChecked=0, Total=90 [2020-10-14 00:57:26,851 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34508 states. [2020-10-14 00:57:27,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34508 to 32582. [2020-10-14 00:57:27,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32582 states. [2020-10-14 00:57:27,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32582 states to 32582 states and 40109 transitions. [2020-10-14 00:57:27,354 INFO L78 Accepts]: Start accepts. Automaton has 32582 states and 40109 transitions. Word has length 523 [2020-10-14 00:57:27,354 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:27,354 INFO L479 AbstractCegarLoop]: Abstraction has 32582 states and 40109 transitions. [2020-10-14 00:57:27,354 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:27,354 INFO L276 IsEmpty]: Start isEmpty. Operand 32582 states and 40109 transitions. [2020-10-14 00:57:27,391 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 563 [2020-10-14 00:57:27,391 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:27,392 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:57:27,392 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 00:57:27,392 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:27,392 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:27,392 INFO L82 PathProgramCache]: Analyzing trace with hash 1208765039, now seen corresponding path program 1 times [2020-10-14 00:57:27,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:27,393 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1993207008] [2020-10-14 00:57:27,393 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:27,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:27,457 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:27,510 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:27,646 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:27,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:27,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:30,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:30,817 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:31,345 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:32,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:32,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 586 [2020-10-14 00:57:32,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 00:57:32,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5022 [2020-10-14 00:57:32,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:32,464 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 33 [2020-10-14 00:57:32,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 00:57:32,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:32,650 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:32,651 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:32,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:32,656 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:32,660 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:32,660 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:32,660 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:32,660 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:57:32,660 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:32,660 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:32,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:32,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:32,661 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:32,661 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:32,745 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:32,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:32,758 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:32,778 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:32,779 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 00:57:32,779 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:32,779 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 00:57:32,779 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:32,779 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:32,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:32,779 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:32,780 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 00:57:32,780 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:32,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 00:57:32,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:32,815 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:33,031 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:33,031 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 00:57:33,031 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:33,031 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 227 [2020-10-14 00:57:33,032 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:33,032 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:33,032 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 00:57:33,032 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:33,088 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 98 [2020-10-14 00:57:33,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:33,098 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:33,107 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:33,107 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 00:57:33,108 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:33,108 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 00:57:33,108 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:33,108 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:33,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:33,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 00:57:33,108 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:33,108 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:33,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-10-14 00:57:33,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:33,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:33,141 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:33,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 00:57:33,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:33,142 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 00:57:33,142 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:33,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:33,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:33,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 00:57:33,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:33,142 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:33,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-14 00:57:33,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:33,158 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:33,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:33,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 00:57:33,167 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:33,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:57:33,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:33,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:33,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:33,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 00:57:33,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:33,167 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:33,172 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-14 00:57:33,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:33,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:33,221 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:33,222 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 00:57:33,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:33,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 00:57:33,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:33,222 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:33,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:33,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 00:57:33,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:33,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:33,238 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-10-14 00:57:33,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:33,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:33,357 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:33,358 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 00:57:33,358 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:33,358 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 00:57:33,358 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:33,358 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:33,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:33,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 00:57:33,359 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:33,359 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:33,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 362 [2020-10-14 00:57:33,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:33,414 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:33,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:33,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:57:33,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:33,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-14 00:57:33,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:33,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:57:33,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:33,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:33,691 INFO L134 CoverageAnalysis]: Checked inductivity of 1120 backedges. 406 proven. 209 refuted. 0 times theorem prover too weak. 505 trivial. 0 not checked. [2020-10-14 00:57:33,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1993207008] [2020-10-14 00:57:33,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:33,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:57:33,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1559930709] [2020-10-14 00:57:33,692 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:57:33,692 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:33,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:57:33,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:33,693 INFO L87 Difference]: Start difference. First operand 32582 states and 40109 transitions. Second operand 7 states. [2020-10-14 00:57:33,848 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:57:34,412 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 00:57:36,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:36,408 INFO L93 Difference]: Finished difference Result 62554 states and 77106 transitions. [2020-10-14 00:57:36,409 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:57:36,409 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 562 [2020-10-14 00:57:36,409 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:36,470 INFO L225 Difference]: With dead ends: 62554 [2020-10-14 00:57:36,471 INFO L226 Difference]: Without dead ends: 34959 [2020-10-14 00:57:36,501 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:57:36,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34959 states. [2020-10-14 00:57:36,929 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34959 to 34887. [2020-10-14 00:57:36,929 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34887 states. [2020-10-14 00:57:36,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34887 states to 34887 states and 42858 transitions. [2020-10-14 00:57:36,978 INFO L78 Accepts]: Start accepts. Automaton has 34887 states and 42858 transitions. Word has length 562 [2020-10-14 00:57:36,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:36,978 INFO L479 AbstractCegarLoop]: Abstraction has 34887 states and 42858 transitions. [2020-10-14 00:57:36,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:36,978 INFO L276 IsEmpty]: Start isEmpty. Operand 34887 states and 42858 transitions. [2020-10-14 00:57:37,021 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 608 [2020-10-14 00:57:37,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:37,022 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:57:37,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 00:57:37,022 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:37,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:37,022 INFO L82 PathProgramCache]: Analyzing trace with hash 375376611, now seen corresponding path program 1 times [2020-10-14 00:57:37,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:37,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972983111] [2020-10-14 00:57:37,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:37,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:37,095 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:37,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:37,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:37,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:37,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:38,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:39,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:42,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:42,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 633 [2020-10-14 00:57:42,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 00:57:42,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5904 [2020-10-14 00:57:42,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:42,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:42,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:42,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 00:57:42,983 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-10-14 00:57:42,984 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:43,175 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:43,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:43,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:43,179 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:43,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:43,182 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:43,182 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:43,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:57:43,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:43,183 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:43,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:43,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:43,265 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:43,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:43,270 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:43,280 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:43,281 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 00:57:43,281 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:43,281 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 00:57:43,281 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:43,281 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:43,281 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:43,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:43,282 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:43,282 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:43,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 00:57:43,298 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:43,308 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:43,348 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:43,349 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 00:57:43,349 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:43,349 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 00:57:43,349 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:43,349 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:43,349 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 00:57:43,350 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:43,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 00:57:43,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:43,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:43,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:43,506 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 00:57:43,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:43,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 116 [2020-10-14 00:57:43,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:43,507 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:43,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 68 [2020-10-14 00:57:43,508 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:43,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-10-14 00:57:43,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:43,575 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:43,584 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:43,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 00:57:43,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:43,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 00:57:43,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:43,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 00:57:43,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:43,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:43,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-14 00:57:43,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:43,608 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:43,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:43,622 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 00:57:43,622 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:43,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 00:57:43,623 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:43,623 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 00:57:43,623 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:43,623 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:43,631 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 192 [2020-10-14 00:57:43,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:43,640 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:43,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:43,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 00:57:43,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:43,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 00:57:43,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:43,649 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:43,649 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:43,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 00:57:43,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:43,650 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:43,656 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 210 [2020-10-14 00:57:43,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:43,695 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:43,722 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:43,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 00:57:43,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:43,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 00:57:43,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:43,723 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:43,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:43,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 00:57:43,723 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:43,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:43,738 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 267 [2020-10-14 00:57:43,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:43,809 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:43,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:43,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 00:57:43,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:43,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 00:57:43,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:43,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:43,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:43,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 00:57:43,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:43,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:43,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2020-10-14 00:57:43,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:43,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:43,949 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:43,949 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:57:43,949 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:43,949 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 00:57:43,950 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:43,950 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:43,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:43,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:57:43,950 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:43,950 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:44,217 INFO L134 CoverageAnalysis]: Checked inductivity of 1421 backedges. 519 proven. 209 refuted. 0 times theorem prover too weak. 693 trivial. 0 not checked. [2020-10-14 00:57:44,218 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972983111] [2020-10-14 00:57:44,218 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:44,218 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:57:44,218 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [337051721] [2020-10-14 00:57:44,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:57:44,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:44,219 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:57:44,219 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:44,219 INFO L87 Difference]: Start difference. First operand 34887 states and 42858 transitions. Second operand 7 states. [2020-10-14 00:57:44,736 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:57:45,193 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:57:48,721 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:48,721 INFO L93 Difference]: Finished difference Result 67850 states and 87502 transitions. [2020-10-14 00:57:48,722 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:57:48,722 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 607 [2020-10-14 00:57:48,722 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:48,810 INFO L225 Difference]: With dead ends: 67850 [2020-10-14 00:57:48,810 INFO L226 Difference]: Without dead ends: 37740 [2020-10-14 00:57:48,848 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:57:48,875 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37740 states. [2020-10-14 00:57:49,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37740 to 36609. [2020-10-14 00:57:49,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 36609 states. [2020-10-14 00:57:49,622 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 36609 states to 36609 states and 44858 transitions. [2020-10-14 00:57:49,622 INFO L78 Accepts]: Start accepts. Automaton has 36609 states and 44858 transitions. Word has length 607 [2020-10-14 00:57:49,623 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:49,623 INFO L479 AbstractCegarLoop]: Abstraction has 36609 states and 44858 transitions. [2020-10-14 00:57:49,623 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:49,623 INFO L276 IsEmpty]: Start isEmpty. Operand 36609 states and 44858 transitions. [2020-10-14 00:57:49,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 609 [2020-10-14 00:57:49,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:49,667 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:57:49,667 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-14 00:57:49,668 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:49,668 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:49,668 INFO L82 PathProgramCache]: Analyzing trace with hash -1793785725, now seen corresponding path program 1 times [2020-10-14 00:57:49,668 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:49,668 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1364877355] [2020-10-14 00:57:49,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:49,717 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:49,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:49,840 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:50,018 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:50,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:50,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:54,752 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:54,752 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 628 [2020-10-14 00:57:54,752 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:57:54,752 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5027 [2020-10-14 00:57:54,752 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:54,753 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:54,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:54,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 00:57:54,753 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 138 [2020-10-14 00:57:54,753 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:54,958 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:54,959 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:54,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:54,964 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:54,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:54,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:54,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:54,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-14 00:57:54,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:54,967 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:54,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:54,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:54,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:54,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:55,044 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:55,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:55,048 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:55,057 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:55,057 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 00:57:55,058 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:55,058 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 00:57:55,058 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:55,058 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:55,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:55,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:55,058 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:55,058 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:55,064 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 00:57:55,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:55,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:55,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:55,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 00:57:55,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:55,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 51 [2020-10-14 00:57:55,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:55,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:55,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:55,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:55,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 40 [2020-10-14 00:57:55,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:55,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 76 [2020-10-14 00:57:55,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:55,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:55,430 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:55,430 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-14 00:57:55,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:55,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-10-14 00:57:55,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:55,431 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:55,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:55,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:55,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-14 00:57:55,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:55,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 211 [2020-10-14 00:57:55,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:55,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:55,585 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:55,585 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 00:57:55,585 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:55,585 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-14 00:57:55,585 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:55,586 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:55,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:55,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 00:57:55,586 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:55,586 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:55,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-10-14 00:57:55,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:55,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:55,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:55,728 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 00:57:55,728 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:55,728 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 90 [2020-10-14 00:57:55,728 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:55,728 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:55,728 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:55,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 00:57:55,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:55,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:55,777 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 408 [2020-10-14 00:57:55,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:55,796 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:55,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:55,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:57:55,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:55,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 00:57:55,814 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:55,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:55,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:55,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:57:55,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:55,815 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:56,085 INFO L134 CoverageAnalysis]: Checked inductivity of 1049 backedges. 505 proven. 219 refuted. 0 times theorem prover too weak. 325 trivial. 0 not checked. [2020-10-14 00:57:56,085 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1364877355] [2020-10-14 00:57:56,085 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:56,085 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:57:56,086 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1280786104] [2020-10-14 00:57:56,086 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:57:56,086 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:56,087 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:57:56,087 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:56,087 INFO L87 Difference]: Start difference. First operand 36609 states and 44858 transitions. Second operand 7 states. [2020-10-14 00:57:56,236 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:57:57,055 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:57:59,044 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:59,044 INFO L93 Difference]: Finished difference Result 67846 states and 83254 transitions. [2020-10-14 00:57:59,045 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:57:59,045 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 608 [2020-10-14 00:57:59,045 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:59,102 INFO L225 Difference]: With dead ends: 67846 [2020-10-14 00:57:59,102 INFO L226 Difference]: Without dead ends: 32762 [2020-10-14 00:57:59,134 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:57:59,156 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 32762 states. [2020-10-14 00:57:59,473 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 32762 to 31444. [2020-10-14 00:57:59,473 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 31444 states. [2020-10-14 00:57:59,511 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 31444 states to 31444 states and 36447 transitions. [2020-10-14 00:57:59,511 INFO L78 Accepts]: Start accepts. Automaton has 31444 states and 36447 transitions. Word has length 608 [2020-10-14 00:57:59,512 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:59,512 INFO L479 AbstractCegarLoop]: Abstraction has 31444 states and 36447 transitions. [2020-10-14 00:57:59,512 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:59,512 INFO L276 IsEmpty]: Start isEmpty. Operand 31444 states and 36447 transitions. [2020-10-14 00:57:59,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 748 [2020-10-14 00:57:59,545 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:59,546 INFO L422 BasicCegarLoop]: trace histogram [11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 11, 10, 10, 10, 10, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 00:57:59,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2020-10-14 00:57:59,546 INFO L427 AbstractCegarLoop]: === Iteration 20 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:59,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:59,547 INFO L82 PathProgramCache]: Analyzing trace with hash 1818982402, now seen corresponding path program 1 times [2020-10-14 00:57:59,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:59,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1551278589] [2020-10-14 00:57:59,547 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:59,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:59,674 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:59,765 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:59,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:00,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:00,346 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:00,504 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:01,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:04,677 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:04,677 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 775 [2020-10-14 00:58:04,677 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 7 [2020-10-14 00:58:04,677 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5040 [2020-10-14 00:58:04,677 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:04,678 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 122 [2020-10-14 00:58:04,678 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 00:58:04,678 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:04,886 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:04,887 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:04,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:04,891 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:04,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:04,895 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:04,895 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:04,895 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:58:04,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:04,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:04,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:04,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:04,896 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:04,896 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:04,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:04,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:04,977 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:04,985 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:04,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-10-14 00:58:04,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:04,986 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 00:58:04,986 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:04,986 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:04,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:04,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:04,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:04,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:04,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2020-10-14 00:58:05,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:05,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:05,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:05,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 90 [2020-10-14 00:58:05,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:05,112 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-14 00:58:05,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:05,112 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:05,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:05,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:05,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-14 00:58:05,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:05,137 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-10-14 00:58:05,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:05,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:05,324 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:05,324 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 00:58:05,324 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:05,324 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-14 00:58:05,324 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:05,325 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:05,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:05,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:58:05,325 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 00:58:05,325 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:05,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 216 [2020-10-14 00:58:05,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:05,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:05,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:05,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 00:58:05,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:05,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 00:58:05,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:05,506 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-14 00:58:05,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:05,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:05,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2020-10-14 00:58:05,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:05,531 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:05,539 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:05,540 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 00:58:05,540 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:05,540 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:58:05,540 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:05,540 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:05,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:05,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 00:58:05,540 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:05,540 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:05,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 302 [2020-10-14 00:58:05,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:05,558 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:05,572 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:05,572 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 00:58:05,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:05,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 00:58:05,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:05,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:05,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 00:58:05,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:05,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:05,581 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 332 [2020-10-14 00:58:05,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:05,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:05,598 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:05,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 00:58:05,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:05,599 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:58:05,599 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:05,599 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:05,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:05,599 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 00:58:05,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:05,600 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:05,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 350 [2020-10-14 00:58:05,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:05,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:05,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:05,662 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 00:58:05,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:05,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 00:58:05,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:05,662 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:05,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:05,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 00:58:05,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:05,663 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:05,677 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 407 [2020-10-14 00:58:05,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:05,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:05,792 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:05,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 00:58:05,793 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:05,793 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 00:58:05,793 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:05,793 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:05,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:05,793 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 00:58:05,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:05,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:05,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 547 [2020-10-14 00:58:05,852 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:05,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:05,876 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:05,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:58:05,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:05,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-14 00:58:05,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:05,877 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:05,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:05,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:58:05,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:05,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:06,581 INFO L134 CoverageAnalysis]: Checked inductivity of 2057 backedges. 706 proven. 304 refuted. 0 times theorem prover too weak. 1047 trivial. 0 not checked. [2020-10-14 00:58:06,582 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1551278589] [2020-10-14 00:58:06,582 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:58:06,582 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:58:06,582 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1910019861] [2020-10-14 00:58:06,583 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:58:06,583 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:58:06,583 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:58:06,583 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:58:06,583 INFO L87 Difference]: Start difference. First operand 31444 states and 36447 transitions. Second operand 7 states. [2020-10-14 00:58:07,280 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 00:58:07,632 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:58:10,355 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:58:10,356 INFO L93 Difference]: Finished difference Result 63959 states and 77171 transitions. [2020-10-14 00:58:10,356 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-14 00:58:10,356 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 747 [2020-10-14 00:58:10,357 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:58:10,446 INFO L225 Difference]: With dead ends: 63959 [2020-10-14 00:58:10,446 INFO L226 Difference]: Without dead ends: 34915 [2020-10-14 00:58:10,479 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-14 00:58:10,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34915 states. [2020-10-14 00:58:10,938 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34915 to 34183. [2020-10-14 00:58:10,939 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 34183 states. [2020-10-14 00:58:10,982 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 34183 states to 34183 states and 39564 transitions. [2020-10-14 00:58:10,982 INFO L78 Accepts]: Start accepts. Automaton has 34183 states and 39564 transitions. Word has length 747 [2020-10-14 00:58:10,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:58:10,983 INFO L479 AbstractCegarLoop]: Abstraction has 34183 states and 39564 transitions. [2020-10-14 00:58:10,983 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:58:10,983 INFO L276 IsEmpty]: Start isEmpty. Operand 34183 states and 39564 transitions. [2020-10-14 00:58:11,020 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 758 [2020-10-14 00:58:11,021 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:58:11,021 INFO L422 BasicCegarLoop]: trace histogram [12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 12, 11, 11, 11, 11, 11, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-14 00:58:11,022 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2020-10-14 00:58:11,022 INFO L427 AbstractCegarLoop]: === Iteration 21 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:58:11,022 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:58:11,022 INFO L82 PathProgramCache]: Analyzing trace with hash -70908998, now seen corresponding path program 1 times [2020-10-14 00:58:11,023 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:58:11,023 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [210881875] [2020-10-14 00:58:11,023 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:58:11,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:11,139 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:11,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:11,521 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:11,729 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:11,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:12,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:12,502 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:14,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:16,200 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:16,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 787 [2020-10-14 00:58:16,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 8 [2020-10-14 00:58:16,201 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5098 [2020-10-14 00:58:16,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:16,201 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 132 [2020-10-14 00:58:16,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-10-14 00:58:16,202 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:16,455 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:16,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:16,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:16,461 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:16,465 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:16,466 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:16,466 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:16,466 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:58:16,466 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:16,466 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:16,467 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:16,467 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:16,547 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:16,554 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:16,555 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:16,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:16,584 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 00:58:16,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:16,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-10-14 00:58:16,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:16,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:16,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:16,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:16,585 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:16,585 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:16,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 00:58:16,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:16,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:16,626 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:16,627 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:58:16,627 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:16,627 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-14 00:58:16,627 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:16,627 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:16,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:16,627 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:16,628 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:16,628 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:16,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 00:58:16,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:16,644 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:16,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:16,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 00:58:16,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:16,668 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 00:58:16,668 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:16,668 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:16,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:16,668 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:16,669 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 18 [2020-10-14 00:58:16,669 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:16,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 00:58:16,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:16,717 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:16,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:16,878 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-14 00:58:16,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:16,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 176 [2020-10-14 00:58:16,879 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:16,879 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:16,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:16,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:58:16,879 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 00:58:16,879 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:16,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 226 [2020-10-14 00:58:16,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:16,992 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:17,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:17,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 00:58:17,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:17,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 52 [2020-10-14 00:58:17,029 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:17,029 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:17,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:17,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-14 00:58:17,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:17,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:17,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 293 [2020-10-14 00:58:17,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:17,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:18,013 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:18,013 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 00:58:18,014 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:18,014 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 959 [2020-10-14 00:58:18,014 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:18,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 00:58:18,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:18,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:18,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 312 [2020-10-14 00:58:18,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:18,034 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:18,050 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:18,051 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 00:58:18,051 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:18,051 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-14 00:58:18,051 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:18,051 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:18,051 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 00:58:18,052 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:18,052 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:18,060 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 342 [2020-10-14 00:58:18,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:18,068 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:18,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:18,078 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 00:58:18,078 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:18,078 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 00:58:18,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:18,078 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:18,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:18,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 00:58:18,079 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:18,079 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:18,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 360 [2020-10-14 00:58:18,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:18,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:18,134 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:18,135 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 00:58:18,135 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:18,135 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 00:58:18,135 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:18,135 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:18,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 00:58:18,136 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:18,136 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:18,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 417 [2020-10-14 00:58:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:18,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:18,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:18,264 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 00:58:18,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:18,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 81 [2020-10-14 00:58:18,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:18,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:18,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:18,265 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 00:58:18,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:18,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:18,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 557 [2020-10-14 00:58:18,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:18,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:18,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:18,332 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 35 [2020-10-14 00:58:18,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:18,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 00:58:18,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:18,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:18,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:18,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 32 [2020-10-14 00:58:18,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:18,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:18,691 INFO L134 CoverageAnalysis]: Checked inductivity of 2220 backedges. 751 proven. 306 refuted. 0 times theorem prover too weak. 1163 trivial. 0 not checked. [2020-10-14 00:58:18,691 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [210881875] [2020-10-14 00:58:18,691 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:58:18,692 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:58:18,692 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [70645151] [2020-10-14 00:58:18,693 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:58:18,693 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:58:18,693 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:58:18,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:58:18,693 INFO L87 Difference]: Start difference. First operand 34183 states and 39564 transitions. Second operand 7 states. [2020-10-14 00:58:18,916 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:58:20,567 WARN L193 SmtUtils]: Spent 132.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:58:22,512 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:58:22,513 INFO L93 Difference]: Finished difference Result 69424 states and 83444 transitions. [2020-10-14 00:58:22,513 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:58:22,513 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 757 [2020-10-14 00:58:22,514 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:58:22,591 INFO L225 Difference]: With dead ends: 69424 [2020-10-14 00:58:22,591 INFO L226 Difference]: Without dead ends: 35711 [2020-10-14 00:58:22,634 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:58:22,663 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 35711 states. [2020-10-14 00:58:23,131 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 35711 to 33530. [2020-10-14 00:58:23,131 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33530 states. [2020-10-14 00:58:23,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33530 states to 33530 states and 38598 transitions. [2020-10-14 00:58:23,436 INFO L78 Accepts]: Start accepts. Automaton has 33530 states and 38598 transitions. Word has length 757 [2020-10-14 00:58:23,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:58:23,436 INFO L479 AbstractCegarLoop]: Abstraction has 33530 states and 38598 transitions. [2020-10-14 00:58:23,436 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:58:23,437 INFO L276 IsEmpty]: Start isEmpty. Operand 33530 states and 38598 transitions. [2020-10-14 00:58:23,473 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 768 [2020-10-14 00:58:23,474 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:58:23,474 INFO L422 BasicCegarLoop]: trace histogram [13, 13, 13, 13, 13, 13, 13, 13, 12, 12, 12, 12, 12, 12, 12, 11, 11, 10, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:58:23,474 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2020-10-14 00:58:23,474 INFO L427 AbstractCegarLoop]: === Iteration 22 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:58:23,475 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:58:23,475 INFO L82 PathProgramCache]: Analyzing trace with hash -599429782, now seen corresponding path program 1 times [2020-10-14 00:58:23,475 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:58:23,475 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761574743] [2020-10-14 00:58:23,475 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:58:23,544 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:23,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:23,675 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:23,896 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:24,077 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:24,274 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:24,429 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:24,610 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:25,489 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:28,053 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:28,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:28,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 799 [2020-10-14 00:58:28,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 9 [2020-10-14 00:58:28,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5005 [2020-10-14 00:58:28,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:28,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:28,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-10-14 00:58:28,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-14 00:58:28,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:28,774 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:28,775 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:28,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:28,779 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:28,782 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:28,782 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:28,782 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:28,783 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:58:28,783 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:28,783 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:28,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:28,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:28,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:28,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:28,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:28,875 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:28,877 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:28,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:28,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 80 [2020-10-14 00:58:28,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:28,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 00:58:28,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:28,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:28,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:28,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:28,922 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-10-14 00:58:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:28,925 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:28,931 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:28,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:58:28,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:28,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:58:28,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:28,931 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:28,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:28,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:28,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:28,932 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:28,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 103 [2020-10-14 00:58:28,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:28,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:28,947 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:28,947 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 00:58:28,947 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:28,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 00:58:28,948 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:28,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:28,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:28,948 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:28,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-14 00:58:28,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:28,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:28,968 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:28,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:58:28,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:28,969 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:58:28,969 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:28,969 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:28,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:28,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:28,969 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 00:58:28,969 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:28,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-10-14 00:58:29,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:29,021 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:29,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:29,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 99 [2020-10-14 00:58:29,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:29,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 162 [2020-10-14 00:58:29,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:29,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:58:29,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 99 [2020-10-14 00:58:29,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:29,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 236 [2020-10-14 00:58:29,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:29,375 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:29,407 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:29,407 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 00:58:29,408 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:29,408 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 00:58:29,408 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:29,408 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:29,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:29,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 65 [2020-10-14 00:58:29,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:29,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:29,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 303 [2020-10-14 00:58:29,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:29,435 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:29,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:29,445 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 00:58:29,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:29,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-10-14 00:58:29,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:29,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:29,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:29,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 00:58:29,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:29,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:29,450 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 322 [2020-10-14 00:58:29,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:29,465 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:29,479 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:29,479 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 31 [2020-10-14 00:58:29,480 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:29,480 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 00:58:29,480 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:29,480 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:29,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:29,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 28 [2020-10-14 00:58:29,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:29,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:29,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 352 [2020-10-14 00:58:29,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:29,497 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:29,507 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:29,507 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 19 [2020-10-14 00:58:29,507 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:29,508 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-10-14 00:58:29,508 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:29,508 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:29,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:29,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 16 [2020-10-14 00:58:29,508 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:29,509 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:29,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 370 [2020-10-14 00:58:29,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:29,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:29,573 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:29,574 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 58 [2020-10-14 00:58:29,574 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:29,574 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 00:58:29,574 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:29,574 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:29,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:29,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 00:58:29,575 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:29,575 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:29,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 427 [2020-10-14 00:58:29,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:29,668 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:29,736 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:29,736 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 141 [2020-10-14 00:58:29,736 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:29,736 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 88 [2020-10-14 00:58:29,736 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:29,736 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:29,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:29,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 138 [2020-10-14 00:58:29,737 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:29,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0