/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_label55.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-14 00:56:52,289 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-14 00:56:52,292 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-14 00:56:52,316 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-14 00:56:52,317 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-14 00:56:52,318 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-14 00:56:52,319 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-14 00:56:52,321 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-14 00:56:52,323 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-14 00:56:52,323 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-14 00:56:52,324 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-14 00:56:52,326 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-14 00:56:52,326 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-14 00:56:52,327 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-14 00:56:52,328 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-14 00:56:52,329 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-14 00:56:52,330 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-14 00:56:52,331 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-14 00:56:52,333 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-14 00:56:52,335 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-14 00:56:52,337 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-14 00:56:52,338 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-14 00:56:52,339 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-14 00:56:52,340 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-14 00:56:52,343 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-14 00:56:52,344 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-14 00:56:52,344 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-14 00:56:52,345 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-14 00:56:52,346 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-14 00:56:52,347 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-14 00:56:52,347 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-14 00:56:52,348 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-14 00:56:52,349 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-14 00:56:52,350 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-14 00:56:52,351 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-14 00:56:52,351 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-14 00:56:52,352 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-14 00:56:52,352 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-14 00:56:52,353 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-14 00:56:52,358 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-14 00:56:52,359 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-14 00:56:52,361 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 00:56:52,402 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-14 00:56:52,402 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-14 00:56:52,404 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-14 00:56:52,404 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-14 00:56:52,404 INFO L138 SettingsManager]: * Use SBE=true [2020-10-14 00:56:52,405 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-14 00:56:52,405 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-14 00:56:52,405 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-14 00:56:52,405 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-14 00:56:52,406 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-14 00:56:52,407 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-14 00:56:52,407 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-14 00:56:52,407 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-14 00:56:52,407 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-14 00:56:52,408 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-14 00:56:52,408 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-14 00:56:52,408 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-14 00:56:52,408 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-14 00:56:52,408 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-14 00:56:52,409 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-14 00:56:52,409 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-14 00:56:52,409 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-14 00:56:52,409 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-14 00:56:52,410 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-14 00:56:52,410 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-14 00:56:52,410 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-14 00:56:52,410 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-14 00:56:52,410 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-14 00:56:52,410 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-14 00:56:52,411 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 00:56:52,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-14 00:56:52,740 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-14 00:56:52,752 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-14 00:56:52,753 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-14 00:56:52,753 INFO L275 PluginConnector]: CDTParser initialized [2020-10-14 00:56:52,754 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem03_label55.c [2020-10-14 00:56:52,815 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d51570be/3c88a4e903f240a7b9b1f9880bd7f542/FLAGba86e4860 [2020-10-14 00:56:53,443 INFO L306 CDTParser]: Found 1 translation units. [2020-10-14 00:56:53,444 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem03_label55.c [2020-10-14 00:56:53,460 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d51570be/3c88a4e903f240a7b9b1f9880bd7f542/FLAGba86e4860 [2020-10-14 00:56:53,643 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/2d51570be/3c88a4e903f240a7b9b1f9880bd7f542 [2020-10-14 00:56:53,652 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-14 00:56:53,654 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-14 00:56:53,655 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-14 00:56:53,655 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-14 00:56:53,659 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-14 00:56:53,660 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:56:53" (1/1) ... [2020-10-14 00:56:53,663 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@72dcb5c4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:56:53, skipping insertion in model container [2020-10-14 00:56:53,663 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 14.10 12:56:53" (1/1) ... [2020-10-14 00:56:53,672 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-14 00:56:53,758 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-14 00:56:54,565 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:56:54,571 INFO L203 MainTranslator]: Completed pre-run [2020-10-14 00:56:54,858 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-14 00:56:54,882 INFO L208 MainTranslator]: Completed translation [2020-10-14 00:56:54,883 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:56:54 WrapperNode [2020-10-14 00:56:54,884 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-14 00:56:54,885 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-14 00:56:54,885 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-14 00:56:54,885 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-14 00:56:54,903 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:56:54" (1/1) ... [2020-10-14 00:56:54,905 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:56:54" (1/1) ... [2020-10-14 00:56:54,945 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:56:54" (1/1) ... [2020-10-14 00:56:54,945 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:56:54" (1/1) ... [2020-10-14 00:56:55,012 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:56:54" (1/1) ... [2020-10-14 00:56:55,026 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:56:54" (1/1) ... [2020-10-14 00:56:55,051 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:56:54" (1/1) ... [2020-10-14 00:56:55,066 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-14 00:56:55,067 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-14 00:56:55,067 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-14 00:56:55,067 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-14 00:56:55,069 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:56:54" (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 00:56:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-14 00:56:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-14 00:56:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-14 00:56:55,138 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-14 00:56:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-14 00:56:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-14 00:56:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-14 00:56:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-14 00:56:55,139 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-14 00:56:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-14 00:56:55,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-14 00:56:56,953 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-14 00:56:56,953 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-14 00:56:56,961 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:56:56 BoogieIcfgContainer [2020-10-14 00:56:56,962 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-14 00:56:56,963 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-14 00:56:56,964 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-14 00:56:56,967 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-14 00:56:56,967 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 14.10 12:56:53" (1/3) ... [2020-10-14 00:56:56,968 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5115a45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:56:56, skipping insertion in model container [2020-10-14 00:56:56,968 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 14.10 12:56:54" (2/3) ... [2020-10-14 00:56:56,969 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5115a45f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 14.10 12:56:56, skipping insertion in model container [2020-10-14 00:56:56,969 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 14.10 12:56:56" (3/3) ... [2020-10-14 00:56:56,971 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem03_label55.c [2020-10-14 00:56:56,982 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-14 00:56:56,997 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-14 00:56:57,011 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-14 00:56:57,048 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-14 00:56:57,049 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-14 00:56:57,049 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-14 00:56:57,049 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-14 00:56:57,049 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-14 00:56:57,050 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-14 00:56:57,050 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-14 00:56:57,050 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-14 00:56:57,083 INFO L276 IsEmpty]: Start isEmpty. Operand 311 states. [2020-10-14 00:56:57,106 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-10-14 00:56:57,106 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:56:57,108 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] [2020-10-14 00:56:57,108 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:56:57,114 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:56:57,115 INFO L82 PathProgramCache]: Analyzing trace with hash -137878483, now seen corresponding path program 1 times [2020-10-14 00:56:57,124 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:56:57,125 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1296161577] [2020-10-14 00:56:57,125 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:56:57,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:56:57,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:56:58,486 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:01,398 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:01,398 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 176 [2020-10-14 00:57:01,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:57:01,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3855 [2020-10-14 00:57:01,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:01,405 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:57:01,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:57:01,406 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 170 [2020-10-14 00:57:01,406 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-10-14 00:57:01,834 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:01,836 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:01,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:01,850 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:01,872 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:01,872 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:01,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:01,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-14 00:57:01,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:01,874 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:01,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:01,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:01,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:57:01,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:01,961 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 00:57:01,962 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1296161577] [2020-10-14 00:57:01,964 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:57:01,964 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-14 00:57:01,965 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1997328281] [2020-10-14 00:57:01,971 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-14 00:57:01,971 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:01,987 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-14 00:57:01,988 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-14 00:57:01,990 INFO L87 Difference]: Start difference. First operand 311 states. Second operand 4 states. [2020-10-14 00:57:02,176 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-14 00:57:04,935 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:04,935 INFO L93 Difference]: Finished difference Result 864 states and 1518 transitions. [2020-10-14 00:57:04,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:57:04,938 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 168 [2020-10-14 00:57:04,940 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:04,960 INFO L225 Difference]: With dead ends: 864 [2020-10-14 00:57:04,961 INFO L226 Difference]: Without dead ends: 476 [2020-10-14 00:57:04,970 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 3 SyntacticMatches, 1 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 00:57:04,995 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 476 states. [2020-10-14 00:57:05,064 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 476 to 467. [2020-10-14 00:57:05,065 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 467 states. [2020-10-14 00:57:05,069 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 467 states to 467 states and 721 transitions. [2020-10-14 00:57:05,071 INFO L78 Accepts]: Start accepts. Automaton has 467 states and 721 transitions. Word has length 168 [2020-10-14 00:57:05,072 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:05,072 INFO L479 AbstractCegarLoop]: Abstraction has 467 states and 721 transitions. [2020-10-14 00:57:05,072 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-14 00:57:05,073 INFO L276 IsEmpty]: Start isEmpty. Operand 467 states and 721 transitions. [2020-10-14 00:57:05,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-14 00:57:05,079 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:05,080 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:05,080 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-14 00:57:05,080 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:05,081 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:05,081 INFO L82 PathProgramCache]: Analyzing trace with hash -230913210, now seen corresponding path program 1 times [2020-10-14 00:57:05,081 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:05,082 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [750481149] [2020-10-14 00:57:05,082 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:05,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:05,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:05,291 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:05,397 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:06,251 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:06,716 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:08,095 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:08,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 188 [2020-10-14 00:57:08,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:57:08,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2902 [2020-10-14 00:57:08,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:08,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 19 [2020-10-14 00:57:08,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 168 [2020-10-14 00:57:08,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:08,392 WARN L193 SmtUtils]: Spent 126.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:08,393 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:08,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:08,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:08,403 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:08,403 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:08,403 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:08,403 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:57:08,404 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:08,404 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:08,404 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:08,405 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:08,405 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:08,487 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:08,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:08,495 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:08,501 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:08,510 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:08,510 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:57:08,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:57:08,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 00:57:08,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:08,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:08,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:08,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-10-14 00:57:08,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:08,583 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 4 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:57:08,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [750481149] [2020-10-14 00:57:08,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:08,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:57:08,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1306869491] [2020-10-14 00:57:08,586 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:57:08,586 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:08,587 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:57:08,587 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:57:08,587 INFO L87 Difference]: Start difference. First operand 467 states and 721 transitions. Second operand 5 states. [2020-10-14 00:57:08,869 WARN L193 SmtUtils]: Spent 145.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:57:11,244 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:11,245 INFO L93 Difference]: Finished difference Result 1352 states and 2107 transitions. [2020-10-14 00:57:11,246 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:57:11,247 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 178 [2020-10-14 00:57:11,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:11,257 INFO L225 Difference]: With dead ends: 1352 [2020-10-14 00:57:11,258 INFO L226 Difference]: Without dead ends: 470 [2020-10-14 00:57:11,266 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 6 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 00:57:11,267 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2020-10-14 00:57:11,321 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 466. [2020-10-14 00:57:11,322 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 466 states. [2020-10-14 00:57:11,325 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 466 states to 466 states and 719 transitions. [2020-10-14 00:57:11,329 INFO L78 Accepts]: Start accepts. Automaton has 466 states and 719 transitions. Word has length 178 [2020-10-14 00:57:11,330 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:11,330 INFO L479 AbstractCegarLoop]: Abstraction has 466 states and 719 transitions. [2020-10-14 00:57:11,330 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:57:11,330 INFO L276 IsEmpty]: Start isEmpty. Operand 466 states and 719 transitions. [2020-10-14 00:57:11,341 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 183 [2020-10-14 00:57:11,342 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:11,342 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:57:11,342 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-14 00:57:11,342 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:11,342 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:11,343 INFO L82 PathProgramCache]: Analyzing trace with hash -224644811, now seen corresponding path program 1 times [2020-10-14 00:57:11,343 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:11,343 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1402575093] [2020-10-14 00:57:11,343 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:11,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:11,530 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:11,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:14,341 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:14,341 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-10-14 00:57:14,341 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:57:14,341 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2868 [2020-10-14 00:57:14,342 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:14,342 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:14,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:14,342 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 24 [2020-10-14 00:57:14,343 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-14 00:57:14,343 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:14,572 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:14,573 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:14,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:14,580 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:14,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:14,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:14,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:14,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-14 00:57:14,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:14,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:14,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:14,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:14,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:14,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:14,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:14,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:14,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:14,766 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:14,766 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 00:57:14,767 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:14,767 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 00:57:14,767 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:14,768 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:14,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:14,768 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:14,769 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-10-14 00:57:14,769 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:14,874 INFO L134 CoverageAnalysis]: Checked inductivity of 11 backedges. 10 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:57:14,875 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1402575093] [2020-10-14 00:57:14,875 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:14,875 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:57:14,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1152342771] [2020-10-14 00:57:14,876 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:57:14,877 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:14,877 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:57:14,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:57:14,878 INFO L87 Difference]: Start difference. First operand 466 states and 719 transitions. Second operand 5 states. [2020-10-14 00:57:15,260 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 128 [2020-10-14 00:57:17,775 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:17,775 INFO L93 Difference]: Finished difference Result 1360 states and 2126 transitions. [2020-10-14 00:57:17,776 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:57:17,776 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 182 [2020-10-14 00:57:17,777 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:17,782 INFO L225 Difference]: With dead ends: 1360 [2020-10-14 00:57:17,783 INFO L226 Difference]: Without dead ends: 900 [2020-10-14 00:57:17,785 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 6 SyntacticMatches, 1 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 00:57:17,787 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 900 states. [2020-10-14 00:57:17,830 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 900 to 894. [2020-10-14 00:57:17,831 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 894 states. [2020-10-14 00:57:17,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 894 states to 894 states and 1299 transitions. [2020-10-14 00:57:17,840 INFO L78 Accepts]: Start accepts. Automaton has 894 states and 1299 transitions. Word has length 182 [2020-10-14 00:57:17,842 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:17,842 INFO L479 AbstractCegarLoop]: Abstraction has 894 states and 1299 transitions. [2020-10-14 00:57:17,842 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:57:17,842 INFO L276 IsEmpty]: Start isEmpty. Operand 894 states and 1299 transitions. [2020-10-14 00:57:17,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-10-14 00:57:17,848 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:17,849 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1] [2020-10-14 00:57:17,849 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-14 00:57:17,849 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:17,850 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:17,850 INFO L82 PathProgramCache]: Analyzing trace with hash 1813668049, now seen corresponding path program 1 times [2020-10-14 00:57:17,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:17,850 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [263978178] [2020-10-14 00:57:17,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:17,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:17,931 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:18,708 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:18,708 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-10-14 00:57:18,708 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:18,708 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 797 [2020-10-14 00:57:18,709 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:18,709 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-14 00:57:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-14 00:57:18,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 22 [2020-10-14 00:57:18,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:18,869 WARN L193 SmtUtils]: Spent 114.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:18,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:18,878 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:18,882 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:18,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:18,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:18,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:18,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-14 00:57:18,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:18,902 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:18,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:18,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:18,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-14 00:57:18,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:19,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:19,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:19,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:19,090 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:19,090 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:57:19,091 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:19,091 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-14 00:57:19,091 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:19,092 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:19,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:19,092 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:19,093 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 00:57:19,093 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:19,199 INFO L134 CoverageAnalysis]: Checked inductivity of 13 backedges. 13 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:57:19,200 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [263978178] [2020-10-14 00:57:19,200 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-14 00:57:19,200 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-14 00:57:19,201 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [643376118] [2020-10-14 00:57:19,201 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 00:57:19,201 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:19,202 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 00:57:19,202 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:57:19,202 INFO L87 Difference]: Start difference. First operand 894 states and 1299 transitions. Second operand 8 states. [2020-10-14 00:57:19,402 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:57:19,795 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:57:20,237 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:57:23,636 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:23,637 INFO L93 Difference]: Finished difference Result 3321 states and 4973 transitions. [2020-10-14 00:57:23,638 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2020-10-14 00:57:23,638 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 184 [2020-10-14 00:57:23,639 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:23,652 INFO L225 Difference]: With dead ends: 3321 [2020-10-14 00:57:23,653 INFO L226 Difference]: Without dead ends: 2433 [2020-10-14 00:57:23,656 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 15 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-14 00:57:23,659 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2433 states. [2020-10-14 00:57:23,734 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2433 to 2408. [2020-10-14 00:57:23,734 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2408 states. [2020-10-14 00:57:23,744 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2408 states to 2408 states and 3444 transitions. [2020-10-14 00:57:23,744 INFO L78 Accepts]: Start accepts. Automaton has 2408 states and 3444 transitions. Word has length 184 [2020-10-14 00:57:23,744 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:23,745 INFO L479 AbstractCegarLoop]: Abstraction has 2408 states and 3444 transitions. [2020-10-14 00:57:23,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 00:57:23,745 INFO L276 IsEmpty]: Start isEmpty. Operand 2408 states and 3444 transitions. [2020-10-14 00:57:23,752 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 186 [2020-10-14 00:57:23,752 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:23,752 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1] [2020-10-14 00:57:23,752 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-14 00:57:23,753 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:23,753 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:23,753 INFO L82 PathProgramCache]: Analyzing trace with hash -1810360838, now seen corresponding path program 1 times [2020-10-14 00:57:23,753 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:23,754 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1358571017] [2020-10-14 00:57:23,754 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:23,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:23,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:24,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:25,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:25,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 195 [2020-10-14 00:57:25,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-14 00:57:25,640 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1857 [2020-10-14 00:57:25,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:25,641 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:25,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:25,641 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 27 [2020-10-14 00:57:25,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-14 00:57:25,642 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:25,866 WARN L193 SmtUtils]: Spent 104.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:25,867 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:25,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:25,871 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:25,875 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:25,876 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:25,876 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:25,876 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:57:25,876 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:25,876 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:25,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:25,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:25,877 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:25,877 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:25,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:25,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:25,963 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:26,001 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:26,003 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 00:57:26,006 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:26,006 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 42 [2020-10-14 00:57:26,007 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:26,007 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:26,007 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:26,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:26,008 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 12 [2020-10-14 00:57:26,008 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:26,106 INFO L134 CoverageAnalysis]: Checked inductivity of 14 backedges. 13 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:57:26,107 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1358571017] [2020-10-14 00:57:26,107 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:26,107 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:57:26,108 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1982980621] [2020-10-14 00:57:26,108 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:57:26,109 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:26,109 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:57:26,109 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:57:26,110 INFO L87 Difference]: Start difference. First operand 2408 states and 3444 transitions. Second operand 5 states. [2020-10-14 00:57:26,396 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:57:29,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:29,283 INFO L93 Difference]: Finished difference Result 7185 states and 10503 transitions. [2020-10-14 00:57:29,283 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:57:29,283 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 185 [2020-10-14 00:57:29,284 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:29,312 INFO L225 Difference]: With dead ends: 7185 [2020-10-14 00:57:29,313 INFO L226 Difference]: Without dead ends: 4783 [2020-10-14 00:57:29,320 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 00:57:29,327 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 4783 states. [2020-10-14 00:57:29,447 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 4783 to 4747. [2020-10-14 00:57:29,447 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4747 states. [2020-10-14 00:57:29,466 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4747 states to 4747 states and 6882 transitions. [2020-10-14 00:57:29,466 INFO L78 Accepts]: Start accepts. Automaton has 4747 states and 6882 transitions. Word has length 185 [2020-10-14 00:57:29,467 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:29,467 INFO L479 AbstractCegarLoop]: Abstraction has 4747 states and 6882 transitions. [2020-10-14 00:57:29,467 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:57:29,467 INFO L276 IsEmpty]: Start isEmpty. Operand 4747 states and 6882 transitions. [2020-10-14 00:57:29,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 188 [2020-10-14 00:57:29,480 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:29,481 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1] [2020-10-14 00:57:29,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-14 00:57:29,481 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:29,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:29,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1555240662, now seen corresponding path program 1 times [2020-10-14 00:57:29,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:29,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1899020176] [2020-10-14 00:57:29,482 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:29,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:29,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:29,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:31,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:32,009 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:32,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 197 [2020-10-14 00:57:32,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:57:32,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2495 [2020-10-14 00:57:32,010 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:32,010 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:32,010 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:32,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 29 [2020-10-14 00:57:32,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-14 00:57:32,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:32,219 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:32,220 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:32,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:32,225 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:32,230 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:32,230 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:32,230 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:32,230 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:57:32,230 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:32,231 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:32,231 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:32,231 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:32,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:32,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:32,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:32,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:32,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 00:57:32,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:32,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-14 00:57:32,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:32,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:32,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:32,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:32,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-10-14 00:57:32,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:32,426 INFO L134 CoverageAnalysis]: Checked inductivity of 16 backedges. 15 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-14 00:57:32,427 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1899020176] [2020-10-14 00:57:32,427 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:32,427 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:57:32,427 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [743040402] [2020-10-14 00:57:32,428 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:57:32,428 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:32,428 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:57:32,429 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:57:32,429 INFO L87 Difference]: Start difference. First operand 4747 states and 6882 transitions. Second operand 5 states. [2020-10-14 00:57:32,688 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:57:35,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:35,064 INFO L93 Difference]: Finished difference Result 7791 states and 11407 transitions. [2020-10-14 00:57:35,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:57:35,065 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 187 [2020-10-14 00:57:35,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:35,081 INFO L225 Difference]: With dead ends: 7791 [2020-10-14 00:57:35,082 INFO L226 Difference]: Without dead ends: 3050 [2020-10-14 00:57:35,095 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 00:57:35,099 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3050 states. [2020-10-14 00:57:35,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3050 to 3045. [2020-10-14 00:57:35,177 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3045 states. [2020-10-14 00:57:35,185 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3045 states to 3045 states and 4109 transitions. [2020-10-14 00:57:35,186 INFO L78 Accepts]: Start accepts. Automaton has 3045 states and 4109 transitions. Word has length 187 [2020-10-14 00:57:35,186 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:35,186 INFO L479 AbstractCegarLoop]: Abstraction has 3045 states and 4109 transitions. [2020-10-14 00:57:35,186 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:57:35,186 INFO L276 IsEmpty]: Start isEmpty. Operand 3045 states and 4109 transitions. [2020-10-14 00:57:35,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 196 [2020-10-14 00:57:35,195 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:35,195 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 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, 1, 1] [2020-10-14 00:57:35,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-14 00:57:35,196 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:35,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:35,196 INFO L82 PathProgramCache]: Analyzing trace with hash -295755894, now seen corresponding path program 1 times [2020-10-14 00:57:35,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:35,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1242806069] [2020-10-14 00:57:35,198 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:35,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:35,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:35,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:36,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:37,062 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:39,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:39,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-10-14 00:57:39,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:57:39,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3787 [2020-10-14 00:57:39,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:39,019 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:39,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:39,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 39 [2020-10-14 00:57:39,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-14 00:57:39,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:39,233 WARN L193 SmtUtils]: Spent 127.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:39,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:39,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:39,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:39,247 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:39,248 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:39,248 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:39,248 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 00:57:39,248 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:39,249 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:39,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:39,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:39,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:39,250 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:57:39,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:39,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:39,343 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:39,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:39,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 18 [2020-10-14 00:57:39,357 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:39,357 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-14 00:57:39,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:39,357 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:39,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:39,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:39,358 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:39,358 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:39,365 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 25 [2020-10-14 00:57:39,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:39,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:39,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:39,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-10-14 00:57:39,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:39,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 00:57:39,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:39,391 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:39,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:39,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:39,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-10-14 00:57:39,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:39,458 INFO L134 CoverageAnalysis]: Checked inductivity of 31 backedges. 22 proven. 2 refuted. 0 times theorem prover too weak. 7 trivial. 0 not checked. [2020-10-14 00:57:39,459 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1242806069] [2020-10-14 00:57:39,459 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:39,459 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:57:39,460 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1305070098] [2020-10-14 00:57:39,460 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:57:39,460 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:39,461 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:57:39,461 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:57:39,461 INFO L87 Difference]: Start difference. First operand 3045 states and 4109 transitions. Second operand 5 states. [2020-10-14 00:57:39,658 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:57:42,317 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:42,318 INFO L93 Difference]: Finished difference Result 9031 states and 12415 transitions. [2020-10-14 00:57:42,318 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:57:42,319 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 195 [2020-10-14 00:57:42,319 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:42,346 INFO L225 Difference]: With dead ends: 9031 [2020-10-14 00:57:42,346 INFO L226 Difference]: Without dead ends: 5992 [2020-10-14 00:57:42,356 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 00:57:42,364 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5992 states. [2020-10-14 00:57:42,518 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5992 to 5985. [2020-10-14 00:57:42,518 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5985 states. [2020-10-14 00:57:42,532 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5985 states to 5985 states and 8059 transitions. [2020-10-14 00:57:42,533 INFO L78 Accepts]: Start accepts. Automaton has 5985 states and 8059 transitions. Word has length 195 [2020-10-14 00:57:42,533 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:42,533 INFO L479 AbstractCegarLoop]: Abstraction has 5985 states and 8059 transitions. [2020-10-14 00:57:42,533 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:57:42,534 INFO L276 IsEmpty]: Start isEmpty. Operand 5985 states and 8059 transitions. [2020-10-14 00:57:42,548 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 197 [2020-10-14 00:57:42,548 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:42,549 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-14 00:57:42,549 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-14 00:57:42,549 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:42,549 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:42,550 INFO L82 PathProgramCache]: Analyzing trace with hash 1761152573, now seen corresponding path program 1 times [2020-10-14 00:57:42,550 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:42,550 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [266680432] [2020-10-14 00:57:42,550 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:42,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:42,683 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:42,744 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:43,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:43,845 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:46,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:46,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 208 [2020-10-14 00:57:46,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:57:46,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3455 [2020-10-14 00:57:46,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:46,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 22 [2020-10-14 00:57:46,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 19 [2020-10-14 00:57:46,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:46,255 WARN L193 SmtUtils]: Spent 107.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:46,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:46,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:46,261 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:46,264 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:46,265 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:46,265 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:46,265 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:57:46,265 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:46,265 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:46,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:46,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:46,266 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:46,266 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:46,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:46,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:46,355 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:46,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:46,369 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 13 [2020-10-14 00:57:46,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:46,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 00:57:46,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:46,370 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:46,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:46,370 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:46,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-10-14 00:57:46,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:46,377 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-10-14 00:57:46,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:46,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:46,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:46,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:57:46,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:46,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-14 00:57:46,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:46,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:46,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:46,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:57:46,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 17 [2020-10-14 00:57:46,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:46,599 INFO L134 CoverageAnalysis]: Checked inductivity of 34 backedges. 31 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2020-10-14 00:57:46,600 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [266680432] [2020-10-14 00:57:46,600 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:46,600 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:57:46,600 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [65944482] [2020-10-14 00:57:46,601 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:57:46,601 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:46,602 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:57:46,602 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:57:46,602 INFO L87 Difference]: Start difference. First operand 5985 states and 8059 transitions. Second operand 7 states. [2020-10-14 00:57:46,752 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:57:48,452 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 00:57:49,854 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:49,854 INFO L93 Difference]: Finished difference Result 17962 states and 24549 transitions. [2020-10-14 00:57:49,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:57:49,858 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 196 [2020-10-14 00:57:49,858 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:49,919 INFO L225 Difference]: With dead ends: 17962 [2020-10-14 00:57:49,919 INFO L226 Difference]: Without dead ends: 11983 [2020-10-14 00:57:49,936 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 7 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 00:57:49,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 11983 states. [2020-10-14 00:57:50,214 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 11983 to 11971. [2020-10-14 00:57:50,215 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 11971 states. [2020-10-14 00:57:50,240 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 11971 states to 11971 states and 16172 transitions. [2020-10-14 00:57:50,241 INFO L78 Accepts]: Start accepts. Automaton has 11971 states and 16172 transitions. Word has length 196 [2020-10-14 00:57:50,241 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:50,241 INFO L479 AbstractCegarLoop]: Abstraction has 11971 states and 16172 transitions. [2020-10-14 00:57:50,241 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:57:50,242 INFO L276 IsEmpty]: Start isEmpty. Operand 11971 states and 16172 transitions. [2020-10-14 00:57:50,262 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 211 [2020-10-14 00:57:50,262 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:50,263 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:50,264 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-14 00:57:50,264 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:50,265 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:50,265 INFO L82 PathProgramCache]: Analyzing trace with hash 1202066042, now seen corresponding path program 1 times [2020-10-14 00:57:50,265 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:50,265 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1230781321] [2020-10-14 00:57:50,266 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:50,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:50,339 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:50,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:51,941 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:54,219 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:54,219 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 222 [2020-10-14 00:57:54,219 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:57:54,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3904 [2020-10-14 00:57:54,220 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:54,220 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:57:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 54 [2020-10-14 00:57:54,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-14 00:57:54,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:54,415 WARN L193 SmtUtils]: Spent 116.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:57:54,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:57:54,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:54,421 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:54,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:54,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:57:54,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:54,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:57:54,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:54,427 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:54,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:54,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:54,503 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:57:54,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:54,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:54,520 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:54,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-10-14 00:57:54,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:54,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 00:57:54,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:54,521 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:54,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:57:54,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:54,521 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:57:54,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:54,525 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 22 [2020-10-14 00:57:54,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:54,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:54,564 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:57:54,565 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 29 [2020-10-14 00:57:54,565 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:57:54,565 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-14 00:57:54,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:57:54,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:57:54,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:57:54,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:57:54,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 23 [2020-10-14 00:57:54,566 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:57:54,615 INFO L134 CoverageAnalysis]: Checked inductivity of 50 backedges. 37 proven. 2 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-10-14 00:57:54,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1230781321] [2020-10-14 00:57:54,615 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:57:54,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:57:54,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [995522704] [2020-10-14 00:57:54,616 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:57:54,616 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:57:54,617 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:57:54,617 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:57:54,617 INFO L87 Difference]: Start difference. First operand 11971 states and 16172 transitions. Second operand 5 states. [2020-10-14 00:57:54,820 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:57:57,124 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:57:57,124 INFO L93 Difference]: Finished difference Result 27304 states and 37296 transitions. [2020-10-14 00:57:57,125 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:57:57,125 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 210 [2020-10-14 00:57:57,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:57:57,179 INFO L225 Difference]: With dead ends: 27304 [2020-10-14 00:57:57,179 INFO L226 Difference]: Without dead ends: 15339 [2020-10-14 00:57:57,207 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 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 00:57:57,223 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15339 states. [2020-10-14 00:57:57,701 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15339 to 15329. [2020-10-14 00:57:57,701 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15329 states. [2020-10-14 00:57:57,733 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15329 states to 15329 states and 19828 transitions. [2020-10-14 00:57:57,734 INFO L78 Accepts]: Start accepts. Automaton has 15329 states and 19828 transitions. Word has length 210 [2020-10-14 00:57:57,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:57:57,734 INFO L479 AbstractCegarLoop]: Abstraction has 15329 states and 19828 transitions. [2020-10-14 00:57:57,734 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:57:57,735 INFO L276 IsEmpty]: Start isEmpty. Operand 15329 states and 19828 transitions. [2020-10-14 00:57:57,755 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 230 [2020-10-14 00:57:57,755 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:57:57,756 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:57:57,756 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-14 00:57:57,756 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:57:57,757 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:57:57,757 INFO L82 PathProgramCache]: Analyzing trace with hash -312345953, now seen corresponding path program 1 times [2020-10-14 00:57:57,757 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:57:57,757 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1237131794] [2020-10-14 00:57:57,757 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:57:57,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:57:57,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:57,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:59,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:57:59,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:00,256 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:02,891 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:02,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 241 [2020-10-14 00:58:02,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:58:02,892 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5087 [2020-10-14 00:58:02,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:02,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 73 [2020-10-14 00:58:02,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-14 00:58:02,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:58:03,103 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:03,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:03,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:03,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:03,115 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:03,115 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:03,115 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:03,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-10-14 00:58:03,116 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:03,116 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:03,116 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:03,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:03,117 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:58:03,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:03,192 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:03,194 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:03,206 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:03,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 00:58:03,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:03,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 00:58:03,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:03,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:03,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:03,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:03,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:03,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:03,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 00:58:03,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:03,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:03,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:03,260 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 39 [2020-10-14 00:58:03,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:03,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 36 [2020-10-14 00:58:03,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:03,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:03,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 33 [2020-10-14 00:58:03,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:03,315 INFO L134 CoverageAnalysis]: Checked inductivity of 78 backedges. 56 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-14 00:58:03,315 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1237131794] [2020-10-14 00:58:03,315 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:58:03,315 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:58:03,316 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1507999462] [2020-10-14 00:58:03,316 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:58:03,317 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:58:03,317 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:58:03,317 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:58:03,317 INFO L87 Difference]: Start difference. First operand 15329 states and 19828 transitions. Second operand 5 states. [2020-10-14 00:58:03,465 WARN L193 SmtUtils]: Spent 115.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:58:06,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:58:06,280 INFO L93 Difference]: Finished difference Result 40146 states and 52736 transitions. [2020-10-14 00:58:06,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:58:06,280 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 229 [2020-10-14 00:58:06,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:58:06,371 INFO L225 Difference]: With dead ends: 40146 [2020-10-14 00:58:06,371 INFO L226 Difference]: Without dead ends: 24823 [2020-10-14 00:58:06,409 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 9 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:58:06,438 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24823 states. [2020-10-14 00:58:06,967 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24823 to 24776. [2020-10-14 00:58:06,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 24776 states. [2020-10-14 00:58:07,018 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24776 states to 24776 states and 32681 transitions. [2020-10-14 00:58:07,018 INFO L78 Accepts]: Start accepts. Automaton has 24776 states and 32681 transitions. Word has length 229 [2020-10-14 00:58:07,019 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:58:07,019 INFO L479 AbstractCegarLoop]: Abstraction has 24776 states and 32681 transitions. [2020-10-14 00:58:07,019 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:58:07,019 INFO L276 IsEmpty]: Start isEmpty. Operand 24776 states and 32681 transitions. [2020-10-14 00:58:07,055 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 238 [2020-10-14 00:58:07,055 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:58:07,056 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:58:07,056 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-14 00:58:07,056 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:58:07,057 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:58:07,057 INFO L82 PathProgramCache]: Analyzing trace with hash -324193041, now seen corresponding path program 1 times [2020-10-14 00:58:07,057 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:58:07,057 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [613147907] [2020-10-14 00:58:07,057 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:58:07,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:07,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:07,188 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:09,351 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:11,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:12,125 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:12,125 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 249 [2020-10-14 00:58:12,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:58:12,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 00:58:12,126 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:12,126 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 00:58:12,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-14 00:58:12,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:12,320 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:12,320 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:12,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:12,330 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:12,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:12,331 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:12,331 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 00:58:12,331 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:12,331 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:12,331 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:12,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:12,332 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:12,332 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:12,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:12,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:12,406 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:12,424 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:12,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 00:58:12,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:12,425 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-14 00:58:12,425 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:12,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:12,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:12,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:12,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:12,426 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:12,433 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 00:58:12,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:12,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:12,492 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:12,492 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 47 [2020-10-14 00:58:12,493 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-14 00:58:12,493 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:12,493 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:12,493 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 41 [2020-10-14 00:58:12,493 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:12,558 INFO L134 CoverageAnalysis]: Checked inductivity of 86 backedges. 64 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-14 00:58:12,559 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [613147907] [2020-10-14 00:58:12,559 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:58:12,559 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:58:12,560 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [699534747] [2020-10-14 00:58:12,560 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:58:12,560 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:58:12,561 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:58:12,561 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:58:12,561 INFO L87 Difference]: Start difference. First operand 24776 states and 32681 transitions. Second operand 5 states. [2020-10-14 00:58:12,687 WARN L193 SmtUtils]: Spent 103.00 ms on a formula simplification that was a NOOP. DAG size: 129 [2020-10-14 00:58:15,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:58:15,268 INFO L93 Difference]: Finished difference Result 63432 states and 84682 transitions. [2020-10-14 00:58:15,268 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:58:15,268 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 237 [2020-10-14 00:58:15,269 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:58:15,425 INFO L225 Difference]: With dead ends: 63432 [2020-10-14 00:58:15,425 INFO L226 Difference]: Without dead ends: 38662 [2020-10-14 00:58:15,485 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=13, Invalid=17, Unknown=0, NotChecked=0, Total=30 [2020-10-14 00:58:15,530 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38662 states. [2020-10-14 00:58:16,396 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38662 to 38609. [2020-10-14 00:58:16,397 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 38609 states. [2020-10-14 00:58:16,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 38609 states to 38609 states and 50759 transitions. [2020-10-14 00:58:16,459 INFO L78 Accepts]: Start accepts. Automaton has 38609 states and 50759 transitions. Word has length 237 [2020-10-14 00:58:16,459 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:58:16,459 INFO L479 AbstractCegarLoop]: Abstraction has 38609 states and 50759 transitions. [2020-10-14 00:58:16,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:58:16,460 INFO L276 IsEmpty]: Start isEmpty. Operand 38609 states and 50759 transitions. [2020-10-14 00:58:16,517 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 259 [2020-10-14 00:58:16,518 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:58:16,518 INFO L422 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:58:16,518 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-14 00:58:16,519 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:58:16,519 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:58:16,519 INFO L82 PathProgramCache]: Analyzing trace with hash 918873735, now seen corresponding path program 1 times [2020-10-14 00:58:16,519 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:58:16,520 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2052634714] [2020-10-14 00:58:16,520 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:58:16,565 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:16,588 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:16,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:17,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:18,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:21,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:21,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 270 [2020-10-14 00:58:21,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-14 00:58:21,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5025 [2020-10-14 00:58:21,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:21,592 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:21,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:21,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 102 [2020-10-14 00:58:21,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 167 [2020-10-14 00:58:21,593 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:21,846 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:21,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:21,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:21,852 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:21,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:21,867 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:21,867 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:21,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 00:58:21,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:21,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:21,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:21,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:21,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:21,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:58:21,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:21,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:21,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:21,960 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:21,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 24 [2020-10-14 00:58:21,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:21,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-10-14 00:58:21,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:21,962 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:21,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:21,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:21,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:21,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:21,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 31 [2020-10-14 00:58:21,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:21,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:22,054 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:22,054 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 68 [2020-10-14 00:58:22,054 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:22,055 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-14 00:58:22,055 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:22,055 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:22,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:22,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:22,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 62 [2020-10-14 00:58:22,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:22,169 INFO L134 CoverageAnalysis]: Checked inductivity of 107 backedges. 85 proven. 2 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2020-10-14 00:58:22,169 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2052634714] [2020-10-14 00:58:22,169 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:58:22,169 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5] total 5 [2020-10-14 00:58:22,170 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1482799778] [2020-10-14 00:58:22,170 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-14 00:58:22,171 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:58:22,171 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-14 00:58:22,171 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-14 00:58:22,171 INFO L87 Difference]: Start difference. First operand 38609 states and 50759 transitions. Second operand 5 states. [2020-10-14 00:58:22,393 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:58:25,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:58:25,280 INFO L93 Difference]: Finished difference Result 95416 states and 127042 transitions. [2020-10-14 00:58:25,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-14 00:58:25,281 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 258 [2020-10-14 00:58:25,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:58:25,498 INFO L225 Difference]: With dead ends: 95416 [2020-10-14 00:58:25,498 INFO L226 Difference]: Without dead ends: 56813 [2020-10-14 00:58:25,562 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 1 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 00:58:25,616 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56813 states. [2020-10-14 00:58:26,519 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56813 to 51387. [2020-10-14 00:58:26,519 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 51387 states. [2020-10-14 00:58:26,597 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 51387 states to 51387 states and 67137 transitions. [2020-10-14 00:58:26,598 INFO L78 Accepts]: Start accepts. Automaton has 51387 states and 67137 transitions. Word has length 258 [2020-10-14 00:58:26,598 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:58:26,598 INFO L479 AbstractCegarLoop]: Abstraction has 51387 states and 67137 transitions. [2020-10-14 00:58:26,598 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-14 00:58:26,599 INFO L276 IsEmpty]: Start isEmpty. Operand 51387 states and 67137 transitions. [2020-10-14 00:58:26,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 357 [2020-10-14 00:58:26,656 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:58:26,656 INFO L422 BasicCegarLoop]: trace histogram [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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 00:58:26,656 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-14 00:58:26,657 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:58:26,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:58:26,657 INFO L82 PathProgramCache]: Analyzing trace with hash -497749562, now seen corresponding path program 1 times [2020-10-14 00:58:26,657 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:58:26,657 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1964104739] [2020-10-14 00:58:26,658 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:58:26,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:26,800 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:26,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:29,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:31,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:31,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 370 [2020-10-14 00:58:31,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:58:31,796 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5045 [2020-10-14 00:58:31,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:31,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:31,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:31,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 137 [2020-10-14 00:58:31,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 00:58:31,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:31,966 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:31,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:31,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:31,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:31,976 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:31,976 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:31,976 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:31,976 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:58:31,976 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:31,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:31,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:31,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:32,050 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:32,105 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:32,216 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:32,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 00:58:32,217 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:32,217 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-14 00:58:32,217 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:32,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:32,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:32,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:32,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 00:58:32,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:32,258 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 00:58:32,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:32,279 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:32,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:32,354 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 00:58:32,354 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:32,354 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 82 [2020-10-14 00:58:32,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:32,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:32,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:32,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:58:32,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 00:58:32,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:32,398 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 180 [2020-10-14 00:58:32,404 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:32,408 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:32,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:32,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:58:32,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:32,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 00:58:32,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:32,419 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 00:58:32,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:32,419 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:32,510 INFO L134 CoverageAnalysis]: Checked inductivity of 256 backedges. 225 proven. 15 refuted. 0 times theorem prover too weak. 16 trivial. 0 not checked. [2020-10-14 00:58:32,511 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1964104739] [2020-10-14 00:58:32,511 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:58:32,511 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:58:32,511 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [235826842] [2020-10-14 00:58:32,512 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:58:32,512 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:58:32,512 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:58:32,512 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:58:32,513 INFO L87 Difference]: Start difference. First operand 51387 states and 67137 transitions. Second operand 7 states. [2020-10-14 00:58:32,778 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:58:32,961 WARN L193 SmtUtils]: Spent 120.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 00:58:37,511 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:58:37,511 INFO L93 Difference]: Finished difference Result 114949 states and 160182 transitions. [2020-10-14 00:58:37,512 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:58:37,512 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 356 [2020-10-14 00:58:37,513 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:58:37,818 INFO L225 Difference]: With dead ends: 114949 [2020-10-14 00:58:37,818 INFO L226 Difference]: Without dead ends: 63568 [2020-10-14 00:58:37,906 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 13 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:58:37,962 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 63568 states. [2020-10-14 00:58:39,347 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 63568 to 61970. [2020-10-14 00:58:39,348 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 61970 states. [2020-10-14 00:58:39,529 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 61970 states to 61970 states and 80823 transitions. [2020-10-14 00:58:39,530 INFO L78 Accepts]: Start accepts. Automaton has 61970 states and 80823 transitions. Word has length 356 [2020-10-14 00:58:39,530 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:58:39,530 INFO L479 AbstractCegarLoop]: Abstraction has 61970 states and 80823 transitions. [2020-10-14 00:58:39,531 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:58:39,531 INFO L276 IsEmpty]: Start isEmpty. Operand 61970 states and 80823 transitions. [2020-10-14 00:58:39,642 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 383 [2020-10-14 00:58:39,642 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:58:39,643 INFO L422 BasicCegarLoop]: trace histogram [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, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:58:39,643 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-14 00:58:39,643 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:58:39,644 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:58:39,644 INFO L82 PathProgramCache]: Analyzing trace with hash -1108609315, now seen corresponding path program 1 times [2020-10-14 00:58:39,644 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:58:39,645 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [795963142] [2020-10-14 00:58:39,645 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:58:39,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:39,922 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:40,169 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:40,396 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:44,820 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:44,820 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 398 [2020-10-14 00:58:44,820 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-14 00:58:44,820 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5006 [2020-10-14 00:58:44,821 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:44,821 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:44,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:44,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 165 [2020-10-14 00:58:44,821 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 48 [2020-10-14 00:58:44,822 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:44,990 WARN L193 SmtUtils]: Spent 100.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:44,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:44,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:44,995 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:44,998 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:44,998 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:44,998 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:44,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:58:44,998 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:44,999 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:44,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:44,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:44,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:44,999 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:45,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:45,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:45,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:45,117 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:45,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 00:58:45,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:45,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-14 00:58:45,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:45,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:45,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:45,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:45,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:45,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:45,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-14 00:58:45,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:45,167 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:45,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:45,193 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 27 [2020-10-14 00:58:45,193 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:45,193 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 00:58:45,193 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:45,194 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:45,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:45,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:45,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-10-14 00:58:45,194 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:45,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 161 [2020-10-14 00:58:45,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:45,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:45,336 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:45,336 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 00:58:45,337 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:45,337 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-10-14 00:58:45,337 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:45,338 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:58:45,338 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 46 [2020-10-14 00:58:45,339 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:58:45,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 206 [2020-10-14 00:58:45,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:45,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:45,458 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:45,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:58:45,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:45,459 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 00:58:45,459 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:45,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 00:58:45,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:45,460 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:45,629 INFO L134 CoverageAnalysis]: Checked inductivity of 347 backedges. 280 proven. 15 refuted. 0 times theorem prover too weak. 52 trivial. 0 not checked. [2020-10-14 00:58:45,629 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [795963142] [2020-10-14 00:58:45,630 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:58:45,630 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:58:45,630 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [854623884] [2020-10-14 00:58:45,630 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:58:45,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:58:45,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:58:45,631 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:58:45,631 INFO L87 Difference]: Start difference. First operand 61970 states and 80823 transitions. Second operand 7 states. [2020-10-14 00:58:45,768 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:58:46,966 WARN L193 SmtUtils]: Spent 110.00 ms on a formula simplification that was a NOOP. DAG size: 133 [2020-10-14 00:58:49,191 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:58:49,191 INFO L93 Difference]: Finished difference Result 147475 states and 192645 transitions. [2020-10-14 00:58:49,191 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-14 00:58:49,191 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 382 [2020-10-14 00:58:49,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:58:49,398 INFO L225 Difference]: With dead ends: 147475 [2020-10-14 00:58:49,398 INFO L226 Difference]: Without dead ends: 85531 [2020-10-14 00:58:49,476 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-14 00:58:49,544 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85531 states. [2020-10-14 00:58:50,646 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85531 to 82648. [2020-10-14 00:58:50,647 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82648 states. [2020-10-14 00:58:50,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82648 states to 82648 states and 104841 transitions. [2020-10-14 00:58:50,770 INFO L78 Accepts]: Start accepts. Automaton has 82648 states and 104841 transitions. Word has length 382 [2020-10-14 00:58:50,770 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:58:50,770 INFO L479 AbstractCegarLoop]: Abstraction has 82648 states and 104841 transitions. [2020-10-14 00:58:50,770 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:58:50,770 INFO L276 IsEmpty]: Start isEmpty. Operand 82648 states and 104841 transitions. [2020-10-14 00:58:50,877 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 503 [2020-10-14 00:58:50,877 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:58:50,877 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 00:58:50,878 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-14 00:58:50,878 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:58:50,878 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:58:50,878 INFO L82 PathProgramCache]: Analyzing trace with hash -726865635, now seen corresponding path program 1 times [2020-10-14 00:58:50,878 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:58:50,878 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1556925657] [2020-10-14 00:58:50,879 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:58:50,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:51,028 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:51,239 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:51,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:51,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:53,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:55,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:55,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 522 [2020-10-14 00:58:55,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:58:55,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5003 [2020-10-14 00:58:55,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:55,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:55,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:55,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 150 [2020-10-14 00:58:55,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-14 00:58:55,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:58:56,228 WARN L193 SmtUtils]: Spent 124.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:58:56,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:58:56,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:56,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:56,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:56,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:58:56,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:56,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 00:58:56,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:56,243 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:56,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:56,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:56,244 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:56,244 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:58:56,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:58:56,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:56,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:56,344 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:56,344 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 00:58:56,344 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:56,345 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-10-14 00:58:56,345 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:56,345 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:56,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:56,345 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:56,346 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:56,346 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-14 00:58:56,351 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 00:58:56,406 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:56,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:56,916 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:56,916 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 00:58:56,916 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:56,917 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 509 [2020-10-14 00:58:56,917 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:56,917 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:56,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:58:56,917 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:58:56,918 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 122 [2020-10-14 00:58:56,918 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:56,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 00:58:57,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:57,045 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:57,260 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:57,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 135 [2020-10-14 00:58:57,261 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:57,261 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 239 [2020-10-14 00:58:57,261 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:57,261 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:57,261 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:58:57,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:58:57,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 135 [2020-10-14 00:58:57,262 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:57,464 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 280 [2020-10-14 00:58:57,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:57,472 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:57,483 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:57,483 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 20 [2020-10-14 00:58:57,483 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:57,483 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-14 00:58:57,484 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:57,484 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:57,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:57,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 17 [2020-10-14 00:58:57,484 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:57,484 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:57,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 299 [2020-10-14 00:58:57,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:57,509 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:57,531 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:57,531 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 28 [2020-10-14 00:58:57,531 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:57,532 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 00:58:57,532 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:57,532 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:57,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:57,532 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 25 [2020-10-14 00:58:57,533 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:57,533 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:57,543 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 326 [2020-10-14 00:58:57,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:58:57,554 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:58:57,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:58:57,567 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:58:57,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:58:57,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-14 00:58:57,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:58:57,568 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:58:57,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:58:57,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 00:58:57,569 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:58:57,569 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:58:57,893 INFO L134 CoverageAnalysis]: Checked inductivity of 673 backedges. 477 proven. 55 refuted. 0 times theorem prover too weak. 141 trivial. 0 not checked. [2020-10-14 00:58:57,894 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1556925657] [2020-10-14 00:58:57,894 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:58:57,894 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 00:58:57,894 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1902100933] [2020-10-14 00:58:57,895 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 00:58:57,895 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:58:57,895 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 00:58:57,895 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:58:57,895 INFO L87 Difference]: Start difference. First operand 82648 states and 104841 transitions. Second operand 8 states. [2020-10-14 00:58:58,143 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 00:58:59,416 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification that was a NOOP. DAG size: 139 [2020-10-14 00:59:00,349 WARN L193 SmtUtils]: Spent 125.00 ms on a formula simplification that was a NOOP. DAG size: 136 [2020-10-14 00:59:07,287 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:59:07,287 INFO L93 Difference]: Finished difference Result 307455 states and 418805 transitions. [2020-10-14 00:59:07,288 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 00:59:07,288 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 502 [2020-10-14 00:59:07,289 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:59:08,293 INFO L225 Difference]: With dead ends: 307455 [2020-10-14 00:59:08,293 INFO L226 Difference]: Without dead ends: 224845 [2020-10-14 00:59:08,452 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 00:59:08,634 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 224845 states. [2020-10-14 00:59:17,173 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 224845 to 217016. [2020-10-14 00:59:17,173 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 217016 states. [2020-10-14 00:59:17,542 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 217016 states to 217016 states and 271910 transitions. [2020-10-14 00:59:17,543 INFO L78 Accepts]: Start accepts. Automaton has 217016 states and 271910 transitions. Word has length 502 [2020-10-14 00:59:17,543 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:59:17,544 INFO L479 AbstractCegarLoop]: Abstraction has 217016 states and 271910 transitions. [2020-10-14 00:59:17,544 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 00:59:17,544 INFO L276 IsEmpty]: Start isEmpty. Operand 217016 states and 271910 transitions. [2020-10-14 00:59:17,796 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 508 [2020-10-14 00:59:17,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:59:17,796 INFO L422 BasicCegarLoop]: trace histogram [7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 00:59:17,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-14 00:59:17,796 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:59:17,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:59:17,797 INFO L82 PathProgramCache]: Analyzing trace with hash 223865163, now seen corresponding path program 1 times [2020-10-14 00:59:17,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:59:17,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1781566375] [2020-10-14 00:59:17,797 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:59:17,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:17,944 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:18,097 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:18,260 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:18,405 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:18,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:22,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:22,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 527 [2020-10-14 00:59:22,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:59:22,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5012 [2020-10-14 00:59:22,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:22,894 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:22,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:59:22,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-10-14 00:59:22,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 00:59:22,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:23,063 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:59:23,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:59:23,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:23,069 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:23,073 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:23,073 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:59:23,073 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:23,073 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:59:23,074 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:23,074 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:59:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:59:23,074 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:59:23,074 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:23,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:59:23,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:23,149 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:23,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:23,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 00:59:23,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:23,159 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:59:23,159 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:23,159 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:59:23,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:59:23,160 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-10-14 00:59:23,160 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:23,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 00:59:23,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:23,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:23,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:23,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 00:59:23,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:23,389 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 197 [2020-10-14 00:59:23,389 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:23,389 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:23,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:59:23,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:59:23,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 00:59:23,390 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:23,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-14 00:59:23,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:23,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:23,583 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:23,583 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 00:59:23,584 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:23,584 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-14 00:59:23,584 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:23,584 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:23,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:59:23,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 00:59:23,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:59:23,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:23,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-10-14 00:59:23,621 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:23,631 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:23,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:23,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 00:59:23,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:23,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 00:59:23,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:23,659 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:59:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 00:59:23,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:59:23,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:23,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-10-14 00:59:23,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:23,693 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:23,713 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:23,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 00:59:23,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:23,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 00:59:23,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:23,714 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:23,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:59:23,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-14 00:59:23,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:59:23,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:23,726 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 331 [2020-10-14 00:59:23,731 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:23,734 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:23,742 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:23,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:59:23,743 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:23,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-14 00:59:23,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:23,743 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:59:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 00:59:23,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:59:23,743 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:24,525 INFO L134 CoverageAnalysis]: Checked inductivity of 773 backedges. 345 proven. 191 refuted. 0 times theorem prover too weak. 237 trivial. 0 not checked. [2020-10-14 00:59:24,526 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1781566375] [2020-10-14 00:59:24,526 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:59:24,526 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-14 00:59:24,526 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1945546430] [2020-10-14 00:59:24,527 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-14 00:59:24,527 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:59:24,527 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-14 00:59:24,527 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-14 00:59:24,528 INFO L87 Difference]: Start difference. First operand 217016 states and 271910 transitions. Second operand 7 states. [2020-10-14 00:59:24,662 WARN L193 SmtUtils]: Spent 109.00 ms on a formula simplification that was a NOOP. DAG size: 130 [2020-10-14 00:59:25,603 WARN L193 SmtUtils]: Spent 123.00 ms on a formula simplification that was a NOOP. DAG size: 132 [2020-10-14 00:59:33,538 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:59:33,538 INFO L93 Difference]: Finished difference Result 423604 states and 531572 transitions. [2020-10-14 00:59:33,538 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-14 00:59:33,538 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 507 [2020-10-14 00:59:33,539 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:59:34,036 INFO L225 Difference]: With dead ends: 423604 [2020-10-14 00:59:34,036 INFO L226 Difference]: Without dead ends: 206811 [2020-10-14 00:59:34,210 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-14 00:59:34,366 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 206811 states. [2020-10-14 00:59:37,088 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 206811 to 204760. [2020-10-14 00:59:37,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 204760 states. [2020-10-14 00:59:37,414 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 204760 states to 204760 states and 243133 transitions. [2020-10-14 00:59:37,415 INFO L78 Accepts]: Start accepts. Automaton has 204760 states and 243133 transitions. Word has length 507 [2020-10-14 00:59:37,415 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 00:59:37,415 INFO L479 AbstractCegarLoop]: Abstraction has 204760 states and 243133 transitions. [2020-10-14 00:59:37,416 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-14 00:59:37,416 INFO L276 IsEmpty]: Start isEmpty. Operand 204760 states and 243133 transitions. [2020-10-14 00:59:38,361 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 540 [2020-10-14 00:59:38,361 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 00:59:38,361 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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 00:59:38,361 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-14 00:59:38,362 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 00:59:38,362 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 00:59:38,362 INFO L82 PathProgramCache]: Analyzing trace with hash 160747144, now seen corresponding path program 1 times [2020-10-14 00:59:38,362 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 00:59:38,362 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1144032179] [2020-10-14 00:59:38,362 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 00:59:38,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:38,503 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:38,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:38,824 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:38,984 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:39,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:44,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:44,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 561 [2020-10-14 00:59:44,406 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 00:59:44,406 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5956 [2020-10-14 00:59:44,406 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:44,406 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:59:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 55 [2020-10-14 00:59:44,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 00:59:44,407 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:44,586 WARN L193 SmtUtils]: Spent 101.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 00:59:44,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 00:59:44,589 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:44,591 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:44,594 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:44,594 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 00:59:44,594 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:44,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-14 00:59:44,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:44,595 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:44,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:59:44,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:59:44,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:59:44,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:44,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 00:59:44,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:44,667 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:44,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:44,672 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 00:59:44,672 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:44,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 00:59:44,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:44,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:44,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:59:44,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:59:44,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:59:44,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:44,676 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 00:59:44,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:44,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:44,714 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:44,714 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 33 [2020-10-14 00:59:44,714 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:44,714 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-14 00:59:44,715 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:44,715 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:44,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 00:59:44,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 00:59:44,715 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 27 [2020-10-14 00:59:44,715 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:44,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-10-14 00:59:44,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:44,790 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:44,971 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:44,971 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 00:59:44,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:44,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 201 [2020-10-14 00:59:44,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:44,971 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:44,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 00:59:44,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 00:59:44,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 00:59:44,972 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:45,076 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 178 [2020-10-14 00:59:45,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:45,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:45,179 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:45,180 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 00:59:45,180 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:45,180 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 66 [2020-10-14 00:59:45,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:45,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:45,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:59:45,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 00:59:45,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:59:45,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:45,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 260 [2020-10-14 00:59:45,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:45,229 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:45,257 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:45,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 00:59:45,258 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:45,258 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-14 00:59:45,258 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:45,258 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:45,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:59:45,258 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 00:59:45,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:59:45,259 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:45,274 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 318 [2020-10-14 00:59:45,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:45,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:45,312 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:45,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 00:59:45,313 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:45,313 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-14 00:59:45,313 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:45,313 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:45,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:59:45,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-14 00:59:45,313 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:59:45,314 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:45,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 363 [2020-10-14 00:59:45,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 00:59:45,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 00:59:45,353 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 00:59:45,353 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 00:59:45,353 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 00:59:45,353 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-10-14 00:59:45,354 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 00:59:45,354 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 00:59:45,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 00:59:45,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 00:59:45,354 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 00:59:45,355 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 00:59:45,645 INFO L134 CoverageAnalysis]: Checked inductivity of 957 backedges. 424 proven. 191 refuted. 0 times theorem prover too weak. 342 trivial. 0 not checked. [2020-10-14 00:59:45,646 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1144032179] [2020-10-14 00:59:45,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-14 00:59:45,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-14 00:59:45,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [82117169] [2020-10-14 00:59:45,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-14 00:59:45,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-14 00:59:45,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-14 00:59:45,647 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-14 00:59:45,647 INFO L87 Difference]: Start difference. First operand 204760 states and 243133 transitions. Second operand 8 states. [2020-10-14 00:59:45,935 WARN L193 SmtUtils]: Spent 118.00 ms on a formula simplification that was a NOOP. DAG size: 135 [2020-10-14 00:59:46,379 WARN L193 SmtUtils]: Spent 112.00 ms on a formula simplification that was a NOOP. DAG size: 134 [2020-10-14 00:59:47,653 WARN L193 SmtUtils]: Spent 111.00 ms on a formula simplification that was a NOOP. DAG size: 131 [2020-10-14 00:59:54,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-14 00:59:54,401 INFO L93 Difference]: Finished difference Result 478450 states and 593219 transitions. [2020-10-14 00:59:54,401 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-14 00:59:54,401 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 539 [2020-10-14 00:59:54,402 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-14 00:59:55,418 INFO L225 Difference]: With dead ends: 478450 [2020-10-14 00:59:55,419 INFO L226 Difference]: Without dead ends: 290945 [2020-10-14 00:59:55,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-10-14 00:59:55,799 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 290945 states. [2020-10-14 01:00:04,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 290945 to 273447. [2020-10-14 01:00:04,746 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 273447 states. [2020-10-14 01:00:05,179 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 273447 states to 273447 states and 323214 transitions. [2020-10-14 01:00:05,181 INFO L78 Accepts]: Start accepts. Automaton has 273447 states and 323214 transitions. Word has length 539 [2020-10-14 01:00:05,181 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-14 01:00:05,181 INFO L479 AbstractCegarLoop]: Abstraction has 273447 states and 323214 transitions. [2020-10-14 01:00:05,181 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-14 01:00:05,181 INFO L276 IsEmpty]: Start isEmpty. Operand 273447 states and 323214 transitions. [2020-10-14 01:00:05,455 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 566 [2020-10-14 01:00:05,455 INFO L414 BasicCegarLoop]: Found error trace [2020-10-14 01:00:05,455 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 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, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 01:00:05,456 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-14 01:00:05,456 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-14 01:00:05,456 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-14 01:00:05,456 INFO L82 PathProgramCache]: Analyzing trace with hash -510180371, now seen corresponding path program 2 times [2020-10-14 01:00:05,457 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-14 01:00:05,457 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1210469012] [2020-10-14 01:00:05,457 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-14 01:00:05,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:00:05,559 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:00:05,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:00:05,819 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:00:05,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:00:06,453 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:00:10,528 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:00:10,528 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 587 [2020-10-14 01:00:10,528 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-14 01:00:10,528 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5002 [2020-10-14 01:00:10,528 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:00:10,529 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:00:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:00:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-14 01:00:10,529 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 130 [2020-10-14 01:00:10,529 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:00:10,702 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification that was a NOOP. DAG size: 127 [2020-10-14 01:00:10,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-14 01:00:10,706 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:00:10,708 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:00:10,712 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:00:10,713 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-14 01:00:10,713 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:00:10,713 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-14 01:00:10,713 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:00:10,713 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:00:10,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:00:10,713 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:00:10,714 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:00:10,714 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:00:10,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-14 01:00:10,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:00:10,786 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:00:10,791 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:00:10,791 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 12 [2020-10-14 01:00:10,791 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:00:10,791 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-14 01:00:10,792 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:00:10,792 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:00:10,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:00:10,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:00:10,792 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:00:10,792 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:00:10,795 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-10-14 01:00:10,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:00:10,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:00:10,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:00:10,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 01:00:10,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:00:10,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-14 01:00:10,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:00:10,868 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:00:10,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-14 01:00:10,868 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-14 01:00:10,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 53 [2020-10-14 01:00:10,869 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:00:10,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 77 [2020-10-14 01:00:10,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:00:10,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:00:14,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:00:14,654 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 128 [2020-10-14 01:00:14,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:00:14,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3718 [2020-10-14 01:00:14,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:00:14,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:00:14,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-14 01:00:14,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-14 01:00:14,654 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 128 [2020-10-14 01:00:14,654 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:00:14,754 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 204 [2020-10-14 01:00:14,772 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:00:14,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:00:14,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:00:14,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 83 [2020-10-14 01:00:14,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:00:14,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 49 [2020-10-14 01:00:14,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:00:14,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:00:14,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:00:14,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-10-14 01:00:14,823 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:00:14,823 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:00:14,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 286 [2020-10-14 01:00:14,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:00:14,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:00:14,894 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:00:14,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 59 [2020-10-14 01:00:14,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:00:14,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-14 01:00:14,895 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:00:14,895 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:00:14,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:00:14,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 56 [2020-10-14 01:00:14,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:00:14,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:00:14,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 344 [2020-10-14 01:00:14,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:00:14,933 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:00:14,952 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:00:14,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 46 [2020-10-14 01:00:14,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:00:14,953 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-14 01:00:14,953 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:00:14,954 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:00:14,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:00:14,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-10-14 01:00:14,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:00:14,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-14 01:00:14,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 389 [2020-10-14 01:00:14,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-14 01:00:14,972 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-14 01:00:14,979 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-14 01:00:14,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 17 [2020-10-14 01:00:14,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-14 01:00:14,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-14 01:00:14,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-10-14 01:00:14,979 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-10-14 01:00:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-14 01:00:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 14 [2020-10-14 01:00:14,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-14 01:00:14,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0