/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=BIGGEST --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/Problem16_label17.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-adbd35c [2020-10-12 14:26:44,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-12 14:26:44,804 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-12 14:26:44,846 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-12 14:26:44,846 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-12 14:26:44,855 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-12 14:26:44,857 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-12 14:26:44,860 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-12 14:26:44,863 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-12 14:26:44,866 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-12 14:26:44,867 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-12 14:26:44,868 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-12 14:26:44,868 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-12 14:26:44,871 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-12 14:26:44,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-12 14:26:44,875 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-12 14:26:44,877 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-12 14:26:44,878 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-12 14:26:44,879 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-12 14:26:44,887 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-12 14:26:44,889 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-12 14:26:44,890 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-12 14:26:44,891 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-12 14:26:44,892 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-12 14:26:44,894 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-12 14:26:44,894 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-12 14:26:44,895 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-12 14:26:44,896 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-12 14:26:44,899 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-12 14:26:44,900 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-12 14:26:44,900 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-12 14:26:44,901 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-12 14:26:44,907 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-12 14:26:44,908 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-12 14:26:44,909 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-12 14:26:44,909 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-12 14:26:44,910 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-12 14:26:44,910 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-12 14:26:44,910 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-12 14:26:44,911 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-12 14:26:44,911 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-12 14:26:44,912 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 [2020-10-12 14:26:44,934 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-12 14:26:44,934 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-12 14:26:44,935 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-10-12 14:26:44,935 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-10-12 14:26:44,936 INFO L138 SettingsManager]: * Use SBE=true [2020-10-12 14:26:44,936 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-12 14:26:44,936 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-12 14:26:44,936 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-12 14:26:44,936 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-12 14:26:44,937 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-12 14:26:44,937 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-12 14:26:44,937 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-12 14:26:44,937 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-12 14:26:44,937 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-12 14:26:44,937 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-12 14:26:44,938 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-12 14:26:44,938 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-12 14:26:44,938 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-12 14:26:44,938 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-10-12 14:26:44,938 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-12 14:26:44,939 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-12 14:26:44,939 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-12 14:26:44,939 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-12 14:26:44,939 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-10-12 14:26:44,940 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-10-12 14:26:44,940 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-10-12 14:26:44,940 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-10-12 14:26:44,940 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-12 14:26:44,940 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-10-12 14:26:44,940 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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;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=BIGGEST;log-additional-information=true;unknown-allowed=true; [2020-10-12 14:26:45,231 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-12 14:26:45,244 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-12 14:26:45,248 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-12 14:26:45,249 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-12 14:26:45,250 INFO L275 PluginConnector]: CDTParser initialized [2020-10-12 14:26:45,250 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/eca-rers2012/Problem16_label17.c [2020-10-12 14:26:45,307 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6737a1cca/e8fa51469b6945838652905a81575275/FLAG53019f37a [2020-10-12 14:26:45,988 INFO L306 CDTParser]: Found 1 translation units. [2020-10-12 14:26:45,989 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/eca-rers2012/Problem16_label17.c [2020-10-12 14:26:46,017 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6737a1cca/e8fa51469b6945838652905a81575275/FLAG53019f37a [2020-10-12 14:26:46,167 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/6737a1cca/e8fa51469b6945838652905a81575275 [2020-10-12 14:26:46,178 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-12 14:26:46,179 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-12 14:26:46,181 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-12 14:26:46,181 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-12 14:26:46,185 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-12 14:26:46,186 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:26:46" (1/1) ... [2020-10-12 14:26:46,189 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6b9c96c5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:46, skipping insertion in model container [2020-10-12 14:26:46,190 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 12.10 02:26:46" (1/1) ... [2020-10-12 14:26:46,198 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-12 14:26:46,288 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-12 14:26:47,174 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:26:47,184 INFO L203 MainTranslator]: Completed pre-run [2020-10-12 14:26:47,555 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-12 14:26:47,577 INFO L208 MainTranslator]: Completed translation [2020-10-12 14:26:47,578 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:47 WrapperNode [2020-10-12 14:26:47,578 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-12 14:26:47,579 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-12 14:26:47,579 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-12 14:26:47,579 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-12 14:26:47,597 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:47" (1/1) ... [2020-10-12 14:26:47,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:47" (1/1) ... [2020-10-12 14:26:47,650 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:47" (1/1) ... [2020-10-12 14:26:47,654 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:47" (1/1) ... [2020-10-12 14:26:47,716 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:47" (1/1) ... [2020-10-12 14:26:47,731 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:47" (1/1) ... [2020-10-12 14:26:47,748 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:47" (1/1) ... [2020-10-12 14:26:47,764 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-12 14:26:47,764 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-12 14:26:47,765 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-12 14:26:47,765 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-12 14:26:47,766 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:47" (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 [2020-10-12 14:26:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-12 14:26:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-12 14:26:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output [2020-10-12 14:26:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure calculate_output2 [2020-10-12 14:26:47,827 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-12 14:26:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output [2020-10-12 14:26:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure calculate_output2 [2020-10-12 14:26:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-10-12 14:26:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-12 14:26:47,828 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2020-10-12 14:26:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-12 14:26:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-12 14:26:47,829 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-12 14:26:50,080 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-12 14:26:50,080 INFO L295 CfgBuilder]: Removed 1 assume(true) statements. [2020-10-12 14:26:50,088 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:26:50 BoogieIcfgContainer [2020-10-12 14:26:50,088 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-12 14:26:50,090 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-12 14:26:50,090 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-12 14:26:50,093 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-12 14:26:50,094 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 12.10 02:26:46" (1/3) ... [2020-10-12 14:26:50,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2341fca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:26:50, skipping insertion in model container [2020-10-12 14:26:50,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 12.10 02:26:47" (2/3) ... [2020-10-12 14:26:50,095 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2341fca7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 12.10 02:26:50, skipping insertion in model container [2020-10-12 14:26:50,095 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 12.10 02:26:50" (3/3) ... [2020-10-12 14:26:50,097 INFO L109 eAbstractionObserver]: Analyzing ICFG Problem16_label17.c [2020-10-12 14:26:50,109 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-12 14:26:50,117 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-10-12 14:26:50,132 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-10-12 14:26:50,163 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-10-12 14:26:50,163 INFO L376 AbstractCegarLoop]: Hoare is true [2020-10-12 14:26:50,163 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-10-12 14:26:50,163 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-12 14:26:50,164 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-12 14:26:50,164 INFO L380 AbstractCegarLoop]: Difference is false [2020-10-12 14:26:50,164 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-12 14:26:50,164 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-12 14:26:50,202 INFO L276 IsEmpty]: Start isEmpty. Operand 409 states. [2020-10-12 14:26:50,214 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2020-10-12 14:26:50,215 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:26:50,216 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] [2020-10-12 14:26:50,216 INFO L427 AbstractCegarLoop]: === Iteration 1 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:26:50,223 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:26:50,223 INFO L82 PathProgramCache]: Analyzing trace with hash -1802126811, now seen corresponding path program 1 times [2020-10-12 14:26:50,233 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:26:50,233 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2102540936] [2020-10-12 14:26:50,234 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:26:50,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:50,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:50,900 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:50,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 72 [2020-10-12 14:26:50,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:50,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 417 [2020-10-12 14:26:50,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:50,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:26:50,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:26:50,904 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 66 [2020-10-12 14:26:50,904 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:26:51,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:26:51,053 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:51,056 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:51,065 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:51,065 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:26:51,065 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:51,066 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-10-12 14:26:51,066 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:26:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:26:51,066 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:26:51,067 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:51,087 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:26:51,088 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2102540936] [2020-10-12 14:26:51,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:26:51,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-12 14:26:51,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [559972821] [2020-10-12 14:26:51,096 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-10-12 14:26:51,097 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:26:51,111 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-10-12 14:26:51,113 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-10-12 14:26:51,115 INFO L87 Difference]: Start difference. First operand 409 states. Second operand 5 states. [2020-10-12 14:26:56,464 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:26:56,465 INFO L93 Difference]: Finished difference Result 1515 states and 2849 transitions. [2020-10-12 14:26:56,465 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-10-12 14:26:56,466 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 64 [2020-10-12 14:26:56,467 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:26:56,494 INFO L225 Difference]: With dead ends: 1515 [2020-10-12 14:26:56,494 INFO L226 Difference]: Without dead ends: 1038 [2020-10-12 14:26:56,507 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:26:56,527 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1038 states. [2020-10-12 14:26:56,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1038 to 1034. [2020-10-12 14:26:56,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1034 states. [2020-10-12 14:26:56,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1034 states to 1034 states and 1485 transitions. [2020-10-12 14:26:56,631 INFO L78 Accepts]: Start accepts. Automaton has 1034 states and 1485 transitions. Word has length 64 [2020-10-12 14:26:56,632 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:26:56,632 INFO L479 AbstractCegarLoop]: Abstraction has 1034 states and 1485 transitions. [2020-10-12 14:26:56,632 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-10-12 14:26:56,632 INFO L276 IsEmpty]: Start isEmpty. Operand 1034 states and 1485 transitions. [2020-10-12 14:26:56,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 141 [2020-10-12 14:26:56,639 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:26:56,640 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:26:56,640 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-12 14:26:56,641 INFO L427 AbstractCegarLoop]: === Iteration 2 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:26:56,641 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:26:56,641 INFO L82 PathProgramCache]: Analyzing trace with hash -929496232, now seen corresponding path program 1 times [2020-10-12 14:26:56,641 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:26:56,642 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [690291642] [2020-10-12 14:26:56,642 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:26:56,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:56,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:56,951 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:57,613 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:57,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 14:26:57,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:26:57,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 931 [2020-10-12 14:26:57,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:57,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:26:57,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:26:57,616 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-10-12 14:26:57,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-10-12 14:26:57,672 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:26:57,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:57,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:57,681 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:57,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:26:57,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:57,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-10-12 14:26:57,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:57,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:26:57,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:26:57,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:26:57,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:57,701 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:26:57,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:26:57,726 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:26:57,831 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:26:57,831 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 77 [2020-10-12 14:26:57,832 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:26:57,832 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 115 [2020-10-12 14:26:57,832 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:26:57,832 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:26:57,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:26:57,833 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-10-12 14:26:57,833 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:26:57,902 INFO L134 CoverageAnalysis]: Checked inductivity of 57 backedges. 57 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-12 14:26:57,903 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [690291642] [2020-10-12 14:26:57,903 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-12 14:26:57,904 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-12 14:26:57,904 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [841362581] [2020-10-12 14:26:57,905 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:26:57,906 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:26:57,906 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:26:57,906 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:26:57,907 INFO L87 Difference]: Start difference. First operand 1034 states and 1485 transitions. Second operand 7 states. [2020-10-12 14:27:01,999 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:27:02,000 INFO L93 Difference]: Finished difference Result 3124 states and 4560 transitions. [2020-10-12 14:27:02,001 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:27:02,001 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 140 [2020-10-12 14:27:02,003 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:27:02,027 INFO L225 Difference]: With dead ends: 3124 [2020-10-12 14:27:02,028 INFO L226 Difference]: Without dead ends: 2096 [2020-10-12 14:27:02,033 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 11 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=29, Invalid=61, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:27:02,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2096 states. [2020-10-12 14:27:02,155 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2096 to 2064. [2020-10-12 14:27:02,156 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2064 states. [2020-10-12 14:27:02,166 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2064 states to 2064 states and 2672 transitions. [2020-10-12 14:27:02,166 INFO L78 Accepts]: Start accepts. Automaton has 2064 states and 2672 transitions. Word has length 140 [2020-10-12 14:27:02,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:27:02,167 INFO L479 AbstractCegarLoop]: Abstraction has 2064 states and 2672 transitions. [2020-10-12 14:27:02,167 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:27:02,167 INFO L276 IsEmpty]: Start isEmpty. Operand 2064 states and 2672 transitions. [2020-10-12 14:27:02,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 228 [2020-10-12 14:27:02,174 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:27:02,175 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:27:02,175 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-12 14:27:02,175 INFO L427 AbstractCegarLoop]: === Iteration 3 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:27:02,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:27:02,175 INFO L82 PathProgramCache]: Analyzing trace with hash 1679225768, now seen corresponding path program 1 times [2020-10-12 14:27:02,176 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:27:02,176 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1996558801] [2020-10-12 14:27:02,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:27:02,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:02,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:02,494 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:02,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:03,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:03,617 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:04,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:06,812 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:06,812 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 239 [2020-10-12 14:27:06,812 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:27:06,813 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4562 [2020-10-12 14:27:06,813 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:06,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 14:27:06,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:27:06,813 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 233 [2020-10-12 14:27:06,814 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:07,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:27:07,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:07,012 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:07,019 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:07,020 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:27:07,020 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:07,020 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:27:07,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:27:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:07,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:27:07,021 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:07,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:27:07,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:07,080 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:07,138 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:07,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:07,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:27:07,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:27:07,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 213 [2020-10-12 14:27:07,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:07,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:27:07,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:27:07,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 92 [2020-10-12 14:27:07,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:27:07,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:27:07,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:07,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:07,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:07,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:07,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:07,684 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 73 [2020-10-12 14:27:07,684 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:27:07,684 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 281 [2020-10-12 14:27:07,685 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:07,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:27:07,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:27:07,685 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-10-12 14:27:07,686 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:08,070 WARN L193 SmtUtils]: Spent 102.00 ms on a formula simplification. DAG size of input: 46 DAG size of output: 42 [2020-10-12 14:27:08,741 INFO L134 CoverageAnalysis]: Checked inductivity of 186 backedges. 0 proven. 182 refuted. 0 times theorem prover too weak. 4 trivial. 0 not checked. [2020-10-12 14:27:08,742 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1996558801] [2020-10-12 14:27:08,742 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:27:08,742 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [11] total 11 [2020-10-12 14:27:08,743 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1011406767] [2020-10-12 14:27:08,744 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-10-12 14:27:08,744 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:27:08,744 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-10-12 14:27:08,745 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=100, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:27:08,745 INFO L87 Difference]: Start difference. First operand 2064 states and 2672 transitions. Second operand 12 states. [2020-10-12 14:27:17,487 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:27:17,487 INFO L93 Difference]: Finished difference Result 5354 states and 7205 transitions. [2020-10-12 14:27:17,488 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 31 states. [2020-10-12 14:27:17,488 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 227 [2020-10-12 14:27:17,489 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:27:17,515 INFO L225 Difference]: With dead ends: 5354 [2020-10-12 14:27:17,515 INFO L226 Difference]: Without dead ends: 3296 [2020-10-12 14:27:17,523 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 5 SyntacticMatches, 1 SemanticMatches, 35 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 332 ImplicationChecksByTransitivity, 2.3s TimeCoverageRelationStatistics Valid=339, Invalid=993, Unknown=0, NotChecked=0, Total=1332 [2020-10-12 14:27:17,528 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3296 states. [2020-10-12 14:27:17,640 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3296 to 2791. [2020-10-12 14:27:17,640 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2791 states. [2020-10-12 14:27:17,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2791 states to 2791 states and 3725 transitions. [2020-10-12 14:27:17,654 INFO L78 Accepts]: Start accepts. Automaton has 2791 states and 3725 transitions. Word has length 227 [2020-10-12 14:27:17,656 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:27:17,656 INFO L479 AbstractCegarLoop]: Abstraction has 2791 states and 3725 transitions. [2020-10-12 14:27:17,656 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-10-12 14:27:17,657 INFO L276 IsEmpty]: Start isEmpty. Operand 2791 states and 3725 transitions. [2020-10-12 14:27:17,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 406 [2020-10-12 14:27:17,667 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:27:17,668 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:27:17,668 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-12 14:27:17,668 INFO L427 AbstractCegarLoop]: === Iteration 4 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:27:17,669 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:27:17,669 INFO L82 PathProgramCache]: Analyzing trace with hash -429357803, now seen corresponding path program 1 times [2020-10-12 14:27:17,670 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:27:17,678 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [784078119] [2020-10-12 14:27:17,678 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:27:17,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:17,807 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:17,910 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:18,570 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:18,842 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:19,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:22,188 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:22,188 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 419 [2020-10-12 14:27:22,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:27:22,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4429 [2020-10-12 14:27:22,189 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:22,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:27:22,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 101 [2020-10-12 14:27:22,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 255 [2020-10-12 14:27:22,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:22,278 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:27:22,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:22,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:22,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:22,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:27:22,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:22,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:27:22,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:22,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:22,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:22,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:22,285 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:22,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:27:22,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:22,349 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:22,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:22,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 92 [2020-10-12 14:27:22,430 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:22,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 95 [2020-10-12 14:27:22,431 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:22,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:27:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:22,432 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 14:27:22,432 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:27:22,484 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-10-12 14:27:22,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:22,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:22,777 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:22,921 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:22,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 136 [2020-10-12 14:27:22,922 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:27:22,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 396 [2020-10-12 14:27:22,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:27:22,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:27:22,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 136 [2020-10-12 14:27:22,924 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:27:23,090 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-10-12 14:27:23,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:23,137 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:23,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:23,320 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:27:23,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:23,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 203 [2020-10-12 14:27:23,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:23,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:27:23,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:27:23,321 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:27:23,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:23,645 INFO L134 CoverageAnalysis]: Checked inductivity of 468 backedges. 347 proven. 4 refuted. 0 times theorem prover too weak. 117 trivial. 0 not checked. [2020-10-12 14:27:23,645 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [784078119] [2020-10-12 14:27:23,646 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:27:23,646 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:27:23,646 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [591377720] [2020-10-12 14:27:23,647 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:27:23,647 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:27:23,647 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:27:23,648 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=39, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:27:23,648 INFO L87 Difference]: Start difference. First operand 2791 states and 3725 transitions. Second operand 8 states. [2020-10-12 14:27:28,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:27:28,838 INFO L93 Difference]: Finished difference Result 6325 states and 8311 transitions. [2020-10-12 14:27:28,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-12 14:27:28,839 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 405 [2020-10-12 14:27:28,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:27:28,860 INFO L225 Difference]: With dead ends: 6325 [2020-10-12 14:27:28,861 INFO L226 Difference]: Without dead ends: 3153 [2020-10-12 14:27:28,869 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 10 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=60, Invalid=150, Unknown=0, NotChecked=0, Total=210 [2020-10-12 14:27:28,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 3153 states. [2020-10-12 14:27:28,936 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 3153 to 2787. [2020-10-12 14:27:28,936 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 2787 states. [2020-10-12 14:27:28,947 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 2787 states to 2787 states and 3012 transitions. [2020-10-12 14:27:28,947 INFO L78 Accepts]: Start accepts. Automaton has 2787 states and 3012 transitions. Word has length 405 [2020-10-12 14:27:28,947 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:27:28,948 INFO L479 AbstractCegarLoop]: Abstraction has 2787 states and 3012 transitions. [2020-10-12 14:27:28,948 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:27:28,948 INFO L276 IsEmpty]: Start isEmpty. Operand 2787 states and 3012 transitions. [2020-10-12 14:27:28,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 409 [2020-10-12 14:27:28,956 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:27:28,957 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:27:28,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-12 14:27:28,957 INFO L427 AbstractCegarLoop]: === Iteration 5 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:27:28,958 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:27:28,958 INFO L82 PathProgramCache]: Analyzing trace with hash -664696156, now seen corresponding path program 1 times [2020-10-12 14:27:28,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:27:28,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [519384971] [2020-10-12 14:27:28,959 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:27:29,003 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:29,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:29,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:29,336 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:33,296 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:34,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:34,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 422 [2020-10-12 14:27:34,041 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:27:34,047 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5026 [2020-10-12 14:27:34,047 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:34,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:27:34,047 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:27:34,048 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 106 [2020-10-12 14:27:34,048 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:27:34,104 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:27:34,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:34,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:34,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:34,111 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:27:34,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:34,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:27:34,112 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:34,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:27:34,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:34,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:27:34,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:34,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:27:34,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:34,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:34,265 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:34,266 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 101 [2020-10-12 14:27:34,266 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:34,266 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 121 [2020-10-12 14:27:34,267 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:34,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:27:34,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:27:34,267 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 101 [2020-10-12 14:27:34,267 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:34,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 108 [2020-10-12 14:27:34,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:34,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:34,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:34,392 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:27:34,392 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:34,392 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:27:34,392 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:34,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:34,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 127 [2020-10-12 14:27:34,393 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:34,393 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:34,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 237 [2020-10-12 14:27:34,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:34,475 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:34,524 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:34,524 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:27:34,524 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:34,525 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 14:27:34,525 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:34,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:34,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:27:34,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:34,526 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:34,794 INFO L134 CoverageAnalysis]: Checked inductivity of 486 backedges. 171 proven. 190 refuted. 0 times theorem prover too weak. 125 trivial. 0 not checked. [2020-10-12 14:27:34,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [519384971] [2020-10-12 14:27:34,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:27:34,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:27:34,796 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1892133476] [2020-10-12 14:27:34,797 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:27:34,797 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:27:34,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:27:34,798 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:27:34,798 INFO L87 Difference]: Start difference. First operand 2787 states and 3012 transitions. Second operand 7 states. [2020-10-12 14:27:37,897 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:27:37,897 INFO L93 Difference]: Finished difference Result 8366 states and 9154 transitions. [2020-10-12 14:27:37,898 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:27:37,898 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 408 [2020-10-12 14:27:37,899 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:27:37,924 INFO L225 Difference]: With dead ends: 8366 [2020-10-12 14:27:37,924 INFO L226 Difference]: Without dead ends: 5585 [2020-10-12 14:27:37,933 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:27:37,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5585 states. [2020-10-12 14:27:38,050 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5585 to 5558. [2020-10-12 14:27:38,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5558 states. [2020-10-12 14:27:38,061 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5558 states to 5558 states and 6023 transitions. [2020-10-12 14:27:38,062 INFO L78 Accepts]: Start accepts. Automaton has 5558 states and 6023 transitions. Word has length 408 [2020-10-12 14:27:38,062 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:27:38,062 INFO L479 AbstractCegarLoop]: Abstraction has 5558 states and 6023 transitions. [2020-10-12 14:27:38,062 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:27:38,063 INFO L276 IsEmpty]: Start isEmpty. Operand 5558 states and 6023 transitions. [2020-10-12 14:27:38,077 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 512 [2020-10-12 14:27:38,077 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:27:38,078 INFO L422 BasicCegarLoop]: trace histogram [4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:27:38,078 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-12 14:27:38,078 INFO L427 AbstractCegarLoop]: === Iteration 6 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:27:38,078 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:27:38,079 INFO L82 PathProgramCache]: Analyzing trace with hash -1416959279, now seen corresponding path program 1 times [2020-10-12 14:27:38,079 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:27:38,079 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1894254848] [2020-10-12 14:27:38,080 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:27:38,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:38,227 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:38,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:38,811 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:40,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:43,185 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:43,185 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 525 [2020-10-12 14:27:43,185 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:27:43,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5009 [2020-10-12 14:27:43,186 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:43,186 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-10-12 14:27:43,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:27:43,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-12 14:27:43,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:27:43,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:27:43,409 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:43,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:43,418 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:43,418 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:27:43,418 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:43,419 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-10-12 14:27:43,419 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:27:43,419 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:27:43,420 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:27:43,420 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:43,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:27:43,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:43,522 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:43,795 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:44,367 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:44,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:27:44,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:27:44,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 878 [2020-10-12 14:27:44,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 11 [2020-10-12 14:27:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:27:44,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:27:44,369 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:45,327 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 66 DAG size of output: 51 [2020-10-12 14:27:45,515 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification. DAG size of input: 65 DAG size of output: 52 [2020-10-12 14:27:45,725 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 57 [2020-10-12 14:27:45,927 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 56 [2020-10-12 14:27:46,142 WARN L193 SmtUtils]: Spent 183.00 ms on a formula simplification. DAG size of input: 68 DAG size of output: 55 [2020-10-12 14:27:46,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-10-12 14:27:46,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:46,907 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:46,942 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:46,942 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:27:46,942 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:46,942 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:27:46,942 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:46,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:46,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 113 [2020-10-12 14:27:46,943 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:46,943 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:46,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 372 [2020-10-12 14:27:46,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:46,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:47,015 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:27:47,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:27:47,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:27:47,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:27:47,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:27:47,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:27:47,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-10-12 14:27:47,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:27:47,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:27:48,517 INFO L134 CoverageAnalysis]: Checked inductivity of 452 backedges. 171 proven. 188 refuted. 0 times theorem prover too weak. 93 trivial. 0 not checked. [2020-10-12 14:27:48,517 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1894254848] [2020-10-12 14:27:48,517 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:27:48,518 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [13] total 13 [2020-10-12 14:27:48,518 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1519275831] [2020-10-12 14:27:48,519 INFO L459 AbstractCegarLoop]: Interpolant automaton has 13 states [2020-10-12 14:27:48,519 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:27:48,519 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2020-10-12 14:27:48,519 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=36, Invalid=120, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:27:48,520 INFO L87 Difference]: Start difference. First operand 5558 states and 6023 transitions. Second operand 13 states. [2020-10-12 14:27:49,427 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 54 [2020-10-12 14:27:49,801 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 76 DAG size of output: 56 [2020-10-12 14:27:50,147 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification. DAG size of input: 81 DAG size of output: 61 [2020-10-12 14:27:50,567 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification. DAG size of input: 80 DAG size of output: 60 [2020-10-12 14:27:51,032 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification. DAG size of input: 79 DAG size of output: 59 [2020-10-12 14:27:51,362 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification. DAG size of input: 99 DAG size of output: 62 [2020-10-12 14:27:52,182 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 69 DAG size of output: 62 [2020-10-12 14:27:52,559 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 70 DAG size of output: 63 [2020-10-12 14:27:52,824 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 69 [2020-10-12 14:27:53,158 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification. DAG size of input: 74 DAG size of output: 68 [2020-10-12 14:27:53,535 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 73 DAG size of output: 67 [2020-10-12 14:27:53,784 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification. DAG size of input: 93 DAG size of output: 82 [2020-10-12 14:27:54,459 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification. DAG size of input: 75 DAG size of output: 70 [2020-10-12 14:27:55,051 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:27:55,051 INFO L93 Difference]: Finished difference Result 11119 states and 12055 transitions. [2020-10-12 14:27:55,052 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-10-12 14:27:55,052 INFO L78 Accepts]: Start accepts. Automaton has 13 states. Word has length 511 [2020-10-12 14:27:55,053 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:27:55,075 INFO L225 Difference]: With dead ends: 11119 [2020-10-12 14:27:55,076 INFO L226 Difference]: Without dead ends: 5475 [2020-10-12 14:27:55,089 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 11 SyntacticMatches, 1 SemanticMatches, 28 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 169 ImplicationChecksByTransitivity, 3.8s TimeCoverageRelationStatistics Valid=254, Invalid=616, Unknown=0, NotChecked=0, Total=870 [2020-10-12 14:27:55,095 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5475 states. [2020-10-12 14:27:55,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5475 to 5465. [2020-10-12 14:27:55,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5465 states. [2020-10-12 14:27:55,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5465 states to 5465 states and 5927 transitions. [2020-10-12 14:27:55,207 INFO L78 Accepts]: Start accepts. Automaton has 5465 states and 5927 transitions. Word has length 511 [2020-10-12 14:27:55,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:27:55,208 INFO L479 AbstractCegarLoop]: Abstraction has 5465 states and 5927 transitions. [2020-10-12 14:27:55,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 13 states. [2020-10-12 14:27:55,208 INFO L276 IsEmpty]: Start isEmpty. Operand 5465 states and 5927 transitions. [2020-10-12 14:27:55,225 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 631 [2020-10-12 14:27:55,225 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:27:55,226 INFO L422 BasicCegarLoop]: trace histogram [5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:27:55,226 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-12 14:27:55,226 INFO L427 AbstractCegarLoop]: === Iteration 7 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:27:55,227 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:27:55,227 INFO L82 PathProgramCache]: Analyzing trace with hash 1227418657, now seen corresponding path program 1 times [2020-10-12 14:27:55,227 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:27:55,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981014508] [2020-10-12 14:27:55,228 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:27:55,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:27:55,384 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:55,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:56,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:27:57,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:00,339 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:00,340 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 646 [2020-10-12 14:28:00,340 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:28:00,340 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5004 [2020-10-12 14:28:00,340 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:00,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:00,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 582 [2020-10-12 14:28:00,341 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 63 [2020-10-12 14:28:00,341 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:00,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:00,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:00,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:00,436 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:00,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:00,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:00,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:28:00,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:00,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:00,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:00,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:00,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:00,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:00,503 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:00,504 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:28:00,504 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:00,504 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:28:00,504 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:00,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:00,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:00,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:00,505 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:00,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:28:00,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:00,564 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:00,582 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:00,582 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:28:00,582 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:00,583 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:28:00,583 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:00,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:00,583 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:00,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:28:00,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:00,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:00,628 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:00,628 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:28:00,628 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:00,628 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 16 [2020-10-12 14:28:00,629 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:00,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:00,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:00,629 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:00,629 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:00,646 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:28:00,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:00,659 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:00,687 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:00,687 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:28:00,688 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:00,688 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 32 [2020-10-12 14:28:00,688 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:00,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:00,688 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:00,689 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-10-12 14:28:00,689 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:00,932 INFO L134 CoverageAnalysis]: Checked inductivity of 836 backedges. 233 proven. 4 refuted. 0 times theorem prover too weak. 599 trivial. 0 not checked. [2020-10-12 14:28:00,932 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981014508] [2020-10-12 14:28:00,932 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:00,933 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [6] total 6 [2020-10-12 14:28:00,933 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000513830] [2020-10-12 14:28:00,933 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-12 14:28:00,933 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:00,934 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-12 14:28:00,934 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-12 14:28:00,934 INFO L87 Difference]: Start difference. First operand 5465 states and 5927 transitions. Second operand 6 states. [2020-10-12 14:28:03,440 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:03,440 INFO L93 Difference]: Finished difference Result 12047 states and 13248 transitions. [2020-10-12 14:28:03,441 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-12 14:28:03,441 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 630 [2020-10-12 14:28:03,442 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:03,483 INFO L225 Difference]: With dead ends: 12047 [2020-10-12 14:28:03,483 INFO L226 Difference]: Without dead ends: 6832 [2020-10-12 14:28:03,496 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 12 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:28:03,504 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6832 states. [2020-10-12 14:28:03,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6832 to 6491. [2020-10-12 14:28:03,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6491 states. [2020-10-12 14:28:03,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6491 states to 6491 states and 7143 transitions. [2020-10-12 14:28:03,650 INFO L78 Accepts]: Start accepts. Automaton has 6491 states and 7143 transitions. Word has length 630 [2020-10-12 14:28:03,651 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:03,651 INFO L479 AbstractCegarLoop]: Abstraction has 6491 states and 7143 transitions. [2020-10-12 14:28:03,651 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-12 14:28:03,651 INFO L276 IsEmpty]: Start isEmpty. Operand 6491 states and 7143 transitions. [2020-10-12 14:28:03,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 856 [2020-10-12 14:28:03,693 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:03,694 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:28:03,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-10-12 14:28:03,695 INFO L427 AbstractCegarLoop]: === Iteration 8 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:03,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:03,695 INFO L82 PathProgramCache]: Analyzing trace with hash -1321432721, now seen corresponding path program 1 times [2020-10-12 14:28:03,699 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:03,700 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1022110114] [2020-10-12 14:28:03,700 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:03,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:03,916 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:04,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:04,309 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:08,877 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:08,877 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 873 [2020-10-12 14:28:08,878 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:28:08,878 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5039 [2020-10-12 14:28:08,878 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:08,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:08,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 380 [2020-10-12 14:28:08,878 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 14:28:08,878 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:08,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:08,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:08,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:08,961 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:08,961 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:08,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:08,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:28:08,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:08,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:08,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:08,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:08,974 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:08,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:08,986 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:09,024 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:09,025 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:28:09,025 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:09,025 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:28:09,025 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:09,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:09,025 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:09,026 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:09,026 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:09,079 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:28:09,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:09,107 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:09,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:09,157 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:28:09,157 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:09,157 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 63 [2020-10-12 14:28:09,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:09,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:09,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:09,158 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-10-12 14:28:09,158 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:09,181 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 376 [2020-10-12 14:28:09,193 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:09,201 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:09,268 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:09,269 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:28:09,269 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:09,269 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 14:28:09,269 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:09,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:09,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:09,269 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:28:09,270 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:09,306 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 491 [2020-10-12 14:28:09,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:09,325 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:09,346 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:09,346 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:28:09,346 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:09,347 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:28:09,347 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:09,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:09,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:28:09,347 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:09,347 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:09,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 601 [2020-10-12 14:28:09,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:09,410 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:09,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:09,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-12 14:28:09,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:09,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:28:09,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 14:28:09,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:09,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:09,808 INFO L134 CoverageAnalysis]: Checked inductivity of 1526 backedges. 530 proven. 221 refuted. 0 times theorem prover too weak. 775 trivial. 0 not checked. [2020-10-12 14:28:09,809 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1022110114] [2020-10-12 14:28:09,809 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:09,809 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:28:09,809 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1562132935] [2020-10-12 14:28:09,810 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:28:09,811 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:09,811 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:28:09,811 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:28:09,811 INFO L87 Difference]: Start difference. First operand 6491 states and 7143 transitions. Second operand 7 states. [2020-10-12 14:28:13,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:13,116 INFO L93 Difference]: Finished difference Result 15810 states and 17732 transitions. [2020-10-12 14:28:13,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:28:13,117 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 855 [2020-10-12 14:28:13,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:13,144 INFO L225 Difference]: With dead ends: 15810 [2020-10-12 14:28:13,144 INFO L226 Difference]: Without dead ends: 9569 [2020-10-12 14:28:13,158 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 16 SyntacticMatches, 1 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:28:13,169 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 9569 states. [2020-10-12 14:28:13,307 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 9569 to 9544. [2020-10-12 14:28:13,307 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 9544 states. [2020-10-12 14:28:13,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 9544 states to 9544 states and 10316 transitions. [2020-10-12 14:28:13,324 INFO L78 Accepts]: Start accepts. Automaton has 9544 states and 10316 transitions. Word has length 855 [2020-10-12 14:28:13,325 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:13,325 INFO L479 AbstractCegarLoop]: Abstraction has 9544 states and 10316 transitions. [2020-10-12 14:28:13,325 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:28:13,326 INFO L276 IsEmpty]: Start isEmpty. Operand 9544 states and 10316 transitions. [2020-10-12 14:28:13,353 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 919 [2020-10-12 14:28:13,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:13,354 INFO L422 BasicCegarLoop]: trace histogram [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, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:28:13,355 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-10-12 14:28:13,355 INFO L427 AbstractCegarLoop]: === Iteration 9 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:13,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:13,355 INFO L82 PathProgramCache]: Analyzing trace with hash -297897834, now seen corresponding path program 1 times [2020-10-12 14:28:13,356 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:13,356 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [989476725] [2020-10-12 14:28:13,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:13,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:13,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:13,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:13,954 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:18,542 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:18,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 936 [2020-10-12 14:28:18,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:28:18,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5046 [2020-10-12 14:28:18,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:18,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:18,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 249 [2020-10-12 14:28:18,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 166 [2020-10-12 14:28:18,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:18,609 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:18,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:18,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:18,614 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:18,614 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:18,614 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:18,614 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:28:18,615 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:18,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:18,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:18,615 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:18,615 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:18,627 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:18,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:18,679 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:18,765 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:18,765 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:28:18,765 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:18,766 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 105 [2020-10-12 14:28:18,766 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:18,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:18,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:18,766 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 234 [2020-10-12 14:28:18,766 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:18,817 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:28:18,841 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:18,854 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:18,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:18,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 164 [2020-10-12 14:28:18,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:18,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-10-12 14:28:18,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:18,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:18,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:18,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 164 [2020-10-12 14:28:18,963 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:19,016 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 410 [2020-10-12 14:28:19,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:19,047 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:19,077 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:19,077 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:28:19,077 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:19,077 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-10-12 14:28:19,078 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:28:19,078 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:19,078 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:19,101 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 554 [2020-10-12 14:28:19,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:19,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:19,144 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:19,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:28:19,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:19,145 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:28:19,145 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:19,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:19,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:28:19,145 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:19,145 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:19,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 664 [2020-10-12 14:28:19,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:19,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:19,255 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:19,255 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-12 14:28:19,255 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:19,255 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:28:19,256 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 14:28:19,256 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:19,256 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:19,728 INFO L134 CoverageAnalysis]: Checked inductivity of 1681 backedges. 457 proven. 410 refuted. 0 times theorem prover too weak. 814 trivial. 0 not checked. [2020-10-12 14:28:19,729 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [989476725] [2020-10-12 14:28:19,729 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:19,729 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:28:19,730 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1816915899] [2020-10-12 14:28:19,732 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:28:19,732 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:19,732 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:28:19,733 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:28:19,733 INFO L87 Difference]: Start difference. First operand 9544 states and 10316 transitions. Second operand 7 states. [2020-10-12 14:28:22,633 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:22,633 INFO L93 Difference]: Finished difference Result 22243 states and 24441 transitions. [2020-10-12 14:28:22,634 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:28:22,634 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 918 [2020-10-12 14:28:22,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:22,672 INFO L225 Difference]: With dead ends: 22243 [2020-10-12 14:28:22,672 INFO L226 Difference]: Without dead ends: 12949 [2020-10-12 14:28:22,687 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:28:22,702 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12949 states. [2020-10-12 14:28:22,880 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12949 to 12602. [2020-10-12 14:28:22,880 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12602 states. [2020-10-12 14:28:22,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12602 states to 12602 states and 13788 transitions. [2020-10-12 14:28:22,903 INFO L78 Accepts]: Start accepts. Automaton has 12602 states and 13788 transitions. Word has length 918 [2020-10-12 14:28:22,904 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:22,904 INFO L479 AbstractCegarLoop]: Abstraction has 12602 states and 13788 transitions. [2020-10-12 14:28:22,905 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:28:22,905 INFO L276 IsEmpty]: Start isEmpty. Operand 12602 states and 13788 transitions. [2020-10-12 14:28:22,940 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1217 [2020-10-12 14:28:22,941 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:22,942 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:28:22,942 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-10-12 14:28:22,942 INFO L427 AbstractCegarLoop]: === Iteration 10 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:22,943 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:22,943 INFO L82 PathProgramCache]: Analyzing trace with hash 752956600, now seen corresponding path program 1 times [2020-10-12 14:28:22,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:22,944 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [353371451] [2020-10-12 14:28:22,944 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:23,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:23,220 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:23,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:23,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:24,020 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:27,517 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:28,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:28,169 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1238 [2020-10-12 14:28:28,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:28:28,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-10-12 14:28:28,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:28:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:28:28,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 496 [2020-10-12 14:28:28,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:28,254 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:28,257 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:28,259 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:28,261 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:28,261 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:28,262 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:28,262 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:28:28,262 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:28,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:28,262 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:28,263 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:28:28,263 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:28,279 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:28,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:28,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:28,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:28,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:28:28,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:28,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 177 [2020-10-12 14:28:28,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:28,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:28,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:28,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 240 [2020-10-12 14:28:28,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:28,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:28:28,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:28,651 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:28,847 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:28,848 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:28:28,848 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:28,848 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 216 [2020-10-12 14:28:28,849 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:28,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:28,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:28,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:28:28,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:28,961 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 496 [2020-10-12 14:28:28,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:28,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:28,989 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:28,989 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:28:28,989 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:28,989 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:28:28,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-12 14:28:28,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:28,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:29,002 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 566 [2020-10-12 14:28:29,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:29,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:29,060 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:29,060 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:28:29,060 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:29,061 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:28:29,061 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:29,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:29,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:28:29,061 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:29,061 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:29,084 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 710 [2020-10-12 14:28:29,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:29,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:29,137 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:29,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:28:29,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:29,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:28:29,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:28:29,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:29,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:29,176 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 852 [2020-10-12 14:28:29,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:29,196 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:29,217 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:29,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:28:29,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:29,218 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:28:29,218 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:29,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:29,218 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:28:29,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:29,219 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:29,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 962 [2020-10-12 14:28:29,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:29,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:29,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:29,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-12 14:28:29,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:29,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-10-12 14:28:29,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 14:28:29,450 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:29,450 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:30,185 INFO L134 CoverageAnalysis]: Checked inductivity of 3004 backedges. 420 proven. 1280 refuted. 0 times theorem prover too weak. 1304 trivial. 0 not checked. [2020-10-12 14:28:30,186 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [353371451] [2020-10-12 14:28:30,186 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:30,186 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:28:30,186 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1756702541] [2020-10-12 14:28:30,187 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:28:30,187 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:30,187 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:28:30,188 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:28:30,188 INFO L87 Difference]: Start difference. First operand 12602 states and 13788 transitions. Second operand 7 states. [2020-10-12 14:28:32,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:32,964 INFO L93 Difference]: Finished difference Result 25311 states and 27730 transitions. [2020-10-12 14:28:32,966 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-12 14:28:32,966 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1216 [2020-10-12 14:28:32,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:32,998 INFO L225 Difference]: With dead ends: 25311 [2020-10-12 14:28:32,998 INFO L226 Difference]: Without dead ends: 12959 [2020-10-12 14:28:33,022 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 18 SyntacticMatches, 2 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=36, Invalid=74, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:28:33,038 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 12959 states. [2020-10-12 14:28:33,209 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 12959 to 12947. [2020-10-12 14:28:33,209 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 12947 states. [2020-10-12 14:28:33,231 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 12947 states to 12947 states and 14158 transitions. [2020-10-12 14:28:33,232 INFO L78 Accepts]: Start accepts. Automaton has 12947 states and 14158 transitions. Word has length 1216 [2020-10-12 14:28:33,233 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:33,233 INFO L479 AbstractCegarLoop]: Abstraction has 12947 states and 14158 transitions. [2020-10-12 14:28:33,233 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:28:33,233 INFO L276 IsEmpty]: Start isEmpty. Operand 12947 states and 14158 transitions. [2020-10-12 14:28:33,268 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1225 [2020-10-12 14:28:33,268 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:33,271 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-10-12 14:28:33,271 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-10-12 14:28:33,271 INFO L427 AbstractCegarLoop]: === Iteration 11 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:33,271 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:33,272 INFO L82 PathProgramCache]: Analyzing trace with hash 2040623944, now seen corresponding path program 1 times [2020-10-12 14:28:33,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:33,274 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1349385793] [2020-10-12 14:28:33,274 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:33,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:33,549 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:33,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:33,876 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:34,718 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:37,973 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:38,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:38,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1246 [2020-10-12 14:28:38,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-10-12 14:28:38,474 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-10-12 14:28:38,474 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:38,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-10-12 14:28:38,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 5 [2020-10-12 14:28:38,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 504 [2020-10-12 14:28:38,475 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:38,612 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:38,614 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:38,615 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:38,619 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:38,619 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:38,619 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:38,619 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-10-12 14:28:38,620 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:38,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:38,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:38,620 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-10-12 14:28:38,620 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:38,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:38,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:38,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:38,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:38,929 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:38,929 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 248 [2020-10-12 14:28:38,929 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:28:38,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 262 [2020-10-12 14:28:38,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:38,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:38,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:38,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 248 [2020-10-12 14:28:38,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:39,217 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 255 [2020-10-12 14:28:39,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:39,264 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,428 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:39,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 250 [2020-10-12 14:28:39,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:39,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 182 [2020-10-12 14:28:39,429 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:39,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 250 [2020-10-12 14:28:39,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:39,580 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 504 [2020-10-12 14:28:39,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:39,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,600 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:39,600 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:28:39,600 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:39,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-10-12 14:28:39,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:39,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 68 [2020-10-12 14:28:39,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:39,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:39,608 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 574 [2020-10-12 14:28:39,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:39,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,661 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:39,661 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:28:39,662 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:39,662 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:28:39,662 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:39,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:39,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 142 [2020-10-12 14:28:39,662 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:39,662 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:39,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 718 [2020-10-12 14:28:39,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:39,735 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:39,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:28:39,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:39,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 50 [2020-10-12 14:28:39,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:39,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:39,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 140 [2020-10-12 14:28:39,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:39,773 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:39,799 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 860 [2020-10-12 14:28:39,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:39,821 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:39,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:28:39,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:39,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 30 [2020-10-12 14:28:39,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:39,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:39,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:28:39,845 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:39,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:39,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 970 [2020-10-12 14:28:39,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:39,908 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:39,953 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:39,953 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-10-12 14:28:39,953 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:39,954 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 14:28:39,954 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:39,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:39,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 196 [2020-10-12 14:28:39,954 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:39,954 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:41,886 INFO L134 CoverageAnalysis]: Checked inductivity of 3012 backedges. 660 proven. 1280 refuted. 0 times theorem prover too weak. 1072 trivial. 0 not checked. [2020-10-12 14:28:41,886 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1349385793] [2020-10-12 14:28:41,886 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:41,886 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9] total 9 [2020-10-12 14:28:41,886 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [765430616] [2020-10-12 14:28:41,888 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-12 14:28:41,888 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:41,888 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-12 14:28:41,888 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2020-10-12 14:28:41,889 INFO L87 Difference]: Start difference. First operand 12947 states and 14158 transitions. Second operand 9 states. [2020-10-12 14:28:46,225 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:46,225 INFO L93 Difference]: Finished difference Result 28023 states and 30941 transitions. [2020-10-12 14:28:46,226 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-10-12 14:28:46,227 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 1224 [2020-10-12 14:28:46,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:46,265 INFO L225 Difference]: With dead ends: 28023 [2020-10-12 14:28:46,265 INFO L226 Difference]: Without dead ends: 15665 [2020-10-12 14:28:46,289 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=88, Invalid=218, Unknown=0, NotChecked=0, Total=306 [2020-10-12 14:28:46,306 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 15665 states. [2020-10-12 14:28:46,508 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 15665 to 14985. [2020-10-12 14:28:46,508 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 14985 states. [2020-10-12 14:28:46,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 14985 states to 14985 states and 16546 transitions. [2020-10-12 14:28:46,538 INFO L78 Accepts]: Start accepts. Automaton has 14985 states and 16546 transitions. Word has length 1224 [2020-10-12 14:28:46,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:46,539 INFO L479 AbstractCegarLoop]: Abstraction has 14985 states and 16546 transitions. [2020-10-12 14:28:46,540 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-12 14:28:46,540 INFO L276 IsEmpty]: Start isEmpty. Operand 14985 states and 16546 transitions. [2020-10-12 14:28:46,582 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1324 [2020-10-12 14:28:46,582 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:46,584 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:28:46,584 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-10-12 14:28:46,584 INFO L427 AbstractCegarLoop]: === Iteration 12 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:46,585 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:46,585 INFO L82 PathProgramCache]: Analyzing trace with hash 1907805621, now seen corresponding path program 1 times [2020-10-12 14:28:46,585 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:46,586 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1049663810] [2020-10-12 14:28:46,586 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:46,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:46,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:47,174 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:51,223 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:51,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:51,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:51,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1345 [2020-10-12 14:28:51,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:28:51,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-10-12 14:28:51,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:51,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-10-12 14:28:51,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1016 [2020-10-12 14:28:51,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 266 [2020-10-12 14:28:51,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:52,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:28:52,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:52,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:52,010 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:52,010 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:28:52,010 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:52,010 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-10-12 14:28:52,011 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:52,011 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:52,011 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:52,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:28:52,039 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:52,042 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:52,110 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:52,110 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:28:52,111 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:52,111 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 69 [2020-10-12 14:28:52,111 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:52,111 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:52,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:52,112 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:52,112 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-10-12 14:28:52,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:28:52,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:52,214 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:52,252 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:52,252 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:28:52,253 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:52,253 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:28:52,253 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:52,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:52,253 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:52,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:52,254 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:52,315 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:28:52,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:52,324 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:52,356 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:52,356 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:28:52,356 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:52,356 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 33 [2020-10-12 14:28:52,357 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:52,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:52,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:52,357 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:52,357 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:52,400 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:28:52,412 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:52,415 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:52,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:52,470 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:28:52,470 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:52,470 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 14:28:52,470 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:52,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:28:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:52,471 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:28:52,471 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:52,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-12 14:28:52,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:52,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:52,704 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:52,705 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:28:52,705 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:52,705 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-10-12 14:28:52,705 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:52,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:28:52,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:28:52,705 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:28:52,705 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:52,772 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-12 14:28:52,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:52,794 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:52,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:52,870 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:52,870 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 113 [2020-10-12 14:28:52,870 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-10-12 14:28:52,870 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 83 [2020-10-12 14:28:52,871 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:52,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:52,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:52,871 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:28:52,871 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:52,902 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1118 [2020-10-12 14:28:52,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:52,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:53,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:28:53,018 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 14:28:53,018 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:28:53,018 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 93 [2020-10-12 14:28:53,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:28:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:28:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:28:53,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 150 [2020-10-12 14:28:53,019 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:28:53,875 INFO L134 CoverageAnalysis]: Checked inductivity of 3427 backedges. 1682 proven. 111 refuted. 0 times theorem prover too weak. 1634 trivial. 0 not checked. [2020-10-12 14:28:53,876 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1049663810] [2020-10-12 14:28:53,876 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:28:53,876 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [8] total 8 [2020-10-12 14:28:53,876 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [28112204] [2020-10-12 14:28:53,877 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-10-12 14:28:53,878 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:28:53,878 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-10-12 14:28:53,878 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2020-10-12 14:28:53,878 INFO L87 Difference]: Start difference. First operand 14985 states and 16546 transitions. Second operand 8 states. [2020-10-12 14:28:58,263 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:28:58,263 INFO L93 Difference]: Finished difference Result 34460 states and 38159 transitions. [2020-10-12 14:28:58,265 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:28:58,265 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 1323 [2020-10-12 14:28:58,267 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:28:58,308 INFO L225 Difference]: With dead ends: 34460 [2020-10-12 14:28:58,308 INFO L226 Difference]: Without dead ends: 19705 [2020-10-12 14:28:58,326 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 17 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=57, Invalid=125, Unknown=0, NotChecked=0, Total=182 [2020-10-12 14:28:58,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 19705 states. [2020-10-12 14:28:58,556 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 19705 to 15320. [2020-10-12 14:28:58,558 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 15320 states. [2020-10-12 14:28:58,585 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 15320 states to 15320 states and 16648 transitions. [2020-10-12 14:28:58,586 INFO L78 Accepts]: Start accepts. Automaton has 15320 states and 16648 transitions. Word has length 1323 [2020-10-12 14:28:58,587 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:28:58,588 INFO L479 AbstractCegarLoop]: Abstraction has 15320 states and 16648 transitions. [2020-10-12 14:28:58,588 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-10-12 14:28:58,588 INFO L276 IsEmpty]: Start isEmpty. Operand 15320 states and 16648 transitions. [2020-10-12 14:28:58,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1425 [2020-10-12 14:28:58,633 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:28:58,634 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:28:58,634 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2020-10-12 14:28:58,634 INFO L427 AbstractCegarLoop]: === Iteration 13 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:28:58,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:28:58,635 INFO L82 PathProgramCache]: Analyzing trace with hash 1990192678, now seen corresponding path program 1 times [2020-10-12 14:28:58,635 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:28:58,636 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1469599748] [2020-10-12 14:28:58,637 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:28:58,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:28:58,943 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:59,128 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:28:59,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:01,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:03,873 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:03,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1450 [2020-10-12 14:29:03,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:29:03,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5032 [2020-10-12 14:29:03,873 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:03,873 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 906 [2020-10-12 14:29:03,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 113 [2020-10-12 14:29:03,874 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:03,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:03,992 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:03,993 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:03,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:03,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:03,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:03,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:29:03,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:03,994 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:03,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:03,995 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:04,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:04,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:04,019 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:04,059 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:04,059 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:29:04,059 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:04,059 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-10-12 14:29:04,060 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:04,060 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:04,060 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:04,110 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:29:04,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:04,116 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:04,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:04,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:29:04,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:04,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:29:04,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:04,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:04,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:04,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:04,139 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:04,168 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:29:04,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:04,173 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:04,193 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:04,194 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:29:04,194 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:04,194 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:29:04,194 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:04,194 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:04,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:04,195 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:04,195 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:04,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:29:04,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:04,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:04,241 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:04,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:29:04,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:04,242 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:29:04,242 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:04,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:04,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:04,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:04,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:04,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:29:04,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:04,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:04,278 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:04,278 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:29:04,278 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:04,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 21 [2020-10-12 14:29:04,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:04,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:04,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:04,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:04,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:04,313 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2020-10-12 14:29:04,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:04,341 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:04,388 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:04,388 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 143 [2020-10-12 14:29:04,388 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:04,388 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 56 [2020-10-12 14:29:04,388 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:04,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:04,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:04,389 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 137 [2020-10-12 14:29:04,389 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:04,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 894 [2020-10-12 14:29:04,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:04,444 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:04,511 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:04,511 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:29:04,511 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:04,511 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 14:29:04,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:04,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:04,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:04,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 111 [2020-10-12 14:29:04,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:04,575 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2020-10-12 14:29:04,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:04,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:04,665 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:04,665 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:29:04,665 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:04,665 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 60 [2020-10-12 14:29:04,665 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:04,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:04,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:29:04,666 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:04,666 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:04,712 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1219 [2020-10-12 14:29:04,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:04,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:04,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:04,771 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 14:29:04,771 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:04,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:29:04,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:04,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-12 14:29:04,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:04,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:05,795 INFO L134 CoverageAnalysis]: Checked inductivity of 4889 backedges. 1188 proven. 216 refuted. 0 times theorem prover too weak. 3485 trivial. 0 not checked. [2020-10-12 14:29:05,795 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1469599748] [2020-10-12 14:29:05,795 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:05,795 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:29:05,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [350193941] [2020-10-12 14:29:05,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:29:05,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:05,797 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:29:05,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:29:05,797 INFO L87 Difference]: Start difference. First operand 15320 states and 16648 transitions. Second operand 7 states. [2020-10-12 14:29:09,540 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:29:09,540 INFO L93 Difference]: Finished difference Result 31072 states and 33844 transitions. [2020-10-12 14:29:09,541 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-12 14:29:09,541 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1424 [2020-10-12 14:29:09,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:29:09,576 INFO L225 Difference]: With dead ends: 31072 [2020-10-12 14:29:09,576 INFO L226 Difference]: Without dead ends: 16341 [2020-10-12 14:29:09,598 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:29:09,614 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16341 states. [2020-10-12 14:29:09,798 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16341 to 16337. [2020-10-12 14:29:09,799 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16337 states. [2020-10-12 14:29:09,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16337 states to 16337 states and 17668 transitions. [2020-10-12 14:29:09,825 INFO L78 Accepts]: Start accepts. Automaton has 16337 states and 17668 transitions. Word has length 1424 [2020-10-12 14:29:09,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:29:09,826 INFO L479 AbstractCegarLoop]: Abstraction has 16337 states and 17668 transitions. [2020-10-12 14:29:09,826 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:29:09,826 INFO L276 IsEmpty]: Start isEmpty. Operand 16337 states and 17668 transitions. [2020-10-12 14:29:09,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1427 [2020-10-12 14:29:09,862 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:29:09,863 INFO L422 BasicCegarLoop]: trace histogram [8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:29:09,864 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2020-10-12 14:29:09,864 INFO L427 AbstractCegarLoop]: === Iteration 14 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:29:09,864 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:29:09,865 INFO L82 PathProgramCache]: Analyzing trace with hash 239333762, now seen corresponding path program 1 times [2020-10-12 14:29:09,865 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:29:09,865 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1967110505] [2020-10-12 14:29:09,866 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:29:10,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:10,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:10,634 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:11,387 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:15,231 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:15,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1448 [2020-10-12 14:29:15,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-10-12 14:29:15,232 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5092 [2020-10-12 14:29:15,232 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:15,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:15,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-12 14:29:15,232 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-12 14:29:15,233 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,360 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:15,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,362 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:15,363 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:15,363 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:15,364 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:15,364 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:29:15,364 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:15,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:15,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:15,364 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:15,364 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,379 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:15,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,389 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:15,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:15,426 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:29:15,427 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:15,427 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:29:15,427 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:15,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:15,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:15,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:15,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,474 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:29:15,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,481 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:15,505 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:15,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:29:15,505 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:15,505 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:29:15,505 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:15,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:15,505 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:15,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:15,506 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,531 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:29:15,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,537 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:15,567 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:15,568 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:29:15,568 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:15,568 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:29:15,568 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:15,568 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:15,568 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:29:15,612 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:15,721 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:15,722 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:29:15,722 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:15,722 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 108 [2020-10-12 14:29:15,722 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:15,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:15,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:15,722 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-12 14:29:15,723 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:15,780 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-12 14:29:15,829 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:15,857 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:16,062 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:16,063 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:29:16,063 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:16,063 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 232 [2020-10-12 14:29:16,063 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:16,063 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-12 14:29:16,064 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:16,572 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1006 [2020-10-12 14:29:16,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:16,625 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:16,675 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:16,675 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:29:16,675 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:16,676 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 68 [2020-10-12 14:29:16,676 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:16,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:16,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:29:16,676 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:16,676 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:16,729 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1221 [2020-10-12 14:29:16,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:16,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:16,793 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:16,793 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 14:29:16,794 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:16,794 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:29:16,794 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-12 14:29:16,794 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:16,794 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:18,622 INFO L134 CoverageAnalysis]: Checked inductivity of 3820 backedges. 1159 proven. 360 refuted. 0 times theorem prover too weak. 2301 trivial. 0 not checked. [2020-10-12 14:29:18,622 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1967110505] [2020-10-12 14:29:18,622 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:18,623 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:29:18,623 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1396950708] [2020-10-12 14:29:18,624 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:29:18,624 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:18,624 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:29:18,624 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:29:18,624 INFO L87 Difference]: Start difference. First operand 16337 states and 17668 transitions. Second operand 7 states. [2020-10-12 14:29:22,025 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:29:22,026 INFO L93 Difference]: Finished difference Result 32091 states and 34739 transitions. [2020-10-12 14:29:22,026 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:29:22,027 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1426 [2020-10-12 14:29:22,027 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:29:22,051 INFO L225 Difference]: With dead ends: 32091 [2020-10-12 14:29:22,052 INFO L226 Difference]: Without dead ends: 16343 [2020-10-12 14:29:22,068 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=38, Invalid=72, Unknown=0, NotChecked=0, Total=110 [2020-10-12 14:29:22,082 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 16343 states. [2020-10-12 14:29:22,259 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 16343 to 16000. [2020-10-12 14:29:22,259 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 16000 states. [2020-10-12 14:29:22,284 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 16000 states to 16000 states and 17313 transitions. [2020-10-12 14:29:22,285 INFO L78 Accepts]: Start accepts. Automaton has 16000 states and 17313 transitions. Word has length 1426 [2020-10-12 14:29:22,286 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:29:22,286 INFO L479 AbstractCegarLoop]: Abstraction has 16000 states and 17313 transitions. [2020-10-12 14:29:22,286 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:29:22,287 INFO L276 IsEmpty]: Start isEmpty. Operand 16000 states and 17313 transitions. [2020-10-12 14:29:22,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1446 [2020-10-12 14:29:22,317 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:29:22,318 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:29:22,318 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2020-10-12 14:29:22,318 INFO L427 AbstractCegarLoop]: === Iteration 15 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:29:22,319 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:29:22,319 INFO L82 PathProgramCache]: Analyzing trace with hash 683418918, now seen corresponding path program 1 times [2020-10-12 14:29:22,319 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:29:22,319 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [180099606] [2020-10-12 14:29:22,320 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:29:22,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:22,583 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:22,775 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:22,980 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:25,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:27,491 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:27,491 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1469 [2020-10-12 14:29:27,491 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:29:27,491 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5010 [2020-10-12 14:29:27,491 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:27,491 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:27,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 762 [2020-10-12 14:29:27,492 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 276 [2020-10-12 14:29:27,492 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:27,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:27,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:27,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:27,683 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:27,683 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:27,683 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:27,683 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:29:27,683 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:27,684 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:27,684 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:27,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:27,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:27,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:27,764 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:27,764 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:29:27,764 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:27,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 53 [2020-10-12 14:29:27,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:27,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:27,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:27,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:27,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:29:27,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:27,818 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:27,841 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:27,841 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:29:27,841 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:27,841 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:29:27,842 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:27,842 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:27,842 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:27,868 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:29:27,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:27,874 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:27,901 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:27,901 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:29:27,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:27,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 28 [2020-10-12 14:29:27,902 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:27,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:27,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:27,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:27,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:27,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:29:27,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:27,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:27,933 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:27,934 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:29:27,934 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:27,934 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:29:27,934 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:27,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:27,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:27,935 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:27,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:27,942 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:29:27,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:27,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:28,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:28,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 145 [2020-10-12 14:29:28,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:28,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 57 [2020-10-12 14:29:28,016 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:28,016 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:28,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:28,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 139 [2020-10-12 14:29:28,017 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:28,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 752 [2020-10-12 14:29:28,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:28,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:28,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:28,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:29:28,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:28,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 378 [2020-10-12 14:29:28,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:28,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:28,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:28,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 274 [2020-10-12 14:29:28,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:28,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1025 [2020-10-12 14:29:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:28,810 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:28,859 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:28,860 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:29:28,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:28,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 14:29:28,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:29:28,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:28,860 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:28,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1240 [2020-10-12 14:29:28,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:28,935 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:28,965 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:28,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 14:29:28,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:28,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 40 [2020-10-12 14:29:28,965 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:28,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:28,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-12 14:29:28,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:28,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:30,642 INFO L134 CoverageAnalysis]: Checked inductivity of 4191 backedges. 1245 proven. 360 refuted. 0 times theorem prover too weak. 2586 trivial. 0 not checked. [2020-10-12 14:29:30,643 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [180099606] [2020-10-12 14:29:30,643 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:30,643 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:29:30,644 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [928428767] [2020-10-12 14:29:30,644 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:29:30,645 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:30,645 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:29:30,645 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:29:30,645 INFO L87 Difference]: Start difference. First operand 16000 states and 17313 transitions. Second operand 7 states. [2020-10-12 14:29:34,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:29:34,197 INFO L93 Difference]: Finished difference Result 32783 states and 35489 transitions. [2020-10-12 14:29:34,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:29:34,198 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1445 [2020-10-12 14:29:34,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:29:34,224 INFO L225 Difference]: With dead ends: 32783 [2020-10-12 14:29:34,224 INFO L226 Difference]: Without dead ends: 17372 [2020-10-12 14:29:34,242 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-10-12 14:29:34,256 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 17372 states. [2020-10-12 14:29:34,461 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 17372 to 17019. [2020-10-12 14:29:34,461 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 17019 states. [2020-10-12 14:29:34,480 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 17019 states to 17019 states and 18374 transitions. [2020-10-12 14:29:34,480 INFO L78 Accepts]: Start accepts. Automaton has 17019 states and 18374 transitions. Word has length 1445 [2020-10-12 14:29:34,481 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:29:34,481 INFO L479 AbstractCegarLoop]: Abstraction has 17019 states and 18374 transitions. [2020-10-12 14:29:34,481 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:29:34,481 INFO L276 IsEmpty]: Start isEmpty. Operand 17019 states and 18374 transitions. [2020-10-12 14:29:34,506 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1504 [2020-10-12 14:29:34,506 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:29:34,507 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:29:34,507 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2020-10-12 14:29:34,507 INFO L427 AbstractCegarLoop]: === Iteration 16 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:29:34,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:29:34,508 INFO L82 PathProgramCache]: Analyzing trace with hash -816093741, now seen corresponding path program 1 times [2020-10-12 14:29:34,508 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:29:34,508 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041101913] [2020-10-12 14:29:34,508 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:29:34,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:34,798 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:35,040 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:35,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:35,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:35,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:37,352 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:39,725 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:39,725 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1529 [2020-10-12 14:29:39,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-10-12 14:29:39,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5037 [2020-10-12 14:29:39,726 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:39,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:39,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 616 [2020-10-12 14:29:39,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 118 [2020-10-12 14:29:39,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:39,829 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:39,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:39,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:39,833 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:39,834 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:39,834 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:39,834 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:29:39,834 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:39,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:39,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:39,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:39,834 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:39,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:39,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:39,859 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:39,893 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:39,893 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:29:39,893 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:39,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 35 [2020-10-12 14:29:39,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:39,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:39,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:39,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:39,894 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:39,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:29:39,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:39,945 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:39,967 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:39,968 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:29:39,968 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:39,968 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 23 [2020-10-12 14:29:39,968 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:39,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:39,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:39,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:39,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:39,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:29:40,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:40,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:40,020 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:40,021 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:29:40,021 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:40,021 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 19 [2020-10-12 14:29:40,021 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:40,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:40,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:40,021 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:40,022 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:40,042 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:29:40,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:40,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:40,069 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:40,069 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:29:40,069 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:40,069 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:29:40,070 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:40,070 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 65 [2020-10-12 14:29:40,070 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:40,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:29:40,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:40,102 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:40,169 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:40,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:29:40,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:40,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 74 [2020-10-12 14:29:40,170 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:40,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:40,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:40,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-10-12 14:29:40,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:40,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 723 [2020-10-12 14:29:40,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:40,275 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:40,329 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:40,330 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:29:40,330 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:40,330 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 73 [2020-10-12 14:29:40,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 248 [2020-10-12 14:29:40,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:40,330 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:40,383 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 973 [2020-10-12 14:29:40,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:40,402 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:40,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:40,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:29:40,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:40,422 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 26 [2020-10-12 14:29:40,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:40,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:40,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:29:40,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:40,423 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:40,439 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1083 [2020-10-12 14:29:40,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:40,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:40,523 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:40,523 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:29:40,523 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:40,524 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 58 [2020-10-12 14:29:40,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:40,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:40,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:29:40,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:40,524 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:40,565 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1298 [2020-10-12 14:29:40,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:40,593 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:40,620 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:40,620 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 14:29:40,621 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:40,621 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:29:40,621 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:40,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:40,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-12 14:29:40,621 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:40,621 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:41,496 INFO L134 CoverageAnalysis]: Checked inductivity of 4929 backedges. 995 proven. 445 refuted. 0 times theorem prover too weak. 3489 trivial. 0 not checked. [2020-10-12 14:29:41,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041101913] [2020-10-12 14:29:41,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:41,497 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:29:41,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1374831685] [2020-10-12 14:29:41,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:29:41,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:41,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:29:41,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:29:41,499 INFO L87 Difference]: Start difference. First operand 17019 states and 18374 transitions. Second operand 7 states. [2020-10-12 14:29:45,533 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:29:45,534 INFO L93 Difference]: Finished difference Result 37519 states and 40672 transitions. [2020-10-12 14:29:45,535 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:29:45,535 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1503 [2020-10-12 14:29:45,536 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:29:45,568 INFO L225 Difference]: With dead ends: 37519 [2020-10-12 14:29:45,568 INFO L226 Difference]: Without dead ends: 21089 [2020-10-12 14:29:45,584 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 10 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=43, Invalid=89, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:29:45,599 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21089 states. [2020-10-12 14:29:45,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21089 to 20068. [2020-10-12 14:29:45,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 20068 states. [2020-10-12 14:29:45,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20068 states to 20068 states and 21623 transitions. [2020-10-12 14:29:45,861 INFO L78 Accepts]: Start accepts. Automaton has 20068 states and 21623 transitions. Word has length 1503 [2020-10-12 14:29:45,863 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:29:45,863 INFO L479 AbstractCegarLoop]: Abstraction has 20068 states and 21623 transitions. [2020-10-12 14:29:45,863 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:29:45,863 INFO L276 IsEmpty]: Start isEmpty. Operand 20068 states and 21623 transitions. [2020-10-12 14:29:45,903 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1529 [2020-10-12 14:29:45,904 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:29:45,905 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 5, 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, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:29:45,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2020-10-12 14:29:45,905 INFO L427 AbstractCegarLoop]: === Iteration 17 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:29:45,905 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:29:45,906 INFO L82 PathProgramCache]: Analyzing trace with hash -516243108, now seen corresponding path program 1 times [2020-10-12 14:29:45,906 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:29:45,906 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1879098259] [2020-10-12 14:29:45,907 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:29:46,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:46,317 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:46,528 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:46,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:46,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:51,253 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:51,253 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1554 [2020-10-12 14:29:51,254 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:29:51,254 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-12 14:29:51,254 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:51,254 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 758 [2020-10-12 14:29:51,255 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 253 [2020-10-12 14:29:51,255 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:51,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:29:51,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:51,390 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:51,391 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:51,391 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:29:51,391 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:51,391 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:29:51,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:51,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:51,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:51,392 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:51,392 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:51,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:29:51,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:51,417 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:51,454 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:51,454 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:29:51,454 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:51,454 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:29:51,454 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:51,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:51,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:51,455 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:51,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:51,500 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:29:51,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:51,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:51,530 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:51,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:29:51,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:51,531 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:29:51,531 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:51,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:51,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:51,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:51,531 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:51,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:29:51,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:51,562 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:51,593 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:51,593 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:29:51,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:51,594 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 31 [2020-10-12 14:29:51,594 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:51,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:51,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:51,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:51,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:51,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:29:51,619 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:51,620 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:51,634 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:51,635 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 96 [2020-10-12 14:29:51,635 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:51,635 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 14 [2020-10-12 14:29:51,635 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:51,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:51,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:51,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:51,635 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:51,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 633 [2020-10-12 14:29:51,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:51,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:51,709 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:51,709 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 116 [2020-10-12 14:29:51,709 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:51,709 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 47 [2020-10-12 14:29:51,710 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:51,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:29:51,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:29:51,710 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 110 [2020-10-12 14:29:51,710 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:51,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 748 [2020-10-12 14:29:51,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:51,780 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:51,957 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:51,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 251 [2020-10-12 14:29:51,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:51,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 199 [2020-10-12 14:29:51,958 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:51,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:29:51,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:29:51,958 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 251 [2020-10-12 14:29:51,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:52,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 998 [2020-10-12 14:29:52,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:52,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:52,182 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:52,183 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:29:52,183 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:52,183 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-10-12 14:29:52,183 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:52,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:52,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:29:52,183 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:52,183 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:52,199 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1108 [2020-10-12 14:29:52,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:52,241 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:52,287 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:52,287 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:29:52,288 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:52,288 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 61 [2020-10-12 14:29:52,288 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:52,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:52,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:29:52,288 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:52,288 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:52,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1323 [2020-10-12 14:29:52,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:52,360 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:52,390 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:29:52,390 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 14:29:52,390 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:29:52,390 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-10-12 14:29:52,391 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:29:52,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:29:52,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-12 14:29:52,391 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:29:52,391 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:29:53,780 INFO L134 CoverageAnalysis]: Checked inductivity of 5129 backedges. 1318 proven. 467 refuted. 0 times theorem prover too weak. 3344 trivial. 0 not checked. [2020-10-12 14:29:53,780 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1879098259] [2020-10-12 14:29:53,780 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:29:53,781 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:29:53,781 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [957874200] [2020-10-12 14:29:53,782 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:29:53,782 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:29:53,782 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:29:53,782 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:29:53,783 INFO L87 Difference]: Start difference. First operand 20068 states and 21623 transitions. Second operand 7 states. [2020-10-12 14:29:57,452 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:29:57,452 INFO L93 Difference]: Finished difference Result 41242 states and 44403 transitions. [2020-10-12 14:29:57,453 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2020-10-12 14:29:57,453 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1528 [2020-10-12 14:29:57,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:29:57,491 INFO L225 Difference]: With dead ends: 41242 [2020-10-12 14:29:57,491 INFO L226 Difference]: Without dead ends: 21763 [2020-10-12 14:29:57,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-10-12 14:29:57,526 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 21763 states. [2020-10-12 14:29:57,730 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 21763 to 21759. [2020-10-12 14:29:57,731 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 21759 states. [2020-10-12 14:29:57,754 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21759 states to 21759 states and 23348 transitions. [2020-10-12 14:29:57,755 INFO L78 Accepts]: Start accepts. Automaton has 21759 states and 23348 transitions. Word has length 1528 [2020-10-12 14:29:57,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:29:57,756 INFO L479 AbstractCegarLoop]: Abstraction has 21759 states and 23348 transitions. [2020-10-12 14:29:57,756 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:29:57,756 INFO L276 IsEmpty]: Start isEmpty. Operand 21759 states and 23348 transitions. [2020-10-12 14:29:57,795 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1535 [2020-10-12 14:29:57,796 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:29:57,796 INFO L422 BasicCegarLoop]: trace histogram [10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 10, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:29:57,796 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2020-10-12 14:29:57,797 INFO L427 AbstractCegarLoop]: === Iteration 18 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:29:57,797 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:29:57,797 INFO L82 PathProgramCache]: Analyzing trace with hash -358635008, now seen corresponding path program 1 times [2020-10-12 14:29:57,797 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:29:57,797 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [111331309] [2020-10-12 14:29:57,798 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:29:57,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:29:58,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:58,364 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:58,596 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:29:58,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:03,018 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:03,019 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1560 [2020-10-12 14:30:03,019 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:30:03,019 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5048 [2020-10-12 14:30:03,019 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:03,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:03,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 741 [2020-10-12 14:30:03,019 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 86 [2020-10-12 14:30:03,020 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:03,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:30:03,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:03,127 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:03,128 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:03,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:30:03,129 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:03,129 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-10-12 14:30:03,129 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:03,129 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:03,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:03,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:03,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:03,147 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:30:03,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:03,159 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:03,203 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:03,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:30:03,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:03,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:30:03,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:03,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:03,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:03,204 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:03,204 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:03,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:30:03,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:03,254 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:03,276 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:03,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:30:03,276 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:03,276 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 22 [2020-10-12 14:30:03,276 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:03,276 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:03,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:03,277 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:03,277 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:03,302 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:30:03,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:03,307 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:03,325 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:03,325 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:30:03,325 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:03,325 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 18 [2020-10-12 14:30:03,326 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:03,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:03,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:03,326 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:03,326 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:03,346 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:30:03,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:03,393 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:03,469 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:03,469 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 196 [2020-10-12 14:30:03,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:03,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 91 [2020-10-12 14:30:03,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:03,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:30:03,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:03,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 190 [2020-10-12 14:30:03,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:03,506 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 733 [2020-10-12 14:30:03,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:03,518 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:03,559 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:03,559 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 84 [2020-10-12 14:30:03,559 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:03,559 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:30:03,560 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:03,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:03,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:30:03,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 84 [2020-10-12 14:30:03,560 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:03,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 816 [2020-10-12 14:30:03,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:03,622 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:03,659 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:03,659 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 189 [2020-10-12 14:30:03,659 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:03,659 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 48 [2020-10-12 14:30:03,659 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:03,659 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 186 [2020-10-12 14:30:03,660 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:03,660 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:03,691 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1004 [2020-10-12 14:30:03,702 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:03,709 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:03,728 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:03,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 111 [2020-10-12 14:30:03,729 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:03,729 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 25 [2020-10-12 14:30:03,729 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:03,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:03,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 108 [2020-10-12 14:30:03,729 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:03,729 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:03,744 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1114 [2020-10-12 14:30:03,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:03,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:03,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:03,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:30:03,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:03,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 59 [2020-10-12 14:30:03,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:03,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:03,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 213 [2020-10-12 14:30:03,830 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:03,830 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:03,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1329 [2020-10-12 14:30:03,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:03,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:03,926 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:03,926 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 14:30:03,926 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:03,926 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 37 [2020-10-12 14:30:03,927 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-12 14:30:03,927 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:03,927 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:04,859 INFO L134 CoverageAnalysis]: Checked inductivity of 5283 backedges. 912 proven. 322 refuted. 0 times theorem prover too weak. 4049 trivial. 0 not checked. [2020-10-12 14:30:04,860 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [111331309] [2020-10-12 14:30:04,860 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:30:04,860 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:30:04,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [417145232] [2020-10-12 14:30:04,861 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:30:04,861 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:30:04,862 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:30:04,862 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:30:04,862 INFO L87 Difference]: Start difference. First operand 21759 states and 23348 transitions. Second operand 7 states. [2020-10-12 14:30:10,211 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-12 14:30:10,211 INFO L93 Difference]: Finished difference Result 45999 states and 49367 transitions. [2020-10-12 14:30:10,212 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-10-12 14:30:10,212 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 1534 [2020-10-12 14:30:10,213 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-12 14:30:10,250 INFO L225 Difference]: With dead ends: 45999 [2020-10-12 14:30:10,250 INFO L226 Difference]: Without dead ends: 24829 [2020-10-12 14:30:10,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=40, Invalid=92, Unknown=0, NotChecked=0, Total=132 [2020-10-12 14:30:10,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24829 states. [2020-10-12 14:30:10,515 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24829 to 23814. [2020-10-12 14:30:10,515 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 23814 states. [2020-10-12 14:30:10,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23814 states to 23814 states and 25529 transitions. [2020-10-12 14:30:10,540 INFO L78 Accepts]: Start accepts. Automaton has 23814 states and 25529 transitions. Word has length 1534 [2020-10-12 14:30:10,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-12 14:30:10,541 INFO L479 AbstractCegarLoop]: Abstraction has 23814 states and 25529 transitions. [2020-10-12 14:30:10,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-12 14:30:10,542 INFO L276 IsEmpty]: Start isEmpty. Operand 23814 states and 25529 transitions. [2020-10-12 14:30:10,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 1564 [2020-10-12 14:30:10,577 INFO L414 BasicCegarLoop]: Found error trace [2020-10-12 14:30:10,578 INFO L422 BasicCegarLoop]: trace histogram [9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 9, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 8, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 7, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 6, 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, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 4, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-12 14:30:10,579 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2020-10-12 14:30:10,579 INFO L427 AbstractCegarLoop]: === Iteration 19 === [calculate_outputErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-10-12 14:30:10,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-12 14:30:10,579 INFO L82 PathProgramCache]: Analyzing trace with hash -2012771150, now seen corresponding path program 1 times [2020-10-12 14:30:10,580 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-12 14:30:10,580 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [137879563] [2020-10-12 14:30:10,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-12 14:30:10,745 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:10,898 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:11,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:11,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:14,064 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:15,837 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:15,837 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 1587 [2020-10-12 14:30:15,837 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-10-12 14:30:15,837 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5064 [2020-10-12 14:30:15,837 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:15,837 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:15,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1155 [2020-10-12 14:30:15,838 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 218 [2020-10-12 14:30:15,838 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:16,001 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-12 14:30:16,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:16,003 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:16,005 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:16,005 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-10-12 14:30:16,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:16,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-10-12 14:30:16,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:16,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:16,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:16,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:16,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:16,019 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 8 [2020-10-12 14:30:16,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:16,031 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:16,068 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:16,068 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 240 [2020-10-12 14:30:16,068 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:16,068 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 38 [2020-10-12 14:30:16,069 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:16,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:16,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:16,069 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:16,069 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:16,128 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-10-12 14:30:16,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:16,134 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:16,158 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:16,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 163 [2020-10-12 14:30:16,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:16,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 24 [2020-10-12 14:30:16,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:16,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:16,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:16,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:16,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:16,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 409 [2020-10-12 14:30:16,189 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:16,190 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:16,210 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:16,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 130 [2020-10-12 14:30:16,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:16,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 20 [2020-10-12 14:30:16,210 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:16,210 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:16,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:16,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:16,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 538 [2020-10-12 14:30:16,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:16,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:16,242 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:16,242 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 71 [2020-10-12 14:30:16,242 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:16,243 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-10-12 14:30:16,243 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:16,243 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:16,243 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:16,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 608 [2020-10-12 14:30:16,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:16,262 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:16,306 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:16,306 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 263 [2020-10-12 14:30:16,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:16,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 45 [2020-10-12 14:30:16,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:16,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:16,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:16,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:16,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:16,361 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 870 [2020-10-12 14:30:16,395 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:16,416 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:16,526 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:16,526 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 274 [2020-10-12 14:30:16,526 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:16,526 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 130 [2020-10-12 14:30:16,526 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:16,526 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-10-12 14:30:16,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-10-12 14:30:16,527 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 268 [2020-10-12 14:30:16,527 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:16,605 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1143 [2020-10-12 14:30:16,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:16,650 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:16,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:16,798 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 216 [2020-10-12 14:30:16,798 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:16,798 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 164 [2020-10-12 14:30:16,798 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:16,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-10-12 14:30:16,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 0 [2020-10-12 14:30:16,799 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 216 [2020-10-12 14:30:16,799 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:17,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1358 [2020-10-12 14:30:17,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-12 14:30:17,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-10-12 14:30:17,202 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-10-12 14:30:17,203 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 150 [2020-10-12 14:30:17,203 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-10-12 14:30:17,203 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 65 [2020-10-12 14:30:17,203 FATAL L256 erpolLogProxyWrapper]: Heuristic: BIGGEST [2020-10-12 14:30:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-10-12 14:30:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 147 [2020-10-12 14:30:17,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-10-12 14:30:17,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-10-12 14:30:18,948 INFO L134 CoverageAnalysis]: Checked inductivity of 4498 backedges. 1493 proven. 148 refuted. 0 times theorem prover too weak. 2857 trivial. 0 not checked. [2020-10-12 14:30:18,948 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [137879563] [2020-10-12 14:30:18,949 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-10-12 14:30:18,949 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7] total 7 [2020-10-12 14:30:18,949 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [450194150] [2020-10-12 14:30:18,950 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-12 14:30:18,950 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-12 14:30:18,951 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-12 14:30:18,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-12 14:30:18,951 INFO L87 Difference]: Start difference. First operand 23814 states and 25529 transitions. Second operand 7 states.