/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 SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.4 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 05:11:14,929 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 05:11:14,933 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 05:11:14,982 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 05:11:14,982 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 05:11:14,993 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 05:11:14,995 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 05:11:14,997 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 05:11:14,999 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 05:11:15,004 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 05:11:15,006 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 05:11:15,007 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 05:11:15,007 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 05:11:15,010 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 05:11:15,011 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 05:11:15,012 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 05:11:15,014 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 05:11:15,017 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 05:11:15,018 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 05:11:15,022 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 05:11:15,026 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 05:11:15,027 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 05:11:15,029 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 05:11:15,030 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 05:11:15,035 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 05:11:15,036 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 05:11:15,036 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 05:11:15,040 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 05:11:15,041 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 05:11:15,042 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 05:11:15,042 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 05:11:15,043 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 05:11:15,044 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 05:11:15,044 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 05:11:15,046 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 05:11:15,046 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 05:11:15,047 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 05:11:15,047 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 05:11:15,047 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 05:11:15,048 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 05:11:15,050 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 05:11:15,051 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 05:11:15,105 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 05:11:15,106 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 05:11:15,107 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 05:11:15,108 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 05:11:15,108 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 05:11:15,108 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 05:11:15,109 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 05:11:15,109 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 05:11:15,109 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 05:11:15,109 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 05:11:15,110 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 05:11:15,111 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 05:11:15,111 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 05:11:15,111 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 05:11:15,111 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 05:11:15,112 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 05:11:15,112 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 05:11:15,112 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 05:11:15,112 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 05:11:15,113 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 05:11:15,113 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 05:11:15,113 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:11:15,113 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 05:11:15,113 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 05:11:15,114 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 05:11:15,114 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 05:11:15,114 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 05:11:15,114 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 05:11:15,114 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 05:11:15,114 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 -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=WIDESTAMONGSMALL;tolerance=0.4;log-additional-information=true; [2020-09-25 05:11:15,611 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 05:11:15,642 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 05:11:15,648 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 05:11:15,649 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 05:11:15,650 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 05:11:15,651 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c [2020-09-25 05:11:15,750 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/059d23117/4927a8e36fa4476aa952035d489e9511/FLAG71105715e [2020-09-25 05:11:16,347 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 05:11:16,348 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product13.cil.c [2020-09-25 05:11:16,370 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/059d23117/4927a8e36fa4476aa952035d489e9511/FLAG71105715e [2020-09-25 05:11:16,636 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/059d23117/4927a8e36fa4476aa952035d489e9511 [2020-09-25 05:11:16,650 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 05:11:16,655 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 05:11:16,656 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 05:11:16,656 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 05:11:16,660 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 05:11:16,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:11:16" (1/1) ... [2020-09-25 05:11:16,666 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac45341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:16, skipping insertion in model container [2020-09-25 05:11:16,666 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 05:11:16" (1/1) ... [2020-09-25 05:11:16,675 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 05:11:16,735 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 05:11:17,231 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:11:17,247 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 05:11:17,332 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 05:11:17,370 INFO L208 MainTranslator]: Completed translation [2020-09-25 05:11:17,371 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:17 WrapperNode [2020-09-25 05:11:17,371 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 05:11:17,372 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 05:11:17,372 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 05:11:17,372 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 05:11:17,387 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:17" (1/1) ... [2020-09-25 05:11:17,388 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:17" (1/1) ... [2020-09-25 05:11:17,409 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:17" (1/1) ... [2020-09-25 05:11:17,410 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:17" (1/1) ... [2020-09-25 05:11:17,440 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:17" (1/1) ... [2020-09-25 05:11:17,452 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:17" (1/1) ... [2020-09-25 05:11:17,473 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:17" (1/1) ... [2020-09-25 05:11:17,482 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 05:11:17,482 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 05:11:17,483 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 05:11:17,483 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 05:11:17,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:17" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 05:11:17,605 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 05:11:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 05:11:17,606 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 05:11:17,611 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 05:11:17,611 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 05:11:17,611 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 05:11:17,611 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 05:11:17,612 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 05:11:17,612 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 05:11:17,612 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 05:11:17,612 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 05:11:17,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 05:11:17,613 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 05:11:17,613 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 05:11:17,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 05:11:17,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 05:11:17,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 05:11:17,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 05:11:17,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 05:11:17,614 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 05:11:17,614 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 05:11:17,615 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 05:11:17,615 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 05:11:17,615 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 05:11:17,615 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 05:11:17,615 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 05:11:17,615 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 05:11:17,616 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 05:11:17,616 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 05:11:17,616 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 05:11:17,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:11:17,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:11:17,616 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 05:11:17,617 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 05:11:17,617 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 05:11:17,617 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 05:11:17,617 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 05:11:17,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 05:11:17,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 05:11:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 05:11:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 05:11:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 05:11:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 05:11:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 05:11:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 05:11:17,618 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 05:11:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 05:11:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 05:11:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 05:11:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 05:11:17,619 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 05:11:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 05:11:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 05:11:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-25 05:11:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 05:11:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 05:11:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 05:11:17,620 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 05:11:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 05:11:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 05:11:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 05:11:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 05:11:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 05:11:17,621 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 05:11:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 05:11:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 05:11:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 05:11:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 05:11:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 05:11:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 05:11:17,622 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 05:11:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 05:11:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 05:11:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 05:11:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 05:11:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 05:11:17,623 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 05:11:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 05:11:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 05:11:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 05:11:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-25 05:11:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 05:11:17,624 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 05:11:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 05:11:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 05:11:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 05:11:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 05:11:17,625 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 05:11:18,903 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 05:11:18,903 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 05:11:18,912 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:11:18 BoogieIcfgContainer [2020-09-25 05:11:18,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 05:11:18,914 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 05:11:18,914 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 05:11:18,919 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 05:11:18,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 05:11:16" (1/3) ... [2020-09-25 05:11:18,920 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34970c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:11:18, skipping insertion in model container [2020-09-25 05:11:18,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 05:11:17" (2/3) ... [2020-09-25 05:11:18,921 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@34970c49 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 05:11:18, skipping insertion in model container [2020-09-25 05:11:18,921 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 05:11:18" (3/3) ... [2020-09-25 05:11:18,924 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product13.cil.c [2020-09-25 05:11:18,938 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 05:11:18,952 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 05:11:18,978 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 05:11:19,018 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 05:11:19,018 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 05:11:19,019 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 05:11:19,019 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 05:11:19,019 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 05:11:19,019 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 05:11:19,019 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 05:11:19,020 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 05:11:19,054 INFO L276 IsEmpty]: Start isEmpty. Operand 283 states. [2020-09-25 05:11:19,074 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-25 05:11:19,075 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:11:19,077 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:11:19,078 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:11:19,086 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:11:19,087 INFO L82 PathProgramCache]: Analyzing trace with hash 1208913695, now seen corresponding path program 1 times [2020-09-25 05:11:19,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:11:19,099 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1487663305] [2020-09-25 05:11:19,100 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:11:19,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:19,671 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:19,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:20,513 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:21,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:22,487 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:24,519 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:24,520 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 181 [2020-09-25 05:11:24,520 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:11:24,520 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 05:11:24,524 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:24,524 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:24,524 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 136 [2020-09-25 05:11:24,525 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:24,525 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 05:11:24,907 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:11:24,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:11:24,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:24,936 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:25,041 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:25,041 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:11:25,042 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:25,042 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 114 [2020-09-25 05:11:25,042 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:25,042 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:25,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:25,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:25,043 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:25,043 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:25,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:11:25,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:25,109 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:25,112 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:25,113 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:25,113 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:25,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:25,113 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:25,114 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:25,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:25,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:25,114 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:25,115 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:25,121 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:11:25,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:25,124 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:25,126 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:25,126 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:25,126 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:25,126 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:25,127 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:25,127 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:25,127 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:25,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:25,128 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:25,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:11:25,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:25,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:25,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:25,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:25,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:25,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:11:25,139 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:25,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:25,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:25,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:25,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:25,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:25,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:11:25,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:25,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:25,148 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:25,148 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:25,148 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:25,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:25,149 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:25,149 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:25,149 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:25,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:25,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:25,150 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:25,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:11:25,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:25,163 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:25,166 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:25,166 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:25,166 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:25,167 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:25,167 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:25,167 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:25,167 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:25,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:25,168 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:25,168 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:25,170 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-25 05:11:25,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:25,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:25,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:25,179 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:25,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:25,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:25,180 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:25,180 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:25,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:25,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:25,181 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:25,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:25,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 05:11:25,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:25,187 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:25,189 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:25,190 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:25,190 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:25,191 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:25,191 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:25,191 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:25,192 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:25,193 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:25,254 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:11:25,255 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1487663305] [2020-09-25 05:11:25,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:11:25,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 05:11:25,259 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1631788358] [2020-09-25 05:11:25,272 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 05:11:25,272 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:11:25,294 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 05:11:25,296 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:11:25,300 INFO L87 Difference]: Start difference. First operand 283 states. Second operand 4 states. [2020-09-25 05:11:26,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:11:26,578 INFO L93 Difference]: Finished difference Result 404 states and 482 transitions. [2020-09-25 05:11:26,579 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-09-25 05:11:26,581 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 148 [2020-09-25 05:11:26,582 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:11:26,602 INFO L225 Difference]: With dead ends: 404 [2020-09-25 05:11:26,602 INFO L226 Difference]: Without dead ends: 267 [2020-09-25 05:11:26,608 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 16 SyntacticMatches, 0 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=6, Invalid=6, Unknown=0, NotChecked=0, Total=12 [2020-09-25 05:11:26,631 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-09-25 05:11:26,705 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 222. [2020-09-25 05:11:26,707 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-25 05:11:26,709 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 240 transitions. [2020-09-25 05:11:26,714 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 240 transitions. Word has length 148 [2020-09-25 05:11:26,715 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:11:26,716 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 240 transitions. [2020-09-25 05:11:26,716 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 05:11:26,716 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 240 transitions. [2020-09-25 05:11:26,721 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-09-25 05:11:26,721 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:11:26,721 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:11:26,722 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 05:11:26,722 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:11:26,722 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:11:26,722 INFO L82 PathProgramCache]: Analyzing trace with hash -1569145614, now seen corresponding path program 1 times [2020-09-25 05:11:26,723 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:11:26,723 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1544980274] [2020-09-25 05:11:26,723 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:11:26,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:26,833 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:26,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:27,399 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:28,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:28,404 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:30,439 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:31,794 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:31,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 182 [2020-09-25 05:11:31,795 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:11:31,795 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5013 [2020-09-25 05:11:31,796 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:31,796 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:31,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:31,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 05:11:31,796 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-25 05:11:31,797 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:32,129 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:11:32,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:11:32,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:32,197 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:32,394 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:32,395 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:11:32,395 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:32,395 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 233 [2020-09-25 05:11:32,395 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:32,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:32,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:32,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:32,396 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 05:11:32,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:32,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:11:32,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:32,441 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:32,443 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:32,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:32,444 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:32,444 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:32,444 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:32,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:32,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:32,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:32,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:11:32,445 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:32,447 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:11:32,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:32,449 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:32,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:32,452 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:32,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:32,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:32,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:32,453 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:32,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:32,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:32,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:11:32,454 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:32,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:11:32,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:32,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:32,463 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:32,464 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:32,464 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:32,464 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 05:11:32,464 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:32,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:32,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:32,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:32,465 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:11:32,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:32,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:11:32,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:32,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:32,473 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:32,474 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:32,474 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:32,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:32,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:32,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:32,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:32,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:11:32,477 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:32,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:11:32,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:32,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:32,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:32,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:32,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:32,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 05:11:32,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:32,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:32,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 05:11:32,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:32,497 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-09-25 05:11:32,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:32,500 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:32,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:32,502 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:32,502 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:32,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:32,503 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:32,503 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:32,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:32,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:32,504 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:32,504 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:32,505 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 05:11:32,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:32,508 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:32,509 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:32,509 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:32,510 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:32,510 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:32,511 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:32,511 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:32,511 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:32,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:32,512 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:32,512 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:32,552 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:11:32,552 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1544980274] [2020-09-25 05:11:32,553 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:11:32,553 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 05:11:32,553 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1019847579] [2020-09-25 05:11:32,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 05:11:32,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:11:32,556 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 05:11:32,556 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 05:11:32,556 INFO L87 Difference]: Start difference. First operand 222 states and 240 transitions. Second operand 5 states. [2020-09-25 05:11:33,081 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:11:33,905 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:11:33,906 INFO L93 Difference]: Finished difference Result 374 states and 433 transitions. [2020-09-25 05:11:33,906 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 05:11:33,907 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 149 [2020-09-25 05:11:33,908 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:11:33,912 INFO L225 Difference]: With dead ends: 374 [2020-09-25 05:11:33,912 INFO L226 Difference]: Without dead ends: 267 [2020-09-25 05:11:33,914 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 05:11:33,915 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 267 states. [2020-09-25 05:11:33,970 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 267 to 222. [2020-09-25 05:11:33,970 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 222 states. [2020-09-25 05:11:33,974 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 222 states to 222 states and 239 transitions. [2020-09-25 05:11:33,974 INFO L78 Accepts]: Start accepts. Automaton has 222 states and 239 transitions. Word has length 149 [2020-09-25 05:11:33,975 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:11:33,975 INFO L479 AbstractCegarLoop]: Abstraction has 222 states and 239 transitions. [2020-09-25 05:11:33,975 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 05:11:33,975 INFO L276 IsEmpty]: Start isEmpty. Operand 222 states and 239 transitions. [2020-09-25 05:11:33,982 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2020-09-25 05:11:33,982 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:11:33,983 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:11:33,983 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 05:11:33,983 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:11:33,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:11:33,984 INFO L82 PathProgramCache]: Analyzing trace with hash 1041215585, now seen corresponding path program 1 times [2020-09-25 05:11:33,984 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:11:33,984 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1288384230] [2020-09-25 05:11:33,984 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:11:34,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:34,092 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:34,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:35,055 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:35,212 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:36,123 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:39,037 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:39,037 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 05:11:39,038 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:11:39,038 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 05:11:39,038 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:39,038 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 135 [2020-09-25 05:11:39,039 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:11:39,039 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:39,328 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:11:39,329 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:11:39,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:39,347 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:39,440 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:39,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:11:39,441 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:39,441 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 101 [2020-09-25 05:11:39,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:39,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:39,442 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:39,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:39,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:39,443 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:39,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:11:39,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:39,477 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:39,478 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:39,478 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:39,479 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:39,479 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:39,479 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:39,479 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:39,480 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:39,480 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:39,482 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:11:39,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:39,484 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:39,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:39,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:39,485 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:39,485 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:39,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:39,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:39,486 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:39,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:39,488 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:11:39,488 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:39,490 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:39,494 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:39,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:39,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:39,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:11:39,495 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:39,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:39,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:39,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:39,496 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:39,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:39,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:11:39,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:39,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:39,501 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:39,501 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:39,501 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:39,502 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:39,502 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:39,502 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:39,502 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:39,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:39,503 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:39,503 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:39,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:11:39,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:39,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:39,517 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:39,517 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:39,517 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:39,518 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:39,518 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:39,519 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:39,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:39,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:39,519 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:39,520 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:39,530 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 05:11:39,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:39,533 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:39,534 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:39,534 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:11:39,535 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:39,535 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:39,535 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:39,535 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:39,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:39,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 05:11:39,536 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:39,536 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:39,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:11:39,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:39,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:39,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:39,542 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:39,542 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:39,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:39,542 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:39,542 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:39,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:39,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:39,543 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:39,543 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:39,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 05:11:39,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:39,546 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:39,548 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:39,548 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:39,548 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:39,549 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:39,549 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:39,549 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:39,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:39,549 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:39,550 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:39,550 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:39,551 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 05:11:39,552 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:39,553 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:39,554 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:39,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:39,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:39,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:39,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:39,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:39,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:39,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:39,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:39,557 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:39,584 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:11:39,585 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1288384230] [2020-09-25 05:11:39,585 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:11:39,586 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:11:39,586 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [97636087] [2020-09-25 05:11:39,588 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:11:39,588 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:11:39,589 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:11:39,590 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:11:39,590 INFO L87 Difference]: Start difference. First operand 222 states and 239 transitions. Second operand 6 states. [2020-09-25 05:11:40,297 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:11:41,248 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:11:41,248 INFO L93 Difference]: Finished difference Result 357 states and 411 transitions. [2020-09-25 05:11:41,255 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-25 05:11:41,255 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 157 [2020-09-25 05:11:41,256 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:11:41,262 INFO L225 Difference]: With dead ends: 357 [2020-09-25 05:11:41,262 INFO L226 Difference]: Without dead ends: 280 [2020-09-25 05:11:41,263 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-09-25 05:11:41,268 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 280 states. [2020-09-25 05:11:41,317 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 280 to 212. [2020-09-25 05:11:41,318 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 212 states. [2020-09-25 05:11:41,319 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 212 states to 212 states and 226 transitions. [2020-09-25 05:11:41,319 INFO L78 Accepts]: Start accepts. Automaton has 212 states and 226 transitions. Word has length 157 [2020-09-25 05:11:41,320 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:11:41,320 INFO L479 AbstractCegarLoop]: Abstraction has 212 states and 226 transitions. [2020-09-25 05:11:41,320 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:11:41,320 INFO L276 IsEmpty]: Start isEmpty. Operand 212 states and 226 transitions. [2020-09-25 05:11:41,322 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 05:11:41,322 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:11:41,323 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:11:41,323 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 05:11:41,323 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:11:41,323 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:11:41,324 INFO L82 PathProgramCache]: Analyzing trace with hash -12271469, now seen corresponding path program 1 times [2020-09-25 05:11:41,324 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:11:41,324 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1012570708] [2020-09-25 05:11:41,324 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:11:41,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:41,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:42,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:42,327 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:42,934 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:44,582 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:46,371 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:46,372 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 05:11:46,372 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 05:11:46,372 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 05:11:46,372 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:46,372 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:11:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 124 [2020-09-25 05:11:46,373 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 73 [2020-09-25 05:11:46,373 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:46,723 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:11:46,724 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:11:46,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:46,745 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:46,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:46,847 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:11:46,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:46,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 111 [2020-09-25 05:11:46,848 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:46,848 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:46,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:46,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:46,849 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:46,849 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:46,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:11:46,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:46,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:46,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:46,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:46,905 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:46,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:46,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:46,906 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:46,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:46,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:46,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:46,908 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:46,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:11:46,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:46,911 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:46,912 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:46,913 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:46,913 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:46,913 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:46,914 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:46,914 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:46,914 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:46,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:46,915 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:46,915 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:46,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:11:46,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:46,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:46,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:46,922 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:46,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:46,923 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:46,923 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:46,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:46,924 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:46,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:46,925 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:46,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:11:46,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:46,929 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:46,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:46,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:46,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:46,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:46,931 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:46,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:46,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:46,932 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:46,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:46,933 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:46,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:11:46,953 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:46,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:46,959 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:46,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:46,960 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:46,960 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:11:46,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:46,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:46,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:46,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:46,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 05:11:46,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:46,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 05:11:46,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:46,983 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:46,990 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:46,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:11:46,991 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:46,991 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 05:11:46,991 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:46,992 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:46,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:46,992 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:46,993 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 05:11:46,993 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:46,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:11:46,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:46,998 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:47,000 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:47,000 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:47,001 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:47,001 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:47,001 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:47,002 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:47,002 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:47,003 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:47,003 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:47,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 143 [2020-09-25 05:11:47,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:47,007 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:47,012 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:47,012 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:47,012 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:47,013 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:11:47,013 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:47,014 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:47,014 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:11:47,015 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:47,017 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 153 [2020-09-25 05:11:47,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:47,023 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:47,027 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:47,027 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:47,027 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:47,028 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:47,028 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:47,028 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:47,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:47,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:47,029 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 05:11:47,030 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:47,098 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 05:11:47,099 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1012570708] [2020-09-25 05:11:47,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 05:11:47,100 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 05:11:47,100 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236614352] [2020-09-25 05:11:47,101 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 05:11:47,101 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:11:47,102 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 05:11:47,102 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 05:11:47,102 INFO L87 Difference]: Start difference. First operand 212 states and 226 transitions. Second operand 6 states. [2020-09-25 05:11:47,897 WARN L193 SmtUtils]: Spent 377.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 05:11:49,756 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:11:49,756 INFO L93 Difference]: Finished difference Result 445 states and 547 transitions. [2020-09-25 05:11:49,757 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 05:11:49,757 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-09-25 05:11:49,758 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:11:49,763 INFO L225 Difference]: With dead ends: 445 [2020-09-25 05:11:49,763 INFO L226 Difference]: Without dead ends: 442 [2020-09-25 05:11:49,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 24 SyntacticMatches, 1 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 05:11:49,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 442 states. [2020-09-25 05:11:49,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 442 to 309. [2020-09-25 05:11:49,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-09-25 05:11:49,815 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 339 transitions. [2020-09-25 05:11:49,815 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 339 transitions. Word has length 166 [2020-09-25 05:11:49,816 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:11:49,816 INFO L479 AbstractCegarLoop]: Abstraction has 309 states and 339 transitions. [2020-09-25 05:11:49,816 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 05:11:49,816 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 339 transitions. [2020-09-25 05:11:49,819 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 221 [2020-09-25 05:11:49,820 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 05:11:49,820 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 05:11:49,821 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 05:11:49,821 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 05:11:49,821 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 05:11:49,821 INFO L82 PathProgramCache]: Analyzing trace with hash 1711116294, now seen corresponding path program 1 times [2020-09-25 05:11:49,821 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 05:11:49,822 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [761030371] [2020-09-25 05:11:49,822 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 05:11:49,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:49,955 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:50,089 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:50,368 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:51,895 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:52,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:52,962 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:54,902 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:54,902 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 267 [2020-09-25 05:11:54,902 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 6 [2020-09-25 05:11:54,902 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5001 [2020-09-25 05:11:54,903 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:54,903 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:11:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 05:11:54,903 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 05:11:54,903 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:55,222 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:11:55,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 05:11:55,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,315 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,316 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-25 05:11:55,316 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,316 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 79 [2020-09-25 05:11:55,316 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,316 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:55,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:55,317 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:55,317 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:55,355 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2020-09-25 05:11:55,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,357 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,359 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:55,359 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,359 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:55,360 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,360 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:55,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:55,360 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:55,360 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:55,362 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 87 [2020-09-25 05:11:55,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,363 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,368 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,368 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:55,368 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,368 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 05:11:55,369 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,369 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:55,369 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:55,370 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:55,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 90 [2020-09-25 05:11:55,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,373 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,376 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,376 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:55,377 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,377 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:55,377 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,377 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:55,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:55,378 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:55,378 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:55,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2020-09-25 05:11:55,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,382 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:55,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:55,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:55,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:55,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:55,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:55,392 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-09-25 05:11:55,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,394 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,395 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,396 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 05:11:55,396 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,396 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:55,396 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,396 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:55,397 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:55,397 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:55,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 05:11:55,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,419 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,555 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,555 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 55 [2020-09-25 05:11:55,555 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:11:55,555 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 141 [2020-09-25 05:11:55,555 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,556 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 05:11:55,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 3 [2020-09-25 05:11:55,556 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 43 [2020-09-25 05:11:55,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:55,578 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:11:55,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,590 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:11:55,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 05:11:55,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 05:11:55,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:55,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 05:11:55,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:55,595 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:11:55,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,597 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,599 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,599 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:55,599 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,600 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:55,600 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,600 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,600 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 05:11:55,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:55,601 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 05:11:55,601 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:55,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 10 [2020-09-25 05:11:55,605 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,648 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,649 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 36 [2020-09-25 05:11:55,649 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,649 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 43 [2020-09-25 05:11:55,649 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,650 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 05:11:55,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 21 [2020-09-25 05:11:55,650 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 13 [2020-09-25 05:11:55,651 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:55,687 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:11:55,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,689 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,690 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:55,691 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,691 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:55,691 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:55,692 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:55,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:55,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-25 05:11:55,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,700 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,700 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:55,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,701 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 05:11:55,701 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 05:11:55,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:55,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 05:11:55,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:55,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 186 [2020-09-25 05:11:55,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,732 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,732 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 05:11:55,733 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,733 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:55,733 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,733 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,733 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:55,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 05:11:55,734 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:55,734 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:55,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 05:11:55,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,736 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,738 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,738 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 05:11:55,738 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:55,739 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,739 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:55,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 05:11:55,740 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:55,740 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 05:11:55,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-25 05:11:55,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:55,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 05:11:55,744 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,744 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:55,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:55,745 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:55,745 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:55,746 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 207 [2020-09-25 05:11:55,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 05:11:55,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 05:11:55,749 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 05:11:55,750 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 05:11:55,750 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 05:11:55,750 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 05:11:55,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 05:11:55,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.4 [2020-09-25 05:11:55,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 05:11:55,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 05:11:55,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 05:11:55,751 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 05:11:55,818 INFO L134 CoverageAnalysis]: Checked inductivity of 49 backedges. 32 proven. 6 refuted. 0 times theorem prover too weak. 11 trivial. 0 not checked. [2020-09-25 05:11:55,818 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [761030371] [2020-09-25 05:11:55,818 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-25 05:11:55,819 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [12] total 12 [2020-09-25 05:11:55,819 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1744984273] [2020-09-25 05:11:55,819 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-25 05:11:55,820 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 05:11:55,820 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-25 05:11:55,820 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=106, Unknown=0, NotChecked=0, Total=132 [2020-09-25 05:11:55,821 INFO L87 Difference]: Start difference. First operand 309 states and 339 transitions. Second operand 12 states. [2020-09-25 05:11:56,377 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 05:11:57,659 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:11:57,974 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:11:58,305 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:11:58,652 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:11:58,949 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 05:11:59,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 05:11:59,138 INFO L93 Difference]: Finished difference Result 426 states and 492 transitions. [2020-09-25 05:11:59,140 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2020-09-25 05:11:59,140 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 220 [2020-09-25 05:11:59,141 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 05:11:59,141 INFO L225 Difference]: With dead ends: 426 [2020-09-25 05:11:59,141 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 05:11:59,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=139, Invalid=367, Unknown=0, NotChecked=0, Total=506 [2020-09-25 05:11:59,143 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 05:11:59,144 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 05:11:59,144 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 05:11:59,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 05:11:59,144 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 220 [2020-09-25 05:11:59,144 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 05:11:59,145 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 05:11:59,145 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-25 05:11:59,145 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 05:11:59,145 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 05:11:59,145 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 05:11:59,147 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 05:11:59,346 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:11:59,531 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:11:59,714 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:11:59,889 WARN L193 SmtUtils]: Spent 172.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:12:00,389 WARN L193 SmtUtils]: Spent 495.00 ms on a formula simplification. DAG size of input: 209 DAG size of output: 201 [2020-09-25 05:12:00,556 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:12:00,700 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 05:12:00,877 WARN L193 SmtUtils]: Spent 165.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:12:01,048 WARN L193 SmtUtils]: Spent 170.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:12:01,220 WARN L193 SmtUtils]: Spent 166.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:12:01,386 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:12:01,552 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:12:01,716 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:12:02,054 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 194 [2020-09-25 05:12:02,388 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 194 [2020-09-25 05:12:02,708 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 194 [2020-09-25 05:12:03,020 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 206 DAG size of output: 194 [2020-09-25 05:12:03,186 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 05:12:03,351 WARN L193 SmtUtils]: Spent 163.00 ms on a formula simplification that was a NOOP. DAG size: 193