/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=1.0 --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_spec1_product16.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:34:18,288 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:34:18,293 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:34:18,337 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:34:18,337 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:34:18,345 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:34:18,347 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:34:18,351 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:34:18,353 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:34:18,357 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:34:18,358 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:34:18,359 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:34:18,359 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:34:18,362 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:34:18,365 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:34:18,367 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:34:18,369 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:34:18,370 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:34:18,371 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:34:18,380 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:34:18,382 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:34:18,383 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:34:18,384 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:34:18,385 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:34:18,402 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:34:18,403 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:34:18,403 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:34:18,407 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:34:18,408 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:34:18,408 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:34:18,409 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:34:18,409 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:34:18,410 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:34:18,413 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:34:18,415 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:34:18,415 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:34:18,416 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:34:18,416 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:34:18,417 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:34:18,418 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:34:18,419 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:34:18,420 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 08:34:18,465 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:34:18,465 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:34:18,468 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:34:18,468 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:34:18,468 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:34:18,468 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:34:18,469 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:34:18,469 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:34:18,469 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:34:18,469 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:34:18,471 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:34:18,471 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:34:18,471 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:34:18,472 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:34:18,472 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:34:18,472 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:34:18,472 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:34:18,472 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:34:18,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:34:18,473 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:34:18,473 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:34:18,473 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:34:18,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:34:18,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:34:18,474 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:34:18,474 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:34:18,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:34:18,474 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:34:18,475 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:34:18,475 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:34:18,905 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:34:18,920 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:34:18,926 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:34:18,928 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:34:18,929 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:34:18,930 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product16.cil.c [2020-09-25 08:34:19,020 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee4063491/fd4ece8dcd7b4a6f9beaff95355336e9/FLAGd6f93a26b [2020-09-25 08:34:19,622 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:34:19,623 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product16.cil.c [2020-09-25 08:34:19,644 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee4063491/fd4ece8dcd7b4a6f9beaff95355336e9/FLAGd6f93a26b [2020-09-25 08:34:19,889 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/ee4063491/fd4ece8dcd7b4a6f9beaff95355336e9 [2020-09-25 08:34:19,902 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:34:19,907 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:34:19,908 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:34:19,908 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:34:19,913 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:34:19,914 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:34:19" (1/1) ... [2020-09-25 08:34:19,918 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@538d8bff and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:19, skipping insertion in model container [2020-09-25 08:34:19,919 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:34:19" (1/1) ... [2020-09-25 08:34:19,928 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:34:19,975 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:34:20,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:34:20,389 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:34:20,593 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:34:20,634 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:34:20,634 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:20 WrapperNode [2020-09-25 08:34:20,635 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:34:20,635 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:34:20,636 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:34:20,636 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:34:20,649 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:20" (1/1) ... [2020-09-25 08:34:20,649 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:20" (1/1) ... [2020-09-25 08:34:20,669 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:20" (1/1) ... [2020-09-25 08:34:20,670 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:20" (1/1) ... [2020-09-25 08:34:20,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:20" (1/1) ... [2020-09-25 08:34:20,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:20" (1/1) ... [2020-09-25 08:34:20,722 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:20" (1/1) ... [2020-09-25 08:34:20,732 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:34:20,733 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:34:20,733 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:34:20,733 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:34:20,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:20" (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 08:34:20,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:34:20,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:34:20,820 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:34:20,821 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:34:20,821 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:34:20,821 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:34:20,821 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:34:20,822 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:34:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:34:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 08:34:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:34:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:34:20,823 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:34:20,824 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:34:20,824 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:34:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:34:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:34:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:34:20,825 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:34:20,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:34:20,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:34:20,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:34:20,826 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:34:20,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:34:20,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:34:20,827 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:34:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:34:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 08:34:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:34:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 08:34:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:34:20,828 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:34:20,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:34:20,829 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:34:20,829 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:34:20,829 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:34:20,829 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 08:34:20,829 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:34:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:34:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:34:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:34:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:34:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:34:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:34:20,830 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:34:20,831 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:34:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:34:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:34:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:34:20,832 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:34:20,833 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 08:34:20,833 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:34:20,833 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:34:20,833 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:34:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:34:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:34:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:34:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:34:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:34:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:34:20,834 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:34:20,835 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:34:20,835 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:34:20,835 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:34:20,835 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:34:20,835 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:34:20,836 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:34:20,836 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:34:20,836 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:34:20,837 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:34:20,837 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:34:20,838 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:34:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:34:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:34:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:34:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:34:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:34:20,839 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:34:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:34:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:34:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:34:20,840 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:34:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 08:34:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:34:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 08:34:20,841 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:34:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 08:34:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:34:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:34:20,842 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:34:21,923 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:34:21,923 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:34:21,930 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:34:21 BoogieIcfgContainer [2020-09-25 08:34:21,930 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:34:21,932 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:34:21,932 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:34:21,936 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:34:21,936 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:34:19" (1/3) ... [2020-09-25 08:34:21,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a340f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:34:21, skipping insertion in model container [2020-09-25 08:34:21,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:34:20" (2/3) ... [2020-09-25 08:34:21,937 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5a340f98 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:34:21, skipping insertion in model container [2020-09-25 08:34:21,937 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:34:21" (3/3) ... [2020-09-25 08:34:21,940 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product16.cil.c [2020-09-25 08:34:21,951 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:34:21,962 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:34:21,982 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:34:22,009 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:34:22,009 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:34:22,009 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:34:22,009 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:34:22,010 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:34:22,010 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:34:22,010 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:34:22,010 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:34:22,034 INFO L276 IsEmpty]: Start isEmpty. Operand 284 states. [2020-09-25 08:34:22,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 08:34:22,051 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:34:22,053 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] [2020-09-25 08:34:22,053 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:34:22,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:34:22,061 INFO L82 PathProgramCache]: Analyzing trace with hash 665140827, now seen corresponding path program 1 times [2020-09-25 08:34:22,072 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:34:22,072 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1767066659] [2020-09-25 08:34:22,073 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:34:22,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:22,548 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:22,764 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:24,101 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:25,112 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:27,433 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:27,434 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 08:34:27,434 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:34:27,434 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:34:27,438 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:27,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:34:27,440 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:27,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 5 [2020-09-25 08:34:27,961 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:34:27,966 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:34:28,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:28,014 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:28,136 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:28,136 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:34:28,137 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:28,137 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 133 [2020-09-25 08:34:28,137 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:28,137 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:28,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:28,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:28,138 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:28,138 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:28,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:34:28,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:28,203 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:28,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:28,205 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:28,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:28,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:28,206 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:28,206 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:28,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:28,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:28,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:28,207 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:28,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:34:28,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:28,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:28,213 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:28,213 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:28,213 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:28,213 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:28,214 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:28,214 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:28,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:28,214 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:28,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:28,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:28,216 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:34:28,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:28,218 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:28,223 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:28,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:28,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:28,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:34:28,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:28,224 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:28,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:28,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:28,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:28,226 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:28,228 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:34:28,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:28,230 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:28,232 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:28,232 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:28,232 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:28,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:28,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:28,233 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:28,233 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:28,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:28,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:28,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:28,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:34:28,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:28,238 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:28,240 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:28,240 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:28,241 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:28,241 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:28,241 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:28,241 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:28,242 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:28,242 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:28,244 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 08:34:28,245 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:28,247 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:28,249 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:28,250 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:28,250 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:28,250 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:28,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:28,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:28,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:28,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:28,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:28,284 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 08:34:28,285 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1767066659] [2020-09-25 08:34:28,287 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:34:28,288 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:34:28,289 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [922786805] [2020-09-25 08:34:28,296 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:34:28,296 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:34:28,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:34:28,314 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:34:28,317 INFO L87 Difference]: Start difference. First operand 284 states. Second operand 3 states. [2020-09-25 08:34:29,631 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:34:29,631 INFO L93 Difference]: Finished difference Result 414 states and 500 transitions. [2020-09-25 08:34:29,632 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:34:29,634 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-25 08:34:29,635 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:34:29,655 INFO L225 Difference]: With dead ends: 414 [2020-09-25 08:34:29,656 INFO L226 Difference]: Without dead ends: 265 [2020-09-25 08:34:29,662 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:34:29,685 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-09-25 08:34:29,817 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 223. [2020-09-25 08:34:29,819 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 223 states. [2020-09-25 08:34:29,824 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 223 states to 223 states and 242 transitions. [2020-09-25 08:34:29,826 INFO L78 Accepts]: Start accepts. Automaton has 223 states and 242 transitions. Word has length 142 [2020-09-25 08:34:29,829 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:34:29,832 INFO L479 AbstractCegarLoop]: Abstraction has 223 states and 242 transitions. [2020-09-25 08:34:29,833 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:34:29,833 INFO L276 IsEmpty]: Start isEmpty. Operand 223 states and 242 transitions. [2020-09-25 08:34:29,847 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-25 08:34:29,848 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:34:29,848 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] [2020-09-25 08:34:29,848 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:34:29,849 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:34:29,849 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:34:29,849 INFO L82 PathProgramCache]: Analyzing trace with hash -1648714909, now seen corresponding path program 1 times [2020-09-25 08:34:29,850 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:34:29,851 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1109298269] [2020-09-25 08:34:29,851 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:34:29,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:29,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:30,076 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:31,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:31,969 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:32,728 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:34,918 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:34,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 174 [2020-09-25 08:34:34,920 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 08:34:34,920 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:34:34,920 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:34,921 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:34,921 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:34:34,922 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:34:34,922 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:35,283 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:34:35,285 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:34:35,293 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:35,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:35,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:35,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:34:35,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:35,393 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 98 [2020-09-25 08:34:35,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:35,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:35,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:35,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:35,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:35,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:35,426 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:34:35,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:35,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:35,429 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:35,429 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:35,429 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:35,430 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:35,430 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:35,430 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:35,430 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:35,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:35,431 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:35,431 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:35,432 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:34:35,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:35,434 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:35,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:35,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:35,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:35,436 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:35,436 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:35,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:35,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:35,437 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:35,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:34:35,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:35,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:35,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:35,444 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:35,445 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:35,445 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:34:35,445 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:35,445 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:35,445 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:35,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:35,446 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:35,446 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:35,448 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:34:35,448 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:35,450 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:35,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:35,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:35,451 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:35,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:35,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:35,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:35,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:35,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:35,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:35,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:35,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:34:35,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:35,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:35,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:35,458 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:35,458 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:35,458 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:35,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:35,459 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:35,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:35,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:35,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:35,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:35,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:34:35,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:35,463 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:35,464 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:35,465 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:35,465 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:35,465 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:35,465 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:35,465 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:35,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:35,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:35,466 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:35,466 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:35,497 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 08:34:35,498 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1109298269] [2020-09-25 08:34:35,498 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:34:35,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:34:35,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [790353026] [2020-09-25 08:34:35,502 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:34:35,504 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:34:35,504 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:34:35,505 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:34:35,505 INFO L87 Difference]: Start difference. First operand 223 states and 242 transitions. Second operand 4 states. [2020-09-25 08:34:36,171 WARN L193 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:34:37,064 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:34:37,064 INFO L93 Difference]: Finished difference Result 321 states and 363 transitions. [2020-09-25 08:34:37,065 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:34:37,065 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-25 08:34:37,066 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:34:37,069 INFO L225 Difference]: With dead ends: 321 [2020-09-25 08:34:37,069 INFO L226 Difference]: Without dead ends: 248 [2020-09-25 08:34:37,071 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:34:37,072 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 248 states. [2020-09-25 08:34:37,111 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 248 to 213. [2020-09-25 08:34:37,112 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 213 states. [2020-09-25 08:34:37,113 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 213 states to 213 states and 229 transitions. [2020-09-25 08:34:37,114 INFO L78 Accepts]: Start accepts. Automaton has 213 states and 229 transitions. Word has length 143 [2020-09-25 08:34:37,114 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:34:37,114 INFO L479 AbstractCegarLoop]: Abstraction has 213 states and 229 transitions. [2020-09-25 08:34:37,115 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:34:37,115 INFO L276 IsEmpty]: Start isEmpty. Operand 213 states and 229 transitions. [2020-09-25 08:34:37,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 08:34:37,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:34:37,117 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] [2020-09-25 08:34:37,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:34:37,117 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:34:37,118 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:34:37,118 INFO L82 PathProgramCache]: Analyzing trace with hash -1315624877, now seen corresponding path program 1 times [2020-09-25 08:34:37,118 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:34:37,119 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [973620629] [2020-09-25 08:34:37,119 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:34:37,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:37,215 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:37,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:38,133 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:38,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:42,167 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:42,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:34:42,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:34:42,168 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4999 [2020-09-25 08:34:42,168 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:42,168 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 08:34:42,169 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 08:34:42,169 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:34:42,522 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:34:42,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:34:42,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:42,545 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:42,649 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:42,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:34:42,650 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:42,650 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 113 [2020-09-25 08:34:42,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:42,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:42,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:42,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:42,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:42,653 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:42,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:34:42,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:42,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:42,698 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:42,698 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:42,699 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:42,699 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:42,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:42,700 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:42,700 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:42,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:42,701 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:42,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:34:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:42,704 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:42,706 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:42,707 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:42,707 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:42,707 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:42,708 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:42,708 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:42,708 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:42,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:42,709 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:42,709 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:42,711 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:34:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:42,713 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:42,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:42,715 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:42,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:42,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:42,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:42,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:42,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:42,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:42,718 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:42,718 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:42,720 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:34:42,721 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:42,722 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:42,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:42,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:42,724 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:42,724 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:42,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:42,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:42,725 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:42,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:42,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:42,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:42,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 08:34:42,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:42,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:42,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:42,745 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 08:34:42,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:42,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:34:42,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:42,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:42,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:42,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:42,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:34:42,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:42,750 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 08:34:42,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:42,752 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:42,754 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:42,754 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:42,754 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:42,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:42,755 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:42,755 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:42,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:42,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:42,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:42,756 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:42,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:34:42,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:42,760 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:42,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:42,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:42,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:42,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:42,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:42,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:42,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:42,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:42,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:42,763 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:42,802 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 08:34:42,802 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [973620629] [2020-09-25 08:34:42,803 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:34:42,803 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:34:42,803 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [441679753] [2020-09-25 08:34:42,804 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:34:42,804 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:34:42,805 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:34:42,805 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:34:42,805 INFO L87 Difference]: Start difference. First operand 213 states and 229 transitions. Second operand 5 states. [2020-09-25 08:34:43,481 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:34:44,978 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:34:44,979 INFO L93 Difference]: Finished difference Result 485 states and 568 transitions. [2020-09-25 08:34:44,979 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:34:44,980 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 156 [2020-09-25 08:34:44,981 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:34:44,989 INFO L225 Difference]: With dead ends: 485 [2020-09-25 08:34:44,989 INFO L226 Difference]: Without dead ends: 382 [2020-09-25 08:34:44,990 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 23 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:34:44,991 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 382 states. [2020-09-25 08:34:45,052 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 382 to 306. [2020-09-25 08:34:45,052 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 306 states. [2020-09-25 08:34:45,054 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 306 states to 306 states and 339 transitions. [2020-09-25 08:34:45,054 INFO L78 Accepts]: Start accepts. Automaton has 306 states and 339 transitions. Word has length 156 [2020-09-25 08:34:45,055 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:34:45,055 INFO L479 AbstractCegarLoop]: Abstraction has 306 states and 339 transitions. [2020-09-25 08:34:45,055 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:34:45,055 INFO L276 IsEmpty]: Start isEmpty. Operand 306 states and 339 transitions. [2020-09-25 08:34:45,057 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 08:34:45,057 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:34:45,058 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] [2020-09-25 08:34:45,058 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:34:45,058 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:34:45,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:34:45,058 INFO L82 PathProgramCache]: Analyzing trace with hash 141090736, now seen corresponding path program 1 times [2020-09-25 08:34:45,059 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:34:45,059 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [243963516] [2020-09-25 08:34:45,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:34:45,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:45,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:45,975 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:46,066 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:47,035 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:50,120 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:50,120 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 08:34:50,120 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 08:34:50,121 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5007 [2020-09-25 08:34:50,121 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:50,121 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:50,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 08:34:50,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 08:34:50,121 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 08:34:50,121 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:34:50,472 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:34:50,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:34:50,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:50,544 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:50,734 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:50,734 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:34:50,734 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:50,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 225 [2020-09-25 08:34:50,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:50,735 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:50,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:50,735 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:50,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 08:34:50,736 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:50,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:34:50,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:50,778 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:50,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:50,781 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:50,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:50,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:50,781 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:50,781 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:50,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:50,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:50,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:34:50,782 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:50,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:34:50,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:50,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:50,787 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:50,787 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:50,788 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:50,788 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:50,788 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:50,788 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:50,788 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:50,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:50,789 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:34:50,789 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:50,790 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:34:50,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:50,793 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:50,798 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:50,799 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:50,799 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:50,799 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:34:50,799 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:50,800 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:50,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:50,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:50,800 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:34:50,801 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:50,803 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:34:50,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:50,804 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:50,807 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:50,807 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:50,807 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:50,807 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:50,808 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:50,808 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:50,808 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:50,809 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:34:50,809 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:50,823 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 08:34:50,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:50,827 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:50,829 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:50,829 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:34:50,830 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:50,830 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:50,830 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:50,830 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:50,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:50,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:50,831 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:34:50,831 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:50,833 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 08:34:50,835 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:50,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:50,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:50,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:50,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:50,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:34:50,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:50,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:50,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:34:50,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:50,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:34:50,845 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:50,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 08:34:50,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:50,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:50,874 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:50,874 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:50,874 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:50,874 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:50,875 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:50,875 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:50,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:50,875 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:34:50,876 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:50,876 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:50,933 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 08:34:50,934 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [243963516] [2020-09-25 08:34:50,934 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:34:50,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 08:34:50,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [709971192] [2020-09-25 08:34:50,935 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 08:34:50,936 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:34:50,936 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 08:34:50,936 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 08:34:50,936 INFO L87 Difference]: Start difference. First operand 306 states and 339 transitions. Second operand 9 states. [2020-09-25 08:34:51,461 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:34:52,835 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:34:53,176 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:34:53,605 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:34:53,913 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:34:54,239 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:34:54,599 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:34:54,928 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:34:55,393 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:34:56,256 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:34:56,256 INFO L93 Difference]: Finished difference Result 802 states and 975 transitions. [2020-09-25 08:34:56,258 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:34:56,258 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 08:34:56,258 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:34:56,265 INFO L225 Difference]: With dead ends: 802 [2020-09-25 08:34:56,265 INFO L226 Difference]: Without dead ends: 606 [2020-09-25 08:34:56,268 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 08:34:56,270 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 606 states. [2020-09-25 08:34:56,359 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 606 to 475. [2020-09-25 08:34:56,360 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 475 states. [2020-09-25 08:34:56,363 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475 states to 475 states and 538 transitions. [2020-09-25 08:34:56,363 INFO L78 Accepts]: Start accepts. Automaton has 475 states and 538 transitions. Word has length 161 [2020-09-25 08:34:56,364 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:34:56,364 INFO L479 AbstractCegarLoop]: Abstraction has 475 states and 538 transitions. [2020-09-25 08:34:56,364 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 08:34:56,364 INFO L276 IsEmpty]: Start isEmpty. Operand 475 states and 538 transitions. [2020-09-25 08:34:56,367 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 08:34:56,367 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:34:56,367 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 08:34:56,367 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:34:56,368 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:34:56,368 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:34:56,368 INFO L82 PathProgramCache]: Analyzing trace with hash -1598410266, now seen corresponding path program 1 times [2020-09-25 08:34:56,368 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:34:56,369 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [251386942] [2020-09-25 08:34:56,369 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:34:56,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:56,458 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:56,681 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:57,061 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:58,936 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:58,936 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 08:34:58,937 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:34:58,937 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2523 [2020-09-25 08:34:58,937 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:58,937 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:34:58,937 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 157 [2020-09-25 08:34:58,938 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 38 [2020-09-25 08:34:58,938 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:34:59,244 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:34:59,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:34:59,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:59,265 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:59,360 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:59,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:34:59,361 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:59,361 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 106 [2020-09-25 08:34:59,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:59,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:59,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:59,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:59,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:59,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:59,390 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:34:59,391 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:59,392 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:59,393 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:59,393 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:59,393 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:59,394 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:34:59,394 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:59,394 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:59,394 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:59,395 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:59,395 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:34:59,396 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:34:59,396 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:59,398 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:59,399 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:59,399 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:59,399 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:59,399 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:59,400 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:59,400 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:59,400 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:59,400 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:34:59,402 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:34:59,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:59,403 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:59,406 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:59,406 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:59,407 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:59,407 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:59,407 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:59,407 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:59,407 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:59,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:59,408 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:59,408 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:34:59,409 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:34:59,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:59,411 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:59,412 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:59,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:34:59,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:59,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 08:34:59,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:59,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:59,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:59,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:59,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:59,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:34:59,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 08:34:59,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:59,425 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:59,426 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:59,428 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:34:59,428 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:59,428 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:34:59,428 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:59,428 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:34:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:59,429 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:34:59,429 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:59,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 08:34:59,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:59,447 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:59,451 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:59,451 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:34:59,452 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:59,452 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:34:59,452 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:59,452 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:59,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:59,453 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 08:34:59,453 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:34:59,456 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 08:34:59,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:59,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:59,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:59,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:59,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:59,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:34:59,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:59,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:59,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:34:59,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:59,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:34:59,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:34:59,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 08:34:59,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:34:59,468 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:34:59,474 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:34:59,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:34:59,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:34:59,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:34:59,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:34:59,475 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:34:59,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:34:59,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:34:59,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:34:59,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:34:59,533 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 08:34:59,534 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [251386942] [2020-09-25 08:34:59,534 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:34:59,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 08:34:59,535 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [612966553] [2020-09-25 08:34:59,535 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 08:34:59,535 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:34:59,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 08:34:59,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 08:34:59,536 INFO L87 Difference]: Start difference. First operand 475 states and 538 transitions. Second operand 10 states. [2020-09-25 08:35:00,079 WARN L193 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:35:01,404 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:35:01,736 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 08:35:02,078 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:35:02,439 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 08:35:02,767 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 08:35:03,159 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:35:03,159 INFO L93 Difference]: Finished difference Result 890 states and 1081 transitions. [2020-09-25 08:35:03,161 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 08:35:03,161 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 166 [2020-09-25 08:35:03,161 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:35:03,161 INFO L225 Difference]: With dead ends: 890 [2020-09-25 08:35:03,161 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 08:35:03,164 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=115, Invalid=265, Unknown=0, NotChecked=0, Total=380 [2020-09-25 08:35:03,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 08:35:03,164 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 08:35:03,164 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 08:35:03,164 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 08:35:03,164 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 166 [2020-09-25 08:35:03,165 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:35:03,165 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 08:35:03,165 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 08:35:03,165 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 08:35:03,165 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 08:35:03,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:35:03,168 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 08:35:03,351 WARN L193 SmtUtils]: Spent 178.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:35:03,528 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:35:03,691 WARN L193 SmtUtils]: Spent 161.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:35:03,859 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:35:04,198 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 7 [2020-09-25 08:35:04,362 WARN L193 SmtUtils]: Spent 162.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:35:04,706 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 08:35:04,973 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 08:35:05,330 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 08:35:05,575 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 187 [2020-09-25 08:35:05,916 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 08:35:06,258 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 08:35:06,599 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 192 [2020-09-25 08:35:06,862 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 08:35:07,148 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 08:35:07,411 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 08:35:07,577 WARN L193 SmtUtils]: Spent 164.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:35:07,726 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:35:07,880 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:35:08,039 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:35:08,196 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:35:08,479 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 211 DAG size of output: 7 [2020-09-25 08:35:08,648 WARN L193 SmtUtils]: Spent 156.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:35:08,931 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 214 DAG size of output: 7 [2020-09-25 08:35:09,088 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 08:35:09,237 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:35:09,554 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189 [2020-09-25 08:35:09,858 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 189