/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=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --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_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:11:44,148 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:11:44,152 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:11:44,194 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:11:44,194 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:11:44,202 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:11:44,204 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:11:44,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:11:44,210 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:11:44,213 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:11:44,214 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:11:44,215 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:11:44,216 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:11:44,218 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:11:44,220 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:11:44,222 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:11:44,223 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:11:44,224 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:11:44,226 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:11:44,234 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:11:44,236 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:11:44,237 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:11:44,238 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:11:44,240 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:11:44,251 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:11:44,251 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:11:44,252 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:11:44,253 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:11:44,253 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:11:44,254 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:11:44,254 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:11:44,255 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:11:44,256 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:11:44,257 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:11:44,257 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:11:44,258 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:11:44,258 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:11:44,259 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:11:44,259 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:11:44,260 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:11:44,260 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:11:44,261 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 14:11:44,285 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:11:44,285 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:11:44,286 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:11:44,286 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:11:44,287 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:11:44,287 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:11:44,287 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:11:44,287 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:11:44,287 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:11:44,288 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:11:44,288 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:11:44,288 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:11:44,288 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:11:44,289 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:11:44,289 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:11:44,289 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:11:44,289 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:11:44,289 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:11:44,290 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:11:44,290 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:11:44,290 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:11:44,290 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:11:44,290 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:11:44,291 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:11:44,291 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:11:44,291 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:11:44,291 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:11:44,291 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:11:44,292 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:11:44,292 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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;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=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:11:44,757 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:11:44,774 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:11:44,779 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:11:44,780 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:11:44,781 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:11:44,782 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product18.cil.c [2020-09-25 14:11:44,858 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe7bdbb63/5f1d935d018a46f69b0d17fcc6259552/FLAG77a0cc4f5 [2020-09-25 14:11:45,429 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:11:45,430 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product18.cil.c [2020-09-25 14:11:45,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe7bdbb63/5f1d935d018a46f69b0d17fcc6259552/FLAG77a0cc4f5 [2020-09-25 14:11:45,727 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/fe7bdbb63/5f1d935d018a46f69b0d17fcc6259552 [2020-09-25 14:11:45,745 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:11:45,758 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:11:45,759 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:11:45,759 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:11:45,764 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:11:45,765 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:11:45" (1/1) ... [2020-09-25 14:11:45,769 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:45, skipping insertion in model container [2020-09-25 14:11:45,769 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:11:45" (1/1) ... [2020-09-25 14:11:45,778 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:11:45,852 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:11:46,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:11:46,429 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:11:46,539 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:11:46,582 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:11:46,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:46 WrapperNode [2020-09-25 14:11:46,583 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:11:46,584 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:11:46,584 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:11:46,584 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:11:46,599 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:46" (1/1) ... [2020-09-25 14:11:46,599 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:46" (1/1) ... [2020-09-25 14:11:46,619 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:46" (1/1) ... [2020-09-25 14:11:46,620 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:46" (1/1) ... [2020-09-25 14:11:46,652 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:46" (1/1) ... [2020-09-25 14:11:46,662 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:46" (1/1) ... [2020-09-25 14:11:46,668 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:46" (1/1) ... [2020-09-25 14:11:46,675 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:11:46,676 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:11:46,676 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:11:46,676 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:11:46,683 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:46" (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 14:11:46,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:11:46,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:11:46,763 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:11:46,764 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:11:46,764 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:11:46,764 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:11:46,764 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:11:46,764 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:11:46,765 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:11:46,765 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:11:46,765 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:11:46,765 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:11:46,765 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:11:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:11:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:11:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:11:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:11:46,766 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:11:46,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:11:46,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:11:46,767 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:11:46,767 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 14:11:46,767 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 14:11:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:11:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:11:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:11:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:11:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:11:46,768 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:11:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:11:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:11:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:11:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:11:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:11:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:11:46,769 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:11:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:11:46,770 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 14:11:46,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:11:46,770 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:11:46,770 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:11:46,770 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:11:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:11:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:11:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 14:11:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:11:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:11:46,771 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:11:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:11:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:11:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:11:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:11:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:11:46,772 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:11:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:11:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:11:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:11:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:11:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:11:46,773 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:11:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:11:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 14:11:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:11:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:11:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 14:11:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:11:46,774 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:11:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 14:11:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:11:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:11:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:11:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:11:46,775 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:11:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:11:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:11:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:11:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:11:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:11:46,776 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:11:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:11:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:11:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:11:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:11:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:11:46,777 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:11:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:11:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:11:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:11:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:11:46,778 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:11:47,845 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:11:47,845 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:11:47,852 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:11:47 BoogieIcfgContainer [2020-09-25 14:11:47,852 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:11:47,853 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:11:47,854 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:11:47,857 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:11:47,857 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:11:45" (1/3) ... [2020-09-25 14:11:47,858 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59da4630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:11:47, skipping insertion in model container [2020-09-25 14:11:47,858 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:11:46" (2/3) ... [2020-09-25 14:11:47,859 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@59da4630 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:11:47, skipping insertion in model container [2020-09-25 14:11:47,859 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:11:47" (3/3) ... [2020-09-25 14:11:47,861 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product18.cil.c [2020-09-25 14:11:47,872 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:11:47,883 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:11:47,905 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:11:47,932 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:11:47,932 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:11:47,932 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:11:47,933 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:11:47,933 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:11:47,933 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:11:47,933 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:11:47,933 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:11:47,958 INFO L276 IsEmpty]: Start isEmpty. Operand 285 states. [2020-09-25 14:11:47,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 14:11:47,973 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:11:47,975 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 14:11:47,975 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:11:47,981 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:11:47,981 INFO L82 PathProgramCache]: Analyzing trace with hash -1475280450, now seen corresponding path program 1 times [2020-09-25 14:11:47,992 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:11:47,993 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [985947767] [2020-09-25 14:11:47,993 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:11:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:48,499 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:48,690 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:50,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:51,205 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:53,332 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:53,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:53,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 14:11:53,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 5 [2020-09-25 14:11:53,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5211 [2020-09-25 14:11:53,559 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:53,559 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:53,559 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:11:53,560 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:11:53,561 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 14:11:53,562 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 7 [2020-09-25 14:11:54,181 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:11:54,186 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:11:54,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:54,302 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:54,556 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:54,557 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:11:54,557 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:54,557 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 14:11:54,557 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:54,557 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:54,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:54,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:54,558 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:11:54,558 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:54,626 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:11:54,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:54,629 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:54,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:54,632 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:54,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:54,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:11:54,633 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:54,633 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:54,633 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:54,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:54,634 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:11:54,634 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:54,636 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:11:54,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:54,639 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:54,642 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:54,642 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:54,642 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:54,643 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:11:54,643 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:54,643 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:54,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:54,644 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:11:54,644 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:54,645 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:11:54,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:54,649 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:54,653 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:54,653 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:11:54,654 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:54,654 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:11:54,654 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:54,654 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:54,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:54,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:54,655 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:11:54,655 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:54,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:11:54,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:54,660 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:54,663 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:54,663 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:11:54,664 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:54,664 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:11:54,664 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:54,664 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:11:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:11:54,665 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:11:54,665 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:54,667 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:11:54,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:54,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:54,671 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:54,671 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:11:54,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:54,672 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:11:54,672 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:54,672 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:54,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:11:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:11:54,673 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:11:54,673 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:54,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:11:54,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:54,677 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:54,679 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:11:54,680 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:11:54,680 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:11:54,680 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:11:54,680 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:11:54,680 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:11:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:11:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:11:54,681 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:11:54,681 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:11:54,709 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 14:11:54,710 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [985947767] [2020-09-25 14:11:54,712 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:11:54,712 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:11:54,713 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866788116] [2020-09-25 14:11:54,720 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:11:54,720 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:11:54,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:11:54,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:11:54,742 INFO L87 Difference]: Start difference. First operand 285 states. Second operand 4 states. [2020-09-25 14:11:55,477 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:11:56,450 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:11:56,451 INFO L93 Difference]: Finished difference Result 422 states and 503 transitions. [2020-09-25 14:11:56,451 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:11:56,453 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 14:11:56,454 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:11:56,478 INFO L225 Difference]: With dead ends: 422 [2020-09-25 14:11:56,478 INFO L226 Difference]: Without dead ends: 268 [2020-09-25 14:11:56,486 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:11:56,511 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-09-25 14:11:56,659 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 228. [2020-09-25 14:11:56,661 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 228 states. [2020-09-25 14:11:56,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 228 states to 228 states and 244 transitions. [2020-09-25 14:11:56,674 INFO L78 Accepts]: Start accepts. Automaton has 228 states and 244 transitions. Word has length 142 [2020-09-25 14:11:56,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:11:56,676 INFO L479 AbstractCegarLoop]: Abstraction has 228 states and 244 transitions. [2020-09-25 14:11:56,676 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:11:56,676 INFO L276 IsEmpty]: Start isEmpty. Operand 228 states and 244 transitions. [2020-09-25 14:11:56,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 152 [2020-09-25 14:11:56,688 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:11:56,689 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] [2020-09-25 14:11:56,689 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:11:56,689 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:11:56,690 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:11:56,690 INFO L82 PathProgramCache]: Analyzing trace with hash -1004869487, now seen corresponding path program 1 times [2020-09-25 14:11:56,690 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:11:56,690 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [849253436] [2020-09-25 14:11:56,691 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:11:56,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:11:56,825 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:57,058 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:57,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:11:58,052 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:01,773 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:01,774 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:12:01,774 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 14:12:01,774 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5015 [2020-09-25 14:12:01,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:01,775 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:01,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:12:01,775 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 82 [2020-09-25 14:12:01,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 88 [2020-09-25 14:12:01,776 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:02,105 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:12:02,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:12:02,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:02,177 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:02,369 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:02,370 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:12:02,370 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:02,370 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 226 [2020-09-25 14:12:02,370 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:02,371 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:02,371 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 78 [2020-09-25 14:12:02,371 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:02,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:12:02,411 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:02,412 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:02,415 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:02,415 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:02,415 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:02,415 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:02,415 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:02,416 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:02,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:02,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:02,416 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:02,417 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:02,418 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:12:02,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:02,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:02,422 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:02,422 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:02,422 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:02,423 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:02,423 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:02,423 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:02,423 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:02,424 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:02,424 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:02,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:12:02,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:02,428 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:02,434 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:02,435 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:02,435 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:02,435 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:12:02,435 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:02,436 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:02,436 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:02,436 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:02,438 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:12:02,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:02,440 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:02,442 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:02,443 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:02,443 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:02,443 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:02,443 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:02,444 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:02,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:02,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:02,444 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:02,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:02,455 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:12:02,457 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:02,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:02,461 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:02,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:12:02,462 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:02,462 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:02,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:02,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:02,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:02,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:02,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:12:02,463 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:02,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:12:02,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:02,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:02,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:02,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:02,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:02,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-25 14:12:02,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:02,469 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:02,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:12:02,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:02,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:12:02,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:02,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:12:02,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:02,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:02,480 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:02,480 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:02,481 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:02,481 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:12:02,481 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:02,481 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:02,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:12:02,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:02,482 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:02,482 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:02,549 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 14:12:02,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:02,551 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:02,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:02,553 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:02,553 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:02,553 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:12:02,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:02,554 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:02,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:12:02,554 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:12:02,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:12:02,555 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:02,592 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 14:12:02,593 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [849253436] [2020-09-25 14:12:02,593 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:12:02,593 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:12:02,594 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1261578492] [2020-09-25 14:12:02,596 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:12:02,596 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:12:02,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:12:02,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:12:02,597 INFO L87 Difference]: Start difference. First operand 228 states and 244 transitions. Second operand 9 states. [2020-09-25 14:12:03,053 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:04,439 WARN L193 SmtUtils]: Spent 515.00 ms on a formula simplification. DAG size of input: 196 DAG size of output: 188 [2020-09-25 14:12:05,044 WARN L193 SmtUtils]: Spent 547.00 ms on a formula simplification. DAG size of input: 203 DAG size of output: 190 [2020-09-25 14:12:05,373 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:05,701 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:12:06,018 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:06,737 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 195 [2020-09-25 14:12:07,091 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-09-25 14:12:07,438 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:08,054 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 14:12:08,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:12:08,942 INFO L93 Difference]: Finished difference Result 572 states and 701 transitions. [2020-09-25 14:12:08,942 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 14:12:08,943 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 151 [2020-09-25 14:12:08,944 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:12:08,949 INFO L225 Difference]: With dead ends: 572 [2020-09-25 14:12:08,949 INFO L226 Difference]: Without dead ends: 430 [2020-09-25 14:12:08,952 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 3.7s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2020-09-25 14:12:08,953 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2020-09-25 14:12:09,022 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 321. [2020-09-25 14:12:09,022 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 321 states. [2020-09-25 14:12:09,024 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 321 states to 321 states and 349 transitions. [2020-09-25 14:12:09,025 INFO L78 Accepts]: Start accepts. Automaton has 321 states and 349 transitions. Word has length 151 [2020-09-25 14:12:09,025 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:12:09,026 INFO L479 AbstractCegarLoop]: Abstraction has 321 states and 349 transitions. [2020-09-25 14:12:09,026 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:12:09,026 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states and 349 transitions. [2020-09-25 14:12:09,028 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-09-25 14:12:09,028 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:12:09,029 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:12:09,029 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:12:09,029 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:12:09,029 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:12:09,030 INFO L82 PathProgramCache]: Analyzing trace with hash 2026328297, now seen corresponding path program 1 times [2020-09-25 14:12:09,030 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:12:09,030 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [584114293] [2020-09-25 14:12:09,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:12:09,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:09,129 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:09,335 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:09,703 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:13,467 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:13,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 14:12:13,468 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:12:13,468 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4386 [2020-09-25 14:12:13,468 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:13,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:13,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:12:13,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 14:12:13,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 124 [2020-09-25 14:12:13,469 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:13,844 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:12:13,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:12:13,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:13,918 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,157 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:14,158 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:12:14,158 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:14,158 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 275 [2020-09-25 14:12:14,158 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:14,158 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:14,159 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 14:12:14,159 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:14,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:12:14,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:14,202 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,205 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:14,206 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:14,206 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:14,206 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:14,207 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:14,207 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:14,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:14,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:14,207 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:14,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:14,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:12:14,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:14,211 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,215 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:14,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:14,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:14,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:12:14,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:14,217 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:14,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:14,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:14,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:14,218 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:14,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:12:14,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:14,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,227 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:14,228 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:14,228 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:14,229 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:12:14,229 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:14,230 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:14,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:14,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:14,230 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:14,230 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:14,232 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:12:14,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:14,234 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,236 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:14,236 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:14,237 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:14,237 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:12:14,237 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:14,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:14,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:14,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:14,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:14,247 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 14:12:14,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:14,250 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,258 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:14,258 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:12:14,259 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:14,259 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:12:14,259 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:14,259 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:14,259 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:14,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:14,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 14:12:14,260 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:14,271 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 14:12:14,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:14,273 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,277 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:14,277 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 14:12:14,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:14,278 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:12:14,278 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:14,278 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:14,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:14,279 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-25 14:12:14,279 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:14,296 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 14:12:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:14,299 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,303 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,305 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:14,305 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:12:14,306 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:12:14,306 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:12:14,306 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:14,306 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:14,306 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 14:12:14,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 14:12:14,307 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 14:12:14,307 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:14,309 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:12:14,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:14,311 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,313 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:14,313 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:12:14,314 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:14,314 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:12:14,314 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:14,314 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:14,314 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:14,315 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:12:14,315 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:14,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-09-25 14:12:14,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:14,318 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,320 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:14,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:14,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:14,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:12:14,321 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:14,322 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:12:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:14,322 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:14,322 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:14,324 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-09-25 14:12:14,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:12:14,326 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:12:14,331 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:12:14,331 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:12:14,332 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:12:14,332 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 14:12:14,332 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:12:14,332 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:12:14,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:12:14,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:12:14,333 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:12:14,333 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:12:14,395 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 14:12:14,396 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [584114293] [2020-09-25 14:12:14,396 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:12:14,396 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 14:12:14,397 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [569297664] [2020-09-25 14:12:14,397 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 14:12:14,398 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:12:14,398 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 14:12:14,398 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=88, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:12:14,398 INFO L87 Difference]: Start difference. First operand 321 states and 349 transitions. Second operand 11 states. [2020-09-25 14:12:14,926 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:12:16,099 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:16,449 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:12:16,755 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:17,076 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:12:17,375 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 14:12:17,760 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:12:17,760 INFO L93 Difference]: Finished difference Result 578 states and 685 transitions. [2020-09-25 14:12:17,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 14:12:17,761 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 169 [2020-09-25 14:12:17,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:12:17,763 INFO L225 Difference]: With dead ends: 578 [2020-09-25 14:12:17,763 INFO L226 Difference]: Without dead ends: 0 [2020-09-25 14:12:17,768 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 50 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 62 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=166, Invalid=386, Unknown=0, NotChecked=0, Total=552 [2020-09-25 14:12:17,768 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-09-25 14:12:17,768 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-09-25 14:12:17,768 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-09-25 14:12:17,769 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-09-25 14:12:17,769 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 169 [2020-09-25 14:12:17,769 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:12:17,769 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-09-25 14:12:17,769 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 14:12:17,770 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-09-25 14:12:17,770 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-09-25 14:12:17,770 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:12:17,773 INFO L343 DoubleDeckerVisitor]: Before removal of dead ends 0 states and 0 transitions. [2020-09-25 14:12:17,982 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:18,162 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:18,314 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 198 DAG size of output: 13 [2020-09-25 14:12:18,491 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:18,668 WARN L193 SmtUtils]: Spent 168.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:18,827 WARN L193 SmtUtils]: Spent 158.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:18,991 WARN L193 SmtUtils]: Spent 159.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:19,126 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 14:12:19,281 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:19,434 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:19,592 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:19,750 WARN L193 SmtUtils]: Spent 157.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:19,904 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:20,059 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:20,212 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:20,365 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:20,518 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:20,843 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:21,197 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 14:12:21,531 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 14:12:22,137 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 14:12:22,470 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 14:12:22,805 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 190 [2020-09-25 14:12:23,219 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:23,541 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:23,863 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:24,004 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:12:24,152 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:24,304 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:24,457 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:24,605 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:24,752 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:24,902 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:25,055 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:25,208 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:25,360 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:25,508 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:25,656 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:25,803 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:25,951 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:26,103 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:26,251 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:26,404 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:26,558 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:26,710 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:26,862 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:27,014 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:27,162 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:27,311 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:27,464 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:27,570 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 14:12:27,721 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:27,873 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:28,026 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:28,178 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:28,331 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:28,480 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:28,634 WARN L193 SmtUtils]: Spent 152.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:28,786 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:28,942 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:29,092 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:29,241 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:29,392 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:29,547 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:29,694 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:29,847 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:30,167 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:30,495 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:12:30,821 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:12:31,415 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:12:31,742 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:12:32,069 WARN L193 SmtUtils]: Spent 325.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 190 [2020-09-25 14:12:32,481 WARN L193 SmtUtils]: Spent 321.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:32,805 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:33,137 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:33,289 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:33,436 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:33,588 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:33,738 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:33,886 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:34,033 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:34,182 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:34,332 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:34,484 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:34,636 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:34,784 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:34,937 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:35,525 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:35,845 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:36,000 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:36,139 WARN L193 SmtUtils]: Spent 108.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 14:12:36,287 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:36,435 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:36,582 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:36,730 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:36,877 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:37,029 WARN L193 SmtUtils]: Spent 151.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 14:12:37,177 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:37,283 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 14:12:37,431 WARN L193 SmtUtils]: Spent 146.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:12:37,537 WARN L193 SmtUtils]: Spent 105.00 ms on a formula simplification. DAG size of input: 204 DAG size of output: 9 [2020-09-25 14:12:38,124 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:38,445 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 188 [2020-09-25 14:12:38,852 WARN L193 SmtUtils]: Spent 403.00 ms on a formula simplification. DAG size of input: 138 DAG size of output: 11 [2020-09-25 14:12:39,062 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 14:12:39,275 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification. DAG size of input: 136 DAG size of output: 1 [2020-09-25 14:12:39,512 WARN L193 SmtUtils]: Spent 179.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 14:12:39,664 WARN L193 SmtUtils]: Spent 149.00 ms on a formula simplification. DAG size of input: 139 DAG size of output: 22 [2020-09-25 14:12:40,057 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification. DAG size of input: 137 DAG size of output: 11 [2020-09-25 14:12:40,461 WARN L193 SmtUtils]: Spent 399.00 ms on a formula simplification. DAG size of input: 141 DAG size of output: 15