/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=0.3 --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_product52.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 11:58:44,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 11:58:44,680 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 11:58:44,706 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 11:58:44,707 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 11:58:44,708 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 11:58:44,710 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 11:58:44,712 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 11:58:44,714 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 11:58:44,715 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 11:58:44,716 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 11:58:44,717 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 11:58:44,718 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 11:58:44,719 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 11:58:44,720 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 11:58:44,722 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 11:58:44,723 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 11:58:44,724 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 11:58:44,726 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 11:58:44,728 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 11:58:44,730 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 11:58:44,731 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 11:58:44,733 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 11:58:44,734 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 11:58:44,736 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 11:58:44,736 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 11:58:44,737 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 11:58:44,738 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 11:58:44,738 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 11:58:44,739 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 11:58:44,740 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 11:58:44,740 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 11:58:44,741 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 11:58:44,742 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 11:58:44,743 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 11:58:44,744 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 11:58:44,744 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 11:58:44,745 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 11:58:44,745 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 11:58:44,746 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 11:58:44,747 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 11:58:44,748 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 11:58:44,775 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 11:58:44,775 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 11:58:44,777 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 11:58:44,777 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 11:58:44,777 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 11:58:44,778 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 11:58:44,778 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 11:58:44,778 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 11:58:44,778 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 11:58:44,778 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 11:58:44,779 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 11:58:44,779 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 11:58:44,779 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 11:58:44,779 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 11:58:44,779 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 11:58:44,780 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 11:58:44,780 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 11:58:44,780 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 11:58:44,780 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 11:58:44,780 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 11:58:44,781 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 11:58:44,781 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:58:44,781 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 11:58:44,781 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 11:58:44,782 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 11:58:44,782 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 11:58:44,782 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 11:58:44,782 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 11:58:44,782 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 11:58:44,783 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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;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=0.3;log-additional-information=true; [2020-09-25 11:58:45,247 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 11:58:45,273 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 11:58:45,279 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 11:58:45,281 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 11:58:45,282 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 11:58:45,283 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-09-25 11:58:45,380 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79d749251/9a956fad43ba41828d81c26254351089/FLAGd1bb13cc7 [2020-09-25 11:58:46,015 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 11:58:46,016 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product52.cil.c [2020-09-25 11:58:46,032 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79d749251/9a956fad43ba41828d81c26254351089/FLAGd1bb13cc7 [2020-09-25 11:58:46,274 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/79d749251/9a956fad43ba41828d81c26254351089 [2020-09-25 11:58:46,287 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 11:58:46,291 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 11:58:46,293 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 11:58:46,293 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 11:58:46,299 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 11:58:46,301 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:58:46" (1/1) ... [2020-09-25 11:58:46,306 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5bbc2ce6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:46, skipping insertion in model container [2020-09-25 11:58:46,306 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 11:58:46" (1/1) ... [2020-09-25 11:58:46,317 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 11:58:46,396 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 11:58:46,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:58:46,846 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 11:58:46,984 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 11:58:47,034 INFO L208 MainTranslator]: Completed translation [2020-09-25 11:58:47,035 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:47 WrapperNode [2020-09-25 11:58:47,035 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 11:58:47,036 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 11:58:47,036 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 11:58:47,036 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 11:58:47,050 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:47" (1/1) ... [2020-09-25 11:58:47,051 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:47" (1/1) ... [2020-09-25 11:58:47,073 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:47" (1/1) ... [2020-09-25 11:58:47,074 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:47" (1/1) ... [2020-09-25 11:58:47,109 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:47" (1/1) ... [2020-09-25 11:58:47,125 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:47" (1/1) ... [2020-09-25 11:58:47,130 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:47" (1/1) ... [2020-09-25 11:58:47,138 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 11:58:47,139 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 11:58:47,139 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 11:58:47,140 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 11:58:47,141 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:47" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 11:58:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 11:58:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 11:58:47,241 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 11:58:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 11:58:47,242 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 11:58:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 11:58:47,243 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 11:58:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 11:58:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 11:58:47,244 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-25 11:58:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 11:58:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 11:58:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 11:58:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:58:47,245 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 11:58:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 11:58:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 11:58:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 11:58:47,247 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 11:58:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 11:58:47,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-25 11:58:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 11:58:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 11:58:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 11:58:47,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 11:58:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 11:58:47,250 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 11:58:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 11:58:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 11:58:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 11:58:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 11:58:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:58:47,251 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 11:58:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 11:58:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 11:58:47,252 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 11:58:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 11:58:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 11:58:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 11:58:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 11:58:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 11:58:47,253 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 11:58:47,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 11:58:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 11:58:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 11:58:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 11:58:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 11:58:47,254 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 11:58:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 11:58:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 11:58:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 11:58:47,255 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-25 11:58:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 11:58:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 11:58:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 11:58:47,256 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 11:58:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 11:58:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 11:58:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 11:58:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 11:58:47,257 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 11:58:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-25 11:58:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 11:58:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 11:58:47,258 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-25 11:58:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-09-25 11:58:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 11:58:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 11:58:47,259 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 11:58:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 11:58:47,260 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 11:58:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 11:58:47,261 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 11:58:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 11:58:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 11:58:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 11:58:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 11:58:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 11:58:47,262 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 11:58:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 11:58:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 11:58:47,263 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 11:58:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 11:58:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 11:58:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 11:58:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 11:58:47,264 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 11:58:47,265 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 11:58:47,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 11:58:47,265 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 11:58:47,265 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 11:58:47,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 11:58:47,265 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 11:58:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 11:58:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 11:58:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 11:58:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 11:58:47,266 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 11:58:48,486 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 11:58:48,486 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 11:58:48,494 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:58:48 BoogieIcfgContainer [2020-09-25 11:58:48,495 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 11:58:48,496 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 11:58:48,496 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 11:58:48,500 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 11:58:48,501 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 11:58:46" (1/3) ... [2020-09-25 11:58:48,502 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca58639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:58:48, skipping insertion in model container [2020-09-25 11:58:48,502 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 11:58:47" (2/3) ... [2020-09-25 11:58:48,503 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6ca58639 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 11:58:48, skipping insertion in model container [2020-09-25 11:58:48,503 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 11:58:48" (3/3) ... [2020-09-25 11:58:48,505 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product52.cil.c [2020-09-25 11:58:48,519 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 11:58:48,532 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 11:58:48,559 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 11:58:48,599 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 11:58:48,599 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 11:58:48,600 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 11:58:48,600 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 11:58:48,600 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 11:58:48,600 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 11:58:48,600 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 11:58:48,601 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 11:58:48,634 INFO L276 IsEmpty]: Start isEmpty. Operand 328 states. [2020-09-25 11:58:48,653 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-25 11:58:48,654 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:58:48,655 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 11:58:48,656 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:58:48,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:58:48,666 INFO L82 PathProgramCache]: Analyzing trace with hash 254159831, now seen corresponding path program 1 times [2020-09-25 11:58:48,680 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:58:48,680 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1521805467] [2020-09-25 11:58:48,681 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:58:49,035 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:49,232 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:49,485 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:51,063 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:52,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:54,111 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:54,112 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 173 [2020-09-25 11:58:54,112 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:58:54,113 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5060 [2020-09-25 11:58:54,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:54,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:54,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 11:58:54,128 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 11:58:54,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 11:58:54,130 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 16 [2020-09-25 11:58:54,829 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:58:54,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:58:54,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:54,966 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:55,328 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:55,329 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:58:55,329 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:55,329 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 414 [2020-09-25 11:58:55,330 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:55,330 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:55,330 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 11:58:55,331 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:55,406 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:58:55,407 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:55,409 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:55,413 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:55,413 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:55,413 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:55,414 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:58:55,414 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:55,414 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:55,414 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:55,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:55,415 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:58:55,415 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:55,417 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:58:55,418 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:55,420 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:55,423 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:55,424 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:55,424 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:55,424 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:58:55,424 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:55,425 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:55,425 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:58:55,425 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:55,427 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:58:55,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:55,431 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:55,439 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:55,439 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:55,440 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:55,440 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 11:58:55,440 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:55,440 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:55,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:55,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:55,441 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:58:55,441 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:55,444 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:58:55,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:55,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:55,450 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:55,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:58:55,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:55,451 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:58:55,451 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:55,451 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:55,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:58:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:58:55,452 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:58:55,452 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:55,454 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:58:55,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:55,456 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:55,459 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:55,459 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:55,459 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:55,460 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:58:55,460 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:55,460 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:58:55,461 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:55,461 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:55,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 11:58:55,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:55,466 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:55,468 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:58:55,468 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:58:55,469 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:58:55,469 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:58:55,469 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:58:55,470 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:58:55,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:58:55,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:58:55,470 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:58:55,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:58:55,502 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 11:58:55,503 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1521805467] [2020-09-25 11:58:55,505 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:58:55,506 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 11:58:55,507 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1941231993] [2020-09-25 11:58:55,513 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 11:58:55,514 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:58:55,534 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 11:58:55,535 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 11:58:55,538 INFO L87 Difference]: Start difference. First operand 328 states. Second operand 4 states. [2020-09-25 11:58:56,209 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:58:58,685 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:58:58,686 INFO L93 Difference]: Finished difference Result 705 states and 852 transitions. [2020-09-25 11:58:58,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 11:58:58,688 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 142 [2020-09-25 11:58:58,689 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:58:58,712 INFO L225 Difference]: With dead ends: 705 [2020-09-25 11:58:58,712 INFO L226 Difference]: Without dead ends: 494 [2020-09-25 11:58:58,718 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 22 GetRequests, 18 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 11:58:58,739 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 494 states. [2020-09-25 11:58:58,868 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 494 to 422. [2020-09-25 11:58:58,870 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 422 states. [2020-09-25 11:58:58,873 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 422 states to 422 states and 471 transitions. [2020-09-25 11:58:58,876 INFO L78 Accepts]: Start accepts. Automaton has 422 states and 471 transitions. Word has length 142 [2020-09-25 11:58:58,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:58:58,877 INFO L479 AbstractCegarLoop]: Abstraction has 422 states and 471 transitions. [2020-09-25 11:58:58,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 11:58:58,877 INFO L276 IsEmpty]: Start isEmpty. Operand 422 states and 471 transitions. [2020-09-25 11:58:58,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-25 11:58:58,882 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:58:58,883 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:58:58,883 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 11:58:58,883 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:58:58,884 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:58:58,884 INFO L82 PathProgramCache]: Analyzing trace with hash 67683551, now seen corresponding path program 1 times [2020-09-25 11:58:58,884 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:58:58,884 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [54094390] [2020-09-25 11:58:58,885 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:58:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:58:58,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:59,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:59,312 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:58:59,678 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:03,984 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:03,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 193 [2020-09-25 11:59:03,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:59:03,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5042 [2020-09-25 11:59:03,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:03,985 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:03,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:59:03,986 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 11:59:03,987 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 72 [2020-09-25 11:59:03,987 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 11:59:04,357 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:04,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:04,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:04,436 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:04,692 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:04,693 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:04,693 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:04,693 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 293 [2020-09-25 11:59:04,693 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:04,694 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:04,694 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:59:04,695 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:04,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:04,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:04,737 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:04,740 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:04,740 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:04,740 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:04,740 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:04,741 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:04,741 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:04,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:04,741 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:04,742 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:04,742 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:04,743 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:04,744 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:04,746 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:04,748 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:04,749 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:04,749 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:04,749 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:04,749 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:04,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:04,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:04,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:04,750 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:04,750 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:04,752 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:04,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:04,755 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:04,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:04,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:04,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:04,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:59:04,763 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:04,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:04,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:04,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:04,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:04,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:04,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:04,770 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:04,770 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:04,770 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:04,771 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:04,771 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:04,771 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:04,771 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:04,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:04,772 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:04,772 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:04,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 11:59:04,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:04,785 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:04,792 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:04,796 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:04,796 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 22 [2020-09-25 11:59:04,797 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:59:04,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-25 11:59:04,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:04,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 6 [2020-09-25 11:59:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:59:04,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 21 [2020-09-25 11:59:04,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:04,810 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:04,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:04,814 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:04,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:04,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 11:59:04,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:04,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:59:04,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:04,823 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:59:04,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 14 [2020-09-25 11:59:04,824 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:04,830 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 11:59:04,831 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:04,832 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:04,834 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:04,835 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:04,835 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:04,835 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:04,836 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:04,836 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:04,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:04,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:04,836 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:04,837 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:04,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-25 11:59:04,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:04,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:04,842 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:04,843 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:04,843 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:04,843 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:04,843 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:04,844 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:04,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:04,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:04,844 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:04,844 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:04,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 11:59:04,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:04,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:04,850 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:04,850 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:04,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:04,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:04,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:04,851 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:04,852 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:04,852 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:04,882 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 11:59:04,883 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [54094390] [2020-09-25 11:59:04,883 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:04,884 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 11:59:04,884 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2000918502] [2020-09-25 11:59:04,886 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 11:59:04,886 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:04,887 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 11:59:04,887 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-25 11:59:04,887 INFO L87 Difference]: Start difference. First operand 422 states and 471 transitions. Second operand 6 states. [2020-09-25 11:59:05,370 WARN L193 SmtUtils]: Spent 241.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:07,038 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:08,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:08,569 INFO L93 Difference]: Finished difference Result 1134 states and 1404 transitions. [2020-09-25 11:59:08,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 11:59:08,572 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 156 [2020-09-25 11:59:08,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:08,593 INFO L225 Difference]: With dead ends: 1134 [2020-09-25 11:59:08,594 INFO L226 Difference]: Without dead ends: 822 [2020-09-25 11:59:08,601 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:59:08,606 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 822 states. [2020-09-25 11:59:08,725 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 822 to 677. [2020-09-25 11:59:08,725 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 677 states. [2020-09-25 11:59:08,730 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 677 states to 677 states and 773 transitions. [2020-09-25 11:59:08,731 INFO L78 Accepts]: Start accepts. Automaton has 677 states and 773 transitions. Word has length 156 [2020-09-25 11:59:08,731 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:08,732 INFO L479 AbstractCegarLoop]: Abstraction has 677 states and 773 transitions. [2020-09-25 11:59:08,732 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 11:59:08,732 INFO L276 IsEmpty]: Start isEmpty. Operand 677 states and 773 transitions. [2020-09-25 11:59:08,735 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-25 11:59:08,735 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:08,735 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:59:08,736 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 11:59:08,736 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:08,736 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:08,736 INFO L82 PathProgramCache]: Analyzing trace with hash -409466612, now seen corresponding path program 1 times [2020-09-25 11:59:08,737 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:08,737 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [220761027] [2020-09-25 11:59:08,737 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:08,785 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:08,836 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:09,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:09,740 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:10,789 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:13,795 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:13,795 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 192 [2020-09-25 11:59:13,796 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 4 [2020-09-25 11:59:13,797 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 11:59:13,797 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:13,797 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:13,797 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 11:59:13,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 11:59:13,798 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 11:59:13,798 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:14,193 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:14,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:14,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:14,266 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:14,495 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:14,496 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:14,496 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:14,496 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 265 [2020-09-25 11:59:14,497 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:14,497 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:14,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:14,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:14,498 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 11:59:14,499 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:14,545 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:14,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:14,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:14,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:14,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:14,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:14,552 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:14,552 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:14,552 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:14,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:14,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:14,553 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:14,554 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:14,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:14,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:14,557 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:14,561 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:14,561 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:14,564 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:14,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:14,565 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:14,565 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:14,566 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:14,567 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:14,568 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:14,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:14,572 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:14,579 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:14,579 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:14,579 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:14,580 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 11:59:14,580 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:14,580 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:14,583 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:14,584 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:14,584 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 11:59:14,586 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:14,587 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:14,589 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:14,592 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:14,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:14,593 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:14,593 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 11:59:14,593 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:14,594 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:14,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:14,594 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:14,595 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:14,595 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:14,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 11:59:14,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:14,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:14,622 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:14,623 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:59:14,623 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:14,623 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 11:59:14,624 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:14,624 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:14,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:14,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:14,625 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:59:14,626 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:14,629 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-25 11:59:14,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:14,632 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:14,640 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:14,640 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:14,640 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:14,641 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 11:59:14,641 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:14,642 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:14,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:14,642 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:14,643 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:14,643 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:14,735 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-25 11:59:14,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:14,738 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:14,743 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:14,744 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:14,744 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:14,744 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:59:14,750 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:14,750 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:14,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 11:59:14,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 11:59:14,751 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 11:59:14,752 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:14,828 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 11:59:14,831 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [220761027] [2020-09-25 11:59:14,831 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:14,832 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 11:59:14,833 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [900347383] [2020-09-25 11:59:14,836 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 11:59:14,838 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:14,839 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 11:59:14,839 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 11:59:14,839 INFO L87 Difference]: Start difference. First operand 677 states and 773 transitions. Second operand 9 states. [2020-09-25 11:59:15,499 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:17,096 WARN L193 SmtUtils]: Spent 568.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 191 [2020-09-25 11:59:17,674 WARN L193 SmtUtils]: Spent 530.00 ms on a formula simplification. DAG size of input: 201 DAG size of output: 193 [2020-09-25 11:59:18,041 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:18,388 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-25 11:59:18,682 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:59:19,039 WARN L193 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 200 [2020-09-25 11:59:19,353 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:19,892 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 11:59:20,684 WARN L193 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-25 11:59:22,451 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:22,451 INFO L93 Difference]: Finished difference Result 1916 states and 2358 transitions. [2020-09-25 11:59:22,452 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 17 states. [2020-09-25 11:59:22,452 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 161 [2020-09-25 11:59:22,456 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:22,472 INFO L225 Difference]: With dead ends: 1916 [2020-09-25 11:59:22,473 INFO L226 Difference]: Without dead ends: 1269 [2020-09-25 11:59:22,478 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 52 ImplicationChecksByTransitivity, 3.9s TimeCoverageRelationStatistics Valid=107, Invalid=313, Unknown=0, NotChecked=0, Total=420 [2020-09-25 11:59:22,481 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1269 states. [2020-09-25 11:59:22,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1269 to 1119. [2020-09-25 11:59:22,650 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1119 states. [2020-09-25 11:59:22,657 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1268 transitions. [2020-09-25 11:59:22,658 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1268 transitions. Word has length 161 [2020-09-25 11:59:22,658 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:22,659 INFO L479 AbstractCegarLoop]: Abstraction has 1119 states and 1268 transitions. [2020-09-25 11:59:22,659 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 11:59:22,659 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1268 transitions. [2020-09-25 11:59:22,661 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-25 11:59:22,661 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:22,661 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 11:59:22,664 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 11:59:22,665 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:22,665 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:22,665 INFO L82 PathProgramCache]: Analyzing trace with hash -1234625458, now seen corresponding path program 1 times [2020-09-25 11:59:22,665 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:22,666 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1016955889] [2020-09-25 11:59:22,666 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:22,784 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:23,100 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:23,633 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:25,838 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:25,839 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 11:59:25,839 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 11:59:25,839 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3106 [2020-09-25 11:59:25,839 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:25,839 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 11:59:25,839 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 11:59:25,840 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 116 [2020-09-25 11:59:25,840 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:26,225 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 11:59:26,225 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 11:59:26,258 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,293 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 11:59:26,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 234 [2020-09-25 11:59:26,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,495 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 11:59:26,496 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,537 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 11:59:26,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,539 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,541 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,541 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:26,541 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,542 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:26,543 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,543 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:26,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,544 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:26,544 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,546 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 11:59:26,546 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,547 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,550 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,551 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:26,551 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,551 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:26,551 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,551 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:26,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,552 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:26,552 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:26,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 11:59:26,555 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,556 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,563 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,563 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:26,563 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,564 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:59:26,564 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,564 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:26,564 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,565 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:26,565 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 11:59:26,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,569 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,571 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,571 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 11:59:26,572 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,572 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 11:59:26,572 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,572 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:26,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,573 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 11:59:26,573 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:26,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-25 11:59:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,584 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,590 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,590 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:59:26,590 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,591 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:59:26,591 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,591 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:26,591 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,592 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 11:59:26,592 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:26,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-25 11:59:26,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,609 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,613 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,615 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,616 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 11:59:26,616 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 11:59:26,616 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 11:59:26,616 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,616 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-25 11:59:26,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 1 [2020-09-25 11:59:26,617 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 9 [2020-09-25 11:59:26,617 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,633 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-25 11:59:26,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,636 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,638 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,639 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:26,639 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,639 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 11:59:26,639 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,639 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 11:59:26,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,640 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:26,640 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 11:59:26,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-25 11:59:26,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:26,645 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 11:59:26,650 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 11:59:26,650 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 11:59:26,651 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 11:59:26,651 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 11:59:26,651 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 11:59:26,651 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.3 [2020-09-25 11:59:26,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 11:59:26,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 11:59:26,652 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 11:59:26,652 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 11:59:26,748 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 11:59:26,749 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1016955889] [2020-09-25 11:59:26,749 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 11:59:26,749 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-25 11:59:26,749 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1698712190] [2020-09-25 11:59:26,750 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-25 11:59:26,750 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 11:59:26,750 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-25 11:59:26,750 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-25 11:59:26,750 INFO L87 Difference]: Start difference. First operand 1119 states and 1268 transitions. Second operand 11 states. [2020-09-25 11:59:27,318 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:28,712 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:29,067 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 11:59:29,408 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:29,770 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-25 11:59:30,123 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-25 11:59:30,877 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 11:59:31,128 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:31,492 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 11:59:33,380 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 11:59:33,381 INFO L93 Difference]: Finished difference Result 1518 states and 1859 transitions. [2020-09-25 11:59:33,381 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 22 states. [2020-09-25 11:59:33,381 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 166 [2020-09-25 11:59:33,382 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 11:59:33,390 INFO L225 Difference]: With dead ends: 1518 [2020-09-25 11:59:33,390 INFO L226 Difference]: Without dead ends: 1515 [2020-09-25 11:59:33,391 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 49 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 124 ImplicationChecksByTransitivity, 3.0s TimeCoverageRelationStatistics Valid=202, Invalid=500, Unknown=0, NotChecked=0, Total=702 [2020-09-25 11:59:33,393 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1515 states. [2020-09-25 11:59:33,533 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1515 to 1119. [2020-09-25 11:59:33,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1119 states. [2020-09-25 11:59:33,538 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1119 states to 1119 states and 1266 transitions. [2020-09-25 11:59:33,539 INFO L78 Accepts]: Start accepts. Automaton has 1119 states and 1266 transitions. Word has length 166 [2020-09-25 11:59:33,539 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 11:59:33,539 INFO L479 AbstractCegarLoop]: Abstraction has 1119 states and 1266 transitions. [2020-09-25 11:59:33,539 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-25 11:59:33,540 INFO L276 IsEmpty]: Start isEmpty. Operand 1119 states and 1266 transitions. [2020-09-25 11:59:33,543 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 200 [2020-09-25 11:59:33,544 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 11:59:33,544 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, 1, 1, 1, 1, 1, 1, 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 11:59:33,544 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 11:59:33,544 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 11:59:33,545 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 11:59:33,545 INFO L82 PathProgramCache]: Analyzing trace with hash 1793051015, now seen corresponding path program 1 times [2020-09-25 11:59:33,545 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 11:59:33,545 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [128509144] [2020-09-25 11:59:33,546 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 11:59:33,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 11:59:33,655 FATAL L256 erpolLogProxyWrapper]: Now shrinking...