/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 interpolation-heuristic=FIRST --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_spec3_product01.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 15:46:02,144 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 15:46:02,147 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 15:46:02,174 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 15:46:02,174 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 15:46:02,176 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 15:46:02,177 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 15:46:02,179 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 15:46:02,181 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 15:46:02,182 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 15:46:02,183 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 15:46:02,184 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 15:46:02,185 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 15:46:02,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 15:46:02,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 15:46:02,188 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 15:46:02,189 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 15:46:02,191 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 15:46:02,193 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 15:46:02,195 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 15:46:02,197 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 15:46:02,198 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 15:46:02,200 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 15:46:02,201 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 15:46:02,204 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 15:46:02,204 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 15:46:02,204 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 15:46:02,206 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 15:46:02,206 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 15:46:02,207 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 15:46:02,208 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 15:46:02,209 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 15:46:02,209 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 15:46:02,211 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 15:46:02,212 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 15:46:02,212 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 15:46:02,213 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 15:46:02,213 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 15:46:02,213 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 15:46:02,214 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 15:46:02,215 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 15:46:02,216 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 [2020-09-24 15:46:02,244 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 15:46:02,244 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 15:46:02,245 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 15:46:02,246 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 15:46:02,246 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 15:46:02,246 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 15:46:02,246 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 15:46:02,247 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 15:46:02,247 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 15:46:02,247 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 15:46:02,247 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 15:46:02,247 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 15:46:02,247 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 15:46:02,248 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 15:46:02,248 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 15:46:02,248 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 15:46:02,248 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 15:46:02,249 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 15:46:02,249 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 15:46:02,249 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 15:46:02,249 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 15:46:02,249 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 15:46:02,250 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 15:46:02,250 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 15:46:02,250 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 15:46:02,250 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 15:46:02,250 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 15:46:02,251 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 15:46:02,254 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 15:46:02,254 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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;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;interpolation-heuristic=FIRST;log-additional-information=true; [2020-09-24 15:46:02,693 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 15:46:02,711 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 15:46:02,716 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 15:46:02,718 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 15:46:02,718 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 15:46:02,720 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-24 15:46:02,821 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e59685951/9fe69d277f504877892d1a011d000b32/FLAG022ae6de1 [2020-09-24 15:46:03,425 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 15:46:03,426 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product01.cil.c [2020-09-24 15:46:03,440 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e59685951/9fe69d277f504877892d1a011d000b32/FLAG022ae6de1 [2020-09-24 15:46:03,703 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e59685951/9fe69d277f504877892d1a011d000b32 [2020-09-24 15:46:03,716 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 15:46:03,721 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 15:46:03,722 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:03,723 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 15:46:03,727 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 15:46:03,728 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:03" (1/1) ... [2020-09-24 15:46:03,732 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@ff1ef1e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:03, skipping insertion in model container [2020-09-24 15:46:03,732 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 03:46:03" (1/1) ... [2020-09-24 15:46:03,743 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 15:46:03,793 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 15:46:04,303 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:04,318 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 15:46:04,392 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 15:46:04,429 INFO L208 MainTranslator]: Completed translation [2020-09-24 15:46:04,429 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:04 WrapperNode [2020-09-24 15:46:04,429 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 15:46:04,430 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 15:46:04,430 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 15:46:04,431 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 15:46:04,445 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:04" (1/1) ... [2020-09-24 15:46:04,445 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:04" (1/1) ... [2020-09-24 15:46:04,474 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:04" (1/1) ... [2020-09-24 15:46:04,475 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:04" (1/1) ... [2020-09-24 15:46:04,511 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:04" (1/1) ... [2020-09-24 15:46:04,522 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:04" (1/1) ... [2020-09-24 15:46:04,527 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:04" (1/1) ... [2020-09-24 15:46:04,534 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 15:46:04,535 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 15:46:04,535 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 15:46:04,535 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 15:46:04,537 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:04" (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 [2020-09-24 15:46:04,610 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 15:46:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 15:46:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 15:46:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 15:46:04,611 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 15:46:04,612 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 15:46:04,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 15:46:04,612 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 15:46:04,612 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 15:46:04,612 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 15:46:04,613 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 15:46:04,613 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 15:46:04,613 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 15:46:04,613 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 15:46:04,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:04,613 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 15:46:04,614 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 15:46:04,614 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 15:46:04,614 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 15:46:04,614 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 15:46:04,615 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 15:46:04,615 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 15:46:04,615 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 15:46:04,615 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 15:46:04,615 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 15:46:04,615 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 15:46:04,616 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 15:46:04,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:04,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:04,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:04,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 15:46:04,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 15:46:04,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 15:46:04,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 15:46:04,617 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 15:46:04,617 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 15:46:04,617 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 15:46:04,617 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 15:46:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 15:46:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 15:46:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 15:46:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 15:46:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 15:46:04,618 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 15:46:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-24 15:46:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 15:46:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 15:46:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 15:46:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 15:46:04,619 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 15:46:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 15:46:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 15:46:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 15:46:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 15:46:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 15:46:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 15:46:04,620 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 15:46:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 15:46:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 15:46:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 15:46:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 15:46:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 15:46:04,621 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 15:46:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 15:46:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 15:46:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 15:46:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 15:46:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 15:46:04,622 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 15:46:04,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 15:46:04,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 15:46:04,623 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 15:46:04,623 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 15:46:04,623 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 15:46:04,623 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 15:46:04,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 15:46:04,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 15:46:04,624 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 15:46:04,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 15:46:04,624 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 15:46:04,624 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 15:46:05,702 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 15:46:05,702 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 15:46:05,709 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:05 BoogieIcfgContainer [2020-09-24 15:46:05,710 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 15:46:05,711 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 15:46:05,711 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 15:46:05,715 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 15:46:05,715 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 03:46:03" (1/3) ... [2020-09-24 15:46:05,716 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773d573f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:05, skipping insertion in model container [2020-09-24 15:46:05,717 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 03:46:04" (2/3) ... [2020-09-24 15:46:05,717 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@773d573f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 03:46:05, skipping insertion in model container [2020-09-24 15:46:05,718 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 03:46:05" (3/3) ... [2020-09-24 15:46:05,720 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product01.cil.c [2020-09-24 15:46:05,732 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 15:46:05,746 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 15:46:05,770 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 15:46:05,802 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 15:46:05,803 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 15:46:05,803 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 15:46:05,803 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 15:46:05,803 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 15:46:05,803 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 15:46:05,803 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 15:46:05,804 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 15:46:05,831 INFO L276 IsEmpty]: Start isEmpty. Operand 258 states. [2020-09-24 15:46:05,848 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-24 15:46:05,849 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:05,850 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] [2020-09-24 15:46:05,851 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:05,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:05,859 INFO L82 PathProgramCache]: Analyzing trace with hash -1134805363, now seen corresponding path program 1 times [2020-09-24 15:46:05,868 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:05,868 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1118257170] [2020-09-24 15:46:05,869 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:06,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,222 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,223 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,223 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,223 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,223 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-24 15:46:06,224 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,224 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-24 15:46:06,224 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-24 15:46:06,225 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:06,225 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:06,695 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:06,698 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:06,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,739 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,741 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,741 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,742 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,742 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:06,742 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,743 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-24 15:46:06,743 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,743 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:06,744 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:06,744 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:06,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:06,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,853 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,853 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,853 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,853 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:06,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,854 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:06,854 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:06,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:06,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:06,855 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:06,857 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:06,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,858 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,859 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,859 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,859 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,859 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:06,860 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,860 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:06,860 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:06,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:06,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:06,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:06,863 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:06,864 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,865 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,865 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,866 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,866 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,866 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:06,866 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,867 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:06,867 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:06,867 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:06,868 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:06,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:06,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,872 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,872 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,872 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,873 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,873 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:06,873 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,873 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:06,874 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:06,874 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:06,875 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:06,876 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-24 15:46:06,877 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,878 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,878 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,879 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,879 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:06,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:06,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:06,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:06,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:06,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:06,883 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:06,884 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,885 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,886 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,886 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,886 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,886 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:06,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,887 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:06,887 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,887 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:06,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:06,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:06,888 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:06,890 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:06,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:06,893 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:06,893 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:06,893 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:06,893 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:06,894 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:06,894 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:06,894 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:06,894 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:06,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:06,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:06,895 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:06,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:06,930 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:06,931 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1118257170] [2020-09-24 15:46:06,933 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:06,934 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-24 15:46:06,935 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1371689941] [2020-09-24 15:46:06,943 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-24 15:46:06,943 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:06,961 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-24 15:46:06,962 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:06,965 INFO L87 Difference]: Start difference. First operand 258 states. Second operand 3 states. [2020-09-24 15:46:08,120 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:08,120 INFO L93 Difference]: Finished difference Result 365 states and 438 transitions. [2020-09-24 15:46:08,122 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-24 15:46:08,123 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-24 15:46:08,125 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:08,158 INFO L225 Difference]: With dead ends: 365 [2020-09-24 15:46:08,158 INFO L226 Difference]: Without dead ends: 238 [2020-09-24 15:46:08,166 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-24 15:46:08,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-09-24 15:46:08,306 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 201. [2020-09-24 15:46:08,308 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 201 states. [2020-09-24 15:46:08,318 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 201 states to 201 states and 215 transitions. [2020-09-24 15:46:08,320 INFO L78 Accepts]: Start accepts. Automaton has 201 states and 215 transitions. Word has length 153 [2020-09-24 15:46:08,324 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:08,324 INFO L479 AbstractCegarLoop]: Abstraction has 201 states and 215 transitions. [2020-09-24 15:46:08,324 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-24 15:46:08,325 INFO L276 IsEmpty]: Start isEmpty. Operand 201 states and 215 transitions. [2020-09-24 15:46:08,339 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-24 15:46:08,339 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:08,340 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] [2020-09-24 15:46:08,346 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-24 15:46:08,346 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:08,347 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:08,347 INFO L82 PathProgramCache]: Analyzing trace with hash 2008587575, now seen corresponding path program 1 times [2020-09-24 15:46:08,347 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:08,347 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2069250899] [2020-09-24 15:46:08,348 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:08,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:08,474 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:08,474 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:08,474 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:08,474 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:08,475 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-24 15:46:08,475 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:08,475 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-24 15:46:08,475 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:08,475 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-24 15:46:08,476 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-24 15:46:08,476 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:08,878 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:08,879 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:08,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:08,895 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:08,895 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:08,895 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:08,896 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:08,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:08,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:08,896 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:08,896 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:08,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:08,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:08,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:08,897 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:08,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:08,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:08,958 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:08,958 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:08,958 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:08,958 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:08,959 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:08,959 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:08,959 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:08,959 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:08,959 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:08,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:08,960 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:08,960 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:08,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:08,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:08,964 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:08,964 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:08,965 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:08,965 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:08,965 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:08,965 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:08,965 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:08,966 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:08,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:08,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:08,966 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:08,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:08,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:08,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:08,969 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:08,969 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:08,969 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:08,970 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:08,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:08,970 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:08,970 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:08,970 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:08,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:08,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:08,971 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:08,971 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:08,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:08,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:08,974 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:08,974 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:08,974 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:08,975 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:08,975 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:08,975 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:08,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:08,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:08,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:08,976 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:08,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-24 15:46:08,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:08,979 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:08,979 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:08,979 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:08,980 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:08,980 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:08,980 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:08,980 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:08,980 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:08,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:08,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:08,981 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:08,981 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:08,983 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-24 15:46:08,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:08,984 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:08,985 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:08,985 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:08,985 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:08,985 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:08,986 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:08,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:08,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:08,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:08,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:08,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:08,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:08,993 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-24 15:46:08,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:08,995 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:08,995 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:08,995 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:08,995 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:08,995 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:08,996 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:08,998 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:08,999 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:08,999 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:09,000 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:09,044 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:09,045 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2069250899] [2020-09-24 15:46:09,045 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:09,045 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:46:09,046 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753413153] [2020-09-24 15:46:09,049 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:46:09,049 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:09,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:46:09,050 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:46:09,050 INFO L87 Difference]: Start difference. First operand 201 states and 215 transitions. Second operand 4 states. [2020-09-24 15:46:09,752 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-24 15:46:10,365 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:10,365 INFO L93 Difference]: Finished difference Result 282 states and 313 transitions. [2020-09-24 15:46:10,366 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:46:10,366 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-24 15:46:10,367 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:10,371 INFO L225 Difference]: With dead ends: 282 [2020-09-24 15:46:10,372 INFO L226 Difference]: Without dead ends: 221 [2020-09-24 15:46:10,374 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:46:10,378 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-24 15:46:10,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2020-09-24 15:46:10,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-24 15:46:10,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 202 transitions. [2020-09-24 15:46:10,406 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 202 transitions. Word has length 154 [2020-09-24 15:46:10,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:10,407 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 202 transitions. [2020-09-24 15:46:10,407 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:46:10,407 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 202 transitions. [2020-09-24 15:46:10,409 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-24 15:46:10,409 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:10,410 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] [2020-09-24 15:46:10,410 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-24 15:46:10,410 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:10,410 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:10,410 INFO L82 PathProgramCache]: Analyzing trace with hash 1539733420, now seen corresponding path program 1 times [2020-09-24 15:46:10,411 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:10,411 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [176461856] [2020-09-24 15:46:10,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:10,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:10,476 FATAL L256 erpolLogProxyWrapper]: Difference in size: 5 [2020-09-24 15:46:10,476 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:10,476 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:10,477 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:10,477 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-24 15:46:10,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:10,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-24 15:46:10,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:10,477 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:10,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-24 15:46:10,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 70 [2020-09-24 15:46:10,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:10,806 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:10,808 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:10,845 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:10,848 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:10,848 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:10,849 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:10,849 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:10,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:10,849 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:10,849 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:10,850 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:10,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:10,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:10,850 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-24 15:46:10,850 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:10,897 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:10,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:10,900 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:10,900 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:10,900 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:10,900 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:10,900 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:10,901 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:10,901 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:10,901 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:10,901 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:10,902 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:10,902 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:10,903 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:10,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:10,905 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:10,905 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:10,906 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:10,906 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:10,906 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:10,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:10,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:10,907 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:10,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:10,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:10,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:10,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:10,911 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:10,911 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:10,912 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:10,912 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:10,912 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:10,912 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:10,912 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:10,913 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:10,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:10,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:10,913 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:10,913 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:10,916 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:10,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:10,918 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:10,918 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:10,918 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:10,918 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:10,919 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:10,919 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:10,919 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:10,919 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:10,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:10,919 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:10,920 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:10,920 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:10,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-24 15:46:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:10,923 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:10,923 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:10,924 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:10,924 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:10,924 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:10,924 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:10,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:10,925 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:10,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:10,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:10,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:10,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:10,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-24 15:46:10,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:10,929 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:10,929 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:10,929 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:10,929 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:10,930 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:10,930 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:10,930 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:10,930 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:10,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:10,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:10,931 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:10,931 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:10,933 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-24 15:46:10,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:10,934 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:10,934 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:10,935 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:10,935 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:10,935 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:10,935 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:10,935 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:10,936 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:10,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:10,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:10,936 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:10,936 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:11,009 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:11,009 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [176461856] [2020-09-24 15:46:11,009 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:11,010 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-24 15:46:11,010 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [964949131] [2020-09-24 15:46:11,010 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-24 15:46:11,011 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:11,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-24 15:46:11,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-24 15:46:11,011 INFO L87 Difference]: Start difference. First operand 191 states and 202 transitions. Second operand 4 states. [2020-09-24 15:46:11,528 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:12,136 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:12,136 INFO L93 Difference]: Finished difference Result 302 states and 338 transitions. [2020-09-24 15:46:12,137 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-24 15:46:12,137 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 163 [2020-09-24 15:46:12,138 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:12,140 INFO L225 Difference]: With dead ends: 302 [2020-09-24 15:46:12,140 INFO L226 Difference]: Without dead ends: 221 [2020-09-24 15:46:12,141 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 18 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-24 15:46:12,142 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-09-24 15:46:12,169 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 191. [2020-09-24 15:46:12,169 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 191 states. [2020-09-24 15:46:12,170 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 191 states to 191 states and 201 transitions. [2020-09-24 15:46:12,171 INFO L78 Accepts]: Start accepts. Automaton has 191 states and 201 transitions. Word has length 163 [2020-09-24 15:46:12,171 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:12,171 INFO L479 AbstractCegarLoop]: Abstraction has 191 states and 201 transitions. [2020-09-24 15:46:12,172 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-24 15:46:12,172 INFO L276 IsEmpty]: Start isEmpty. Operand 191 states and 201 transitions. [2020-09-24 15:46:12,174 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-24 15:46:12,174 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:12,174 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] [2020-09-24 15:46:12,174 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-24 15:46:12,175 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:12,175 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:12,175 INFO L82 PathProgramCache]: Analyzing trace with hash -1213081293, now seen corresponding path program 1 times [2020-09-24 15:46:12,175 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:12,175 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1094497351] [2020-09-24 15:46:12,176 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:12,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:12,258 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:12,259 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:12,259 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:12,259 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:12,259 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-24 15:46:12,260 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:12,260 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 27 [2020-09-24 15:46:12,260 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:12,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-24 15:46:12,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-24 15:46:12,260 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 103 [2020-09-24 15:46:12,261 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-24 15:46:12,620 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-24 15:46:12,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-24 15:46:12,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:12,669 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:12,669 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:12,669 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:12,670 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:12,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-24 15:46:12,670 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:12,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:12,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:12,671 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:12,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:12,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-24 15:46:12,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:12,725 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-24 15:46:12,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:12,728 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:12,728 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:12,729 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:12,729 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:12,729 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:12,730 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:12,730 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:12,731 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:12,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:12,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:12,731 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:12,732 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:12,733 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-24 15:46:12,734 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:12,736 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:12,736 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:12,736 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:12,737 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:12,737 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:12,737 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:12,738 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:12,738 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:12,738 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:12,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:12,739 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:12,739 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:12,741 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-24 15:46:12,743 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:12,744 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:12,745 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:12,745 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:12,746 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:12,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:12,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:12,747 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:12,747 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:12,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:12,748 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:12,748 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:12,751 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-24 15:46:12,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:12,753 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:12,754 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:12,754 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:12,754 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:12,755 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:12,755 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:12,755 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:12,756 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:12,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:12,756 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:12,757 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:12,757 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:12,759 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-24 15:46:12,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:12,761 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:12,762 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:12,762 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:12,763 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:12,763 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-24 15:46:12,763 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:12,764 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:12,764 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:12,764 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:12,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:12,765 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-24 15:46:12,765 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:12,767 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-24 15:46:12,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:12,770 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:12,770 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:12,771 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:12,771 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:12,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:12,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:12,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-24 15:46:12,773 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:12,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-24 15:46:12,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:12,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:12,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:12,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-24 15:46:12,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:12,783 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:12,783 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:12,784 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:12,784 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:12,784 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:12,785 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:12,785 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-24 15:46:12,785 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:12,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-24 15:46:12,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-24 15:46:12,786 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-24 15:46:12,787 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:12,820 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-24 15:46:12,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 15:46:12,822 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-24 15:46:12,822 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-24 15:46:12,823 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-24 15:46:12,823 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-24 15:46:12,823 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-24 15:46:12,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-24 15:46:12,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-24 15:46:12,824 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-24 15:46:12,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-24 15:46:12,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-24 15:46:12,824 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-24 15:46:12,825 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-24 15:46:12,908 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-24 15:46:12,908 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1094497351] [2020-09-24 15:46:12,909 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-24 15:46:12,909 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-24 15:46:12,909 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [487292376] [2020-09-24 15:46:12,910 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-24 15:46:12,910 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-24 15:46:12,910 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-24 15:46:12,911 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-24 15:46:12,911 INFO L87 Difference]: Start difference. First operand 191 states and 201 transitions. Second operand 8 states. [2020-09-24 15:46:13,717 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:14,959 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:15,298 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:15,635 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:15,960 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-24 15:46:16,240 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-24 15:46:16,580 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:16,918 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-24 15:46:17,361 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-24 15:46:17,361 INFO L93 Difference]: Finished difference Result 374 states and 427 transitions. [2020-09-24 15:46:17,362 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-24 15:46:17,362 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 166 [2020-09-24 15:46:17,363 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-24 15:46:17,366 INFO L225 Difference]: With dead ends: 374 [2020-09-24 15:46:17,366 INFO L226 Difference]: Without dead ends: 293 [2020-09-24 15:46:17,367 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 38 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-24 15:46:17,368 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-09-24 15:46:17,411 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 265. [2020-09-24 15:46:17,411 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 265 states. [2020-09-24 15:46:17,413 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 265 states to 265 states and 288 transitions. [2020-09-24 15:46:17,413 INFO L78 Accepts]: Start accepts. Automaton has 265 states and 288 transitions. Word has length 166 [2020-09-24 15:46:17,414 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-24 15:46:17,414 INFO L479 AbstractCegarLoop]: Abstraction has 265 states and 288 transitions. [2020-09-24 15:46:17,414 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-24 15:46:17,414 INFO L276 IsEmpty]: Start isEmpty. Operand 265 states and 288 transitions. [2020-09-24 15:46:17,416 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-09-24 15:46:17,416 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 15:46:17,417 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] [2020-09-24 15:46:17,417 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-24 15:46:17,417 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 15:46:17,417 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 15:46:17,418 INFO L82 PathProgramCache]: Analyzing trace with hash 1613053112, now seen corresponding path program 1 times [2020-09-24 15:46:17,418 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 15:46:17,418 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1714870648] [2020-09-24 15:46:17,418 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 15:46:17,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-24 15:46:17,510 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-24 15:46:17,510 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-24 15:46:17,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-24 15:46:17,540 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 24.09 03:46:17 BoogieIcfgContainer [2020-09-24 15:46:17,540 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-24 15:46:17,542 INFO L168 Benchmark]: Toolchain (without parser) took 13824.69 ms. Allocated memory was 147.8 MB in the beginning and 445.6 MB in the end (delta: 297.8 MB). Free memory was 103.0 MB in the beginning and 255.1 MB in the end (delta: -152.1 MB). Peak memory consumption was 145.7 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:17,543 INFO L168 Benchmark]: CDTParser took 0.34 ms. Allocated memory is still 147.8 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-24 15:46:17,544 INFO L168 Benchmark]: CACSL2BoogieTranslator took 707.47 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.4 MB in the beginning and 173.7 MB in the end (delta: -71.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:17,545 INFO L168 Benchmark]: Boogie Preprocessor took 104.39 ms. Allocated memory is still 204.5 MB. Free memory was 173.7 MB in the beginning and 169.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:17,546 INFO L168 Benchmark]: RCFGBuilder took 1174.79 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 169.7 MB in the beginning and 181.7 MB in the end (delta: -12.0 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:17,547 INFO L168 Benchmark]: TraceAbstraction took 11829.12 ms. Allocated memory was 236.5 MB in the beginning and 445.6 MB in the end (delta: 209.2 MB). Free memory was 181.7 MB in the beginning and 255.1 MB in the end (delta: -73.4 MB). Peak memory consumption was 135.8 MB. Max. memory is 7.1 GB. [2020-09-24 15:46:17,551 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.34 ms. Allocated memory is still 147.8 MB. Free memory was 122.3 MB in the beginning and 122.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 707.47 ms. Allocated memory was 147.8 MB in the beginning and 204.5 MB in the end (delta: 56.6 MB). Free memory was 102.4 MB in the beginning and 173.7 MB in the end (delta: -71.4 MB). Peak memory consumption was 22.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 104.39 ms. Allocated memory is still 204.5 MB. Free memory was 173.7 MB in the beginning and 169.7 MB in the end (delta: 4.0 MB). Peak memory consumption was 4.0 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1174.79 ms. Allocated memory was 204.5 MB in the beginning and 236.5 MB in the end (delta: 32.0 MB). Free memory was 169.7 MB in the beginning and 181.7 MB in the end (delta: -12.0 MB). Peak memory consumption was 83.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11829.12 ms. Allocated memory was 236.5 MB in the beginning and 445.6 MB in the end (delta: 209.2 MB). Free memory was 181.7 MB in the beginning and 255.1 MB in the end (delta: -73.4 MB). Peak memory consumption was 135.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 302]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int pumpRunning = 0; [L49] int systemActive = 1; [L307] int cleanupTimeShifts = 4; [L403] int waterLevel = 1; [L404] int methaneLevelCritical = 0; [L652] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L380] int retValue_acc ; [L381] int tmp ; [L385] FCALL select_helpers() [L386] FCALL select_features() [L387] CALL, EXPR valid_product() [L253] int retValue_acc ; [L256] retValue_acc = 1 [L257] return (retValue_acc); [L387] RET, EXPR valid_product() [L387] tmp = valid_product() [L389] COND TRUE \read(tmp) [L391] FCALL setup() [L392] CALL runTest() [L374] CALL test() [L160] int splverifierCounter ; [L161] int tmp ; [L162] int tmp___0 ; [L163] int tmp___1 ; [L164] int tmp___2 ; [L167] splverifierCounter = 0 [L169] COND TRUE 1 [L171] COND TRUE splverifierCounter < 4 [L177] tmp = __VERIFIER_nondet_int() [L179] COND TRUE \read(tmp) [L181] CALL waterRise() [L421] COND TRUE waterLevel < 2 [L422] waterLevel = waterLevel + 1 [L181] RET waterRise() [L187] tmp___0 = __VERIFIER_nondet_int() [L189] COND FALSE !(\read(tmp___0)) [L197] tmp___2 = __VERIFIER_nondet_int() [L199] COND TRUE \read(tmp___2) [L212] CALL timeShift() [L56] COND FALSE !(\read(pumpRunning)) [L63] COND TRUE \read(systemActive) [L65] FCALL processEnvironment() [L71] CALL __utac_acc__Specification3_spec__1() [L265] int tmp ; [L266] int tmp___0 ; [L267] int tmp___1 ; [L271] CALL, EXPR isMethaneLevelCritical() [L442] int retValue_acc ; [L445] retValue_acc = methaneLevelCritical [L446] return (retValue_acc); [L271] RET, EXPR isMethaneLevelCritical() [L271] tmp = isMethaneLevelCritical() [L273] COND FALSE !(\read(tmp)) [L277] CALL, EXPR getWaterLevel() [L474] int retValue_acc ; [L477] retValue_acc = waterLevel [L478] return (retValue_acc); [L277] RET, EXPR getWaterLevel() [L277] tmp___0 = getWaterLevel() [L279] COND TRUE tmp___0 == 2 [L281] CALL, EXPR isPumpRunning() [L111] int retValue_acc ; [L114] retValue_acc = pumpRunning [L115] return (retValue_acc); [L281] RET, EXPR isPumpRunning() [L281] tmp___1 = isPumpRunning() [L283] COND FALSE !(\read(tmp___1)) [L287] CALL __automaton_fail() [L302] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 34 procedures, 578 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.7s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 739 SDtfs, 586 SDslu, 682 SDs, 0 SdLazy, 1282 SolverSat, 183 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 97 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 4.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=265occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 125 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.3s InterpolantComputationTime, 807 NumberOfCodeBlocks, 807 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 632 ConstructedInterpolants, 0 QuantifiedInterpolants, 248998 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...