/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 --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_product13.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-eb0fd7c [2020-09-21 11:09:39,542 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-21 11:09:39,547 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-21 11:09:39,593 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-21 11:09:39,595 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-21 11:09:39,603 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-21 11:09:39,606 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-21 11:09:39,609 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-21 11:09:39,612 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-21 11:09:39,617 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-21 11:09:39,618 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-21 11:09:39,619 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-21 11:09:39,619 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-21 11:09:39,622 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-21 11:09:39,624 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-21 11:09:39,626 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-21 11:09:39,628 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-21 11:09:39,629 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-21 11:09:39,631 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-21 11:09:39,639 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-21 11:09:39,642 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-21 11:09:39,643 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-21 11:09:39,644 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-21 11:09:39,645 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-21 11:09:39,658 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-21 11:09:39,658 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-21 11:09:39,659 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-21 11:09:39,666 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-21 11:09:39,667 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-21 11:09:39,671 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-21 11:09:39,671 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-21 11:09:39,672 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-21 11:09:39,673 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-21 11:09:39,674 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-21 11:09:39,675 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-21 11:09:39,675 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-21 11:09:39,676 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-21 11:09:39,676 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-21 11:09:39,677 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-21 11:09:39,678 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-21 11:09:39,678 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-21 11:09:39,680 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 [2020-09-21 11:09:39,726 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-21 11:09:39,726 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-21 11:09:39,728 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-21 11:09:39,729 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-21 11:09:39,729 INFO L138 SettingsManager]: * Use SBE=true [2020-09-21 11:09:39,729 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-21 11:09:39,729 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-21 11:09:39,730 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-21 11:09:39,730 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-21 11:09:39,730 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-21 11:09:39,731 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-21 11:09:39,731 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-21 11:09:39,732 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-21 11:09:39,732 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-21 11:09:39,732 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-21 11:09:39,732 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-21 11:09:39,733 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-21 11:09:39,733 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-21 11:09:39,733 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-21 11:09:39,733 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-21 11:09:39,733 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-21 11:09:39,734 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-21 11:09:39,734 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-21 11:09:39,734 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-21 11:09:39,734 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-21 11:09:39,734 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-21 11:09:39,735 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-21 11:09:39,735 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-21 11:09:39,735 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-21 11:09:39,735 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.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; [2020-09-21 11:09:40,219 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-21 11:09:40,240 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-21 11:09:40,246 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-21 11:09:40,248 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-21 11:09:40,248 INFO L275 PluginConnector]: CDTParser initialized [2020-09-21 11:09:40,250 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-09-21 11:09:40,333 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e250cad72/153ea491e13246769b8560f666a95d82/FLAG76c19ba82 [2020-09-21 11:09:40,973 INFO L306 CDTParser]: Found 1 translation units. [2020-09-21 11:09:40,975 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product13.cil.c [2020-09-21 11:09:40,988 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e250cad72/153ea491e13246769b8560f666a95d82/FLAG76c19ba82 [2020-09-21 11:09:41,218 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/e250cad72/153ea491e13246769b8560f666a95d82 [2020-09-21 11:09:41,232 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-21 11:09:41,237 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-21 11:09:41,238 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:41,238 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-21 11:09:41,242 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-21 11:09:41,243 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:41,247 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ac45341 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41, skipping insertion in model container [2020-09-21 11:09:41,247 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:41,254 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-21 11:09:41,309 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-21 11:09:41,748 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:41,763 INFO L203 MainTranslator]: Completed pre-run [2020-09-21 11:09:41,904 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-21 11:09:41,948 INFO L208 MainTranslator]: Completed translation [2020-09-21 11:09:41,949 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41 WrapperNode [2020-09-21 11:09:41,949 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-21 11:09:41,950 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-21 11:09:41,950 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-21 11:09:41,951 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-21 11:09:41,967 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:41,967 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:41,988 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:41,989 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:42,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:42,037 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:42,043 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (1/1) ... [2020-09-21 11:09:42,051 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-21 11:09:42,052 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-21 11:09:42,052 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-21 11:09:42,053 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-21 11:09:42,054 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (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 [2020-09-21 11:09:42,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-21 11:09:42,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-21 11:09:42,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:42,132 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-21 11:09:42,132 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-21 11:09:42,140 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-21 11:09:42,140 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-21 11:09:42,140 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-21 11:09:42,140 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-21 11:09:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-21 11:09:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-21 11:09:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-21 11:09:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-21 11:09:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-21 11:09:42,141 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-21 11:09:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-21 11:09:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-21 11:09:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-21 11:09:42,142 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-21 11:09:42,143 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-21 11:09:42,143 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:09:42,143 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-21 11:09:42,143 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-21 11:09:42,143 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-21 11:09:42,144 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-21 11:09:42,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-21 11:09:42,144 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-21 11:09:42,144 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-21 11:09:42,144 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:42,144 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-21 11:09:42,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:42,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:42,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:42,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-21 11:09:42,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-21 11:09:42,145 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-21 11:09:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-21 11:09:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-21 11:09:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-21 11:09:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-21 11:09:42,146 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-21 11:09:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-21 11:09:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-21 11:09:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-21 11:09:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-21 11:09:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-21 11:09:42,147 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-21 11:09:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-21 11:09:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-21 11:09:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-21 11:09:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-21 11:09:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-21 11:09:42,148 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-21 11:09:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-21 11:09:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-21 11:09:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-21 11:09:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-21 11:09:42,149 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-21 11:09:42,150 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-21 11:09:42,150 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-21 11:09:42,150 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-21 11:09:42,150 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-21 11:09:42,150 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-21 11:09:42,150 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-21 11:09:42,151 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-21 11:09:42,151 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-21 11:09:42,151 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-21 11:09:42,151 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-21 11:09:42,151 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-21 11:09:42,151 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-21 11:09:42,151 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-21 11:09:42,151 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-21 11:09:42,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-21 11:09:42,152 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-21 11:09:42,152 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-21 11:09:42,152 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-21 11:09:42,152 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-21 11:09:42,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-21 11:09:42,153 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-21 11:09:42,153 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-21 11:09:42,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-21 11:09:42,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-21 11:09:42,153 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-21 11:09:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-21 11:09:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-21 11:09:42,154 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-21 11:09:43,289 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-21 11:09:43,290 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-21 11:09:43,297 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:43 BoogieIcfgContainer [2020-09-21 11:09:43,297 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-21 11:09:43,298 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-21 11:09:43,298 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-21 11:09:43,302 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-21 11:09:43,302 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.09 11:09:41" (1/3) ... [2020-09-21 11:09:43,303 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ad4187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:43, skipping insertion in model container [2020-09-21 11:09:43,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.09 11:09:41" (2/3) ... [2020-09-21 11:09:43,304 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@74ad4187 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.09 11:09:43, skipping insertion in model container [2020-09-21 11:09:43,304 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.09 11:09:43" (3/3) ... [2020-09-21 11:09:43,307 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product13.cil.c [2020-09-21 11:09:43,318 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-21 11:09:43,332 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-21 11:09:43,353 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-21 11:09:43,380 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-21 11:09:43,380 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-21 11:09:43,380 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-21 11:09:43,380 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-21 11:09:43,380 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-21 11:09:43,381 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-21 11:09:43,381 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-21 11:09:43,381 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-21 11:09:43,409 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states. [2020-09-21 11:09:43,420 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-09-21 11:09:43,421 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:43,422 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] [2020-09-21 11:09:43,423 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:43,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:43,430 INFO L82 PathProgramCache]: Analyzing trace with hash 269315160, now seen corresponding path program 1 times [2020-09-21 11:09:43,439 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:43,439 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [978461294] [2020-09-21 11:09:43,440 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:43,715 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:43,733 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:43,734 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:43,734 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:43,734 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:43,735 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-21 11:09:43,735 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:43,735 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 13 [2020-09-21 11:09:43,735 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:43,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:43,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 43 [2020-09-21 11:09:43,736 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:43,737 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,190 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:44,192 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:44,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,206 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,206 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,206 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,207 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,207 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:44,207 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,207 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:44,208 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:44,208 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,208 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:44,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:44,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,268 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,269 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,269 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,269 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,270 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:44,270 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,270 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:44,270 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:44,271 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,272 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:44,274 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,275 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,275 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,276 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,276 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,276 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:44,277 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,277 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:44,277 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:44,278 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,278 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:44,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,282 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,283 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,283 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,283 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:44,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:44,284 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:44,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:44,289 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,290 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,290 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,291 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,291 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,291 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:44,292 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,292 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:44,292 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,292 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:44,293 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,293 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,295 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 32 [2020-09-21 11:09:44,296 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,297 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,298 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,298 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,298 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,299 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:44,299 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,299 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:44,300 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,300 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:44,301 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,301 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 38 [2020-09-21 11:09:44,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,306 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,306 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,306 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,310 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,310 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:44,310 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,311 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-21 11:09:44,311 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,311 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:44,312 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,312 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,316 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 44 [2020-09-21 11:09:44,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:44,319 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:44,320 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:44,320 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:44,320 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:44,321 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:44,321 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:44,321 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:44,322 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:44,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:44,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:44,323 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:44,323 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:44,346 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:44,347 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [978461294] [2020-09-21 11:09:44,349 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:44,350 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-21 11:09:44,351 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2130333592] [2020-09-21 11:09:44,359 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-21 11:09:44,360 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:44,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-21 11:09:44,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-21 11:09:44,381 INFO L87 Difference]: Start difference. First operand 156 states. Second operand 3 states. [2020-09-21 11:09:45,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:45,518 INFO L93 Difference]: Finished difference Result 249 states and 331 transitions. [2020-09-21 11:09:45,519 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-21 11:09:45,521 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-09-21 11:09:45,521 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:45,539 INFO L225 Difference]: With dead ends: 249 [2020-09-21 11:09:45,540 INFO L226 Difference]: Without dead ends: 135 [2020-09-21 11:09:45,545 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 [2020-09-21 11:09:45,569 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2020-09-21 11:09:45,650 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 105. [2020-09-21 11:09:45,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 105 states. [2020-09-21 11:09:45,661 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 105 states to 105 states and 123 transitions. [2020-09-21 11:09:45,664 INFO L78 Accepts]: Start accepts. Automaton has 105 states and 123 transitions. Word has length 52 [2020-09-21 11:09:45,665 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:45,666 INFO L479 AbstractCegarLoop]: Abstraction has 105 states and 123 transitions. [2020-09-21 11:09:45,671 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-21 11:09:45,671 INFO L276 IsEmpty]: Start isEmpty. Operand 105 states and 123 transitions. [2020-09-21 11:09:45,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-09-21 11:09:45,677 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:45,678 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] [2020-09-21 11:09:45,678 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-21 11:09:45,678 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:45,679 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:45,679 INFO L82 PathProgramCache]: Analyzing trace with hash -1813296693, now seen corresponding path program 1 times [2020-09-21 11:09:45,679 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:45,679 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2002261391] [2020-09-21 11:09:45,680 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:45,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:45,800 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:45,800 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:45,800 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:45,801 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:45,801 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 86 [2020-09-21 11:09:45,801 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:45,801 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-21 11:09:45,801 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:45,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:45,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 42 [2020-09-21 11:09:45,802 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-21 11:09:45,802 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,125 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:46,127 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:46,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,171 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,171 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,171 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,172 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,172 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:46,172 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,172 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:46,173 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:46,173 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,174 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,215 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,215 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,215 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,215 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,216 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:46,216 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,216 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:46,216 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:46,217 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,217 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:46,219 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:46,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,220 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,221 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,221 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,221 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,221 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:46,222 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,222 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:46,222 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,222 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:46,223 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,223 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,224 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,226 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,226 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,226 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,227 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,227 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:46,227 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,227 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:46,228 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:46,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,232 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,232 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,232 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,232 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,233 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:46,233 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,233 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:46,233 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:46,234 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,234 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,235 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 33 [2020-09-21 11:09:46,236 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,237 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,237 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,238 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,238 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:46,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,239 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:46,239 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:46,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 39 [2020-09-21 11:09:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,243 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,243 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,244 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,244 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,244 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:46,244 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:46,245 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,245 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:46,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,246 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,248 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:09:46,248 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:46,249 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:46,250 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:46,250 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:46,250 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:46,251 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:46,251 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:46,251 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:46,251 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:46,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:46,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:46,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:46,252 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:46,260 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:46,261 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2002261391] [2020-09-21 11:09:46,261 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:46,261 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:46,261 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1250843424] [2020-09-21 11:09:46,263 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:46,264 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:46,264 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:46,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:46,265 INFO L87 Difference]: Start difference. First operand 105 states and 123 transitions. Second operand 4 states. [2020-09-21 11:09:46,690 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-21 11:09:47,343 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:47,344 INFO L93 Difference]: Finished difference Result 182 states and 222 transitions. [2020-09-21 11:09:47,344 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:47,345 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-09-21 11:09:47,345 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:47,347 INFO L225 Difference]: With dead ends: 182 [2020-09-21 11:09:47,348 INFO L226 Difference]: Without dead ends: 119 [2020-09-21 11:09:47,349 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-21 11:09:47,350 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-21 11:09:47,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-09-21 11:09:47,381 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-21 11:09:47,382 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 111 transitions. [2020-09-21 11:09:47,382 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 111 transitions. Word has length 53 [2020-09-21 11:09:47,383 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:47,383 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 111 transitions. [2020-09-21 11:09:47,383 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:47,383 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 111 transitions. [2020-09-21 11:09:47,385 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2020-09-21 11:09:47,385 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:47,386 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] [2020-09-21 11:09:47,386 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-21 11:09:47,386 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:47,386 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:47,386 INFO L82 PathProgramCache]: Analyzing trace with hash -2099874592, now seen corresponding path program 1 times [2020-09-21 11:09:47,387 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:47,387 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1519504598] [2020-09-21 11:09:47,387 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:47,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:47,504 FATAL L256 erpolLogProxyWrapper]: Difference in size: 4 [2020-09-21 11:09:47,505 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:47,505 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:47,505 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:47,505 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 88 [2020-09-21 11:09:47,506 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:47,506 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 67 [2020-09-21 11:09:47,506 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:47,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:47,506 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:47,507 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 50 [2020-09-21 11:09:47,507 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:47,845 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:47,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:47,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:47,914 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:47,914 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:47,914 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:47,915 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:47,915 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:47,915 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:47,915 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 41 [2020-09-21 11:09:47,916 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:47,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:47,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:47,916 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:47,916 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:47,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:47,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:47,954 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:47,954 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:47,954 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:47,954 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:47,955 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:47,955 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:47,955 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:47,955 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:47,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:47,955 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:47,956 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:47,956 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:47,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:47,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:47,959 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:47,960 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:47,960 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:47,960 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:47,960 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:47,961 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:47,961 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:47,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:47,961 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:47,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:47,962 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:47,963 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:47,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:47,966 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:47,966 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:47,966 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:47,966 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:47,967 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:47,967 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:47,967 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:47,967 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:47,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:47,967 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:47,968 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:47,968 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:47,970 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:47,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:47,972 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:47,972 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:47,973 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:47,973 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:47,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:47,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:47,974 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:47,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:47,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:47,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:47,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 37 [2020-09-21 11:09:47,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:47,978 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:47,978 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:47,978 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:47,979 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:47,979 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:47,979 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:47,979 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:47,979 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:47,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:47,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:47,980 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:47,980 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:47,982 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 43 [2020-09-21 11:09:47,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:47,983 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:47,984 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:47,984 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:47,984 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:47,984 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:47,984 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:47,985 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:47,985 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:47,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:47,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:47,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:47,986 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:47,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 49 [2020-09-21 11:09:47,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:47,989 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:47,989 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:47,989 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:47,990 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:47,990 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:47,990 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:47,990 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:47,990 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:47,990 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:47,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:47,991 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:47,991 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:47,999 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:47,999 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1519504598] [2020-09-21 11:09:48,000 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:48,000 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-21 11:09:48,000 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1115279903] [2020-09-21 11:09:48,001 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-21 11:09:48,001 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:48,001 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-21 11:09:48,001 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-21 11:09:48,002 INFO L87 Difference]: Start difference. First operand 96 states and 111 transitions. Second operand 4 states. [2020-09-21 11:09:48,374 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:49,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:49,037 INFO L93 Difference]: Finished difference Result 191 states and 236 transitions. [2020-09-21 11:09:49,038 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-21 11:09:49,038 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 57 [2020-09-21 11:09:49,039 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:49,041 INFO L225 Difference]: With dead ends: 191 [2020-09-21 11:09:49,041 INFO L226 Difference]: Without dead ends: 119 [2020-09-21 11:09:49,042 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 [2020-09-21 11:09:49,044 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2020-09-21 11:09:49,076 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 96. [2020-09-21 11:09:49,076 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 96 states. [2020-09-21 11:09:49,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 96 states to 96 states and 110 transitions. [2020-09-21 11:09:49,077 INFO L78 Accepts]: Start accepts. Automaton has 96 states and 110 transitions. Word has length 57 [2020-09-21 11:09:49,077 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:49,077 INFO L479 AbstractCegarLoop]: Abstraction has 96 states and 110 transitions. [2020-09-21 11:09:49,077 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-21 11:09:49,078 INFO L276 IsEmpty]: Start isEmpty. Operand 96 states and 110 transitions. [2020-09-21 11:09:49,079 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-09-21 11:09:49,079 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:49,079 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] [2020-09-21 11:09:49,079 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-21 11:09:49,080 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:49,080 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:49,080 INFO L82 PathProgramCache]: Analyzing trace with hash 1251058736, now seen corresponding path program 1 times [2020-09-21 11:09:49,080 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:49,081 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1023047919] [2020-09-21 11:09:49,081 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:49,138 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:49,681 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:49,681 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:49,682 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:49,682 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:49,682 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 100 [2020-09-21 11:09:49,682 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:49,682 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 542 [2020-09-21 11:09:49,682 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 13 [2020-09-21 11:09:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:49,683 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 82 [2020-09-21 11:09:49,683 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,038 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-21 11:09:50,039 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-21 11:09:50,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,098 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,098 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,098 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,099 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,099 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:50,099 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,099 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 39 [2020-09-21 11:09:50,099 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,100 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-21 11:09:50,100 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 6 [2020-09-21 11:09:50,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,133 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,133 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,133 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,133 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,133 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:50,134 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,134 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,134 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,134 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,135 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:50,135 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,136 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 9 [2020-09-21 11:09:50,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,138 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,138 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,139 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,139 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,139 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:50,139 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,139 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,140 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,140 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:50,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,142 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 12 [2020-09-21 11:09:50,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,144 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,144 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,144 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,145 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,145 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:50,145 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,146 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,146 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,146 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,147 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:50,147 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-21 11:09:50,149 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2020-09-21 11:09:50,149 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,151 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,151 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,151 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,151 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:50,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,152 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-21 11:09:50,153 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2020-09-21 11:09:50,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,169 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,169 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,170 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,170 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,170 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-21 11:09:50,170 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,170 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,171 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-21 11:09:50,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-21 11:09:50,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,174 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,175 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,175 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,175 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,175 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-21 11:09:50,175 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,176 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,176 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,176 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:50,177 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 45 [2020-09-21 11:09:50,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,180 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,180 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,181 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,181 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,181 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:50,181 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,181 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,182 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-21 11:09:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,182 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:50,182 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2020-09-21 11:09:50,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,188 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,188 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,189 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,189 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,189 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:50,189 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,189 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-21 11:09:50,190 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 4 [2020-09-21 11:09:50,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-21 11:09:50,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 5 [2020-09-21 11:09:50,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2020-09-21 11:09:50,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-21 11:09:50,209 FATAL L256 erpolLogProxyWrapper]: Difference in size: 0 [2020-09-21 11:09:50,209 FATAL L256 erpolLogProxyWrapper]: Difference in depth: 0 [2020-09-21 11:09:50,210 FATAL L256 erpolLogProxyWrapper]: Difference in width: 0 [2020-09-21 11:09:50,210 FATAL L256 erpolLogProxyWrapper]: Timeout: Unlimited (no timeout set) [2020-09-21 11:09:50,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-21 11:09:50,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-21 11:09:50,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1 [2020-09-21 11:09:50,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: FIRST [2020-09-21 11:09:50,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-21 11:09:50,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 6 [2020-09-21 11:09:50,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-21 11:09:50,211 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-21 11:09:50,221 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-21 11:09:50,221 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1023047919] [2020-09-21 11:09:50,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-21 11:09:50,222 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-21 11:09:50,222 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1890871362] [2020-09-21 11:09:50,222 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-21 11:09:50,223 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-21 11:09:50,223 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-21 11:09:50,223 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-09-21 11:09:50,223 INFO L87 Difference]: Start difference. First operand 96 states and 110 transitions. Second operand 8 states. [2020-09-21 11:09:50,635 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:52,035 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:52,412 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:52,755 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-21 11:09:53,158 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-21 11:09:53,527 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-21 11:09:53,529 INFO L93 Difference]: Finished difference Result 284 states and 375 transitions. [2020-09-21 11:09:53,530 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-21 11:09:53,530 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 65 [2020-09-21 11:09:53,531 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-21 11:09:53,534 INFO L225 Difference]: With dead ends: 284 [2020-09-21 11:09:53,534 INFO L226 Difference]: Without dead ends: 212 [2020-09-21 11:09:53,535 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.7s TimeCoverageRelationStatistics Valid=54, Invalid=128, Unknown=0, NotChecked=0, Total=182 [2020-09-21 11:09:53,536 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 212 states. [2020-09-21 11:09:53,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 212 to 166. [2020-09-21 11:09:53,583 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-09-21 11:09:53,584 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 197 transitions. [2020-09-21 11:09:53,585 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 197 transitions. Word has length 65 [2020-09-21 11:09:53,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-21 11:09:53,585 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 197 transitions. [2020-09-21 11:09:53,585 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-21 11:09:53,586 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 197 transitions. [2020-09-21 11:09:53,587 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 70 [2020-09-21 11:09:53,587 INFO L414 BasicCegarLoop]: Found error trace [2020-09-21 11:09:53,588 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] [2020-09-21 11:09:53,588 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-21 11:09:53,588 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-21 11:09:53,588 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-21 11:09:53,588 INFO L82 PathProgramCache]: Analyzing trace with hash 1559260886, now seen corresponding path program 1 times [2020-09-21 11:09:53,589 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-21 11:09:53,589 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [721204659] [2020-09-21 11:09:53,589 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-21 11:09:53,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-21 11:09:53,697 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-21 11:09:53,697 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-21 11:09:53,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-21 11:09:53,740 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.09 11:09:53 BoogieIcfgContainer [2020-09-21 11:09:53,740 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-21 11:09:53,745 INFO L168 Benchmark]: Toolchain (without parser) took 12509.17 ms. Allocated memory was 138.9 MB in the beginning and 456.1 MB in the end (delta: 317.2 MB). Free memory was 100.8 MB in the beginning and 411.1 MB in the end (delta: -310.3 MB). Peak memory consumption was 277.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:53,750 INFO L168 Benchmark]: CDTParser took 0.86 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-21 11:09:53,752 INFO L168 Benchmark]: CACSL2BoogieTranslator took 712.08 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.1 MB in the beginning and 171.9 MB in the end (delta: -71.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:53,761 INFO L168 Benchmark]: Boogie Preprocessor took 101.71 ms. Allocated memory is still 202.9 MB. Free memory was 171.9 MB in the beginning and 167.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:53,763 INFO L168 Benchmark]: RCFGBuilder took 1244.75 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 167.1 MB in the beginning and 201.4 MB in the end (delta: -34.3 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:53,765 INFO L168 Benchmark]: TraceAbstraction took 10442.39 ms. Allocated memory was 234.9 MB in the beginning and 456.1 MB in the end (delta: 221.2 MB). Free memory was 201.4 MB in the beginning and 411.1 MB in the end (delta: -209.7 MB). Peak memory consumption was 281.7 MB. Max. memory is 7.1 GB. [2020-09-21 11:09:53,774 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.86 ms. Allocated memory is still 138.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 712.08 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 100.1 MB in the beginning and 171.9 MB in the end (delta: -71.7 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 101.71 ms. Allocated memory is still 202.9 MB. Free memory was 171.9 MB in the beginning and 167.8 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1244.75 ms. Allocated memory was 202.9 MB in the beginning and 234.9 MB in the end (delta: 32.0 MB). Free memory was 167.1 MB in the beginning and 201.4 MB in the end (delta: -34.3 MB). Peak memory consumption was 85.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 10442.39 ms. Allocated memory was 234.9 MB in the beginning and 456.1 MB in the end (delta: 221.2 MB). Free memory was 201.4 MB in the beginning and 411.1 MB in the end (delta: -209.7 MB). Peak memory consumption was 281.7 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 168]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L173] int cleanupTimeShifts = 4; [L275] int pumpRunning = 0; [L276] int systemActive = 1; [L694] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L249] int retValue_acc ; [L250] int tmp ; [L254] FCALL select_helpers() [L255] FCALL select_features() [L256] CALL, EXPR valid_product() [L155] int retValue_acc ; [L158] retValue_acc = 1 [L159] return (retValue_acc); [L256] RET, EXPR valid_product() [L256] tmp = valid_product() [L258] COND TRUE \read(tmp) [L260] FCALL setup() [L261] CALL runTest() [L243] CALL test() [L461] int splverifierCounter ; [L462] int tmp ; [L463] int tmp___0 ; [L464] int tmp___1 ; [L465] int tmp___2 ; [L468] splverifierCounter = 0 [L470] COND TRUE 1 [L472] COND TRUE splverifierCounter < 4 [L478] tmp = __VERIFIER_nondet_int() [L480] COND TRUE \read(tmp) [L482] CALL waterRise() [L64] COND TRUE waterLevel < 2 [L65] waterLevel = waterLevel + 1 [L482] RET waterRise() [L488] tmp___0 = __VERIFIER_nondet_int() [L490] COND FALSE !(\read(tmp___0)) [L498] tmp___2 = __VERIFIER_nondet_int() [L500] COND TRUE \read(tmp___2) [L513] CALL timeShift() [L283] COND FALSE !(\read(pumpRunning)) [L290] COND TRUE \read(systemActive) [L292] CALL processEnvironment() [L312] int tmp ; [L315] COND FALSE !(\read(pumpRunning)) [L330] FCALL processEnvironment__wrappee__methaneQuery() [L292] RET processEnvironment() [L298] CALL __utac_acc__Specification3_spec__1() [L427] int tmp ; [L428] int tmp___0 ; [L429] int tmp___1 ; [L433] CALL, EXPR isMethaneLevelCritical() [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] return (retValue_acc); [L433] RET, EXPR isMethaneLevelCritical() [L433] tmp = isMethaneLevelCritical() [L435] COND FALSE !(\read(tmp)) [L439] CALL, EXPR getWaterLevel() [L117] int retValue_acc ; [L120] retValue_acc = waterLevel [L121] return (retValue_acc); [L439] RET, EXPR getWaterLevel() [L439] tmp___0 = getWaterLevel() [L441] COND TRUE tmp___0 == 2 [L443] CALL, EXPR isPumpRunning() [L381] int retValue_acc ; [L384] retValue_acc = pumpRunning [L385] return (retValue_acc); [L443] RET, EXPR isPumpRunning() [L443] tmp___1 = isPumpRunning() [L445] COND FALSE !(\read(tmp___1)) [L449] CALL __automaton_fail() [L168] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 214 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 10.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 6.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 370 SDtfs, 446 SDslu, 173 SDs, 0 SdLazy, 889 SolverSat, 260 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 3.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 93 GetRequests, 74 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 3.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=166occurred 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, 122 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 2.7s InterpolantComputationTime, 296 NumberOfCodeBlocks, 296 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 223 ConstructedInterpolants, 0 QuantifiedInterpolants, 60850 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...