/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.5 --traceabstraction.additional.smt.options log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 14:18:12,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 14:18:12,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 14:18:12,550 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 14:18:12,550 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 14:18:12,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 14:18:12,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 14:18:12,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 14:18:12,556 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 14:18:12,557 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 14:18:12,558 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 14:18:12,559 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 14:18:12,560 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 14:18:12,561 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 14:18:12,562 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 14:18:12,563 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 14:18:12,564 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 14:18:12,565 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 14:18:12,567 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 14:18:12,569 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 14:18:12,571 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 14:18:12,572 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 14:18:12,574 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 14:18:12,576 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 14:18:12,579 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 14:18:12,579 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 14:18:12,580 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 14:18:12,581 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 14:18:12,581 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 14:18:12,582 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 14:18:12,582 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 14:18:12,583 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 14:18:12,584 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 14:18:12,585 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 14:18:12,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 14:18:12,586 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 14:18:12,587 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 14:18:12,587 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 14:18:12,587 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 14:18:12,588 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 14:18:12,589 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 14:18:12,590 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-09-25 14:18:12,614 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 14:18:12,614 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 14:18:12,616 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 14:18:12,616 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 14:18:12,616 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 14:18:12,616 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 14:18:12,616 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 14:18:12,617 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 14:18:12,617 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 14:18:12,617 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 14:18:12,617 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 14:18:12,617 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 14:18:12,618 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 14:18:12,618 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 14:18:12,618 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 14:18:12,618 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 14:18:12,618 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 14:18:12,619 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 14:18:12,619 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 14:18:12,619 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 14:18:12,619 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 14:18:12,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:18:12,620 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 14:18:12,620 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 14:18:12,620 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 14:18:12,620 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 14:18:12,620 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 14:18:12,621 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 14:18:12,621 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 14:18:12,621 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.5;log-additional-information=true; [2020-09-25 14:18:13,162 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 14:18:13,187 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 14:18:13,193 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 14:18:13,195 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 14:18:13,197 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 14:18:13,198 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-25 14:18:13,272 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cba1877a2/13adaee71f1d4dd88e8980a310bfb1db/FLAG724749ab0 [2020-09-25 14:18:13,849 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 14:18:13,850 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product07.cil.c [2020-09-25 14:18:13,872 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cba1877a2/13adaee71f1d4dd88e8980a310bfb1db/FLAG724749ab0 [2020-09-25 14:18:14,117 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/cba1877a2/13adaee71f1d4dd88e8980a310bfb1db [2020-09-25 14:18:14,131 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 14:18:14,138 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 14:18:14,140 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 14:18:14,140 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 14:18:14,145 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 14:18:14,146 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:14" (1/1) ... [2020-09-25 14:18:14,151 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@11cafb76 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:14, skipping insertion in model container [2020-09-25 14:18:14,152 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 02:18:14" (1/1) ... [2020-09-25 14:18:14,162 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 14:18:14,241 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 14:18:14,678 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:18:14,798 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 14:18:14,901 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 14:18:14,950 INFO L208 MainTranslator]: Completed translation [2020-09-25 14:18:14,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:14 WrapperNode [2020-09-25 14:18:14,952 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 14:18:14,953 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 14:18:14,953 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 14:18:14,953 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 14:18:14,968 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:14" (1/1) ... [2020-09-25 14:18:14,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:14" (1/1) ... [2020-09-25 14:18:14,990 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:14" (1/1) ... [2020-09-25 14:18:14,991 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:14" (1/1) ... [2020-09-25 14:18:15,025 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:14" (1/1) ... [2020-09-25 14:18:15,036 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:14" (1/1) ... [2020-09-25 14:18:15,041 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:14" (1/1) ... [2020-09-25 14:18:15,050 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 14:18:15,050 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 14:18:15,050 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 14:18:15,051 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 14:18:15,052 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:14" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 14:18:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 14:18:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 14:18:15,131 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 14:18:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 14:18:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 14:18:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 14:18:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 14:18:15,132 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 14:18:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 14:18:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 14:18:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 14:18:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 14:18:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 14:18:15,133 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 14:18:15,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 14:18:15,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 14:18:15,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 14:18:15,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 14:18:15,134 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 14:18:15,135 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:18:15,136 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 14:18:15,136 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 14:18:15,136 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 14:18:15,136 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 14:18:15,136 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 14:18:15,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 14:18:15,137 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 14:18:15,137 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 14:18:15,137 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 14:18:15,137 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 14:18:15,137 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 14:18:15,138 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 14:18:15,138 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 14:18:15,138 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 14:18:15,138 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 14:18:15,138 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 14:18:15,138 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 14:18:15,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 14:18:15,142 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 14:18:15,143 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 14:18:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 14:18:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 14:18:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 14:18:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 14:18:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 14:18:15,144 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 14:18:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 14:18:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 14:18:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 14:18:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 14:18:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 14:18:15,145 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 14:18:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 14:18:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 14:18:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 14:18:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 14:18:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 14:18:15,146 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 14:18:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 14:18:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 14:18:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 14:18:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 14:18:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 14:18:15,147 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 14:18:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 14:18:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 14:18:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 14:18:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 14:18:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 14:18:15,148 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 14:18:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 14:18:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 14:18:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 14:18:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 14:18:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 14:18:15,149 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 14:18:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 14:18:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 14:18:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 14:18:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 14:18:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 14:18:15,150 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 14:18:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 14:18:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 14:18:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 14:18:15,151 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 14:18:16,305 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 14:18:16,306 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 14:18:16,313 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:16 BoogieIcfgContainer [2020-09-25 14:18:16,313 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 14:18:16,314 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 14:18:16,315 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 14:18:16,319 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 14:18:16,319 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 02:18:14" (1/3) ... [2020-09-25 14:18:16,320 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e72da37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:16, skipping insertion in model container [2020-09-25 14:18:16,320 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 02:18:14" (2/3) ... [2020-09-25 14:18:16,321 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@5e72da37 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 02:18:16, skipping insertion in model container [2020-09-25 14:18:16,321 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 02:18:16" (3/3) ... [2020-09-25 14:18:16,323 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product07.cil.c [2020-09-25 14:18:16,335 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 14:18:16,347 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 14:18:16,369 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 14:18:16,398 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 14:18:16,399 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 14:18:16,399 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 14:18:16,399 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 14:18:16,399 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 14:18:16,399 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 14:18:16,400 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 14:18:16,400 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 14:18:16,426 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-25 14:18:16,443 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 14:18:16,443 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:18:16,444 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:18:16,445 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:18:16,451 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:18:16,452 INFO L82 PathProgramCache]: Analyzing trace with hash 957582246, now seen corresponding path program 1 times [2020-09-25 14:18:16,464 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:18:16,464 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1558723731] [2020-09-25 14:18:16,465 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:18:16,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:17,001 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:17,171 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:18,862 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:21,849 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:21,849 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 14:18:21,850 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:18:21,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5031 [2020-09-25 14:18:21,859 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:21,860 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:21,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 14:18:21,860 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 14:18:21,861 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 60 [2020-09-25 14:18:21,861 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 14:18:22,403 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:18:22,405 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:18:22,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:22,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:22,759 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:22,760 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:18:22,760 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:22,760 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 311 [2020-09-25 14:18:22,761 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:22,761 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:22,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:22,761 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:22,762 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 14:18:22,762 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:22,838 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:18:22,839 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:22,841 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:22,844 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:22,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:22,845 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:22,845 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:22,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:22,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:22,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:22,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:22,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:22,846 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:22,848 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:18:22,849 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:22,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:22,854 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:22,854 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:22,854 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:22,855 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:22,855 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:22,855 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:22,855 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:22,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:22,856 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:22,856 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:22,858 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:18:22,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:22,861 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:22,867 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:22,868 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:22,868 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:22,868 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:18:22,868 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:22,869 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:22,869 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:22,870 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:22,872 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:18:22,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:22,875 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:22,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:22,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:22,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:22,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:22,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:22,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:22,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:22,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:22,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:22,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:22,882 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 14:18:22,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:22,885 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:22,887 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:22,887 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:22,887 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:22,888 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:22,888 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:22,888 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:22,888 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:22,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:22,889 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:22,889 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:22,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 14:18:22,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:22,894 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:22,896 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:22,896 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:22,896 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:22,897 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:22,897 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:22,897 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:22,897 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:22,898 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:22,898 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:22,900 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 14:18:22,901 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:22,903 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:22,905 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:22,905 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:22,906 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:22,906 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:22,906 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:22,907 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:22,907 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:22,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:22,942 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:18:22,943 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1558723731] [2020-09-25 14:18:22,945 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:18:22,946 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 14:18:22,947 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [88747298] [2020-09-25 14:18:22,954 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 14:18:22,955 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:18:22,974 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 14:18:22,975 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 14:18:22,977 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 4 states. [2020-09-25 14:18:23,613 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:18:25,479 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:18:25,479 INFO L93 Difference]: Finished difference Result 577 states and 709 transitions. [2020-09-25 14:18:25,480 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 14:18:25,481 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 153 [2020-09-25 14:18:25,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:18:25,503 INFO L225 Difference]: With dead ends: 577 [2020-09-25 14:18:25,503 INFO L226 Difference]: Without dead ends: 407 [2020-09-25 14:18:25,509 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 24 GetRequests, 20 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 14:18:25,531 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 407 states. [2020-09-25 14:18:25,673 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 407 to 344. [2020-09-25 14:18:25,675 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 344 states. [2020-09-25 14:18:25,681 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 344 states to 344 states and 385 transitions. [2020-09-25 14:18:25,683 INFO L78 Accepts]: Start accepts. Automaton has 344 states and 385 transitions. Word has length 153 [2020-09-25 14:18:25,686 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:18:25,686 INFO L479 AbstractCegarLoop]: Abstraction has 344 states and 385 transitions. [2020-09-25 14:18:25,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 14:18:25,687 INFO L276 IsEmpty]: Start isEmpty. Operand 344 states and 385 transitions. [2020-09-25 14:18:25,700 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-09-25 14:18:25,701 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:18:25,701 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:18:25,702 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 14:18:25,708 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:18:25,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:18:25,710 INFO L82 PathProgramCache]: Analyzing trace with hash -1303570128, now seen corresponding path program 1 times [2020-09-25 14:18:25,710 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:18:25,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2050600443] [2020-09-25 14:18:25,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:18:25,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:25,869 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:26,085 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:29,032 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:29,032 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 199 [2020-09-25 14:18:29,033 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 14:18:29,033 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3215 [2020-09-25 14:18:29,033 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:29,034 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:29,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 14:18:29,034 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 14:18:29,035 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 102 [2020-09-25 14:18:29,035 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:29,347 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:18:29,348 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:18:29,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:29,413 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:29,632 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:29,633 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:18:29,633 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:29,633 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 252 [2020-09-25 14:18:29,634 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:29,634 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:29,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:29,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:29,635 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 14:18:29,636 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:29,684 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:18:29,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:29,687 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:29,689 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:29,690 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:29,690 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:29,690 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:29,690 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:29,691 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:29,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:29,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:29,691 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:29,692 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:29,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:18:29,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:29,696 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:29,699 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:29,699 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:29,700 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:29,700 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:29,700 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:29,701 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:29,701 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:29,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:29,702 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:29,702 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:29,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:18:29,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:29,707 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:29,715 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:29,716 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:29,716 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:29,716 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 14:18:29,716 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:29,717 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:29,717 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:29,717 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:29,719 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:18:29,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:29,721 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:29,724 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:29,724 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:29,725 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:29,725 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:29,725 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:29,725 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:29,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:29,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:29,726 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:29,726 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:29,739 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 118 [2020-09-25 14:18:29,740 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:29,742 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:29,745 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:29,746 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:18:29,746 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:29,746 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:29,746 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:29,746 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:29,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:29,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:29,747 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 11 [2020-09-25 14:18:29,747 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:29,749 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:18:29,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:29,751 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:29,753 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:29,753 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:29,753 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:29,754 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:29,754 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:29,754 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:29,754 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:29,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:29,755 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:29,755 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:29,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-25 14:18:29,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:29,759 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:29,761 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:29,762 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:29,762 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:29,762 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:29,762 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:29,763 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:29,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:29,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:29,763 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:29,764 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:29,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 14:18:29,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:29,768 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:29,774 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:29,775 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:29,775 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:29,775 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 14:18:29,775 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:29,776 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:29,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 14:18:29,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:29,776 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:29,777 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:29,809 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 14:18:29,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:29,812 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:29,814 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:29,814 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:29,814 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:29,814 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:29,815 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:29,815 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:29,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:29,815 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:29,816 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:29,816 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:29,890 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:18:29,890 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2050600443] [2020-09-25 14:18:29,891 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:18:29,891 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-25 14:18:29,891 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1624478807] [2020-09-25 14:18:29,893 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-25 14:18:29,893 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:18:29,894 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-25 14:18:29,894 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-25 14:18:29,894 INFO L87 Difference]: Start difference. First operand 344 states and 385 transitions. Second operand 9 states. [2020-09-25 14:18:30,434 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:18:31,946 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 14:18:33,104 WARN L193 SmtUtils]: Spent 516.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 188 [2020-09-25 14:18:33,762 WARN L193 SmtUtils]: Spent 601.00 ms on a formula simplification. DAG size of input: 193 DAG size of output: 190 [2020-09-25 14:18:34,113 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:18:34,463 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:18:34,751 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 14:18:35,083 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 14:18:36,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:18:36,232 INFO L93 Difference]: Finished difference Result 988 states and 1256 transitions. [2020-09-25 14:18:36,232 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 14:18:36,233 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 162 [2020-09-25 14:18:36,234 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:18:36,243 INFO L225 Difference]: With dead ends: 988 [2020-09-25 14:18:36,243 INFO L226 Difference]: Without dead ends: 754 [2020-09-25 14:18:36,246 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-25 14:18:36,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 754 states. [2020-09-25 14:18:36,355 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 754 to 573. [2020-09-25 14:18:36,355 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 573 states. [2020-09-25 14:18:36,360 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 573 states to 573 states and 665 transitions. [2020-09-25 14:18:36,360 INFO L78 Accepts]: Start accepts. Automaton has 573 states and 665 transitions. Word has length 162 [2020-09-25 14:18:36,361 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:18:36,361 INFO L479 AbstractCegarLoop]: Abstraction has 573 states and 665 transitions. [2020-09-25 14:18:36,361 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-25 14:18:36,361 INFO L276 IsEmpty]: Start isEmpty. Operand 573 states and 665 transitions. [2020-09-25 14:18:36,365 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 14:18:36,365 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:18:36,366 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:18:36,366 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 14:18:36,366 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:18:36,366 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:18:36,367 INFO L82 PathProgramCache]: Analyzing trace with hash -1017183402, now seen corresponding path program 1 times [2020-09-25 14:18:36,367 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:18:36,367 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [396507742] [2020-09-25 14:18:36,367 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:18:36,416 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:36,473 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:36,566 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:36,692 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:41,460 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:41,461 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 206 [2020-09-25 14:18:41,461 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 14:18:41,461 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5041 [2020-09-25 14:18:41,462 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:41,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:41,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 12 [2020-09-25 14:18:41,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 14:18:41,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 61 [2020-09-25 14:18:41,462 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:18:41,767 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 14:18:41,768 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 14:18:41,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:41,851 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:42,078 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:42,079 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 14:18:42,079 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:42,079 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 263 [2020-09-25 14:18:42,079 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:42,080 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:42,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:42,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:42,080 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 14:18:42,080 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:42,124 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 14:18:42,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:42,126 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:42,129 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:42,129 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:42,130 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:42,130 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:42,130 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:42,130 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:42,130 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:42,132 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:42,132 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 14:18:42,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 14:18:42,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:42,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:42,138 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:42,138 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:42,138 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:42,138 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:42,138 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:42,139 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:42,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:42,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:42,139 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:42,140 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:42,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 14:18:42,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:42,145 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:42,151 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:42,152 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:42,152 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:42,152 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 14:18:42,152 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:42,153 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:42,153 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:42,154 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 14:18:42,154 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:42,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 14:18:42,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:42,161 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:42,164 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:42,165 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:42,165 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:42,165 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 14:18:42,165 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:42,165 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:42,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 14:18:42,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:42,166 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 14:18:42,166 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 14:18:42,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2020-09-25 14:18:42,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:42,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:42,187 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:42,187 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 14:18:42,188 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:42,188 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 14:18:42,188 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:42,189 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:42,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:42,189 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 7 [2020-09-25 14:18:42,190 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:42,190 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:42,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 123 [2020-09-25 14:18:42,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:42,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:42,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:42,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 15 [2020-09-25 14:18:42,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:42,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:42,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:42,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:42,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:42,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 12 [2020-09-25 14:18:42,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:42,212 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:42,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-25 14:18:42,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:42,216 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:42,218 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:42,218 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 14:18:42,218 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:42,219 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:42,219 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:42,219 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:42,219 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:42,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 14:18:42,220 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:42,220 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:42,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 14:18:42,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:42,224 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:42,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:42,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:42,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:42,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 14:18:42,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:42,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:42,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:42,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:42,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:42,229 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:42,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 14:18:42,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:42,233 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:42,235 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:42,235 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:42,236 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:42,236 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:42,236 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:42,237 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:42,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:42,237 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:42,238 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:42,238 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:42,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 14:18:42,241 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 14:18:42,242 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 14:18:42,244 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 14:18:42,245 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 14:18:42,245 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 14:18:42,245 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 14:18:42,246 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 14:18:42,246 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.5 [2020-09-25 14:18:42,246 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 14:18:42,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 14:18:42,247 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 14:18:42,247 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 14:18:42,303 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-25 14:18:42,304 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [396507742] [2020-09-25 14:18:42,304 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 14:18:42,305 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 14:18:42,305 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1007787898] [2020-09-25 14:18:42,306 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 14:18:42,307 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 14:18:42,307 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 14:18:42,307 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 14:18:42,308 INFO L87 Difference]: Start difference. First operand 573 states and 665 transitions. Second operand 6 states. [2020-09-25 14:18:42,970 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 14:18:43,732 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 14:18:43,733 INFO L93 Difference]: Finished difference Result 949 states and 1144 transitions. [2020-09-25 14:18:43,733 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-25 14:18:43,733 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 167 [2020-09-25 14:18:43,734 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 14:18:43,738 INFO L225 Difference]: With dead ends: 949 [2020-09-25 14:18:43,738 INFO L226 Difference]: Without dead ends: 465 [2020-09-25 14:18:43,742 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 27 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 14:18:43,743 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465 states. [2020-09-25 14:18:43,792 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465 to 435. [2020-09-25 14:18:43,792 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 435 states. [2020-09-25 14:18:43,795 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 435 states to 435 states and 472 transitions. [2020-09-25 14:18:43,795 INFO L78 Accepts]: Start accepts. Automaton has 435 states and 472 transitions. Word has length 167 [2020-09-25 14:18:43,796 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 14:18:43,796 INFO L479 AbstractCegarLoop]: Abstraction has 435 states and 472 transitions. [2020-09-25 14:18:43,796 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 14:18:43,796 INFO L276 IsEmpty]: Start isEmpty. Operand 435 states and 472 transitions. [2020-09-25 14:18:43,799 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 14:18:43,799 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 14:18:43,799 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 14:18:43,800 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 14:18:43,800 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 14:18:43,800 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 14:18:43,800 INFO L82 PathProgramCache]: Analyzing trace with hash -1861287888, now seen corresponding path program 1 times [2020-09-25 14:18:43,801 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 14:18:43,801 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1953662593] [2020-09-25 14:18:43,801 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 14:18:43,857 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 14:18:43,865 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 14:18:43,865 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 14:18:43,871 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 14:18:43,899 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 02:18:43 BoogieIcfgContainer [2020-09-25 14:18:43,899 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 14:18:43,902 INFO L168 Benchmark]: Toolchain (without parser) took 29768.73 ms. Allocated memory was 144.7 MB in the beginning and 571.5 MB in the end (delta: 426.8 MB). Free memory was 100.0 MB in the beginning and 125.2 MB in the end (delta: -25.3 MB). Peak memory consumption was 401.5 MB. Max. memory is 7.1 GB. [2020-09-25 14:18:43,903 INFO L168 Benchmark]: CDTParser took 0.27 ms. Allocated memory is still 144.7 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 14:18:43,904 INFO L168 Benchmark]: CACSL2BoogieTranslator took 812.41 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 99.3 MB in the beginning and 171.0 MB in the end (delta: -71.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. [2020-09-25 14:18:43,905 INFO L168 Benchmark]: Boogie Preprocessor took 97.38 ms. Allocated memory is still 201.3 MB. Free memory was 171.0 MB in the beginning and 167.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. [2020-09-25 14:18:43,906 INFO L168 Benchmark]: RCFGBuilder took 1263.08 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 167.5 MB in the beginning and 181.4 MB in the end (delta: -13.9 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. [2020-09-25 14:18:43,907 INFO L168 Benchmark]: TraceAbstraction took 27585.09 ms. Allocated memory was 231.2 MB in the beginning and 571.5 MB in the end (delta: 340.3 MB). Free memory was 179.9 MB in the beginning and 125.2 MB in the end (delta: 54.7 MB). Peak memory consumption was 395.0 MB. Max. memory is 7.1 GB. [2020-09-25 14:18:43,911 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.27 ms. Allocated memory is still 144.7 MB. Free memory was 119.3 MB in the beginning and 119.1 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 812.41 ms. Allocated memory was 144.7 MB in the beginning and 201.3 MB in the end (delta: 56.6 MB). Free memory was 99.3 MB in the beginning and 171.0 MB in the end (delta: -71.7 MB). Peak memory consumption was 25.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 97.38 ms. Allocated memory is still 201.3 MB. Free memory was 171.0 MB in the beginning and 167.5 MB in the end (delta: 3.5 MB). Peak memory consumption was 3.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1263.08 ms. Allocated memory was 201.3 MB in the beginning and 231.2 MB in the end (delta: 29.9 MB). Free memory was 167.5 MB in the beginning and 181.4 MB in the end (delta: -13.9 MB). Peak memory consumption was 89.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 27585.09 ms. Allocated memory was 231.2 MB in the beginning and 571.5 MB in the end (delta: 340.3 MB). Free memory was 179.9 MB in the beginning and 125.2 MB in the end (delta: 54.7 MB). Peak memory consumption was 395.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L87] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L596] int pumpRunning = 0; [L597] int systemActive = 1; [L811] int waterLevel = 1; [L812] int methaneLevelCritical = 0; [L165] int retValue_acc ; [L166] int tmp ; [L170] FCALL select_helpers() [L171] FCALL select_features() [L172] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L172] RET, EXPR valid_product() [L172] tmp = valid_product() [L174] COND TRUE \read(tmp) [L176] FCALL setup() [L177] CALL runTest() [L159] CALL test() [L745] int splverifierCounter ; [L746] int tmp ; [L747] int tmp___0 ; [L748] int tmp___1 ; [L749] int tmp___2 ; [L752] splverifierCounter = 0 [L754] COND TRUE 1 [L756] COND TRUE splverifierCounter < 4 [L762] tmp = __VERIFIER_nondet_int() [L764] COND TRUE \read(tmp) [L766] CALL waterRise() [L829] COND TRUE waterLevel < 2 [L830] waterLevel = waterLevel + 1 [L766] RET waterRise() [L772] tmp___0 = __VERIFIER_nondet_int() [L774] COND FALSE !(\read(tmp___0)) [L782] tmp___2 = __VERIFIER_nondet_int() [L784] COND TRUE \read(tmp___2) [L799] CALL timeShift() [L603] COND FALSE !(\read(pumpRunning)) [L610] COND TRUE \read(systemActive) [L612] CALL processEnvironment() [L632] int tmp ; [L635] COND FALSE !(\read(pumpRunning)) [L650] FCALL processEnvironment__wrappee__base() [L612] RET processEnvironment() [L618] CALL __utac_acc__Specification3_spec__1() [L558] int tmp ; [L559] int tmp___0 ; [L560] int tmp___1 ; [L564] CALL, EXPR isMethaneLevelCritical() [L850] int retValue_acc ; [L853] retValue_acc = methaneLevelCritical [L854] return (retValue_acc); [L564] RET, EXPR isMethaneLevelCritical() [L564] tmp = isMethaneLevelCritical() [L566] COND FALSE !(\read(tmp)) [L570] CALL, EXPR getWaterLevel() [L882] int retValue_acc ; [L885] retValue_acc = waterLevel [L886] return (retValue_acc); [L570] RET, EXPR getWaterLevel() [L570] tmp___0 = getWaterLevel() [L572] COND TRUE tmp___0 == 2 [L574] CALL, EXPR isPumpRunning() [L684] int retValue_acc ; [L687] retValue_acc = pumpRunning [L688] return (retValue_acc); [L574] RET, EXPR isPumpRunning() [L574] tmp___1 = isPumpRunning() [L576] COND FALSE !(\read(tmp___1)) [L580] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 596 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 27.4s, OverallIterations: 4, TraceHistogramMax: 1, AutomataDifference: 10.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 671 SDtfs, 1209 SDslu, 814 SDs, 0 SdLazy, 1716 SolverSat, 378 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.4s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 73 SyntacticMatches, 1 SemanticMatches, 29 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 43 ImplicationChecksByTransitivity, 4.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=573occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 3 MinimizatonAttempts, 274 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 15.9s InterpolantComputationTime, 658 NumberOfCodeBlocks, 658 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 479 ConstructedInterpolants, 0 QuantifiedInterpolants, 202507 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 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...