/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=WIDESTAMONGSMALL --traceabstraction.additional.smt.options tolerance=0.6 --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_product20.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 06:23:12,518 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 06:23:12,522 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 06:23:12,549 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 06:23:12,549 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 06:23:12,551 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 06:23:12,553 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 06:23:12,555 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 06:23:12,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 06:23:12,558 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 06:23:12,559 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 06:23:12,561 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 06:23:12,562 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 06:23:12,563 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 06:23:12,565 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 06:23:12,566 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 06:23:12,567 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 06:23:12,568 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 06:23:12,570 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 06:23:12,572 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 06:23:12,574 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 06:23:12,576 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 06:23:12,577 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 06:23:12,578 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 06:23:12,582 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 06:23:12,582 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 06:23:12,582 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 06:23:12,584 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 06:23:12,584 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 06:23:12,585 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 06:23:12,586 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 06:23:12,587 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 06:23:12,588 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 06:23:12,589 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 06:23:12,590 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 06:23:12,590 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 06:23:12,594 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 06:23:12,595 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 06:23:12,595 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 06:23:12,596 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 06:23:12,600 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 06:23:12,601 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 06:23:12,627 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 06:23:12,628 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 06:23:12,629 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 06:23:12,629 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 06:23:12,629 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 06:23:12,630 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 06:23:12,630 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 06:23:12,630 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 06:23:12,630 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 06:23:12,630 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 06:23:12,631 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 06:23:12,631 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 06:23:12,631 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 06:23:12,631 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 06:23:12,631 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 06:23:12,632 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 06:23:12,632 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 06:23:12,632 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 06:23:12,632 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 06:23:12,632 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 06:23:12,633 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 06:23:12,633 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 06:23:12,633 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 06:23:12,633 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 06:23:12,633 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 06:23:12,634 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 06:23:12,634 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 06:23:12,634 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 06:23:12,634 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 06:23:12,634 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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;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=WIDESTAMONGSMALL;tolerance=0.6;log-additional-information=true; [2020-09-25 06:23:13,118 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 06:23:13,145 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 06:23:13,153 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 06:23:13,157 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 06:23:13,158 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 06:23:13,159 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-25 06:23:13,243 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19927d65f/0ba762925f0a463baf3b45e8ac5a2553/FLAG8b32f1ad3 [2020-09-25 06:23:13,899 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 06:23:13,900 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product20.cil.c [2020-09-25 06:23:13,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19927d65f/0ba762925f0a463baf3b45e8ac5a2553/FLAG8b32f1ad3 [2020-09-25 06:23:14,168 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/19927d65f/0ba762925f0a463baf3b45e8ac5a2553 [2020-09-25 06:23:14,184 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 06:23:14,190 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 06:23:14,191 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 06:23:14,192 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 06:23:14,196 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 06:23:14,198 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:23:14" (1/1) ... [2020-09-25 06:23:14,202 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1392f113 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:14, skipping insertion in model container [2020-09-25 06:23:14,202 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 06:23:14" (1/1) ... [2020-09-25 06:23:14,212 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 06:23:14,290 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 06:23:14,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:23:14,773 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 06:23:14,939 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 06:23:14,982 INFO L208 MainTranslator]: Completed translation [2020-09-25 06:23:14,983 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:14 WrapperNode [2020-09-25 06:23:14,983 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 06:23:14,984 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 06:23:14,984 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 06:23:14,984 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 06:23:15,001 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:14" (1/1) ... [2020-09-25 06:23:15,001 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:14" (1/1) ... [2020-09-25 06:23:15,026 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:14" (1/1) ... [2020-09-25 06:23:15,026 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:14" (1/1) ... [2020-09-25 06:23:15,061 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:14" (1/1) ... [2020-09-25 06:23:15,073 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:14" (1/1) ... [2020-09-25 06:23:15,078 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:14" (1/1) ... [2020-09-25 06:23:15,086 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 06:23:15,087 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 06:23:15,087 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 06:23:15,087 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 06:23:15,089 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:14" (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 06:23:15,176 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 06:23:15,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 06:23:15,177 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 06:23:15,177 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 06:23:15,177 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 06:23:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 06:23:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 06:23:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 06:23:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 06:23:15,178 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 06:23:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 06:23:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 06:23:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 06:23:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 06:23:15,179 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 06:23:15,180 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 06:23:15,180 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 06:23:15,180 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 06:23:15,180 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:23:15,181 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 06:23:15,181 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-25 06:23:15,181 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 06:23:15,181 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 06:23:15,181 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 06:23:15,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 06:23:15,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 06:23:15,182 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 06:23:15,182 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-25 06:23:15,182 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 06:23:15,182 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 06:23:15,183 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 06:23:15,183 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 06:23:15,183 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 06:23:15,183 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 06:23:15,183 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 06:23:15,183 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 06:23:15,184 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 06:23:15,184 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-25 06:23:15,184 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 06:23:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 06:23:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 06:23:15,184 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 06:23:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 06:23:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 06:23:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 06:23:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 06:23:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 06:23:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 06:23:15,185 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 06:23:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 06:23:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 06:23:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 06:23:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 06:23:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 06:23:15,186 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 06:23:15,187 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 06:23:15,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 06:23:15,187 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 06:23:15,187 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 06:23:15,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 06:23:15,187 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 06:23:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 06:23:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 06:23:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 06:23:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 06:23:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 06:23:15,188 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 06:23:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 06:23:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 06:23:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 06:23:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 06:23:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 06:23:15,189 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 06:23:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 06:23:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 06:23:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 06:23:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 06:23:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 06:23:15,190 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 06:23:15,191 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 06:23:15,191 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-25 06:23:15,191 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 06:23:15,191 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 06:23:15,191 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 06:23:15,191 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 06:23:15,192 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 06:23:15,192 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-25 06:23:15,192 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-25 06:23:15,192 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 06:23:15,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 06:23:15,192 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 06:23:15,192 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 06:23:16,717 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 06:23:16,717 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 06:23:16,725 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:23:16 BoogieIcfgContainer [2020-09-25 06:23:16,725 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 06:23:16,727 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 06:23:16,727 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 06:23:16,731 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 06:23:16,731 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 06:23:14" (1/3) ... [2020-09-25 06:23:16,732 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45dd6d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:23:16, skipping insertion in model container [2020-09-25 06:23:16,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 06:23:14" (2/3) ... [2020-09-25 06:23:16,733 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@45dd6d73 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 06:23:16, skipping insertion in model container [2020-09-25 06:23:16,733 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 06:23:16" (3/3) ... [2020-09-25 06:23:16,736 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product20.cil.c [2020-09-25 06:23:16,748 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 06:23:16,760 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 06:23:16,782 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 06:23:16,814 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 06:23:16,815 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 06:23:16,815 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 06:23:16,815 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 06:23:16,815 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 06:23:16,815 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 06:23:16,815 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 06:23:16,816 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 06:23:16,842 INFO L276 IsEmpty]: Start isEmpty. Operand 302 states. [2020-09-25 06:23:16,861 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 06:23:16,861 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:16,863 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 06:23:16,863 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:16,870 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:16,870 INFO L82 PathProgramCache]: Analyzing trace with hash 554179223, now seen corresponding path program 1 times [2020-09-25 06:23:16,881 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:16,881 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930413616] [2020-09-25 06:23:16,882 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:17,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:17,378 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:17,604 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:19,183 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:22,245 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:22,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 06:23:22,246 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:23:22,246 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5024 [2020-09-25 06:23:22,250 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:22,251 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:22,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:22,251 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 06:23:22,252 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:22,253 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 06:23:22,712 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:22,718 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:22,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:22,748 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:22,879 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:22,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:22,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:22,880 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 139 [2020-09-25 06:23:22,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:22,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:22,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:22,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:22,881 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:22,881 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:22,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:22,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:22,959 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:22,962 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:22,962 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:22,962 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:22,962 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:22,963 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:22,963 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:22,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:22,963 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:22,964 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:22,964 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:22,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:22,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:22,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:22,973 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:22,973 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:22,973 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:22,973 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:22,974 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:22,974 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:22,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:22,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:22,974 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:22,975 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:22,977 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:22,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:22,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:22,987 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:22,988 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:22,988 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:22,988 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:23:22,988 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:22,989 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:22,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:22,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:22,989 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:22,990 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:22,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:22,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:22,994 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:22,996 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:22,997 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:22,997 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:22,997 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:22,997 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:22,997 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:22,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:22,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:22,998 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:22,998 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:22,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 06:23:23,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:23,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:23,004 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:23,004 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:23,005 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:23,005 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:23,005 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:23,005 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:23,005 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:23,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:23,006 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:23,006 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:23,008 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 06:23:23,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:23,013 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:23,016 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:23,016 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:23,016 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:23,016 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:23,017 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:23,017 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:23,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:23,017 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:23,018 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:23,018 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:23,020 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 06:23:23,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:23,026 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:23,029 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:23,029 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:23,029 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:23,029 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:23,030 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:23,030 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:23,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:23,030 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:23,031 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:23,031 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:23,064 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 06:23:23,065 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930413616] [2020-09-25 06:23:23,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:23,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 06:23:23,070 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591165382] [2020-09-25 06:23:23,081 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 06:23:23,081 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:23,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 06:23:23,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:23:23,104 INFO L87 Difference]: Start difference. First operand 302 states. Second operand 3 states. [2020-09-25 06:23:24,427 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:24,427 INFO L93 Difference]: Finished difference Result 458 states and 546 transitions. [2020-09-25 06:23:24,428 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 06:23:24,429 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 06:23:24,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:24,454 INFO L225 Difference]: With dead ends: 458 [2020-09-25 06:23:24,455 INFO L226 Difference]: Without dead ends: 287 [2020-09-25 06:23:24,462 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 06:23:24,482 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 287 states. [2020-09-25 06:23:24,558 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 287 to 245. [2020-09-25 06:23:24,560 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 245 states. [2020-09-25 06:23:24,562 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 245 states to 245 states and 265 transitions. [2020-09-25 06:23:24,564 INFO L78 Accepts]: Start accepts. Automaton has 245 states and 265 transitions. Word has length 153 [2020-09-25 06:23:24,565 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:24,565 INFO L479 AbstractCegarLoop]: Abstraction has 245 states and 265 transitions. [2020-09-25 06:23:24,566 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 06:23:24,566 INFO L276 IsEmpty]: Start isEmpty. Operand 245 states and 265 transitions. [2020-09-25 06:23:24,571 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 06:23:24,571 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:24,572 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:23:24,572 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 06:23:24,572 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:24,573 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:24,573 INFO L82 PathProgramCache]: Analyzing trace with hash -809983640, now seen corresponding path program 1 times [2020-09-25 06:23:24,573 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:24,574 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1260780813] [2020-09-25 06:23:24,574 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:24,629 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:24,685 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:24,837 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:26,511 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:29,670 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:29,670 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 06:23:29,671 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 06:23:29,671 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5038 [2020-09-25 06:23:29,671 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:29,671 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:29,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:29,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 06:23:29,672 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 06:23:29,672 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:29,953 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:29,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:29,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:29,979 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:30,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:30,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:30,089 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:30,089 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 120 [2020-09-25 06:23:30,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:30,090 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:30,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:30,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:30,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:30,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:30,131 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:30,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:30,135 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:30,142 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:30,142 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:30,142 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:30,143 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:23:30,143 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:30,143 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:30,143 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:30,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:30,144 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:30,144 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:30,145 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:30,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:30,147 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:30,149 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:30,149 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:30,149 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:30,149 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:30,150 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:30,150 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:30,150 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:30,151 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:30,151 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:30,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:30,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:30,154 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:30,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:30,159 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:30,159 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:30,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:30,160 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:30,160 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:30,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:30,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:30,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:30,161 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:30,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:30,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:30,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:30,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:30,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:30,169 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:30,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:30,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:30,170 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:30,170 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:30,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:30,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:30,171 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:30,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 06:23:30,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:30,175 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:30,177 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:30,177 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:30,178 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:30,178 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:30,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:30,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:30,179 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:30,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:30,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:30,181 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:23:30,183 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 06:23:30,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:30,186 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:30,196 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:30,196 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:30,197 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:30,197 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 06:23:30,201 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:30,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:30,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:30,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:30,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:30,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:30,205 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 06:23:30,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:30,207 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:30,209 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:30,210 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:30,210 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:30,210 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:30,211 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:30,211 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:30,211 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:30,212 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:30,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:30,215 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:23:30,253 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 06:23:30,254 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1260780813] [2020-09-25 06:23:30,255 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:30,255 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 06:23:30,255 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1904694520] [2020-09-25 06:23:30,261 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 06:23:30,262 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:30,262 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 06:23:30,262 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 06:23:30,263 INFO L87 Difference]: Start difference. First operand 245 states and 265 transitions. Second operand 4 states. [2020-09-25 06:23:30,919 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 06:23:31,806 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:31,807 INFO L93 Difference]: Finished difference Result 365 states and 409 transitions. [2020-09-25 06:23:31,808 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 06:23:31,808 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 06:23:31,809 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:31,812 INFO L225 Difference]: With dead ends: 365 [2020-09-25 06:23:31,813 INFO L226 Difference]: Without dead ends: 270 [2020-09-25 06:23:31,815 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:23:31,816 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 270 states. [2020-09-25 06:23:31,856 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 270 to 235. [2020-09-25 06:23:31,856 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 235 states. [2020-09-25 06:23:31,858 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 235 states to 235 states and 252 transitions. [2020-09-25 06:23:31,858 INFO L78 Accepts]: Start accepts. Automaton has 235 states and 252 transitions. Word has length 154 [2020-09-25 06:23:31,859 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:31,859 INFO L479 AbstractCegarLoop]: Abstraction has 235 states and 252 transitions. [2020-09-25 06:23:31,859 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 06:23:31,859 INFO L276 IsEmpty]: Start isEmpty. Operand 235 states and 252 transitions. [2020-09-25 06:23:31,862 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2020-09-25 06:23:31,862 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:31,862 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 06:23:31,863 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 06:23:31,863 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:31,863 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:31,863 INFO L82 PathProgramCache]: Analyzing trace with hash -1505861819, now seen corresponding path program 1 times [2020-09-25 06:23:31,864 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:31,864 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1557294820] [2020-09-25 06:23:31,864 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:31,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:31,960 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:32,162 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:35,359 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:35,360 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 200 [2020-09-25 06:23:35,360 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 06:23:35,360 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3447 [2020-09-25 06:23:35,361 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:35,361 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:35,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:35,361 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 146 [2020-09-25 06:23:35,362 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 06:23:35,362 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:35,647 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:35,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:35,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:35,669 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:35,771 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:35,772 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:35,772 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:35,772 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 110 [2020-09-25 06:23:35,772 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:35,773 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:35,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:35,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:35,773 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:35,774 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:35,818 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:35,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:35,820 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:35,822 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:35,822 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:35,823 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:35,823 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:35,823 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:35,825 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:35,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:35,825 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:35,826 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:35,826 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:23:35,828 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:35,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:35,830 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:35,832 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:35,832 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:35,833 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:35,833 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 06:23:35,833 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:35,834 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:35,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:35,834 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:35,835 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:35,835 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:35,837 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:35,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:35,839 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:35,843 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:35,844 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:35,844 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:35,844 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:35,845 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:35,845 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:35,846 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:35,847 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:35,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:35,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 06:23:35,850 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:35,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:35,853 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:35,855 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:35,856 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:35,856 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:35,908 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:35,908 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:35,908 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:35,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:35,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:35,909 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:35,909 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:35,923 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-25 06:23:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:35,926 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:35,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:35,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 06:23:35,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:35,932 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:35,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:35,933 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:35,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:35,934 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 06:23:35,935 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 06:23:35,937 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-25 06:23:35,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:35,940 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:35,956 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:35,957 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:35,957 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:35,957 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 17 [2020-09-25 06:23:35,961 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:35,961 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:35,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:35,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:35,962 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:35,966 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 06:23:35,968 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-09-25 06:23:35,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:35,971 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:35,974 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:35,974 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:35,974 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:35,975 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:35,975 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:35,976 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:35,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:35,976 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:35,977 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:35,977 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:35,979 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-09-25 06:23:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:35,981 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:35,992 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:35,993 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:35,993 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:35,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 06:23:35,994 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:35,994 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:35,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:35,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:35,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:35,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:36,050 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 06:23:36,051 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1557294820] [2020-09-25 06:23:36,052 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:36,052 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 06:23:36,053 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2013680665] [2020-09-25 06:23:36,054 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 06:23:36,055 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:36,055 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 06:23:36,057 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 06:23:36,057 INFO L87 Difference]: Start difference. First operand 235 states and 252 transitions. Second operand 5 states. [2020-09-25 06:23:36,640 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:23:38,115 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:38,116 INFO L93 Difference]: Finished difference Result 551 states and 637 transitions. [2020-09-25 06:23:38,116 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 06:23:38,117 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 167 [2020-09-25 06:23:38,117 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:38,121 INFO L225 Difference]: With dead ends: 551 [2020-09-25 06:23:38,121 INFO L226 Difference]: Without dead ends: 426 [2020-09-25 06:23:38,123 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 06:23:38,124 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2020-09-25 06:23:38,188 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 350. [2020-09-25 06:23:38,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 350 states. [2020-09-25 06:23:38,191 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 350 states to 350 states and 385 transitions. [2020-09-25 06:23:38,191 INFO L78 Accepts]: Start accepts. Automaton has 350 states and 385 transitions. Word has length 167 [2020-09-25 06:23:38,192 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:38,192 INFO L479 AbstractCegarLoop]: Abstraction has 350 states and 385 transitions. [2020-09-25 06:23:38,192 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 06:23:38,192 INFO L276 IsEmpty]: Start isEmpty. Operand 350 states and 385 transitions. [2020-09-25 06:23:38,195 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 06:23:38,195 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:38,196 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] [2020-09-25 06:23:38,196 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 06:23:38,196 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:38,196 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:38,197 INFO L82 PathProgramCache]: Analyzing trace with hash 955206154, now seen corresponding path program 1 times [2020-09-25 06:23:38,197 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:38,197 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1373649610] [2020-09-25 06:23:38,197 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:38,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:38,301 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,121 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,122 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 205 [2020-09-25 06:23:40,122 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,123 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1873 [2020-09-25 06:23:40,123 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,123 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 06:23:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 81 [2020-09-25 06:23:40,124 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 108 [2020-09-25 06:23:40,125 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,543 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 06:23:40,544 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 06:23:40,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,647 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,846 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,846 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 06:23:40,847 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,847 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 245 [2020-09-25 06:23:40,847 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,847 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:40,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,848 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 06:23:40,848 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,915 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 06:23:40,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,917 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,920 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,921 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:40,921 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,922 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:40,922 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,922 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:40,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,923 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:40,923 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 06:23:40,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,930 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,931 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:40,931 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,931 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:40,932 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,932 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:40,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,933 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:40,934 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,935 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 06:23:40,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,938 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,946 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,946 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:40,946 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,947 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 9 [2020-09-25 06:23:40,947 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,948 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:40,948 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,949 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:40,949 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 06:23:40,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,953 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,955 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,956 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 06:23:40,956 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,956 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:40,956 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,957 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,957 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 06:23:40,958 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-25 06:23:40,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,983 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 06:23:40,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 06:23:40,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,984 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:40,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,985 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 06:23:40,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,988 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 06:23:40,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:40,990 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:40,994 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:40,994 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:40,994 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:40,994 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 06:23:40,995 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:40,995 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:40,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 06:23:40,995 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:40,996 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:40,996 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:40,998 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 06:23:41,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:41,002 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:41,011 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:41,011 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:41,011 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:41,012 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 06:23:41,012 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:41,012 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:41,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 06:23:41,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 06:23:41,013 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 06:23:41,014 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:41,048 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 06:23:41,049 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 06:23:41,051 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 06:23:41,053 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 06:23:41,053 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 06:23:41,053 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 06:23:41,054 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 06:23:41,054 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 06:23:41,054 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.6 [2020-09-25 06:23:41,054 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 06:23:41,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 06:23:41,055 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 06:23:41,055 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 06:23:41,140 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 06:23:41,141 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1373649610] [2020-09-25 06:23:41,142 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 06:23:41,142 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-25 06:23:41,142 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1381892525] [2020-09-25 06:23:41,143 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-25 06:23:41,143 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 06:23:41,143 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-25 06:23:41,144 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-25 06:23:41,144 INFO L87 Difference]: Start difference. First operand 350 states and 385 transitions. Second operand 10 states. [2020-09-25 06:23:41,645 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:23:43,574 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:23:43,972 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:23:44,331 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:23:44,714 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 06:23:45,053 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-25 06:23:45,380 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:23:45,689 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 06:23:46,081 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 06:23:46,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 06:23:46,934 INFO L93 Difference]: Finished difference Result 928 states and 1119 transitions. [2020-09-25 06:23:46,935 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-25 06:23:46,935 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 172 [2020-09-25 06:23:46,936 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 06:23:46,942 INFO L225 Difference]: With dead ends: 928 [2020-09-25 06:23:46,942 INFO L226 Difference]: Without dead ends: 688 [2020-09-25 06:23:46,944 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 40 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 46 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=103, Invalid=277, Unknown=0, NotChecked=0, Total=380 [2020-09-25 06:23:46,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 688 states. [2020-09-25 06:23:47,033 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 688 to 583. [2020-09-25 06:23:47,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 583 states. [2020-09-25 06:23:47,037 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 583 states to 583 states and 661 transitions. [2020-09-25 06:23:47,038 INFO L78 Accepts]: Start accepts. Automaton has 583 states and 661 transitions. Word has length 172 [2020-09-25 06:23:47,038 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 06:23:47,039 INFO L479 AbstractCegarLoop]: Abstraction has 583 states and 661 transitions. [2020-09-25 06:23:47,039 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-25 06:23:47,039 INFO L276 IsEmpty]: Start isEmpty. Operand 583 states and 661 transitions. [2020-09-25 06:23:47,042 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-09-25 06:23:47,043 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 06:23:47,043 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 06:23:47,043 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 06:23:47,043 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 06:23:47,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 06:23:47,044 INFO L82 PathProgramCache]: Analyzing trace with hash 430422311, now seen corresponding path program 1 times [2020-09-25 06:23:47,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 06:23:47,044 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1520478068] [2020-09-25 06:23:47,044 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 06:23:47,104 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 06:23:47,111 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 06:23:47,112 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 06:23:47,117 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 06:23:47,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 06:23:47 BoogieIcfgContainer [2020-09-25 06:23:47,144 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 06:23:47,146 INFO L168 Benchmark]: Toolchain (without parser) took 32960.63 ms. Allocated memory was 138.4 MB in the beginning and 673.2 MB in the end (delta: 534.8 MB). Free memory was 101.0 MB in the beginning and 450.1 MB in the end (delta: -349.1 MB). Peak memory consumption was 185.7 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:47,147 INFO L168 Benchmark]: CDTParser took 0.46 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 06:23:47,148 INFO L168 Benchmark]: CACSL2BoogieTranslator took 792.01 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 100.4 MB in the beginning and 167.6 MB in the end (delta: -67.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:47,149 INFO L168 Benchmark]: Boogie Preprocessor took 102.60 ms. Allocated memory is still 200.8 MB. Free memory was 167.6 MB in the beginning and 163.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:47,150 INFO L168 Benchmark]: RCFGBuilder took 1638.33 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 163.4 MB in the beginning and 173.5 MB in the end (delta: -10.1 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:47,151 INFO L168 Benchmark]: TraceAbstraction took 30417.54 ms. Allocated memory was 231.7 MB in the beginning and 673.2 MB in the end (delta: 441.5 MB). Free memory was 173.5 MB in the beginning and 450.1 MB in the end (delta: -276.6 MB). Peak memory consumption was 164.8 MB. Max. memory is 7.1 GB. [2020-09-25 06:23:47,155 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.46 ms. Allocated memory is still 138.4 MB. Free memory was 119.9 MB in the beginning and 119.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 792.01 ms. Allocated memory was 138.4 MB in the beginning and 200.8 MB in the end (delta: 62.4 MB). Free memory was 100.4 MB in the beginning and 167.6 MB in the end (delta: -67.2 MB). Peak memory consumption was 26.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 102.60 ms. Allocated memory is still 200.8 MB. Free memory was 167.6 MB in the beginning and 163.4 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1638.33 ms. Allocated memory was 200.8 MB in the beginning and 231.7 MB in the end (delta: 30.9 MB). Free memory was 163.4 MB in the beginning and 173.5 MB in the end (delta: -10.1 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 30417.54 ms. Allocated memory was 231.7 MB in the beginning and 673.2 MB in the end (delta: 441.5 MB). Free memory was 173.5 MB in the beginning and 450.1 MB in the end (delta: -276.6 MB). Peak memory consumption was 164.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 927]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L247] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L590] int pumpRunning = 0; [L591] int systemActive = 1; [L834] int waterLevel = 1; [L835] int methaneLevelCritical = 0; [L522] int retValue_acc ; [L523] int tmp ; [L527] FCALL select_helpers() [L528] FCALL select_features() [L529] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L529] RET, EXPR valid_product() [L529] tmp = valid_product() [L531] COND TRUE \read(tmp) [L533] FCALL setup() [L534] CALL runTest() [L516] CALL test() [L766] int splverifierCounter ; [L767] int tmp ; [L768] int tmp___0 ; [L769] int tmp___1 ; [L770] int tmp___2 ; [L773] splverifierCounter = 0 [L775] COND TRUE 1 [L777] COND TRUE splverifierCounter < 4 [L783] tmp = __VERIFIER_nondet_int() [L785] COND TRUE \read(tmp) [L787] CALL waterRise() [L852] COND TRUE waterLevel < 2 [L853] waterLevel = waterLevel + 1 [L787] RET waterRise() [L793] tmp___0 = __VERIFIER_nondet_int() [L795] COND FALSE !(\read(tmp___0)) [L803] tmp___2 = __VERIFIER_nondet_int() [L805] COND FALSE !(\read(tmp___2)) [L811] tmp___1 = __VERIFIER_nondet_int() [L813] COND TRUE \read(tmp___1) [L815] CALL stopSystem() [L745] COND FALSE !(\read(pumpRunning)) [L752] systemActive = 0 [L815] RET stopSystem() [L822] CALL timeShift() [L597] COND FALSE !(\read(pumpRunning)) [L604] COND FALSE !(\read(systemActive)) [L612] CALL __utac_acc__Specification3_spec__1() [L550] int tmp ; [L551] int tmp___0 ; [L552] int tmp___1 ; [L556] CALL, EXPR isMethaneLevelCritical() [L873] int retValue_acc ; [L876] retValue_acc = methaneLevelCritical [L877] return (retValue_acc); [L556] RET, EXPR isMethaneLevelCritical() [L556] tmp = isMethaneLevelCritical() [L558] COND FALSE !(\read(tmp)) [L562] CALL, EXPR getWaterLevel() [L905] int retValue_acc ; [L908] retValue_acc = waterLevel [L909] return (retValue_acc); [L562] RET, EXPR getWaterLevel() [L562] tmp___0 = getWaterLevel() [L564] COND TRUE tmp___0 == 2 [L566] CALL, EXPR isPumpRunning() [L678] int retValue_acc ; [L681] retValue_acc = pumpRunning [L682] return (retValue_acc); [L566] RET, EXPR isPumpRunning() [L566] tmp___1 = isPumpRunning() [L568] COND FALSE !(\read(tmp___1)) [L572] CALL __automaton_fail() [L927] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 619 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 30.3s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 10.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 954 SDtfs, 1432 SDslu, 867 SDs, 0 SdLazy, 1988 SolverSat, 506 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 103 GetRequests, 76 SyntacticMatches, 0 SemanticMatches, 27 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 47 ImplicationChecksByTransitivity, 4.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=583occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 4 MinimizatonAttempts, 258 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 18.3s InterpolantComputationTime, 823 NumberOfCodeBlocks, 823 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 642 ConstructedInterpolants, 0 QuantifiedInterpolants, 254693 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...