/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=1.0 --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_product15.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 08:41:09,166 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 08:41:09,170 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 08:41:09,202 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 08:41:09,202 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 08:41:09,203 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 08:41:09,205 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 08:41:09,207 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 08:41:09,208 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 08:41:09,209 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 08:41:09,210 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 08:41:09,211 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 08:41:09,212 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 08:41:09,213 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 08:41:09,214 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 08:41:09,215 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 08:41:09,216 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 08:41:09,218 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 08:41:09,219 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 08:41:09,221 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 08:41:09,223 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 08:41:09,224 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 08:41:09,225 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 08:41:09,226 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 08:41:09,229 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 08:41:09,229 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 08:41:09,229 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 08:41:09,230 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 08:41:09,231 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 08:41:09,232 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 08:41:09,232 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 08:41:09,233 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 08:41:09,234 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 08:41:09,235 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 08:41:09,236 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 08:41:09,236 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 08:41:09,237 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 08:41:09,238 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 08:41:09,238 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 08:41:09,239 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 08:41:09,240 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 08:41:09,241 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 08:41:09,267 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 08:41:09,268 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 08:41:09,269 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 08:41:09,269 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 08:41:09,270 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 08:41:09,270 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 08:41:09,270 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 08:41:09,270 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 08:41:09,270 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 08:41:09,271 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 08:41:09,271 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 08:41:09,271 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 08:41:09,271 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 08:41:09,271 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 08:41:09,272 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 08:41:09,272 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 08:41:09,272 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 08:41:09,272 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 08:41:09,273 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 08:41:09,273 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 08:41:09,273 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 08:41:09,273 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 08:41:09,273 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 08:41:09,274 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 08:41:09,274 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 08:41:09,274 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 08:41:09,274 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 08:41:09,274 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 08:41:09,275 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 08:41:09,275 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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;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=1.0;log-additional-information=true; [2020-09-25 08:41:09,723 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 08:41:09,751 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 08:41:09,756 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 08:41:09,758 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 08:41:09,759 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 08:41:09,761 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c [2020-09-25 08:41:09,855 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1758224b/4809f60936b14e6aae14ce340d71345f/FLAG5105788c5 [2020-09-25 08:41:10,458 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 08:41:10,459 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product15.cil.c [2020-09-25 08:41:10,473 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1758224b/4809f60936b14e6aae14ce340d71345f/FLAG5105788c5 [2020-09-25 08:41:10,734 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a1758224b/4809f60936b14e6aae14ce340d71345f [2020-09-25 08:41:10,747 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 08:41:10,753 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 08:41:10,755 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 08:41:10,755 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 08:41:10,759 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 08:41:10,760 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:41:10" (1/1) ... [2020-09-25 08:41:10,765 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@53d96e6a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:10, skipping insertion in model container [2020-09-25 08:41:10,765 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 08:41:10" (1/1) ... [2020-09-25 08:41:10,774 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 08:41:10,822 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 08:41:11,304 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:41:11,319 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 08:41:11,414 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 08:41:11,449 INFO L208 MainTranslator]: Completed translation [2020-09-25 08:41:11,450 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:11 WrapperNode [2020-09-25 08:41:11,450 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 08:41:11,451 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 08:41:11,451 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 08:41:11,451 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 08:41:11,469 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:11" (1/1) ... [2020-09-25 08:41:11,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:11" (1/1) ... [2020-09-25 08:41:11,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:11" (1/1) ... [2020-09-25 08:41:11,493 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:11" (1/1) ... [2020-09-25 08:41:11,548 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:11" (1/1) ... [2020-09-25 08:41:11,569 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:11" (1/1) ... [2020-09-25 08:41:11,576 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:11" (1/1) ... [2020-09-25 08:41:11,595 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 08:41:11,595 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 08:41:11,595 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 08:41:11,596 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 08:41:11,601 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:11" (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 08:41:11,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 08:41:11,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 08:41:11,672 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 08:41:11,673 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 08:41:11,673 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 08:41:11,673 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 08:41:11,673 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 08:41:11,673 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 08:41:11,674 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 08:41:11,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 08:41:11,674 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 08:41:11,674 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 08:41:11,674 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 08:41:11,674 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 08:41:11,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 08:41:11,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 08:41:11,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 08:41:11,675 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 08:41:11,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 08:41:11,676 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 08:41:11,676 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 08:41:11,676 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 08:41:11,676 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 08:41:11,677 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 08:41:11,677 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 08:41:11,677 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 08:41:11,677 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 08:41:11,677 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 08:41:11,677 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 08:41:11,678 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 08:41:11,678 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 08:41:11,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 08:41:11,678 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 08:41:11,678 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 08:41:11,678 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 08:41:11,679 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 08:41:11,679 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 08:41:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 08:41:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 08:41:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 08:41:11,679 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 08:41:11,680 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 08:41:11,680 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 08:41:11,680 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 08:41:11,680 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 08:41:11,680 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 08:41:11,680 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 08:41:11,681 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 08:41:11,681 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 08:41:11,681 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 08:41:11,681 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 08:41:11,681 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-25 08:41:11,681 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 08:41:11,681 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 08:41:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 08:41:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 08:41:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 08:41:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 08:41:11,682 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 08:41:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 08:41:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 08:41:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 08:41:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 08:41:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 08:41:11,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 08:41:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 08:41:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 08:41:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 08:41:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 08:41:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 08:41:11,684 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 08:41:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 08:41:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 08:41:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 08:41:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 08:41:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 08:41:11,685 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 08:41:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 08:41:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 08:41:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 08:41:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 08:41:11,686 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 08:41:11,687 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 08:41:11,687 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 08:41:11,687 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 08:41:11,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 08:41:11,687 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 08:41:11,687 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 08:41:12,903 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 08:41:12,904 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 08:41:12,911 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:41:12 BoogieIcfgContainer [2020-09-25 08:41:12,912 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 08:41:12,913 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 08:41:12,913 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 08:41:12,917 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 08:41:12,917 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 08:41:10" (1/3) ... [2020-09-25 08:41:12,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea4e3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:41:12, skipping insertion in model container [2020-09-25 08:41:12,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 08:41:11" (2/3) ... [2020-09-25 08:41:12,919 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7ea4e3f9 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 08:41:12, skipping insertion in model container [2020-09-25 08:41:12,919 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 08:41:12" (3/3) ... [2020-09-25 08:41:12,922 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product15.cil.c [2020-09-25 08:41:12,934 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 08:41:12,945 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 08:41:12,967 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 08:41:12,997 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 08:41:12,997 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 08:41:12,997 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 08:41:12,998 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 08:41:12,998 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 08:41:12,998 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 08:41:12,998 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 08:41:12,998 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 08:41:13,029 INFO L276 IsEmpty]: Start isEmpty. Operand 291 states. [2020-09-25 08:41:13,048 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 08:41:13,048 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:41:13,050 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 08:41:13,050 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:41:13,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:41:13,059 INFO L82 PathProgramCache]: Analyzing trace with hash -572002072, now seen corresponding path program 1 times [2020-09-25 08:41:13,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:41:13,071 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1439356382] [2020-09-25 08:41:13,071 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:41:13,399 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:13,619 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:13,829 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:15,446 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:18,444 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:18,449 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 08:41:18,449 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:41:18,449 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5034 [2020-09-25 08:41:18,453 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:18,454 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:18,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:18,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 129 [2020-09-25 08:41:18,454 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:18,455 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 4 [2020-09-25 08:41:18,978 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:41:18,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:41:18,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:19,004 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:19,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:19,117 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:41:19,117 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:19,117 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 122 [2020-09-25 08:41:19,118 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:19,118 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:19,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:19,119 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:19,195 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:41:19,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:19,198 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:19,201 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:19,201 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:19,201 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:19,202 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:41:19,202 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:19,202 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:19,202 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:19,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:19,203 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:19,203 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:19,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:41:19,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:19,209 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:19,211 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:19,211 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:19,211 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:19,212 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:41:19,215 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:19,215 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:19,215 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:19,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:19,216 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:19,216 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:19,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:41:19,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:19,221 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:19,225 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:19,226 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:19,226 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:19,226 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:41:19,227 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:19,227 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:19,227 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:19,228 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:19,228 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:19,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:41:19,230 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:19,235 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:19,237 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:19,238 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:19,238 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:19,238 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 08:41:19,238 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:19,239 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:19,239 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:19,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:19,240 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:19,240 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:19,241 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 08:41:19,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:19,244 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:19,246 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:19,246 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:19,247 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:19,247 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:19,247 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:19,247 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:19,248 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:19,249 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:19,249 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:19,251 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:41:19,255 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:19,257 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:19,271 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:19,272 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:19,272 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:19,272 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 15 [2020-09-25 08:41:19,272 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:19,272 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:19,273 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:19,273 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:19,276 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 08:41:19,279 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:19,281 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:19,283 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:19,284 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:19,284 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:19,284 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:19,285 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:19,285 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:19,285 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:19,286 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:19,327 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 08:41:19,329 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1439356382] [2020-09-25 08:41:19,332 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:41:19,333 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-25 08:41:19,334 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [233586792] [2020-09-25 08:41:19,353 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-25 08:41:19,354 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:41:19,373 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-25 08:41:19,375 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-25 08:41:19,378 INFO L87 Difference]: Start difference. First operand 291 states. Second operand 3 states. [2020-09-25 08:41:20,701 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:41:20,701 INFO L93 Difference]: Finished difference Result 427 states and 514 transitions. [2020-09-25 08:41:20,702 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-25 08:41:20,703 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-09-25 08:41:20,709 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:41:20,741 INFO L225 Difference]: With dead ends: 427 [2020-09-25 08:41:20,741 INFO L226 Difference]: Without dead ends: 271 [2020-09-25 08:41:20,750 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 08:41:20,773 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-09-25 08:41:20,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 230. [2020-09-25 08:41:20,849 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2020-09-25 08:41:20,851 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 250 transitions. [2020-09-25 08:41:20,853 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 250 transitions. Word has length 153 [2020-09-25 08:41:20,854 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:41:20,854 INFO L479 AbstractCegarLoop]: Abstraction has 230 states and 250 transitions. [2020-09-25 08:41:20,855 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-25 08:41:20,855 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 250 transitions. [2020-09-25 08:41:20,860 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-09-25 08:41:20,860 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:41:20,861 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 08:41:20,861 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 08:41:20,861 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:41:20,862 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:41:20,862 INFO L82 PathProgramCache]: Analyzing trace with hash 1995098950, now seen corresponding path program 1 times [2020-09-25 08:41:20,862 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:41:20,862 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [302206840] [2020-09-25 08:41:20,863 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:41:20,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:20,991 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:21,096 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:22,688 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:25,927 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:25,928 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 187 [2020-09-25 08:41:25,928 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 08:41:25,928 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5000 [2020-09-25 08:41:25,929 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:25,929 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:25,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:25,929 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 128 [2020-09-25 08:41:25,930 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 3 [2020-09-25 08:41:25,930 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:26,251 WARN L193 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:41:26,253 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:41:26,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:26,282 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:26,384 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:26,384 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:41:26,384 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:26,385 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 117 [2020-09-25 08:41:26,385 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:26,385 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:26,385 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:26,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:26,386 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:26,386 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:26,421 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:41:26,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:26,424 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:26,425 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:26,425 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:26,426 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:26,426 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:26,426 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:26,426 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:26,427 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:26,427 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:26,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:41:26,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:26,430 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:26,432 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:26,432 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:26,432 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:26,432 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:41:26,433 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:26,433 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:26,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:26,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:26,433 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:26,434 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:26,435 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:41:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:26,437 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:26,441 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:26,441 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:26,442 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:26,442 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:41:26,442 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:26,442 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:26,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:26,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:26,443 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:26,444 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:26,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:41:26,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:26,448 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:26,449 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:26,450 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:26,450 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:26,450 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:26,450 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:26,450 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:26,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:26,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:26,451 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:26,451 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:26,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-09-25 08:41:26,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:26,455 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:26,457 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:26,457 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:26,457 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:26,457 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:41:26,458 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:26,458 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:26,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:26,458 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:26,459 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:26,459 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:26,461 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-25 08:41:26,462 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:26,464 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:26,466 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:26,467 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:26,467 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:26,467 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:26,467 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:26,468 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:26,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:26,468 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:26,469 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:26,470 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:41:26,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-09-25 08:41:26,472 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:26,474 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:26,476 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:26,476 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:26,477 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:26,477 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:26,477 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:26,477 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:26,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:26,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:26,478 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:26,478 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:26,504 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 08:41:26,504 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [302206840] [2020-09-25 08:41:26,512 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:41:26,512 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-25 08:41:26,512 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2144505668] [2020-09-25 08:41:26,516 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-25 08:41:26,516 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:41:26,516 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-25 08:41:26,516 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-25 08:41:26,517 INFO L87 Difference]: Start difference. First operand 230 states and 250 transitions. Second operand 4 states. [2020-09-25 08:41:27,139 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-25 08:41:27,929 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:41:27,929 INFO L93 Difference]: Finished difference Result 338 states and 381 transitions. [2020-09-25 08:41:27,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-25 08:41:27,930 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-09-25 08:41:27,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:41:27,934 INFO L225 Difference]: With dead ends: 338 [2020-09-25 08:41:27,935 INFO L226 Difference]: Without dead ends: 254 [2020-09-25 08:41:27,936 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 08:41:27,937 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 254 states. [2020-09-25 08:41:27,975 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 254 to 220. [2020-09-25 08:41:27,975 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 220 states. [2020-09-25 08:41:27,976 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 220 states to 220 states and 237 transitions. [2020-09-25 08:41:27,977 INFO L78 Accepts]: Start accepts. Automaton has 220 states and 237 transitions. Word has length 154 [2020-09-25 08:41:27,977 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:41:27,978 INFO L479 AbstractCegarLoop]: Abstraction has 220 states and 237 transitions. [2020-09-25 08:41:27,978 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-25 08:41:27,978 INFO L276 IsEmpty]: Start isEmpty. Operand 220 states and 237 transitions. [2020-09-25 08:41:27,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-09-25 08:41:27,981 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:41:27,982 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:41:27,982 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 08:41:27,982 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:41:27,982 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:41:27,982 INFO L82 PathProgramCache]: Analyzing trace with hash -794008811, now seen corresponding path program 1 times [2020-09-25 08:41:27,983 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:41:27,983 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [864477627] [2020-09-25 08:41:27,983 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:41:28,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:28,083 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:28,985 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:31,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:31,904 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 194 [2020-09-25 08:41:31,904 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 2 [2020-09-25 08:41:31,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3871 [2020-09-25 08:41:31,905 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:31,905 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:31,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 14 [2020-09-25 08:41:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 80 [2020-09-25 08:41:31,906 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 98 [2020-09-25 08:41:31,906 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:32,444 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:41:32,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:41:32,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:32,532 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:32,780 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:32,780 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:41:32,781 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:32,781 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 292 [2020-09-25 08:41:32,782 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:32,782 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:32,782 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:32,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:32,783 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 76 [2020-09-25 08:41:32,783 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:32,846 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:41:32,847 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:32,848 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:32,851 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:32,851 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:32,851 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:32,851 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:32,851 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:32,852 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:32,853 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:32,853 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:32,855 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:41:32,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:32,858 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:32,862 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:32,862 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:32,862 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:32,863 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:41:32,863 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:32,863 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:32,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:32,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:32,864 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:32,865 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:32,866 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:41:32,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:32,870 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:32,878 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:32,879 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:32,879 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:32,879 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 08:41:32,880 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:32,880 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:32,880 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:32,882 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:32,883 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:41:32,883 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 08:41:32,885 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:41:32,886 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:32,888 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:32,892 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:32,892 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:32,892 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:32,893 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 08:41:32,893 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:32,893 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:32,894 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:32,895 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:32,896 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 08:41:32,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:32,899 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:32,903 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:32,903 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:32,903 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:32,904 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:41:32,904 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:32,904 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:32,905 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:41:32,907 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 2 [2020-09-25 08:41:32,909 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 08:41:32,911 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:32,913 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:32,922 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:32,923 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:32,923 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:32,924 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 11 [2020-09-25 08:41:32,924 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:32,924 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 08:41:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:32,925 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:41:32,926 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:32,965 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-09-25 08:41:32,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:32,968 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:32,970 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:32,970 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:32,971 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:32,971 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:32,971 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:32,972 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:32,972 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:32,973 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:32,973 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:33,027 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 08:41:33,027 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [864477627] [2020-09-25 08:41:33,028 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:41:33,028 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 08:41:33,028 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1785744605] [2020-09-25 08:41:33,029 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 08:41:33,029 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:41:33,030 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 08:41:33,031 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 08:41:33,031 INFO L87 Difference]: Start difference. First operand 220 states and 237 transitions. Second operand 8 states. [2020-09-25 08:41:33,496 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:41:35,113 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:41:35,380 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:41:35,697 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:41:36,054 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 08:41:36,340 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:41:36,667 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:41:37,012 WARN L193 SmtUtils]: Spent 293.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 08:41:37,535 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:41:37,535 INFO L93 Difference]: Finished difference Result 468 states and 548 transitions. [2020-09-25 08:41:37,537 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 08:41:37,537 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 163 [2020-09-25 08:41:37,538 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:41:37,541 INFO L225 Difference]: With dead ends: 468 [2020-09-25 08:41:37,541 INFO L226 Difference]: Without dead ends: 358 [2020-09-25 08:41:37,545 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 08:41:37,548 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 358 states. [2020-09-25 08:41:37,617 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 358 to 318. [2020-09-25 08:41:37,617 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 318 states. [2020-09-25 08:41:37,620 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 318 states to 318 states and 353 transitions. [2020-09-25 08:41:37,620 INFO L78 Accepts]: Start accepts. Automaton has 318 states and 353 transitions. Word has length 163 [2020-09-25 08:41:37,621 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:41:37,621 INFO L479 AbstractCegarLoop]: Abstraction has 318 states and 353 transitions. [2020-09-25 08:41:37,621 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 08:41:37,621 INFO L276 IsEmpty]: Start isEmpty. Operand 318 states and 353 transitions. [2020-09-25 08:41:37,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2020-09-25 08:41:37,625 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:41:37,625 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] [2020-09-25 08:41:37,625 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 08:41:37,626 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:41:37,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:41:37,626 INFO L82 PathProgramCache]: Analyzing trace with hash 876886047, now seen corresponding path program 1 times [2020-09-25 08:41:37,626 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:41:37,627 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1076719653] [2020-09-25 08:41:37,627 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:41:37,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:37,731 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:38,783 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:38,783 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 201 [2020-09-25 08:41:38,783 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:38,784 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 1104 [2020-09-25 08:41:38,784 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:38,784 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:38,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 8 [2020-09-25 08:41:38,784 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 78 [2020-09-25 08:41:38,785 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 77 [2020-09-25 08:41:38,785 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:39,070 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 08:41:39,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 08:41:39,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:39,146 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:39,411 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:39,412 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 08:41:39,412 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:39,412 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 304 [2020-09-25 08:41:39,412 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:39,413 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:39,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:39,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:39,413 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 74 [2020-09-25 08:41:39,413 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:39,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 08:41:39,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:39,459 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:39,462 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:39,463 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:39,463 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:39,463 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:41:39,463 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:39,463 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:39,464 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:39,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:39,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 08:41:39,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:39,470 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:39,472 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:39,472 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:39,473 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:39,473 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:41:39,473 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:39,473 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:39,474 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:39,474 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:39,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 08:41:39,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:39,479 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:39,485 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:39,485 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:39,486 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:39,486 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 08:41:39,486 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:39,486 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:39,487 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 08:41:39,487 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:39,489 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 08:41:39,490 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:39,491 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:39,493 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:39,494 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 08:41:39,494 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:39,494 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 08:41:39,494 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:39,494 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:39,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:39,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:39,495 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 08:41:39,495 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:39,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 08:41:39,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:39,507 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:39,514 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:39,514 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 08:41:39,514 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:39,514 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 08:41:39,515 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:39,515 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:39,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 08:41:39,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 08:41:39,515 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 6 [2020-09-25 08:41:39,516 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:41:39,517 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-09-25 08:41:39,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:39,519 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:39,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:39,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:39,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:39,521 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:41:39,521 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:39,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:39,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:39,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:39,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:39,522 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 0 [2020-09-25 08:41:39,524 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-09-25 08:41:39,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:39,525 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:39,529 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:39,530 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:39,530 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:39,530 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 08:41:39,530 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:39,530 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:39,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:39,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:39,531 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:39,532 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:39,533 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-09-25 08:41:39,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 08:41:39,536 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 08:41:39,537 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 08:41:39,538 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 08:41:39,538 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 08:41:39,538 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 08:41:39,538 FATAL L256 erpolLogProxyWrapper]: Heuristic: WIDESTAMONGSMALL [2020-09-25 08:41:39,538 FATAL L256 erpolLogProxyWrapper]: Tolerance: 1.0 [2020-09-25 08:41:39,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 08:41:39,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 08:41:39,539 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 08:41:39,539 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 08:41:39,583 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 08:41:39,583 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1076719653] [2020-09-25 08:41:39,584 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 08:41:39,584 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-09-25 08:41:39,584 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2134129411] [2020-09-25 08:41:39,584 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-09-25 08:41:39,585 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 08:41:39,585 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-09-25 08:41:39,585 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-09-25 08:41:39,585 INFO L87 Difference]: Start difference. First operand 318 states and 353 transitions. Second operand 5 states. [2020-09-25 08:41:40,048 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 08:41:41,683 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 08:41:41,683 INFO L93 Difference]: Finished difference Result 840 states and 1004 transitions. [2020-09-25 08:41:41,684 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-09-25 08:41:41,684 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 168 [2020-09-25 08:41:41,685 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 08:41:41,690 INFO L225 Difference]: With dead ends: 840 [2020-09-25 08:41:41,690 INFO L226 Difference]: Without dead ends: 632 [2020-09-25 08:41:41,692 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 27 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-09-25 08:41:41,693 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 632 states. [2020-09-25 08:41:41,779 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 632 to 527. [2020-09-25 08:41:41,780 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-09-25 08:41:41,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 603 transitions. [2020-09-25 08:41:41,784 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 603 transitions. Word has length 168 [2020-09-25 08:41:41,784 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 08:41:41,784 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 603 transitions. [2020-09-25 08:41:41,785 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-09-25 08:41:41,785 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 603 transitions. [2020-09-25 08:41:41,789 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-09-25 08:41:41,789 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 08:41:41,789 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 08:41:41,790 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-25 08:41:41,790 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 08:41:41,790 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 08:41:41,790 INFO L82 PathProgramCache]: Analyzing trace with hash 942920496, now seen corresponding path program 1 times [2020-09-25 08:41:41,791 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 08:41:41,791 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1478928726] [2020-09-25 08:41:41,791 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 08:41:41,854 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 08:41:41,862 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 08:41:41,862 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 08:41:41,868 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-25 08:41:41,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 08:41:41 BoogieIcfgContainer [2020-09-25 08:41:41,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 08:41:41,899 INFO L168 Benchmark]: Toolchain (without parser) took 31150.69 ms. Allocated memory was 138.4 MB in the beginning and 631.8 MB in the end (delta: 493.4 MB). Free memory was 100.6 MB in the beginning and 476.6 MB in the end (delta: -376.1 MB). Peak memory consumption was 117.3 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:41,900 INFO L168 Benchmark]: CDTParser took 0.62 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-25 08:41:41,901 INFO L168 Benchmark]: CACSL2BoogieTranslator took 696.11 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.9 MB in the beginning and 170.7 MB in the end (delta: -70.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:41,902 INFO L168 Benchmark]: Boogie Preprocessor took 143.84 ms. Allocated memory is still 202.4 MB. Free memory was 170.7 MB in the beginning and 166.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:41,903 INFO L168 Benchmark]: RCFGBuilder took 1316.63 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 166.1 MB in the beginning and 178.0 MB in the end (delta: -11.9 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:41,904 INFO L168 Benchmark]: TraceAbstraction took 28984.11 ms. Allocated memory was 233.3 MB in the beginning and 631.8 MB in the end (delta: 398.5 MB). Free memory was 178.0 MB in the beginning and 476.6 MB in the end (delta: -298.6 MB). Peak memory consumption was 99.9 MB. Max. memory is 7.1 GB. [2020-09-25 08:41:41,909 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.62 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 696.11 ms. Allocated memory was 138.4 MB in the beginning and 202.4 MB in the end (delta: 64.0 MB). Free memory was 99.9 MB in the beginning and 170.7 MB in the end (delta: -70.8 MB). Peak memory consumption was 27.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 143.84 ms. Allocated memory is still 202.4 MB. Free memory was 170.7 MB in the beginning and 166.1 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1316.63 ms. Allocated memory was 202.4 MB in the beginning and 233.3 MB in the end (delta: 30.9 MB). Free memory was 166.1 MB in the beginning and 178.0 MB in the end (delta: -11.9 MB). Peak memory consumption was 85.7 MB. Max. memory is 7.1 GB. * TraceAbstraction took 28984.11 ms. Allocated memory was 233.3 MB in the beginning and 631.8 MB in the end (delta: 398.5 MB). Free memory was 178.0 MB in the beginning and 476.6 MB in the end (delta: -298.6 MB). Peak memory consumption was 99.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 870]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int pumpRunning = 0; [L50] int systemActive = 1; [L454] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L652] int waterLevel = 1; [L653] int methaneLevelCritical = 0; [L732] int cleanupTimeShifts = 4; [L808] int retValue_acc ; [L809] int tmp ; [L813] FCALL select_helpers() [L814] FCALL select_features() [L815] CALL, EXPR valid_product() [L901] int retValue_acc ; [L904] retValue_acc = 1 [L905] return (retValue_acc); [L815] RET, EXPR valid_product() [L815] tmp = valid_product() [L817] COND TRUE \read(tmp) [L819] FCALL setup() [L820] CALL runTest() [L799] CALL test() [L219] int splverifierCounter ; [L220] int tmp ; [L221] int tmp___0 ; [L222] int tmp___1 ; [L223] int tmp___2 ; [L226] splverifierCounter = 0 [L228] COND TRUE 1 [L230] COND TRUE splverifierCounter < 4 [L236] tmp = __VERIFIER_nondet_int() [L238] COND TRUE \read(tmp) [L240] CALL waterRise() [L670] COND TRUE waterLevel < 2 [L671] waterLevel = waterLevel + 1 [L240] RET waterRise() [L246] tmp___0 = __VERIFIER_nondet_int() [L248] COND FALSE !(\read(tmp___0)) [L256] tmp___2 = __VERIFIER_nondet_int() [L258] COND TRUE \read(tmp___2) [L273] CALL timeShift() [L57] COND FALSE !(\read(pumpRunning)) [L64] COND TRUE \read(systemActive) [L66] CALL processEnvironment() [L86] int tmp ; [L89] COND FALSE !(\read(pumpRunning)) [L104] FCALL processEnvironment__wrappee__methaneQuery() [L66] RET processEnvironment() [L72] CALL __utac_acc__Specification3_spec__1() [L833] int tmp ; [L834] int tmp___0 ; [L835] int tmp___1 ; [L839] CALL, EXPR isMethaneLevelCritical() [L691] int retValue_acc ; [L694] retValue_acc = methaneLevelCritical [L695] return (retValue_acc); [L839] RET, EXPR isMethaneLevelCritical() [L839] tmp = isMethaneLevelCritical() [L841] COND FALSE !(\read(tmp)) [L845] CALL, EXPR getWaterLevel() [L723] int retValue_acc ; [L726] retValue_acc = waterLevel [L727] return (retValue_acc); [L845] RET, EXPR getWaterLevel() [L845] tmp___0 = getWaterLevel() [L847] COND TRUE tmp___0 == 2 [L849] CALL, EXPR isPumpRunning() [L155] int retValue_acc ; [L158] retValue_acc = pumpRunning [L159] return (retValue_acc); [L849] RET, EXPR isPumpRunning() [L849] tmp___1 = isPumpRunning() [L851] COND FALSE !(\read(tmp___1)) [L855] CALL __automaton_fail() [L870] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 605 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 28.8s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 9.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 884 SDtfs, 889 SDslu, 801 SDs, 0 SdLazy, 1753 SolverSat, 307 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 5.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 101 GetRequests, 77 SyntacticMatches, 1 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 3.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=527occurred 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, 220 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.4s SatisfiabilityAnalysisTime, 18.2s InterpolantComputationTime, 814 NumberOfCodeBlocks, 814 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 634 ConstructedInterpolants, 0 QuantifiedInterpolants, 250444 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...