/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.smt.solver Internal_SMTInterpol --traceabstraction.compute.trace.for.counterexample.result false --rcfgbuilder.size.of.a.code.block SingleStatement --traceabstraction.use.minimal.unsat.core.enumeration true --traceabstraction.additional.smt.options produce-proofs=true --traceabstraction.additional.smt.options produce-unsat-cores=true --traceabstraction.additional.smt.options enumeration-timeout=5000 --traceabstraction.additional.smt.options interpolation-heuristic=SMALLESTAMONGWIDE --traceabstraction.additional.smt.options tolerance=0.1 --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_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-25 09:48:44,063 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-25 09:48:44,067 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-25 09:48:44,120 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-25 09:48:44,121 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-25 09:48:44,134 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-25 09:48:44,138 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-25 09:48:44,141 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-25 09:48:44,143 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-25 09:48:44,144 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-25 09:48:44,147 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-25 09:48:44,149 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-25 09:48:44,150 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-25 09:48:44,154 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-25 09:48:44,156 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-25 09:48:44,159 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-25 09:48:44,161 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-25 09:48:44,162 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-25 09:48:44,164 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-25 09:48:44,172 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-25 09:48:44,173 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-25 09:48:44,175 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-25 09:48:44,177 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-25 09:48:44,178 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-25 09:48:44,183 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-25 09:48:44,183 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-25 09:48:44,183 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-25 09:48:44,185 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-25 09:48:44,185 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-25 09:48:44,189 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-25 09:48:44,190 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-25 09:48:44,190 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-25 09:48:44,191 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-25 09:48:44,192 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-25 09:48:44,194 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-25 09:48:44,194 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-25 09:48:44,195 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-25 09:48:44,195 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-25 09:48:44,195 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-25 09:48:44,197 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-25 09:48:44,198 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-25 09:48:44,199 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 09:48:44,235 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-25 09:48:44,235 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-25 09:48:44,237 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-25 09:48:44,237 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-25 09:48:44,237 INFO L138 SettingsManager]: * Use SBE=true [2020-09-25 09:48:44,238 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-25 09:48:44,238 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-25 09:48:44,238 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-25 09:48:44,238 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-25 09:48:44,238 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-25 09:48:44,239 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-25 09:48:44,239 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-25 09:48:44,239 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-25 09:48:44,239 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-25 09:48:44,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-25 09:48:44,240 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-25 09:48:44,240 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-25 09:48:44,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-25 09:48:44,240 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-25 09:48:44,241 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-25 09:48:44,241 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-25 09:48:44,241 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-25 09:48:44,241 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-25 09:48:44,241 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-25 09:48:44,242 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-25 09:48:44,242 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-25 09:48:44,242 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-25 09:48:44,242 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-25 09:48:44,242 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-25 09:48:44,243 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> FIXED_PREFERENCES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: SMT solver -> Internal_SMTInterpol Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute trace for counterexample result -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder: Size of a code block -> SingleStatement Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use minimal unsat core enumeration -> true Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Additional SMT options -> produce-proofs=true;produce-unsat-cores=true;enumeration-timeout=5000;interpolation-heuristic=SMALLESTAMONGWIDE;tolerance=0.1;log-additional-information=true; [2020-09-25 09:48:44,685 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-25 09:48:44,708 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-25 09:48:44,713 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-25 09:48:44,715 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-25 09:48:44,715 INFO L275 PluginConnector]: CDTParser initialized [2020-09-25 09:48:44,716 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-09-25 09:48:44,803 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4ab1c2d7/591c2a4337f04ace8107b5c49192e18e/FLAG6ea656ad8 [2020-09-25 09:48:45,405 INFO L306 CDTParser]: Found 1 translation units. [2020-09-25 09:48:45,406 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-09-25 09:48:45,420 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4ab1c2d7/591c2a4337f04ace8107b5c49192e18e/FLAG6ea656ad8 [2020-09-25 09:48:45,693 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/a4ab1c2d7/591c2a4337f04ace8107b5c49192e18e [2020-09-25 09:48:45,706 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-25 09:48:45,711 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-25 09:48:45,712 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-25 09:48:45,712 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-25 09:48:45,716 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-25 09:48:45,717 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:45" (1/1) ... [2020-09-25 09:48:45,721 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@51a556b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:45, skipping insertion in model container [2020-09-25 09:48:45,721 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 25.09 09:48:45" (1/1) ... [2020-09-25 09:48:45,731 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-25 09:48:45,799 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-25 09:48:46,156 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:48:46,172 INFO L203 MainTranslator]: Completed pre-run [2020-09-25 09:48:46,420 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-25 09:48:46,454 INFO L208 MainTranslator]: Completed translation [2020-09-25 09:48:46,454 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46 WrapperNode [2020-09-25 09:48:46,454 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-25 09:48:46,455 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-25 09:48:46,455 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-25 09:48:46,456 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-25 09:48:46,470 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ... [2020-09-25 09:48:46,470 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ... [2020-09-25 09:48:46,492 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ... [2020-09-25 09:48:46,492 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ... [2020-09-25 09:48:46,525 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ... [2020-09-25 09:48:46,538 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ... [2020-09-25 09:48:46,544 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (1/1) ... [2020-09-25 09:48:46,552 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-25 09:48:46,552 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-25 09:48:46,552 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-25 09:48:46,553 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-25 09:48:46,554 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (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 09:48:46,654 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-25 09:48:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-25 09:48:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-25 09:48:46,655 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-25 09:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-25 09:48:46,656 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-25 09:48:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-09-25 09:48:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-25 09:48:46,657 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-25 09:48:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-25 09:48:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-25 09:48:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-25 09:48:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-25 09:48:46,658 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-25 09:48:46,659 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-25 09:48:46,660 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-25 09:48:46,660 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-25 09:48:46,660 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-25 09:48:46,661 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-25 09:48:46,661 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-25 09:48:46,661 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-25 09:48:46,662 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-25 09:48:46,662 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-25 09:48:46,662 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-25 09:48:46,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-25 09:48:46,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-25 09:48:46,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-25 09:48:46,663 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-25 09:48:46,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-25 09:48:46,664 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-25 09:48:46,664 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-25 09:48:46,664 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-25 09:48:46,664 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-25 09:48:46,664 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-25 09:48:46,664 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-25 09:48:46,665 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-25 09:48:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-25 09:48:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-25 09:48:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-25 09:48:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-25 09:48:46,665 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-25 09:48:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-25 09:48:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-25 09:48:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-09-25 09:48:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-25 09:48:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-25 09:48:46,666 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-25 09:48:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-25 09:48:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-25 09:48:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-25 09:48:46,667 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-25 09:48:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-25 09:48:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-25 09:48:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-25 09:48:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-25 09:48:46,668 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-25 09:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-25 09:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-09-25 09:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-25 09:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-25 09:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-25 09:48:46,669 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-25 09:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-25 09:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-25 09:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-25 09:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-25 09:48:46,670 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-25 09:48:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-25 09:48:46,671 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-25 09:48:46,672 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-25 09:48:46,673 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-25 09:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-25 09:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-25 09:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-25 09:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-25 09:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-25 09:48:46,674 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-25 09:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-25 09:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-25 09:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-25 09:48:46,675 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-25 09:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-25 09:48:46,676 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-25 09:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-25 09:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-25 09:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-25 09:48:46,677 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-25 09:48:47,893 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-25 09:48:47,893 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-25 09:48:47,901 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:48:47 BoogieIcfgContainer [2020-09-25 09:48:47,901 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-25 09:48:47,902 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-25 09:48:47,902 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-25 09:48:47,906 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-25 09:48:47,907 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 25.09 09:48:45" (1/3) ... [2020-09-25 09:48:47,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f26720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:48:47, skipping insertion in model container [2020-09-25 09:48:47,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 25.09 09:48:46" (2/3) ... [2020-09-25 09:48:47,908 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@44f26720 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 25.09 09:48:47, skipping insertion in model container [2020-09-25 09:48:47,908 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 25.09 09:48:47" (3/3) ... [2020-09-25 09:48:47,911 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-09-25 09:48:47,923 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-25 09:48:47,934 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-25 09:48:47,957 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-25 09:48:47,988 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-25 09:48:47,988 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-25 09:48:47,988 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-25 09:48:47,988 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-25 09:48:47,989 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-25 09:48:47,989 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-25 09:48:47,989 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-25 09:48:47,989 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-25 09:48:48,018 INFO L276 IsEmpty]: Start isEmpty. Operand 281 states. [2020-09-25 09:48:48,036 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-09-25 09:48:48,036 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:48:48,038 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 09:48:48,038 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:48:48,046 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:48:48,046 INFO L82 PathProgramCache]: Analyzing trace with hash 459580304, now seen corresponding path program 1 times [2020-09-25 09:48:48,058 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:48:48,058 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1536762486] [2020-09-25 09:48:48,059 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:48:48,434 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:48,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:48,774 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:50,277 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:53,452 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:53,456 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 186 [2020-09-25 09:48:53,456 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 3 [2020-09-25 09:48:53,456 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5008 [2020-09-25 09:48:53,461 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:53,462 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:53,462 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 16 [2020-09-25 09:48:53,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 79 [2020-09-25 09:48:53,463 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 91 [2020-09-25 09:48:53,464 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 6 [2020-09-25 09:48:54,066 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:48:54,073 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:48:54,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:54,180 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:54,435 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:54,436 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:48:54,436 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:54,437 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 305 [2020-09-25 09:48:54,437 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:54,437 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:54,437 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:54,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:54,438 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 75 [2020-09-25 09:48:54,438 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:54,511 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:48:54,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:54,515 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:54,521 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:54,521 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:54,521 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:54,522 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 7 [2020-09-25 09:48:54,522 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:54,522 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:54,522 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:54,523 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:54,523 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:54,526 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:48:54,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:54,529 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:54,533 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:54,533 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:54,534 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:54,534 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:48:54,534 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:54,534 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:54,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:54,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:54,535 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:54,535 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:54,538 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:48:54,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:54,543 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:54,553 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:54,554 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:54,554 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:54,554 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:48:54,554 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:54,555 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:54,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:54,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:54,555 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:54,556 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:54,559 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:48:54,561 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:54,563 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:54,591 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:54,592 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:48:54,592 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:54,592 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 29 [2020-09-25 09:48:54,592 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:54,593 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:54,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:54,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:54,593 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 4 [2020-09-25 09:48:54,594 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:54,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-25 09:48:54,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:54,602 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:54,609 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:54,609 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:54,609 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:54,610 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 8 [2020-09-25 09:48:54,610 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:54,610 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:48:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:54,611 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:54,611 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:54,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-25 09:48:54,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:54,618 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:54,629 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:54,629 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:54,630 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:54,630 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:48:54,630 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:54,630 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 5 [2020-09-25 09:48:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:48:54,631 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 7 [2020-09-25 09:48:54,631 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:54,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-09-25 09:48:54,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:48:54,665 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:48:54,667 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:48:54,668 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:48:54,668 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:48:54,669 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:48:54,669 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:48:54,669 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:48:54,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:48:54,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:48:54,670 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:48:54,670 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:48:54,709 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 09:48:54,711 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1536762486] [2020-09-25 09:48:54,713 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:48:54,713 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-09-25 09:48:54,715 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295656620] [2020-09-25 09:48:54,722 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-09-25 09:48:54,723 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:48:54,741 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-09-25 09:48:54,742 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2020-09-25 09:48:54,745 INFO L87 Difference]: Start difference. First operand 281 states. Second operand 8 states. [2020-09-25 09:48:55,360 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:56,616 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:56,986 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:57,383 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:57,770 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-25 09:48:58,085 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:58,570 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:48:58,881 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-25 09:48:59,885 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:48:59,886 INFO L93 Difference]: Finished difference Result 510 states and 633 transitions. [2020-09-25 09:48:59,887 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-25 09:48:59,889 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 153 [2020-09-25 09:48:59,890 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:48:59,912 INFO L225 Difference]: With dead ends: 510 [2020-09-25 09:48:59,912 INFO L226 Difference]: Without dead ends: 339 [2020-09-25 09:48:59,919 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=65, Invalid=175, Unknown=0, NotChecked=0, Total=240 [2020-09-25 09:48:59,942 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 339 states. [2020-09-25 09:49:00,101 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 339 to 301. [2020-09-25 09:49:00,103 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 301 states. [2020-09-25 09:49:00,106 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 301 states to 301 states and 332 transitions. [2020-09-25 09:49:00,108 INFO L78 Accepts]: Start accepts. Automaton has 301 states and 332 transitions. Word has length 153 [2020-09-25 09:49:00,109 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:49:00,110 INFO L479 AbstractCegarLoop]: Abstraction has 301 states and 332 transitions. [2020-09-25 09:49:00,110 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-09-25 09:49:00,110 INFO L276 IsEmpty]: Start isEmpty. Operand 301 states and 332 transitions. [2020-09-25 09:49:00,117 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-09-25 09:49:00,117 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:49:00,118 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-25 09:49:00,118 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-25 09:49:00,118 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:49:00,119 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:49:00,119 INFO L82 PathProgramCache]: Analyzing trace with hash 55917288, now seen corresponding path program 1 times [2020-09-25 09:49:00,119 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:49:00,120 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [355821894] [2020-09-25 09:49:00,120 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:49:00,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:00,245 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:00,570 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:00,570 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 207 [2020-09-25 09:49:00,571 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:00,571 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 383 [2020-09-25 09:49:00,571 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:00,571 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:00,571 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 153 [2020-09-25 09:49:00,572 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 8 [2020-09-25 09:49:00,572 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:00,850 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-25 09:49:00,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-25 09:49:00,860 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:00,872 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:00,982 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:00,982 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 85 [2020-09-25 09:49:00,983 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:00,983 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 118 [2020-09-25 09:49:00,983 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:00,983 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:00,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:00,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:00,984 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:00,985 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:01,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-25 09:49:01,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:01,079 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:01,088 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:01,088 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:01,088 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:01,088 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 12 [2020-09-25 09:49:01,089 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:01,089 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:01,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:01,089 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:01,090 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:01,091 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:01,092 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-25 09:49:01,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:01,094 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:01,103 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:01,104 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:01,104 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:01,105 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 10 [2020-09-25 09:49:01,105 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:01,105 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:01,105 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:01,106 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:01,106 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:01,108 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-25 09:49:01,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:01,110 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:01,116 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:01,116 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:01,116 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:01,116 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 6 [2020-09-25 09:49:01,117 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:01,117 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:01,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:01,117 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:01,118 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:01,118 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:01,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-25 09:49:01,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:01,121 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:01,124 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:01,124 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 8 [2020-09-25 09:49:01,125 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:01,125 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 3 [2020-09-25 09:49:01,125 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:01,125 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:01,126 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:01,126 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:01,134 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-25 09:49:01,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:01,136 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:01,140 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:01,141 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 10 [2020-09-25 09:49:01,141 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:01,141 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 5 [2020-09-25 09:49:01,141 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:01,142 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:01,142 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:01,143 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:01,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-25 09:49:01,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:01,155 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:01,159 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:01,160 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 9 [2020-09-25 09:49:01,160 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:01,160 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 4 [2020-09-25 09:49:01,161 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:01,161 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:01,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 2 [2020-09-25 09:49:01,161 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 2 [2020-09-25 09:49:01,162 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 2 [2020-09-25 09:49:01,162 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:01,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-25 09:49:01,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:01,166 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:01,168 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:01,168 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:01,168 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:01,169 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:49:01,169 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:01,169 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:01,171 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:01,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:49:01,172 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:01,173 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 3 [2020-09-25 09:49:01,174 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-09-25 09:49:01,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:01,176 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:01,178 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:01,178 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:01,179 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:01,179 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:49:01,179 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:01,179 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:01,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:01,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:49:01,180 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:01,180 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:01,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-09-25 09:49:01,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-25 09:49:01,184 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-25 09:49:01,186 FATAL L256 erpolLogProxyWrapper]: Timeout: 5000 [2020-09-25 09:49:01,186 FATAL L256 erpolLogProxyWrapper]: Cardinality of Constraint set: 11 [2020-09-25 09:49:01,186 FATAL L256 erpolLogProxyWrapper]: Number of enumerated Muses: 1 [2020-09-25 09:49:01,186 FATAL L256 erpolLogProxyWrapper]: Time needed for enumeration: 2 [2020-09-25 09:49:01,187 FATAL L256 erpolLogProxyWrapper]: Heuristic: SMALLESTAMONGWIDE [2020-09-25 09:49:01,187 FATAL L256 erpolLogProxyWrapper]: Tolerance: 0.1 [2020-09-25 09:49:01,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has size: 1 [2020-09-25 09:49:01,187 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has depth: 8 [2020-09-25 09:49:01,188 FATAL L256 erpolLogProxyWrapper]: Chosen Mus has width: 1 [2020-09-25 09:49:01,188 FATAL L256 erpolLogProxyWrapper]: Time needed for Heuristics: 1 [2020-09-25 09:49:01,227 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 09:49:01,228 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [355821894] [2020-09-25 09:49:01,229 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-25 09:49:01,229 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-25 09:49:01,229 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [508776223] [2020-09-25 09:49:01,233 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-25 09:49:01,233 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-25 09:49:01,233 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-25 09:49:01,234 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-25 09:49:01,234 INFO L87 Difference]: Start difference. First operand 301 states and 332 transitions. Second operand 6 states. [2020-09-25 09:49:01,717 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-25 09:49:03,646 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-25 09:49:03,646 INFO L93 Difference]: Finished difference Result 840 states and 1031 transitions. [2020-09-25 09:49:03,647 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-25 09:49:03,647 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 172 [2020-09-25 09:49:03,648 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-25 09:49:03,655 INFO L225 Difference]: With dead ends: 840 [2020-09-25 09:49:03,655 INFO L226 Difference]: Without dead ends: 649 [2020-09-25 09:49:03,660 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-25 09:49:03,664 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 649 states. [2020-09-25 09:49:03,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 649 to 463. [2020-09-25 09:49:03,794 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2020-09-25 09:49:03,801 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 521 transitions. [2020-09-25 09:49:03,803 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 521 transitions. Word has length 172 [2020-09-25 09:49:03,806 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-25 09:49:03,806 INFO L479 AbstractCegarLoop]: Abstraction has 463 states and 521 transitions. [2020-09-25 09:49:03,806 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-25 09:49:03,806 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 521 transitions. [2020-09-25 09:49:03,820 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-09-25 09:49:03,821 INFO L414 BasicCegarLoop]: Found error trace [2020-09-25 09:49:03,821 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] [2020-09-25 09:49:03,822 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-25 09:49:03,822 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-25 09:49:03,822 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-25 09:49:03,822 INFO L82 PathProgramCache]: Analyzing trace with hash 232069563, now seen corresponding path program 1 times [2020-09-25 09:49:03,822 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-25 09:49:03,823 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1971180530] [2020-09-25 09:49:03,824 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-25 09:49:03,891 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-25 09:49:03,902 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-25 09:49:03,902 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-25 09:49:03,908 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-25 09:49:03,948 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 25.09 09:49:03 BoogieIcfgContainer [2020-09-25 09:49:03,948 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-25 09:49:03,952 INFO L168 Benchmark]: Toolchain (without parser) took 18243.75 ms. Allocated memory was 145.2 MB in the beginning and 460.8 MB in the end (delta: 315.6 MB). Free memory was 103.0 MB in the beginning and 120.0 MB in the end (delta: -16.9 MB). Peak memory consumption was 298.7 MB. Max. memory is 7.1 GB. [2020-09-25 09:49:03,954 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-25 09:49:03,955 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.92 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 102.4 MB in the beginning and 173.6 MB in the end (delta: -71.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-09-25 09:49:03,957 INFO L168 Benchmark]: Boogie Preprocessor took 96.77 ms. Allocated memory is still 205.0 MB. Free memory was 173.6 MB in the beginning and 169.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-09-25 09:49:03,959 INFO L168 Benchmark]: RCFGBuilder took 1348.69 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 169.6 MB in the beginning and 179.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. [2020-09-25 09:49:03,968 INFO L168 Benchmark]: TraceAbstraction took 16046.51 ms. Allocated memory was 237.0 MB in the beginning and 460.8 MB in the end (delta: 223.9 MB). Free memory was 179.5 MB in the beginning and 120.0 MB in the end (delta: 59.6 MB). Peak memory consumption was 283.4 MB. Max. memory is 7.1 GB. [2020-09-25 09:49:03,979 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 742.92 ms. Allocated memory was 145.2 MB in the beginning and 205.0 MB in the end (delta: 59.8 MB). Free memory was 102.4 MB in the beginning and 173.6 MB in the end (delta: -71.3 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 96.77 ms. Allocated memory is still 205.0 MB. Free memory was 173.6 MB in the beginning and 169.6 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1348.69 ms. Allocated memory was 205.0 MB in the beginning and 237.0 MB in the end (delta: 32.0 MB). Free memory was 169.6 MB in the beginning and 179.5 MB in the end (delta: -10.0 MB). Peak memory consumption was 82.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16046.51 ms. Allocated memory was 237.0 MB in the beginning and 460.8 MB in the end (delta: 223.9 MB). Free memory was 179.5 MB in the beginning and 120.0 MB in the end (delta: 59.6 MB). Peak memory consumption was 283.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L306] int waterLevel = 1; [L307] int methaneLevelCritical = 0; [L593] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L790] int cleanupTimeShifts = 4; [L863] int retValue_acc ; [L864] int tmp ; [L868] FCALL select_helpers() [L869] FCALL select_features() [L870] CALL, EXPR valid_product() [L415] int retValue_acc ; [L418] retValue_acc = 1 [L419] return (retValue_acc); [L870] RET, EXPR valid_product() [L870] tmp = valid_product() [L872] COND TRUE \read(tmp) [L874] FCALL setup() [L875] CALL runTest() [L857] CALL test() [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] splverifierCounter = 0 [L94] COND TRUE 1 [L96] COND TRUE splverifierCounter < 4 [L102] tmp = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp) [L106] CALL waterRise() [L324] COND TRUE waterLevel < 2 [L325] waterLevel = waterLevel + 1 [L106] RET waterRise() [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND TRUE \read(tmp___2) [L126] CALL startSystem() [L301] systemActive = 1 [L126] RET startSystem() [L141] CALL timeShift() [L165] COND FALSE !(\read(pumpRunning)) [L172] COND TRUE \read(systemActive) [L174] FCALL processEnvironment() [L180] CALL __utac_acc__Specification3_spec__1() [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; [L51] CALL, EXPR isMethaneLevelCritical() [L345] int retValue_acc ; [L348] retValue_acc = methaneLevelCritical [L349] return (retValue_acc); [L51] RET, EXPR isMethaneLevelCritical() [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) [L57] CALL, EXPR getWaterLevel() [L377] int retValue_acc ; [L380] retValue_acc = waterLevel [L381] return (retValue_acc); [L57] RET, EXPR getWaterLevel() [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 [L61] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L61] RET, EXPR isPumpRunning() [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) [L67] CALL __automaton_fail() [L890] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 37 procedures, 597 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 15.9s, OverallIterations: 3, TraceHistogramMax: 1, AutomataDifference: 7.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 431 SDtfs, 894 SDslu, 740 SDs, 0 SdLazy, 1475 SolverSat, 295 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 70 GetRequests, 47 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 26 ImplicationChecksByTransitivity, 3.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=463occurred in iteration=2, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 2 MinimizatonAttempts, 224 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 7.2s InterpolantComputationTime, 500 NumberOfCodeBlocks, 500 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 323 ConstructedInterpolants, 0 QuantifiedInterpolants, 128440 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 2 InterpolantComputations, 2 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...