/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 log-additional-information=true -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec2_product21.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:46:43,595 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:46:43,599 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:46:43,624 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:46:43,625 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:46:43,626 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:46:43,627 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:46:43,629 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:46:43,630 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:46:43,631 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:46:43,632 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:46:43,633 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:46:43,634 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:46:43,635 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:46:43,636 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:46:43,637 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:46:43,638 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:46:43,639 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:46:43,641 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:46:43,643 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:46:43,644 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:46:43,645 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:46:43,649 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:46:43,650 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:46:43,653 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:46:43,653 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:46:43,653 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:46:43,654 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:46:43,655 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:46:43,656 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:46:43,656 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:46:43,657 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:46:43,658 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:46:43,659 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:46:43,660 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:46:43,660 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:46:43,661 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:46:43,661 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:46:43,661 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:46:43,662 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:46:43,663 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:46:43,664 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 [2020-09-24 16:46:43,689 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:46:43,690 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:46:43,691 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:46:43,691 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:46:43,691 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:46:43,692 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:46:43,692 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:46:43,692 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:46:43,692 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:46:43,692 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:46:43,693 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:46:43,693 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:46:43,693 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:46:43,693 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:46:43,693 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:46:43,694 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:46:43,694 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:46:43,694 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:46:43,694 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:46:43,694 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:46:43,695 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:46:43,695 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:46:43,695 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:46:43,695 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:46:43,696 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:46:43,696 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:46:43,696 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:46:43,696 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:46:43,696 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:46:43,696 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;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;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;log-additional-information=true; [2020-09-24 16:46:44,146 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:46:44,166 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:46:44,170 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:46:44,171 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:46:44,173 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:46:44,175 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product21.cil.c [2020-09-24 16:46:44,252 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03d6ae9a3/e7c489811fc7489b892c9f5d06b42504/FLAG2eb426f98 [2020-09-24 16:46:44,879 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:46:44,880 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product21.cil.c [2020-09-24 16:46:44,891 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03d6ae9a3/e7c489811fc7489b892c9f5d06b42504/FLAG2eb426f98 [2020-09-24 16:46:45,108 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/03d6ae9a3/e7c489811fc7489b892c9f5d06b42504 [2020-09-24 16:46:45,118 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:46:45,124 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:46:45,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:46:45,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:46:45,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:46:45,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:46:45" (1/1) ... [2020-09-24 16:46:45,134 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3ecced43 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:45, skipping insertion in model container [2020-09-24 16:46:45,134 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:46:45" (1/1) ... [2020-09-24 16:46:45,145 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:46:45,198 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:46:45,605 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:46:45,621 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:46:45,798 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:46:45,839 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:46:45,839 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:45 WrapperNode [2020-09-24 16:46:45,840 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:46:45,840 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:46:45,841 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:46:45,841 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:46:45,854 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:45" (1/1) ... [2020-09-24 16:46:45,855 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:45" (1/1) ... [2020-09-24 16:46:45,874 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:45" (1/1) ... [2020-09-24 16:46:45,875 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:45" (1/1) ... [2020-09-24 16:46:45,912 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:45" (1/1) ... [2020-09-24 16:46:45,930 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:45" (1/1) ... [2020-09-24 16:46:45,941 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:45" (1/1) ... [2020-09-24 16:46:45,949 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:46:45,949 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:46:45,950 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:46:45,950 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:46:45,951 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:45" (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 [2020-09-24 16:46:46,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:46:46,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:46:46,035 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:46:46,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:46:46,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:46:46,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:46:46,036 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:46:46,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:46:46,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:46:46,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:46:46,037 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:46:46,037 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:46:46,038 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:46:46,038 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:46:46,038 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:46:46,038 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:46:46,038 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:46:46,039 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:46:46,039 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:46:46,039 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:46:46,039 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:46:46,040 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:46:46,040 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 16:46:46,040 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:46:46,040 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:46:46,040 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:46:46,040 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:46:46,041 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:46:46,041 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:46:46,041 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:46:46,041 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 16:46:46,041 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:46:46,041 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:46:46,041 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:46:46,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:46:46,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:46:46,042 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:46:46,042 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 16:46:46,042 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:46:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:46:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:46:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:46:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:46:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:46:46,043 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:46:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:46:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:46:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:46:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:46:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:46:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:46:46,044 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:46:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:46:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:46:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:46:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:46:46,045 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:46:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:46:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:46:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:46:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:46:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:46:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:46:46,046 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:46:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:46:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:46:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:46:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:46:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:46:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:46:46,047 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:46:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:46:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:46:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:46:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:46:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:46:46,048 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:46:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:46:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:46:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:46:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 16:46:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:46:46,049 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:46:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:46:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:46:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:46:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 16:46:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 16:46:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:46:46,050 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:46:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:46:46,051 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:46:47,318 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:46:47,318 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:46:47,330 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:46:47 BoogieIcfgContainer [2020-09-24 16:46:47,331 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:46:47,333 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:46:47,333 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:46:47,337 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:46:47,337 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:46:45" (1/3) ... [2020-09-24 16:46:47,338 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ad4e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:46:47, skipping insertion in model container [2020-09-24 16:46:47,338 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:45" (2/3) ... [2020-09-24 16:46:47,339 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@75ad4e65 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:46:47, skipping insertion in model container [2020-09-24 16:46:47,339 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:46:47" (3/3) ... [2020-09-24 16:46:47,341 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product21.cil.c [2020-09-24 16:46:47,352 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:46:47,361 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:46:47,379 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:46:47,410 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:46:47,411 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:46:47,411 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:46:47,411 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:46:47,411 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:46:47,411 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:46:47,411 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:46:47,411 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:46:47,439 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-09-24 16:46:47,456 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 16:46:47,456 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:46:47,458 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] [2020-09-24 16:46:47,458 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:46:47,465 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:46:47,466 INFO L82 PathProgramCache]: Analyzing trace with hash -106579174, now seen corresponding path program 1 times [2020-09-24 16:46:47,477 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:46:47,477 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [152827515] [2020-09-24 16:46:47,478 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:46:47,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:46:47,965 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:48,160 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:48,626 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:49,672 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:50,658 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:54,643 FATAL L256 erpolLogProxyWrapper]: Now shrinking...