/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_product18.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:46:34,746 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:46:34,750 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:46:34,791 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:46:34,793 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:46:34,803 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:46:34,804 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:46:34,807 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:46:34,810 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:46:34,812 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:46:34,815 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:46:34,817 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:46:34,817 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:46:34,819 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:46:34,821 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:46:34,823 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:46:34,825 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:46:34,826 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:46:34,827 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:46:34,834 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:46:34,836 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:46:34,838 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:46:34,839 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:46:34,839 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:46:34,844 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:46:34,844 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:46:34,845 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:46:34,848 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:46:34,848 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:46:34,850 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:46:34,850 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:46:34,851 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:46:34,852 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:46:34,853 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:46:34,854 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:46:34,854 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:46:34,855 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:46:34,855 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:46:34,855 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:46:34,856 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:46:34,858 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:46:34,858 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 16:46:34,907 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:46:34,907 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:46:34,909 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:46:34,909 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:46:34,909 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:46:34,910 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:46:34,910 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:46:34,910 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:46:34,911 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:46:34,911 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:46:34,912 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:46:34,912 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:46:34,912 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:46:34,913 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:46:34,913 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:46:34,913 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:46:34,913 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:46:34,914 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:46:34,914 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:46:34,914 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:46:34,914 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:46:34,914 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:46:34,915 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:46:34,915 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:46:34,915 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:46:34,915 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:46:34,915 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:46:34,915 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:46:34,916 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:46:34,916 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 16:46:35,359 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:46:35,384 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:46:35,392 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:46:35,394 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:46:35,394 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:46:35,396 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product18.cil.c [2020-09-24 16:46:35,472 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66138f174/13f6696aa5534590936135377076fe09/FLAGf769ae9af [2020-09-24 16:46:36,057 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:46:36,058 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product18.cil.c [2020-09-24 16:46:36,071 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66138f174/13f6696aa5534590936135377076fe09/FLAGf769ae9af [2020-09-24 16:46:36,311 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/66138f174/13f6696aa5534590936135377076fe09 [2020-09-24 16:46:36,326 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:46:36,332 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:46:36,333 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:46:36,333 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:46:36,338 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:46:36,339 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:46:36" (1/1) ... [2020-09-24 16:46:36,344 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@71155234 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:36, skipping insertion in model container [2020-09-24 16:46:36,344 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:46:36" (1/1) ... [2020-09-24 16:46:36,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:46:36,421 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:46:36,934 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:46:36,960 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:46:37,075 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:46:37,114 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:46:37,115 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:37 WrapperNode [2020-09-24 16:46:37,115 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:46:37,116 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:46:37,116 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:46:37,116 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:46:37,133 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:37" (1/1) ... [2020-09-24 16:46:37,133 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:37" (1/1) ... [2020-09-24 16:46:37,154 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:37" (1/1) ... [2020-09-24 16:46:37,155 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:37" (1/1) ... [2020-09-24 16:46:37,188 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:37" (1/1) ... [2020-09-24 16:46:37,207 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:37" (1/1) ... [2020-09-24 16:46:37,215 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:37" (1/1) ... [2020-09-24 16:46:37,236 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:46:37,236 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:46:37,237 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:46:37,237 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:46:37,239 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:37" (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 16:46:37,340 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:46:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:46:37,341 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:46:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:46:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:46:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:46:37,342 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:46:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:46:37,343 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:46:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:46:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:46:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 16:46:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:46:37,344 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:46:37,345 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:46:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:46:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:46:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:46:37,346 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:46:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:46:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:46:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:46:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:46:37,347 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:46:37,348 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:46:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:46:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:46:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:46:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:46:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 16:46:37,349 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:46:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:46:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:46:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:46:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:46:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:46:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:46:37,350 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:46:37,351 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:46:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:46:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:46:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:46:37,351 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:46:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:46:37,352 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:46:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 16:46:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:46:37,353 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:46:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:46:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:46:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:46:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:46:37,354 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:46:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:46:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:46:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 16:46:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:46:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:46:37,355 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:46:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:46:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:46:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:46:37,356 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:46:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:46:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:46:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:46:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:46:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:46:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:46:37,357 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:46:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:46:37,358 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:46:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:46:37,359 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:46:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:46:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:46:37,360 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:46:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:46:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:46:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:46:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:46:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:46:37,361 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:46:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:46:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:46:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:46:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:46:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:46:37,362 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:46:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:46:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:46:37,363 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:46:38,482 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:46:38,482 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:46:38,496 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:46:38 BoogieIcfgContainer [2020-09-24 16:46:38,496 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:46:38,498 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:46:38,498 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:46:38,503 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:46:38,504 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:46:36" (1/3) ... [2020-09-24 16:46:38,505 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f425490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:46:38, skipping insertion in model container [2020-09-24 16:46:38,505 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:37" (2/3) ... [2020-09-24 16:46:38,506 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f425490 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:46:38, skipping insertion in model container [2020-09-24 16:46:38,506 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:46:38" (3/3) ... [2020-09-24 16:46:38,509 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product18.cil.c [2020-09-24 16:46:38,521 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:46:38,536 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:46:38,558 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:46:38,599 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:46:38,599 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:46:38,599 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:46:38,599 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:46:38,600 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:46:38,600 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:46:38,600 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:46:38,600 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:46:38,638 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states. [2020-09-24 16:46:38,663 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 16:46:38,664 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:46:38,666 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 16:46:38,666 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:46:38,674 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:46:38,675 INFO L82 PathProgramCache]: Analyzing trace with hash -1028134006, now seen corresponding path program 1 times [2020-09-24 16:46:38,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:46:38,689 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1031382198] [2020-09-24 16:46:38,690 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:46:39,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:46:39,182 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:39,407 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:40,927 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:41,958 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:42,612 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:43,978 FATAL L256 erpolLogProxyWrapper]: Now shrinking...