/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_product22.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-c90d42b [2020-09-24 16:46:46,945 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-24 16:46:46,949 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-24 16:46:46,988 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-24 16:46:46,989 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-24 16:46:47,004 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-24 16:46:47,006 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-24 16:46:47,010 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-24 16:46:47,017 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-24 16:46:47,020 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-24 16:46:47,021 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-24 16:46:47,023 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-24 16:46:47,023 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-24 16:46:47,026 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-24 16:46:47,029 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-24 16:46:47,031 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-24 16:46:47,032 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-24 16:46:47,033 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-24 16:46:47,035 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-24 16:46:47,043 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-24 16:46:47,045 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-24 16:46:47,046 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-24 16:46:47,048 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-24 16:46:47,048 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-24 16:46:47,062 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-24 16:46:47,062 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-24 16:46:47,062 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-24 16:46:47,063 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-24 16:46:47,069 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-24 16:46:47,070 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-24 16:46:47,071 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-24 16:46:47,072 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-24 16:46:47,076 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-24 16:46:47,076 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-24 16:46:47,077 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-24 16:46:47,078 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-24 16:46:47,079 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-24 16:46:47,079 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-24 16:46:47,080 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-24 16:46:47,081 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-24 16:46:47,082 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-24 16:46:47,083 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 16:46:47,130 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-24 16:46:47,131 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-24 16:46:47,133 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-09-24 16:46:47,133 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-09-24 16:46:47,134 INFO L138 SettingsManager]: * Use SBE=true [2020-09-24 16:46:47,134 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-24 16:46:47,134 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-24 16:46:47,135 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-24 16:46:47,135 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-24 16:46:47,135 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-24 16:46:47,136 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-24 16:46:47,136 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-24 16:46:47,136 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-24 16:46:47,137 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-24 16:46:47,137 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-24 16:46:47,137 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-24 16:46:47,138 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-24 16:46:47,138 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-24 16:46:47,138 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-09-24 16:46:47,138 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-24 16:46:47,139 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-24 16:46:47,139 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-24 16:46:47,139 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-24 16:46:47,140 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-09-24 16:46:47,140 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-09-24 16:46:47,140 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-09-24 16:46:47,140 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-09-24 16:46:47,140 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-24 16:46:47,141 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-09-24 16:46:47,141 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 16:46:47,610 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-24 16:46:47,628 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-24 16:46:47,632 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-24 16:46:47,634 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-24 16:46:47,635 INFO L275 PluginConnector]: CDTParser initialized [2020-09-24 16:46:47,636 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product22.cil.c [2020-09-24 16:46:47,708 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5808b838b/60ea62239696448581b3f17f719317ab/FLAG2c4effd7f [2020-09-24 16:46:48,322 INFO L306 CDTParser]: Found 1 translation units. [2020-09-24 16:46:48,323 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec2_product22.cil.c [2020-09-24 16:46:48,345 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5808b838b/60ea62239696448581b3f17f719317ab/FLAG2c4effd7f [2020-09-24 16:46:48,607 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/5808b838b/60ea62239696448581b3f17f719317ab [2020-09-24 16:46:48,620 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-24 16:46:48,625 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-24 16:46:48,626 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-24 16:46:48,627 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-24 16:46:48,631 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-24 16:46:48,632 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:46:48" (1/1) ... [2020-09-24 16:46:48,637 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1f6f757b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:48, skipping insertion in model container [2020-09-24 16:46:48,637 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.09 04:46:48" (1/1) ... [2020-09-24 16:46:48,646 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-24 16:46:48,698 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-24 16:46:49,154 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:46:49,175 INFO L203 MainTranslator]: Completed pre-run [2020-09-24 16:46:49,323 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-24 16:46:49,359 INFO L208 MainTranslator]: Completed translation [2020-09-24 16:46:49,359 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:49 WrapperNode [2020-09-24 16:46:49,360 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-24 16:46:49,360 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-24 16:46:49,361 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-24 16:46:49,361 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-24 16:46:49,378 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:49" (1/1) ... [2020-09-24 16:46:49,379 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:49" (1/1) ... [2020-09-24 16:46:49,400 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:49" (1/1) ... [2020-09-24 16:46:49,401 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:49" (1/1) ... [2020-09-24 16:46:49,434 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:49" (1/1) ... [2020-09-24 16:46:49,446 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:49" (1/1) ... [2020-09-24 16:46:49,452 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:49" (1/1) ... [2020-09-24 16:46:49,460 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-24 16:46:49,460 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-24 16:46:49,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-24 16:46:49,461 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-24 16:46:49,463 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:49" (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 16:46:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-24 16:46:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-24 16:46:49,534 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-24 16:46:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-24 16:46:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-24 16:46:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-24 16:46:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-24 16:46:49,535 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-24 16:46:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-24 16:46:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-24 16:46:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-24 16:46:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-24 16:46:49,536 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-24 16:46:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-24 16:46:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-24 16:46:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-24 16:46:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 16:46:49,537 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-24 16:46:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-24 16:46:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-24 16:46:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-24 16:46:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-24 16:46:49,538 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-24 16:46:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-09-24 16:46:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-24 16:46:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-24 16:46:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-24 16:46:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:46:49,539 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:46:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-24 16:46:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-24 16:46:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-24 16:46:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-24 16:46:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-24 16:46:49,540 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-24 16:46:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-09-24 16:46:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-24 16:46:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-24 16:46:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-24 16:46:49,541 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-24 16:46:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-24 16:46:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-24 16:46:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-24 16:46:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-24 16:46:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-24 16:46:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-24 16:46:49,542 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-24 16:46:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-24 16:46:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-24 16:46:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-24 16:46:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-24 16:46:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-24 16:46:49,543 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-24 16:46:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-24 16:46:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-24 16:46:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-24 16:46:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-24 16:46:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-24 16:46:49,544 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-24 16:46:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-24 16:46:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-24 16:46:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-24 16:46:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-24 16:46:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-24 16:46:49,545 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-24 16:46:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-24 16:46:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-24 16:46:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2020-09-24 16:46:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-24 16:46:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-24 16:46:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-24 16:46:49,546 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-24 16:46:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-24 16:46:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-24 16:46:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-24 16:46:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-24 16:46:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-24 16:46:49,547 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-09-24 16:46:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-24 16:46:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-24 16:46:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-24 16:46:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-24 16:46:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2020-09-24 16:46:49,548 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-24 16:46:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-24 16:46:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-09-24 16:46:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-09-24 16:46:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-24 16:46:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-24 16:46:49,549 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-24 16:46:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-24 16:46:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-24 16:46:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-24 16:46:49,550 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-24 16:46:50,766 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-24 16:46:50,767 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-24 16:46:50,774 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:46:50 BoogieIcfgContainer [2020-09-24 16:46:50,774 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-24 16:46:50,776 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-24 16:46:50,776 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-24 16:46:50,785 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-24 16:46:50,786 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.09 04:46:48" (1/3) ... [2020-09-24 16:46:50,787 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9e6ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:46:50, skipping insertion in model container [2020-09-24 16:46:50,787 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.09 04:46:49" (2/3) ... [2020-09-24 16:46:50,788 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@f9e6ad3 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.09 04:46:50, skipping insertion in model container [2020-09-24 16:46:50,788 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.09 04:46:50" (3/3) ... [2020-09-24 16:46:50,791 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product22.cil.c [2020-09-24 16:46:50,803 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-24 16:46:50,816 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-24 16:46:50,841 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-24 16:46:50,887 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-24 16:46:50,888 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-24 16:46:50,888 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-24 16:46:50,888 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-24 16:46:50,888 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-24 16:46:50,888 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-24 16:46:50,889 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-24 16:46:50,889 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-24 16:46:50,927 INFO L276 IsEmpty]: Start isEmpty. Operand 308 states. [2020-09-24 16:46:50,962 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-09-24 16:46:50,962 INFO L414 BasicCegarLoop]: Found error trace [2020-09-24 16:46:50,964 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 16:46:50,964 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-24 16:46:50,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-24 16:46:50,975 INFO L82 PathProgramCache]: Analyzing trace with hash -1254916624, now seen corresponding path program 1 times [2020-09-24 16:46:50,988 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-24 16:46:50,989 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [430236222] [2020-09-24 16:46:50,989 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-24 16:46:51,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-24 16:46:51,560 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:51,730 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:53,295 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:54,288 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:54,577 FATAL L256 erpolLogProxyWrapper]: Now shrinking... [2020-09-24 16:46:56,316 FATAL L256 erpolLogProxyWrapper]: Now shrinking...