/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data --traceabstraction.trace.refinement.strategy FIXED_PREFERENCES --traceabstraction.compute.interpolants.along.a.counterexample FPandBPonlyIfFpWasNotPerfect -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.assert.codeblocks SMT_FEATURE_HEURISTIC --traceabstraction.assert.codeblocks.term.scoring.heuristic NUM_VARIABLES --traceabstraction.assert.codeblocks.term.scoring.heuristic.partitioning.strategy FIXED_NUM_PARTITIONS --traceabstraction.assert.codeblocks.term.scoring.heuristic.number.of.partitions 2 -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-d623d84 [2020-07-21 15:40:59,778 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-21 15:40:59,781 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-21 15:40:59,799 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-21 15:40:59,799 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-21 15:40:59,801 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-21 15:40:59,803 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-21 15:40:59,813 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-21 15:40:59,818 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-21 15:40:59,821 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-21 15:40:59,822 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-21 15:40:59,824 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-21 15:40:59,824 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-21 15:40:59,826 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-21 15:40:59,828 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-21 15:40:59,829 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-21 15:40:59,831 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-21 15:40:59,832 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-21 15:40:59,833 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-21 15:40:59,837 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-21 15:40:59,843 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-21 15:40:59,847 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-21 15:40:59,849 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-21 15:40:59,849 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-21 15:40:59,852 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-21 15:40:59,852 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-21 15:40:59,852 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-21 15:40:59,855 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-21 15:40:59,855 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-21 15:40:59,857 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-21 15:40:59,857 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-21 15:40:59,859 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-21 15:40:59,860 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-21 15:40:59,860 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-21 15:40:59,861 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-21 15:40:59,861 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-21 15:40:59,862 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-21 15:40:59,862 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-21 15:40:59,862 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-21 15:40:59,863 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-21 15:40:59,864 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-21 15:40:59,865 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-21 15:40:59,879 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-21 15:40:59,879 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-21 15:40:59,880 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-21 15:40:59,880 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-21 15:40:59,881 INFO L138 SettingsManager]: * Use SBE=true [2020-07-21 15:40:59,881 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-21 15:40:59,881 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-21 15:40:59,881 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-21 15:40:59,881 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-21 15:40:59,881 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-21 15:40:59,882 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-21 15:40:59,882 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-21 15:40:59,882 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-21 15:40:59,882 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-21 15:40:59,882 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-21 15:40:59,882 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-21 15:40:59,883 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-21 15:40:59,883 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-21 15:40:59,883 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-21 15:40:59,883 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-21 15:40:59,883 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-21 15:40:59,884 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-21 15:40:59,884 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-21 15:40:59,884 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-21 15:40:59,884 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-21 15:40:59,884 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-21 15:40:59,885 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:40:59,885 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-21 15:40:59,885 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-21 15:40:59,885 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 -> FPandBPonlyIfFpWasNotPerfect Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks -> SMT_FEATURE_HEURISTIC Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic -> NUM_VARIABLES Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic Partitioning Strategy -> FIXED_NUM_PARTITIONS Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Assert CodeBlocks Term Scoring Heuristic number of partitions -> 2 [2020-07-21 15:41:00,193 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-21 15:41:00,207 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-21 15:41:00,211 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-21 15:41:00,212 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-21 15:41:00,214 INFO L275 PluginConnector]: CDTParser initialized [2020-07-21 15:41:00,215 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-07-21 15:41:00,287 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50b207f8c/98d74a08a274420c9dc8f9149f722116/FLAGe0917cc79 [2020-07-21 15:41:00,804 INFO L306 CDTParser]: Found 1 translation units. [2020-07-21 15:41:00,805 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product02.cil.c [2020-07-21 15:41:00,819 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50b207f8c/98d74a08a274420c9dc8f9149f722116/FLAGe0917cc79 [2020-07-21 15:41:01,111 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/50b207f8c/98d74a08a274420c9dc8f9149f722116 [2020-07-21 15:41:01,119 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-21 15:41:01,121 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-21 15:41:01,122 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-21 15:41:01,123 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-21 15:41:01,126 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-21 15:41:01,127 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:41:01" (1/1) ... [2020-07-21 15:41:01,130 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@57949a3b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:01, skipping insertion in model container [2020-07-21 15:41:01,130 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 21.07 03:41:01" (1/1) ... [2020-07-21 15:41:01,137 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-21 15:41:01,178 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-21 15:41:01,515 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:41:01,627 INFO L203 MainTranslator]: Completed pre-run [2020-07-21 15:41:01,706 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-21 15:41:01,747 INFO L208 MainTranslator]: Completed translation [2020-07-21 15:41:01,748 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:01 WrapperNode [2020-07-21 15:41:01,748 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-21 15:41:01,749 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-21 15:41:01,749 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-21 15:41:01,749 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-21 15:41:01,760 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:01" (1/1) ... [2020-07-21 15:41:01,760 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:01" (1/1) ... [2020-07-21 15:41:01,778 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:01" (1/1) ... [2020-07-21 15:41:01,779 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:01" (1/1) ... [2020-07-21 15:41:01,806 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:01" (1/1) ... [2020-07-21 15:41:01,815 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:01" (1/1) ... [2020-07-21 15:41:01,821 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:01" (1/1) ... [2020-07-21 15:41:01,828 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-21 15:41:01,829 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-21 15:41:01,829 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-21 15:41:01,829 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-21 15:41:01,830 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/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 [2020-07-21 15:41:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-21 15:41:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-21 15:41:01,894 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-21 15:41:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-21 15:41:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-21 15:41:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-21 15:41:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-21 15:41:01,895 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-21 15:41:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-21 15:41:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-21 15:41:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-21 15:41:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-21 15:41:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-21 15:41:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-21 15:41:01,896 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-21 15:41:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-21 15:41:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-21 15:41:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-21 15:41:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-21 15:41:01,897 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-21 15:41:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-21 15:41:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-21 15:41:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-21 15:41:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-21 15:41:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-21 15:41:01,898 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-21 15:41:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-21 15:41:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-21 15:41:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-21 15:41:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-21 15:41:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-21 15:41:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-21 15:41:01,899 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-21 15:41:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-21 15:41:01,900 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-21 15:41:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-21 15:41:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-21 15:41:01,900 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-21 15:41:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-21 15:41:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-21 15:41:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-21 15:41:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-21 15:41:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-21 15:41:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-21 15:41:01,901 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-21 15:41:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-21 15:41:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-21 15:41:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-21 15:41:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-21 15:41:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-21 15:41:01,902 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-21 15:41:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-21 15:41:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-21 15:41:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-21 15:41:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-21 15:41:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-21 15:41:01,903 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-21 15:41:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-21 15:41:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-21 15:41:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-21 15:41:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-21 15:41:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-21 15:41:01,904 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-21 15:41:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-21 15:41:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-21 15:41:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-21 15:41:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-21 15:41:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-21 15:41:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-21 15:41:01,905 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-21 15:41:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-21 15:41:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-21 15:41:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-21 15:41:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-21 15:41:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-21 15:41:01,906 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-21 15:41:01,907 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-21 15:41:01,907 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-21 15:41:01,907 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-21 15:41:01,907 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-21 15:41:01,907 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-21 15:41:01,907 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-21 15:41:01,907 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-21 15:41:01,908 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-21 15:41:02,971 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-21 15:41:02,972 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-21 15:41:02,977 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:41:02 BoogieIcfgContainer [2020-07-21 15:41:02,977 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-21 15:41:02,979 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-21 15:41:02,979 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-21 15:41:02,983 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-21 15:41:02,983 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 21.07 03:41:01" (1/3) ... [2020-07-21 15:41:02,984 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99ff612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:41:02, skipping insertion in model container [2020-07-21 15:41:02,984 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 21.07 03:41:01" (2/3) ... [2020-07-21 15:41:02,985 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@99ff612 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 21.07 03:41:02, skipping insertion in model container [2020-07-21 15:41:02,985 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 21.07 03:41:02" (3/3) ... [2020-07-21 15:41:02,987 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product02.cil.c [2020-07-21 15:41:02,998 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBPonlyIfFpWasNotPerfect Determinization: PREDICATE_ABSTRACTION [2020-07-21 15:41:03,007 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-21 15:41:03,022 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-21 15:41:03,047 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-21 15:41:03,048 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-21 15:41:03,048 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBPonlyIfFpWasNotPerfect [2020-07-21 15:41:03,048 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-21 15:41:03,048 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-21 15:41:03,048 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-21 15:41:03,049 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-21 15:41:03,049 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-21 15:41:03,072 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states. [2020-07-21 15:41:03,081 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-21 15:41:03,082 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:03,083 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] [2020-07-21 15:41:03,083 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:03,089 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:03,090 INFO L82 PathProgramCache]: Analyzing trace with hash 761454740, now seen corresponding path program 1 times [2020-07-21 15:41:03,099 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:03,100 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [560307273] [2020-07-21 15:41:03,100 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:03,493 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:03,493 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:03,500 INFO L263 TraceCheckSpWp]: Trace formula consists of 646 conjuncts, 1 conjunts are in the unsatisfiable core [2020-07-21 15:41:03,509 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:03,546 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:03,546 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:03,548 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [560307273] [2020-07-21 15:41:03,549 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:03,549 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-21 15:41:03,550 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2063019060] [2020-07-21 15:41:03,555 INFO L459 AbstractCegarLoop]: Interpolant automaton has 2 states [2020-07-21 15:41:03,556 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:03,571 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2020-07-21 15:41:03,572 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:41:03,574 INFO L87 Difference]: Start difference. First operand 137 states. Second operand 2 states. [2020-07-21 15:41:03,613 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:03,614 INFO L93 Difference]: Finished difference Result 182 states and 227 transitions. [2020-07-21 15:41:03,614 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2020-07-21 15:41:03,615 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2020-07-21 15:41:03,616 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:03,627 INFO L225 Difference]: With dead ends: 182 [2020-07-21 15:41:03,628 INFO L226 Difference]: Without dead ends: 91 [2020-07-21 15:41:03,633 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 51 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2020-07-21 15:41:03,652 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 91 states. [2020-07-21 15:41:03,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 91 to 91. [2020-07-21 15:41:03,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-07-21 15:41:03,684 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 105 transitions. [2020-07-21 15:41:03,686 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 105 transitions. Word has length 52 [2020-07-21 15:41:03,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:03,687 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 105 transitions. [2020-07-21 15:41:03,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 2 states. [2020-07-21 15:41:03,687 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 105 transitions. [2020-07-21 15:41:03,691 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-21 15:41:03,691 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:03,691 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] [2020-07-21 15:41:03,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:03,906 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:03,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:03,907 INFO L82 PathProgramCache]: Analyzing trace with hash -873378410, now seen corresponding path program 1 times [2020-07-21 15:41:03,908 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:03,909 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1441416725] [2020-07-21 15:41:03,909 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:04,237 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:04,237 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:04,240 INFO L263 TraceCheckSpWp]: Trace formula consists of 647 conjuncts, 2 conjunts are in the unsatisfiable core [2020-07-21 15:41:04,244 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:04,279 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:04,279 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:04,279 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1441416725] [2020-07-21 15:41:04,280 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:04,280 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:41:04,280 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1315971379] [2020-07-21 15:41:04,282 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:41:04,282 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:04,282 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:41:04,283 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:04,283 INFO L87 Difference]: Start difference. First operand 91 states and 105 transitions. Second operand 3 states. [2020-07-21 15:41:04,299 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:04,299 INFO L93 Difference]: Finished difference Result 127 states and 145 transitions. [2020-07-21 15:41:04,300 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:41:04,300 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2020-07-21 15:41:04,300 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:04,302 INFO L225 Difference]: With dead ends: 127 [2020-07-21 15:41:04,302 INFO L226 Difference]: Without dead ends: 82 [2020-07-21 15:41:04,303 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 52 GetRequests, 51 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:04,304 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-07-21 15:41:04,312 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-07-21 15:41:04,312 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-07-21 15:41:04,314 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 93 transitions. [2020-07-21 15:41:04,314 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 93 transitions. Word has length 53 [2020-07-21 15:41:04,315 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:04,315 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 93 transitions. [2020-07-21 15:41:04,315 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:41:04,315 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 93 transitions. [2020-07-21 15:41:04,317 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-21 15:41:04,317 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:04,317 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] [2020-07-21 15:41:04,531 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:04,532 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:04,533 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:04,533 INFO L82 PathProgramCache]: Analyzing trace with hash -646748837, now seen corresponding path program 1 times [2020-07-21 15:41:04,534 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:04,534 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [799116727] [2020-07-21 15:41:04,535 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:04,834 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:04,834 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:04,838 INFO L263 TraceCheckSpWp]: Trace formula consists of 665 conjuncts, 8 conjunts are in the unsatisfiable core [2020-07-21 15:41:04,843 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:04,867 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:04,868 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:04,868 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [799116727] [2020-07-21 15:41:04,868 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:04,868 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-21 15:41:04,869 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [86813177] [2020-07-21 15:41:04,869 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-21 15:41:04,870 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:04,870 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-21 15:41:04,870 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:04,870 INFO L87 Difference]: Start difference. First operand 82 states and 93 transitions. Second operand 3 states. [2020-07-21 15:41:04,887 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:04,888 INFO L93 Difference]: Finished difference Result 140 states and 163 transitions. [2020-07-21 15:41:04,888 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-21 15:41:04,889 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 58 [2020-07-21 15:41:04,889 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:04,890 INFO L225 Difference]: With dead ends: 140 [2020-07-21 15:41:04,891 INFO L226 Difference]: Without dead ends: 82 [2020-07-21 15:41:04,892 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-21 15:41:04,892 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 82 states. [2020-07-21 15:41:04,901 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 82 to 82. [2020-07-21 15:41:04,901 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 82 states. [2020-07-21 15:41:04,903 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 82 states to 82 states and 92 transitions. [2020-07-21 15:41:04,903 INFO L78 Accepts]: Start accepts. Automaton has 82 states and 92 transitions. Word has length 58 [2020-07-21 15:41:04,903 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:04,904 INFO L479 AbstractCegarLoop]: Abstraction has 82 states and 92 transitions. [2020-07-21 15:41:04,904 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-21 15:41:04,904 INFO L276 IsEmpty]: Start isEmpty. Operand 82 states and 92 transitions. [2020-07-21 15:41:04,905 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-21 15:41:04,906 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:04,906 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] [2020-07-21 15:41:05,120 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:05,120 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:05,121 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:05,121 INFO L82 PathProgramCache]: Analyzing trace with hash 387624930, now seen corresponding path program 1 times [2020-07-21 15:41:05,122 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:05,123 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [234153378] [2020-07-21 15:41:05,123 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:05,420 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:05,420 INFO L229 tOrderPrioritization]: Conjunction of SSA is unsat [2020-07-21 15:41:05,424 INFO L263 TraceCheckSpWp]: Trace formula consists of 669 conjuncts, 14 conjunts are in the unsatisfiable core [2020-07-21 15:41:05,428 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2020-07-21 15:41:05,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-21 15:41:05,470 INFO L324 TraceCheckSpWp]: Omiting computation of backward sequence because forward sequence was already perfect [2020-07-21 15:41:05,470 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [234153378] [2020-07-21 15:41:05,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-21 15:41:05,471 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-21 15:41:05,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1820111601] [2020-07-21 15:41:05,471 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-21 15:41:05,472 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-21 15:41:05,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-21 15:41:05,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-21 15:41:05,472 INFO L87 Difference]: Start difference. First operand 82 states and 92 transitions. Second operand 6 states. [2020-07-21 15:41:05,664 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-21 15:41:05,664 INFO L93 Difference]: Finished difference Result 189 states and 226 transitions. [2020-07-21 15:41:05,665 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-21 15:41:05,665 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 61 [2020-07-21 15:41:05,665 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-21 15:41:05,669 INFO L225 Difference]: With dead ends: 189 [2020-07-21 15:41:05,670 INFO L226 Difference]: Without dead ends: 131 [2020-07-21 15:41:05,671 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=18, Invalid=38, Unknown=0, NotChecked=0, Total=56 [2020-07-21 15:41:05,671 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-07-21 15:41:05,687 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 129. [2020-07-21 15:41:05,688 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2020-07-21 15:41:05,689 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 150 transitions. [2020-07-21 15:41:05,689 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 150 transitions. Word has length 61 [2020-07-21 15:41:05,690 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-21 15:41:05,690 INFO L479 AbstractCegarLoop]: Abstraction has 129 states and 150 transitions. [2020-07-21 15:41:05,690 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-21 15:41:05,690 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 150 transitions. [2020-07-21 15:41:05,692 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-21 15:41:05,692 INFO L414 BasicCegarLoop]: Found error trace [2020-07-21 15:41:05,692 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] [2020-07-21 15:41:05,905 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:05,906 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-21 15:41:05,907 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-21 15:41:05,907 INFO L82 PathProgramCache]: Analyzing trace with hash -1045725272, now seen corresponding path program 1 times [2020-07-21 15:41:05,907 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-21 15:41:05,908 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1889941167] [2020-07-21 15:41:05,908 INFO L95 rtionOrderModulation]: Keeping assertion order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:06,362 INFO L228 tOrderPrioritization]: Assert order SMT_FEATURE_HEURISTIC (partitioning type FIXED_NUM_PARTITIONS, 2 partitions) issued 2 check-sat command(s) [2020-07-21 15:41:06,362 INFO L229 tOrderPrioritization]: Conjunction of SSA is sat [2020-07-21 15:41:06,363 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 15:41:06,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-21 15:41:06,524 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-21 15:41:06,733 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-21 15:41:06,734 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-21 15:41:06,948 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-21 15:41:07,123 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 21.07 03:41:07 BoogieIcfgContainer [2020-07-21 15:41:07,123 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-21 15:41:07,126 INFO L168 Benchmark]: Toolchain (without parser) took 6004.93 ms. Allocated memory was 138.9 MB in the beginning and 283.1 MB in the end (delta: 144.2 MB). Free memory was 102.7 MB in the beginning and 230.0 MB in the end (delta: -127.3 MB). Peak memory consumption was 118.6 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:07,127 INFO L168 Benchmark]: CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-21 15:41:07,128 INFO L168 Benchmark]: CACSL2BoogieTranslator took 626.01 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 102.3 MB in the beginning and 175.3 MB in the end (delta: -73.0 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:07,129 INFO L168 Benchmark]: Boogie Preprocessor took 80.10 ms. Allocated memory is still 203.9 MB. Free memory was 175.3 MB in the beginning and 170.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:07,130 INFO L168 Benchmark]: RCFGBuilder took 1148.49 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 170.8 MB in the beginning and 203.8 MB in the end (delta: -33.0 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:07,131 INFO L168 Benchmark]: TraceAbstraction took 4144.42 ms. Allocated memory was 237.0 MB in the beginning and 283.1 MB in the end (delta: 46.1 MB). Free memory was 203.8 MB in the beginning and 230.0 MB in the end (delta: -26.2 MB). Peak memory consumption was 121.6 MB. Max. memory is 7.1 GB. [2020-07-21 15:41:07,135 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.23 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.7 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 626.01 ms. Allocated memory was 138.9 MB in the beginning and 203.9 MB in the end (delta: 65.0 MB). Free memory was 102.3 MB in the beginning and 175.3 MB in the end (delta: -73.0 MB). Peak memory consumption was 28.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 80.10 ms. Allocated memory is still 203.9 MB. Free memory was 175.3 MB in the beginning and 170.8 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1148.49 ms. Allocated memory was 203.9 MB in the beginning and 237.0 MB in the end (delta: 33.0 MB). Free memory was 170.8 MB in the beginning and 203.8 MB in the end (delta: -33.0 MB). Peak memory consumption was 85.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 4144.42 ms. Allocated memory was 237.0 MB in the beginning and 283.1 MB in the end (delta: 46.1 MB). Free memory was 203.8 MB in the beginning and 230.0 MB in the end (delta: -26.2 MB). Peak memory consumption was 121.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 82]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L256] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L462] int pumpRunning = 0; [L463] int systemActive = 1; [L683] int cleanupTimeShifts = 4; [L779] int waterLevel = 1; [L780] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=103, \old(head)=95, \old(head)=89, \old(methaneLevelCritical)=49, \old(pumpRunning)=100, \old(systemActive)=92, \old(waterLevel)=94, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L756] int retValue_acc ; [L757] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L761] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L762] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L763] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L763] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L763] tmp = valid_product() [L765] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L767] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L768] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L750] CALL test() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L617] int splverifierCounter ; [L618] int tmp ; [L619] int tmp___0 ; [L620] int tmp___1 ; [L621] int tmp___2 ; [L624] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L626] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L628] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L634] tmp = __VERIFIER_nondet_int() [L636] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L638] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L797] COND TRUE waterLevel < 2 [L798] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L638] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L644] tmp___0 = __VERIFIER_nondet_int() [L646] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, waterLevel=2] [L654] tmp___2 = __VERIFIER_nondet_int() [L656] COND FALSE !(\read(tmp___2)) [L662] tmp___1 = __VERIFIER_nondet_int() [L664] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, tmp___0=0, tmp___1=0, tmp___2=0, waterLevel=2] [L671] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L470] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L477] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L479] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L485] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L580] int tmp ; [L581] int tmp___0 ; [L582] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L818] int retValue_acc ; [L821] retValue_acc = methaneLevelCritical [L822] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L586] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] tmp = isMethaneLevelCritical() [L588] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L592] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L850] int retValue_acc ; [L853] retValue_acc = waterLevel [L854] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=2, systemActive=1, waterLevel=2] [L592] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L592] tmp___0 = getWaterLevel() [L594] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L596] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L525] int retValue_acc ; [L528] retValue_acc = pumpRunning [L529] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L596] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, waterLevel=2] [L596] tmp___1 = isPumpRunning() [L598] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=2, tmp___1=0, waterLevel=2] [L602] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L82] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] - StatisticsResult: Ultimate Automizer benchmark data CFG has 35 procedures, 201 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 3.9s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 0.3s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 399 SDtfs, 99 SDslu, 400 SDs, 0 SdLazy, 66 SolverSat, 5 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 222 GetRequests, 214 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=137occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.0s AutomataMinimizationTime, 4 MinimizatonAttempts, 2 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.1s SsaConstructionTime, 1.2s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 289 NumberOfCodeBlocks, 289 NumberOfCodeBlocksAsserted, 10 NumberOfCheckSat, 220 ConstructedInterpolants, 0 QuantifiedInterpolants, 22838 SizeOfPredicates, 12 NumberOfNonLiveVariables, 2627 ConjunctsInSsa, 25 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...