/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.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 4 --traceabstraction.trace.refinement.strategy CAMEL_SMT_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-20 00:58:31,756 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-20 00:58:31,759 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-20 00:58:31,772 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-20 00:58:31,772 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-20 00:58:31,773 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-20 00:58:31,774 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-20 00:58:31,776 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-20 00:58:31,778 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-20 00:58:31,779 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-20 00:58:31,781 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-20 00:58:31,788 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-20 00:58:31,788 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-20 00:58:31,792 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-20 00:58:31,794 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-20 00:58:31,795 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-20 00:58:31,797 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-20 00:58:31,798 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-20 00:58:31,803 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-20 00:58:31,806 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-20 00:58:31,810 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-20 00:58:31,812 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-20 00:58:31,815 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-20 00:58:31,816 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-20 00:58:31,819 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-20 00:58:31,819 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-20 00:58:31,821 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-20 00:58:31,822 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-20 00:58:31,822 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-20 00:58:31,823 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-20 00:58:31,823 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-20 00:58:31,824 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-20 00:58:31,827 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-20 00:58:31,828 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-20 00:58:31,829 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-20 00:58:31,830 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-20 00:58:31,830 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-20 00:58:31,831 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-20 00:58:31,831 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-20 00:58:31,832 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-20 00:58:31,833 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-20 00:58:31,834 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 [2020-07-20 00:58:31,871 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-20 00:58:31,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-20 00:58:31,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-20 00:58:31,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-20 00:58:31,874 INFO L138 SettingsManager]: * Use SBE=true [2020-07-20 00:58:31,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-20 00:58:31,875 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-20 00:58:31,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-20 00:58:31,878 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-20 00:58:31,878 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-20 00:58:31,878 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-20 00:58:31,878 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-20 00:58:31,878 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-20 00:58:31,879 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-20 00:58:31,879 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-20 00:58:31,879 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-20 00:58:31,879 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-20 00:58:31,879 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-20 00:58:31,880 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-20 00:58:31,880 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-20 00:58:31,880 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-20 00:58:31,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-20 00:58:31,880 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-20 00:58:31,881 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-20 00:58:31,881 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-20 00:58:31,881 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-20 00:58:31,882 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-20 00:58:31,882 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-20 00:58:31,882 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-20 00:58:31,883 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode 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 -> 4 Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_SMT_AM [2020-07-20 00:58:32,158 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-20 00:58:32,171 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-20 00:58:32,174 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-20 00:58:32,176 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-20 00:58:32,176 INFO L275 PluginConnector]: CDTParser initialized [2020-07-20 00:58:32,177 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-07-20 00:58:32,254 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72e404555/3f14085b3e224935812da216ef05d548/FLAG525f1a9ba [2020-07-20 00:58:32,798 INFO L306 CDTParser]: Found 1 translation units. [2020-07-20 00:58:32,799 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product12.cil.c [2020-07-20 00:58:32,811 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72e404555/3f14085b3e224935812da216ef05d548/FLAG525f1a9ba [2020-07-20 00:58:33,112 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/72e404555/3f14085b3e224935812da216ef05d548 [2020-07-20 00:58:33,121 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-20 00:58:33,124 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-20 00:58:33,125 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-20 00:58:33,125 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-20 00:58:33,129 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-20 00:58:33,130 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:58:33" (1/1) ... [2020-07-20 00:58:33,133 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@f65fbdf and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:33, skipping insertion in model container [2020-07-20 00:58:33,133 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.07 12:58:33" (1/1) ... [2020-07-20 00:58:33,141 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-20 00:58:33,204 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-20 00:58:33,657 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 00:58:33,671 INFO L203 MainTranslator]: Completed pre-run [2020-07-20 00:58:33,750 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-20 00:58:33,786 INFO L208 MainTranslator]: Completed translation [2020-07-20 00:58:33,786 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:33 WrapperNode [2020-07-20 00:58:33,786 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-20 00:58:33,787 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-20 00:58:33,787 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-20 00:58:33,788 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-20 00:58:33,803 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:33" (1/1) ... [2020-07-20 00:58:33,804 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:33" (1/1) ... [2020-07-20 00:58:33,823 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:33" (1/1) ... [2020-07-20 00:58:33,824 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:33" (1/1) ... [2020-07-20 00:58:33,882 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:33" (1/1) ... [2020-07-20 00:58:33,894 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:33" (1/1) ... [2020-07-20 00:58:33,900 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:33" (1/1) ... [2020-07-20 00:58:33,907 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-20 00:58:33,908 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-20 00:58:33,908 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-20 00:58:33,908 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-20 00:58:33,909 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:33" (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 [2020-07-20 00:58:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-20 00:58:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-20 00:58:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-20 00:58:33,981 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-20 00:58:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-20 00:58:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-20 00:58:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-20 00:58:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__base [2020-07-20 00:58:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-20 00:58:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-20 00:58:33,982 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-20 00:58:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-20 00:58:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-20 00:58:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-20 00:58:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-20 00:58:33,983 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-20 00:58:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-20 00:58:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-20 00:58:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-20 00:58:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-20 00:58:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-20 00:58:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-20 00:58:33,984 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-20 00:58:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-20 00:58:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-20 00:58:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-20 00:58:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-20 00:58:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-20 00:58:33,985 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-20 00:58:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-20 00:58:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-20 00:58:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-20 00:58:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-20 00:58:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-20 00:58:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-20 00:58:33,986 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-20 00:58:33,987 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-20 00:58:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-20 00:58:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-20 00:58:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-20 00:58:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-20 00:58:33,987 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-20 00:58:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-20 00:58:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-20 00:58:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-20 00:58:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-20 00:58:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-20 00:58:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-20 00:58:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-20 00:58:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-20 00:58:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-20 00:58:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-20 00:58:33,988 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-20 00:58:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-20 00:58:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-20 00:58:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-20 00:58:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-20 00:58:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-20 00:58:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__base [2020-07-20 00:58:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-20 00:58:33,989 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-20 00:58:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-20 00:58:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-20 00:58:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-20 00:58:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-20 00:58:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-20 00:58:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-20 00:58:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-20 00:58:33,990 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-20 00:58:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-20 00:58:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-20 00:58:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-20 00:58:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-20 00:58:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-20 00:58:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-20 00:58:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-20 00:58:33,991 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-20 00:58:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-20 00:58:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-20 00:58:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-20 00:58:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-20 00:58:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-20 00:58:33,992 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-20 00:58:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-20 00:58:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-20 00:58:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-20 00:58:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-20 00:58:33,993 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-20 00:58:35,101 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-20 00:58:35,102 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-20 00:58:35,111 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:58:35 BoogieIcfgContainer [2020-07-20 00:58:35,111 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-20 00:58:35,113 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-20 00:58:35,113 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-20 00:58:35,116 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-20 00:58:35,117 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.07 12:58:33" (1/3) ... [2020-07-20 00:58:35,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1b8759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:58:35, skipping insertion in model container [2020-07-20 00:58:35,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.07 12:58:33" (2/3) ... [2020-07-20 00:58:35,118 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4b1b8759 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.07 12:58:35, skipping insertion in model container [2020-07-20 00:58:35,118 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.07 12:58:35" (3/3) ... [2020-07-20 00:58:35,120 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product12.cil.c [2020-07-20 00:58:35,131 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-20 00:58:35,139 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-20 00:58:35,152 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-20 00:58:35,174 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-20 00:58:35,175 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-20 00:58:35,175 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-20 00:58:35,175 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-20 00:58:35,175 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-20 00:58:35,176 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-20 00:58:35,176 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-20 00:58:35,176 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-20 00:58:35,199 INFO L276 IsEmpty]: Start isEmpty. Operand 154 states. [2020-07-20 00:58:35,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-20 00:58:35,208 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:35,210 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] [2020-07-20 00:58:35,210 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:35,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:35,217 INFO L82 PathProgramCache]: Analyzing trace with hash 1715921214, now seen corresponding path program 1 times [2020-07-20 00:58:35,226 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:35,227 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1771691983] [2020-07-20 00:58:35,227 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5e563439 [2020-07-20 00:58:35,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:35,879 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:35,889 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:35,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:35,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:35,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:35,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:35,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:35,957 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:58:35,958 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1771691983] [2020-07-20 00:58:35,963 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:35,963 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-20 00:58:35,964 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1790785433] [2020-07-20 00:58:35,973 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-20 00:58:35,974 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:35,993 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-20 00:58:35,994 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 00:58:35,997 INFO L87 Difference]: Start difference. First operand 154 states. Second operand 3 states. [2020-07-20 00:58:37,019 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:37,019 INFO L93 Difference]: Finished difference Result 240 states and 317 transitions. [2020-07-20 00:58:37,021 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-20 00:58:37,023 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-20 00:58:37,024 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:37,044 INFO L225 Difference]: With dead ends: 240 [2020-07-20 00:58:37,044 INFO L226 Difference]: Without dead ends: 131 [2020-07-20 00:58:37,054 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-20 00:58:37,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-07-20 00:58:37,162 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 100. [2020-07-20 00:58:37,163 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-20 00:58:37,165 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2020-07-20 00:58:37,167 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 52 [2020-07-20 00:58:37,167 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:37,167 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2020-07-20 00:58:37,168 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-20 00:58:37,168 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2020-07-20 00:58:37,171 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-20 00:58:37,172 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:37,172 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] [2020-07-20 00:58:37,172 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-20 00:58:37,172 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:37,173 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:37,173 INFO L82 PathProgramCache]: Analyzing trace with hash 1789709038, now seen corresponding path program 1 times [2020-07-20 00:58:37,173 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:37,174 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2021103148] [2020-07-20 00:58:37,174 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5e563439 [2020-07-20 00:58:37,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:37,491 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:37,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:37,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:37,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:37,533 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:58:37,533 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2021103148] [2020-07-20 00:58:37,533 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:37,534 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-20 00:58:37,534 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [464724007] [2020-07-20 00:58:37,536 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-20 00:58:37,536 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:37,536 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-20 00:58:37,536 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-20 00:58:37,536 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 4 states. [2020-07-20 00:58:37,981 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:58:38,597 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:38,597 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2020-07-20 00:58:38,598 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-20 00:58:38,598 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-20 00:58:38,599 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:38,601 INFO L225 Difference]: With dead ends: 160 [2020-07-20 00:58:38,601 INFO L226 Difference]: Without dead ends: 115 [2020-07-20 00:58:38,603 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-20 00:58:38,603 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-07-20 00:58:38,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 91. [2020-07-20 00:58:38,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-07-20 00:58:38,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2020-07-20 00:58:38,636 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 53 [2020-07-20 00:58:38,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:38,636 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2020-07-20 00:58:38,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-20 00:58:38,637 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2020-07-20 00:58:38,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-20 00:58:38,639 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:38,639 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] [2020-07-20 00:58:38,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-20 00:58:38,639 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:38,639 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:38,640 INFO L82 PathProgramCache]: Analyzing trace with hash -1277285199, now seen corresponding path program 1 times [2020-07-20 00:58:38,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:38,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [622192498] [2020-07-20 00:58:38,641 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5e563439 [2020-07-20 00:58:38,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:38,951 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:38,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:38,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:39,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:39,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:39,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:39,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:39,073 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:58:39,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [622192498] [2020-07-20 00:58:39,074 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:39,074 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-20 00:58:39,075 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1787910421] [2020-07-20 00:58:39,075 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-20 00:58:39,075 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:39,076 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-20 00:58:39,076 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-20 00:58:39,076 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand 8 states. [2020-07-20 00:58:39,489 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:58:39,816 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-20 00:58:40,053 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:40,306 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:41,040 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-20 00:58:42,246 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:42,247 INFO L93 Difference]: Finished difference Result 326 states and 401 transitions. [2020-07-20 00:58:42,248 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-20 00:58:42,248 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-20 00:58:42,248 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:42,252 INFO L225 Difference]: With dead ends: 326 [2020-07-20 00:58:42,252 INFO L226 Difference]: Without dead ends: 259 [2020-07-20 00:58:42,253 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-20 00:58:42,254 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-20 00:58:42,315 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 190. [2020-07-20 00:58:42,315 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-07-20 00:58:42,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 225 transitions. [2020-07-20 00:58:42,317 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 225 transitions. Word has length 58 [2020-07-20 00:58:42,317 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:42,317 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 225 transitions. [2020-07-20 00:58:42,317 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-20 00:58:42,317 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 225 transitions. [2020-07-20 00:58:42,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-20 00:58:42,320 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:42,320 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] [2020-07-20 00:58:42,321 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-20 00:58:42,321 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:42,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:42,321 INFO L82 PathProgramCache]: Analyzing trace with hash 2002784121, now seen corresponding path program 1 times [2020-07-20 00:58:42,322 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:42,322 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [516272738] [2020-07-20 00:58:42,322 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5e563439 [2020-07-20 00:58:42,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:42,669 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:42,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:42,701 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:42,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:42,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:42,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:42,710 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:42,711 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:42,713 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:42,729 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:42,737 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:58:42,738 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [516272738] [2020-07-20 00:58:42,738 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:42,738 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-20 00:58:42,738 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1106769676] [2020-07-20 00:58:42,739 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-20 00:58:42,739 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:42,739 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-20 00:58:42,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-20 00:58:42,740 INFO L87 Difference]: Start difference. First operand 190 states and 225 transitions. Second operand 7 states. [2020-07-20 00:58:43,145 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:58:44,147 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:44,428 WARN L193 SmtUtils]: Spent 215.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:44,672 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-20 00:58:44,922 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:58:45,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:45,261 INFO L93 Difference]: Finished difference Result 537 states and 682 transitions. [2020-07-20 00:58:45,262 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-20 00:58:45,262 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-07-20 00:58:45,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:45,267 INFO L225 Difference]: With dead ends: 537 [2020-07-20 00:58:45,268 INFO L226 Difference]: Without dead ends: 371 [2020-07-20 00:58:45,270 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-07-20 00:58:45,271 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-07-20 00:58:45,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 349. [2020-07-20 00:58:45,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-07-20 00:58:45,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 425 transitions. [2020-07-20 00:58:45,352 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 425 transitions. Word has length 61 [2020-07-20 00:58:45,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:45,353 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 425 transitions. [2020-07-20 00:58:45,353 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-20 00:58:45,353 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 425 transitions. [2020-07-20 00:58:45,356 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-20 00:58:45,356 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:45,356 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] [2020-07-20 00:58:45,357 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-20 00:58:45,357 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:45,357 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:45,357 INFO L82 PathProgramCache]: Analyzing trace with hash 1296160083, now seen corresponding path program 1 times [2020-07-20 00:58:45,358 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:45,358 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1432954045] [2020-07-20 00:58:45,358 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5e563439 [2020-07-20 00:58:45,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:45,620 WARN L193 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-20 00:58:45,633 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:45,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:45,650 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:45,652 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:45,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:45,686 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:45,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:45,689 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:45,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:45,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-20 00:58:45,707 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-20 00:58:45,708 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1432954045] [2020-07-20 00:58:45,708 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-20 00:58:45,709 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-20 00:58:45,710 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [994837222] [2020-07-20 00:58:45,711 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-20 00:58:45,712 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_SMT_AM [2020-07-20 00:58:45,712 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-20 00:58:45,712 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-20 00:58:45,713 INFO L87 Difference]: Start difference. First operand 349 states and 425 transitions. Second operand 5 states. [2020-07-20 00:58:46,080 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-20 00:58:46,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-20 00:58:46,620 INFO L93 Difference]: Finished difference Result 642 states and 802 transitions. [2020-07-20 00:58:46,621 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-20 00:58:46,621 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-07-20 00:58:46,621 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-20 00:58:46,624 INFO L225 Difference]: With dead ends: 642 [2020-07-20 00:58:46,624 INFO L226 Difference]: Without dead ends: 317 [2020-07-20 00:58:46,626 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 28 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=18, Invalid=24, Unknown=0, NotChecked=0, Total=42 [2020-07-20 00:58:46,627 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-20 00:58:46,681 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 303. [2020-07-20 00:58:46,681 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-07-20 00:58:46,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 354 transitions. [2020-07-20 00:58:46,684 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 354 transitions. Word has length 65 [2020-07-20 00:58:46,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-20 00:58:46,684 INFO L479 AbstractCegarLoop]: Abstraction has 303 states and 354 transitions. [2020-07-20 00:58:46,684 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-20 00:58:46,684 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 354 transitions. [2020-07-20 00:58:46,686 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-20 00:58:46,686 INFO L414 BasicCegarLoop]: Found error trace [2020-07-20 00:58:46,686 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] [2020-07-20 00:58:46,687 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-20 00:58:46,687 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-20 00:58:46,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-20 00:58:46,687 INFO L82 PathProgramCache]: Analyzing trace with hash -423236225, now seen corresponding path program 1 times [2020-07-20 00:58:46,688 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_SMT_AM [2020-07-20 00:58:46,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1205632172] [2020-07-20 00:58:46,688 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@5e563439 [2020-07-20 00:58:46,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 00:58:46,742 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 00:58:46,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-20 00:58:46,826 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-20 00:58:46,906 INFO L174 FreeRefinementEngine]: Strategy CAMEL_SMT_AM found a feasible trace [2020-07-20 00:58:46,906 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-20 00:58:46,906 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-20 00:58:47,029 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.07 12:58:47 BoogieIcfgContainer [2020-07-20 00:58:47,029 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-20 00:58:47,031 INFO L168 Benchmark]: Toolchain (without parser) took 13908.75 ms. Allocated memory was 138.9 MB in the beginning and 467.7 MB in the end (delta: 328.7 MB). Free memory was 102.4 MB in the beginning and 310.0 MB in the end (delta: -207.6 MB). Peak memory consumption was 121.1 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:47,032 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2020-07-20 00:58:47,033 INFO L168 Benchmark]: CACSL2BoogieTranslator took 661.65 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 172.3 MB in the end (delta: -70.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:47,034 INFO L168 Benchmark]: Boogie Preprocessor took 120.15 ms. Allocated memory is still 203.4 MB. Free memory was 172.3 MB in the beginning and 166.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:47,035 INFO L168 Benchmark]: RCFGBuilder took 1203.45 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 166.4 MB in the beginning and 200.9 MB in the end (delta: -34.6 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:47,035 INFO L168 Benchmark]: TraceAbstraction took 11916.20 ms. Allocated memory was 237.0 MB in the beginning and 467.7 MB in the end (delta: 230.7 MB). Free memory was 199.5 MB in the beginning and 310.0 MB in the end (delta: -110.5 MB). Peak memory consumption was 120.2 MB. Max. memory is 7.1 GB. [2020-07-20 00:58:47,039 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 138.9 MB. Free memory was 122.0 MB in the beginning and 121.8 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 661.65 ms. Allocated memory was 138.9 MB in the beginning and 203.4 MB in the end (delta: 64.5 MB). Free memory was 102.0 MB in the beginning and 172.3 MB in the end (delta: -70.3 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 120.15 ms. Allocated memory is still 203.4 MB. Free memory was 172.3 MB in the beginning and 166.4 MB in the end (delta: 5.9 MB). Peak memory consumption was 5.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1203.45 ms. Allocated memory was 203.4 MB in the beginning and 237.0 MB in the end (delta: 33.6 MB). Free memory was 166.4 MB in the beginning and 200.9 MB in the end (delta: -34.6 MB). Peak memory consumption was 81.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11916.20 ms. Allocated memory was 237.0 MB in the beginning and 467.7 MB in the end (delta: 230.7 MB). Free memory was 199.5 MB in the beginning and 310.0 MB in the end (delta: -110.5 MB). Peak memory consumption was 120.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 890]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L158] int pumpRunning = 0; [L159] int systemActive = 1; [L306] int waterLevel = 1; [L307] int methaneLevelCritical = 0; [L593] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L790] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=167, \old(head)=176, \old(head)=161, \old(methaneLevelCritical)=147, \old(pumpRunning)=138, \old(systemActive)=137, \old(waterLevel)=144, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L863] int retValue_acc ; [L864] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L868] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L869] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L870] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int retValue_acc ; [L418] retValue_acc = 1 [L419] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L870] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L870] tmp = valid_product() [L872] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L874] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L875] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L857] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L85] int splverifierCounter ; [L86] int tmp ; [L87] int tmp___0 ; [L88] int tmp___1 ; [L89] int tmp___2 ; [L92] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L94] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L96] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L102] tmp = __VERIFIER_nondet_int() [L104] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=1] [L106] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L324] COND TRUE waterLevel < 2 [L325] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L106] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=-1, waterLevel=2] [L112] tmp___0 = __VERIFIER_nondet_int() [L114] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L122] tmp___2 = __VERIFIER_nondet_int() [L124] COND FALSE !(\read(tmp___2)) [L130] tmp___1 = __VERIFIER_nondet_int() [L132] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L141] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L165] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L172] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L174] FCALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L180] CALL __utac_acc__Specification3_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L45] int tmp ; [L46] int tmp___0 ; [L47] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L345] int retValue_acc ; [L348] retValue_acc = methaneLevelCritical [L349] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L51] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L51] tmp = isMethaneLevelCritical() [L53] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L57] CALL, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L377] int retValue_acc ; [L380] retValue_acc = waterLevel [L381] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L57] RET, EXPR getWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, getWaterLevel()=2, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L57] tmp___0 = getWaterLevel() [L59] COND TRUE tmp___0 == 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L61] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L61] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L61] tmp___1 = isPumpRunning() [L63] COND FALSE !(\read(tmp___1)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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] [L67] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(systemActive)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L890] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=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 37 procedures, 214 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.7s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 8.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 429 SDtfs, 644 SDslu, 342 SDs, 0 SdLazy, 1355 SolverSat, 382 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 4.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=349occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 5 MinimizatonAttempts, 160 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 1.8s InterpolantComputationTime, 354 NumberOfCodeBlocks, 354 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 284 ConstructedInterpolants, 0 QuantifiedInterpolants, 80396 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 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...