/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml --traceabstraction.trace.refinement.strategy CAMEL_NO_AM -s ../../../trunk/examples/settings/default/automizer/svcomp-Reach-32bit-Automizer_Default.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-79ed534 [2020-07-19 20:59:15,775 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-19 20:59:15,777 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-19 20:59:15,794 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-19 20:59:15,795 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-19 20:59:15,796 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-19 20:59:15,798 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-19 20:59:15,805 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-19 20:59:15,806 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-19 20:59:15,810 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-19 20:59:15,811 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-19 20:59:15,812 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-19 20:59:15,812 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-19 20:59:15,814 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-19 20:59:15,815 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-19 20:59:15,817 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-19 20:59:15,818 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-19 20:59:15,819 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-19 20:59:15,824 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-19 20:59:15,826 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-19 20:59:15,827 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-19 20:59:15,830 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-19 20:59:15,831 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-19 20:59:15,832 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-19 20:59:15,836 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-19 20:59:15,836 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-19 20:59:15,837 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-19 20:59:15,840 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-19 20:59:15,841 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-19 20:59:15,842 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-19 20:59:15,843 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-19 20:59:15,844 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-19 20:59:15,845 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-19 20:59:15,847 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-19 20:59:15,848 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-19 20:59:15,849 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-19 20:59:15,849 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-19 20:59:15,849 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-19 20:59:15,850 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-19 20:59:15,850 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-19 20:59:15,852 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-19 20:59:15,852 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 [2020-07-19 20:59:15,872 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-19 20:59:15,872 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-19 20:59:15,874 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-19 20:59:15,874 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-19 20:59:15,874 INFO L138 SettingsManager]: * Use SBE=true [2020-07-19 20:59:15,875 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-19 20:59:15,875 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-19 20:59:15,875 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-19 20:59:15,875 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-19 20:59:15,875 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-19 20:59:15,876 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-19 20:59:15,877 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-19 20:59:15,877 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-19 20:59:15,877 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-19 20:59:15,877 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-19 20:59:15,878 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-19 20:59:15,878 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-19 20:59:15,878 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-19 20:59:15,878 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-19 20:59:15,878 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-19 20:59:15,879 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-19 20:59:15,879 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-19 20:59:15,879 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-19 20:59:15,879 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-19 20:59:15,879 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-19 20:59:15,880 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-19 20:59:15,880 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-19 20:59:15,880 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-19 20:59:15,880 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-19 20:59:15,880 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Trace refinement strategy -> CAMEL_NO_AM [2020-07-19 20:59:16,133 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-19 20:59:16,148 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-19 20:59:16,152 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-19 20:59:16,153 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-19 20:59:16,153 INFO L275 PluginConnector]: CDTParser initialized [2020-07-19 20:59:16,154 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2020-07-19 20:59:16,215 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62637a3ee/583e0b41e79d493aa30ffe34a3dcd2f1/FLAGb558377e9 [2020-07-19 20:59:16,742 INFO L306 CDTParser]: Found 1 translation units. [2020-07-19 20:59:16,743 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product04.cil.c [2020-07-19 20:59:16,761 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62637a3ee/583e0b41e79d493aa30ffe34a3dcd2f1/FLAGb558377e9 [2020-07-19 20:59:17,044 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/62637a3ee/583e0b41e79d493aa30ffe34a3dcd2f1 [2020-07-19 20:59:17,053 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-19 20:59:17,055 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-19 20:59:17,056 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-19 20:59:17,056 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-19 20:59:17,059 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-19 20:59:17,060 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:59:17" (1/1) ... [2020-07-19 20:59:17,063 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7d0c2f89 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:17, skipping insertion in model container [2020-07-19 20:59:17,063 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.07 08:59:17" (1/1) ... [2020-07-19 20:59:17,070 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-19 20:59:17,125 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-19 20:59:17,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:59:17,499 INFO L203 MainTranslator]: Completed pre-run [2020-07-19 20:59:17,579 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-19 20:59:17,616 INFO L208 MainTranslator]: Completed translation [2020-07-19 20:59:17,617 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:17 WrapperNode [2020-07-19 20:59:17,618 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-19 20:59:17,618 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-19 20:59:17,619 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-19 20:59:17,619 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-19 20:59:17,632 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:17" (1/1) ... [2020-07-19 20:59:17,634 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:17" (1/1) ... [2020-07-19 20:59:17,652 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:17" (1/1) ... [2020-07-19 20:59:17,652 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:17" (1/1) ... [2020-07-19 20:59:17,684 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:17" (1/1) ... [2020-07-19 20:59:17,694 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:17" (1/1) ... [2020-07-19 20:59:17,699 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:17" (1/1) ... [2020-07-19 20:59:17,708 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-19 20:59:17,712 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-19 20:59:17,712 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-19 20:59:17,712 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-19 20:59:17,713 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:17" (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 [2020-07-19 20:59:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-19 20:59:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-19 20:59:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-19 20:59:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-19 20:59:17,774 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-19 20:59:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-19 20:59:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-19 20:59:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-19 20:59:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-19 20:59:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-19 20:59:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-19 20:59:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-19 20:59:17,775 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-19 20:59:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-19 20:59:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-19 20:59:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-19 20:59:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-19 20:59:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-19 20:59:17,776 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-19 20:59:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-19 20:59:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-19 20:59:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-19 20:59:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-19 20:59:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-19 20:59:17,777 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-19 20:59:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-19 20:59:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-19 20:59:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-19 20:59:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-19 20:59:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-19 20:59:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-19 20:59:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-19 20:59:17,778 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-19 20:59:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-19 20:59:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-07-19 20:59:17,779 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-19 20:59:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-19 20:59:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-19 20:59:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-19 20:59:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-19 20:59:17,779 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-19 20:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-19 20:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-19 20:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-19 20:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-19 20:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-19 20:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-19 20:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-19 20:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-19 20:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-19 20:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-19 20:59:17,780 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-19 20:59:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-19 20:59:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-19 20:59:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-19 20:59:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-19 20:59:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-19 20:59:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-19 20:59:17,781 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-19 20:59:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-19 20:59:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-19 20:59:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-19 20:59:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-19 20:59:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-19 20:59:17,782 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-19 20:59:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-19 20:59:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-19 20:59:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-19 20:59:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-19 20:59:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-19 20:59:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-19 20:59:17,783 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-19 20:59:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-19 20:59:17,784 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-19 20:59:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-19 20:59:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-19 20:59:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-19 20:59:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-19 20:59:17,785 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-19 20:59:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-19 20:59:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-07-19 20:59:17,786 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-19 20:59:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-19 20:59:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-19 20:59:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-19 20:59:17,787 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-19 20:59:18,784 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-19 20:59:18,786 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-19 20:59:18,793 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:59:18 BoogieIcfgContainer [2020-07-19 20:59:18,793 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-19 20:59:18,794 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-19 20:59:18,794 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-19 20:59:18,797 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-19 20:59:18,798 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.07 08:59:17" (1/3) ... [2020-07-19 20:59:18,799 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1fb061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:59:18, skipping insertion in model container [2020-07-19 20:59:18,799 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.07 08:59:17" (2/3) ... [2020-07-19 20:59:18,800 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7b1fb061 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.07 08:59:18, skipping insertion in model container [2020-07-19 20:59:18,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.07 08:59:18" (3/3) ... [2020-07-19 20:59:18,801 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product04.cil.c [2020-07-19 20:59:18,811 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-19 20:59:18,820 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-19 20:59:18,834 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-19 20:59:18,857 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-19 20:59:18,857 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-19 20:59:18,858 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-19 20:59:18,858 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-19 20:59:18,858 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-19 20:59:18,858 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-19 20:59:18,859 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-19 20:59:18,859 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-19 20:59:18,883 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states. [2020-07-19 20:59:18,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2020-07-19 20:59:18,893 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:59:18,895 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] [2020-07-19 20:59:18,895 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:59:18,901 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:59:18,902 INFO L82 PathProgramCache]: Analyzing trace with hash -403347124, now seen corresponding path program 1 times [2020-07-19 20:59:18,911 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:59:18,911 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [943495985] [2020-07-19 20:59:18,912 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4012d086 [2020-07-19 20:59:19,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:19,546 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:59:19,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:19,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:19,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:19,624 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:19,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:19,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:19,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:19,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:19,663 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:59:19,663 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [943495985] [2020-07-19 20:59:19,664 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:59:19,665 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-19 20:59:19,665 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [440585413] [2020-07-19 20:59:19,670 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-19 20:59:19,671 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:59:19,684 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-19 20:59:19,685 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-19 20:59:19,688 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 3 states. [2020-07-19 20:59:20,589 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:59:20,589 INFO L93 Difference]: Finished difference Result 240 states and 317 transitions. [2020-07-19 20:59:20,590 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-19 20:59:20,592 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2020-07-19 20:59:20,592 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:59:20,606 INFO L225 Difference]: With dead ends: 240 [2020-07-19 20:59:20,606 INFO L226 Difference]: Without dead ends: 131 [2020-07-19 20:59:20,612 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 [2020-07-19 20:59:20,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2020-07-19 20:59:20,735 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 100. [2020-07-19 20:59:20,736 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 100 states. [2020-07-19 20:59:20,742 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 100 states to 100 states and 115 transitions. [2020-07-19 20:59:20,745 INFO L78 Accepts]: Start accepts. Automaton has 100 states and 115 transitions. Word has length 52 [2020-07-19 20:59:20,745 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:59:20,745 INFO L479 AbstractCegarLoop]: Abstraction has 100 states and 115 transitions. [2020-07-19 20:59:20,745 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-19 20:59:20,746 INFO L276 IsEmpty]: Start isEmpty. Operand 100 states and 115 transitions. [2020-07-19 20:59:20,753 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2020-07-19 20:59:20,754 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:59:20,754 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] [2020-07-19 20:59:20,754 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-19 20:59:20,754 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:59:20,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:59:20,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1720191538, now seen corresponding path program 1 times [2020-07-19 20:59:20,755 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:59:20,756 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208407502] [2020-07-19 20:59:20,756 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4012d086 [2020-07-19 20:59:20,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:21,129 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:59:21,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:21,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:21,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:21,175 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:21,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:21,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:21,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:21,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:21,193 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:59:21,194 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208407502] [2020-07-19 20:59:21,194 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:59:21,194 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-19 20:59:21,195 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1591894723] [2020-07-19 20:59:21,197 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-19 20:59:21,198 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:59:21,198 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-19 20:59:21,198 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-19 20:59:21,198 INFO L87 Difference]: Start difference. First operand 100 states and 115 transitions. Second operand 4 states. [2020-07-19 20:59:21,613 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:59:22,213 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:59:22,214 INFO L93 Difference]: Finished difference Result 160 states and 194 transitions. [2020-07-19 20:59:22,214 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-19 20:59:22,214 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 53 [2020-07-19 20:59:22,215 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:59:22,217 INFO L225 Difference]: With dead ends: 160 [2020-07-19 20:59:22,217 INFO L226 Difference]: Without dead ends: 115 [2020-07-19 20:59:22,219 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 [2020-07-19 20:59:22,219 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2020-07-19 20:59:22,248 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 91. [2020-07-19 20:59:22,248 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 91 states. [2020-07-19 20:59:22,249 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 91 states to 91 states and 103 transitions. [2020-07-19 20:59:22,249 INFO L78 Accepts]: Start accepts. Automaton has 91 states and 103 transitions. Word has length 53 [2020-07-19 20:59:22,249 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:59:22,249 INFO L479 AbstractCegarLoop]: Abstraction has 91 states and 103 transitions. [2020-07-19 20:59:22,249 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-19 20:59:22,250 INFO L276 IsEmpty]: Start isEmpty. Operand 91 states and 103 transitions. [2020-07-19 20:59:22,251 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2020-07-19 20:59:22,252 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:59:22,252 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] [2020-07-19 20:59:22,252 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-19 20:59:22,252 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:59:22,252 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:59:22,253 INFO L82 PathProgramCache]: Analyzing trace with hash -1933430427, now seen corresponding path program 1 times [2020-07-19 20:59:22,253 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:59:22,253 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1490827700] [2020-07-19 20:59:22,253 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4012d086 [2020-07-19 20:59:22,281 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:22,563 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:59:22,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:22,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:22,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:22,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:22,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:22,646 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:22,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:22,656 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:59:22,656 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1490827700] [2020-07-19 20:59:22,656 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:59:22,657 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2020-07-19 20:59:22,657 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1990099200] [2020-07-19 20:59:22,657 INFO L459 AbstractCegarLoop]: Interpolant automaton has 8 states [2020-07-19 20:59:22,658 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:59:22,658 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2020-07-19 20:59:22,658 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=42, Unknown=0, NotChecked=0, Total=56 [2020-07-19 20:59:22,658 INFO L87 Difference]: Start difference. First operand 91 states and 103 transitions. Second operand 8 states. [2020-07-19 20:59:23,037 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:59:23,351 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-19 20:59:23,601 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:59:23,838 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:59:24,504 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-19 20:59:25,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:59:25,586 INFO L93 Difference]: Finished difference Result 326 states and 401 transitions. [2020-07-19 20:59:25,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-19 20:59:25,587 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 58 [2020-07-19 20:59:25,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:59:25,592 INFO L225 Difference]: With dead ends: 326 [2020-07-19 20:59:25,592 INFO L226 Difference]: Without dead ends: 259 [2020-07-19 20:59:25,593 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=48, Invalid=108, Unknown=0, NotChecked=0, Total=156 [2020-07-19 20:59:25,594 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 259 states. [2020-07-19 20:59:25,653 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 259 to 190. [2020-07-19 20:59:25,653 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-07-19 20:59:25,654 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 225 transitions. [2020-07-19 20:59:25,655 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 225 transitions. Word has length 58 [2020-07-19 20:59:25,655 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:59:25,655 INFO L479 AbstractCegarLoop]: Abstraction has 190 states and 225 transitions. [2020-07-19 20:59:25,655 INFO L480 AbstractCegarLoop]: Interpolant automaton has 8 states. [2020-07-19 20:59:25,655 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 225 transitions. [2020-07-19 20:59:25,657 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2020-07-19 20:59:25,657 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:59:25,658 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] [2020-07-19 20:59:25,658 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-19 20:59:25,658 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:59:25,658 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:59:25,659 INFO L82 PathProgramCache]: Analyzing trace with hash 1944220283, now seen corresponding path program 1 times [2020-07-19 20:59:25,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:59:25,659 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2013072079] [2020-07-19 20:59:25,659 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4012d086 [2020-07-19 20:59:25,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:25,990 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:59:26,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:26,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:26,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:26,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:26,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:26,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:26,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:26,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:26,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:26,048 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:59:26,049 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2013072079] [2020-07-19 20:59:26,049 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:59:26,049 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-07-19 20:59:26,049 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [135576181] [2020-07-19 20:59:26,050 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-07-19 20:59:26,050 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:59:26,050 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-07-19 20:59:26,051 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2020-07-19 20:59:26,051 INFO L87 Difference]: Start difference. First operand 190 states and 225 transitions. Second operand 7 states. [2020-07-19 20:59:26,431 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:59:27,388 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:59:27,652 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:59:27,861 WARN L193 SmtUtils]: Spent 180.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-19 20:59:28,101 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:59:28,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:59:28,392 INFO L93 Difference]: Finished difference Result 537 states and 682 transitions. [2020-07-19 20:59:28,392 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-19 20:59:28,393 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2020-07-19 20:59:28,393 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:59:28,397 INFO L225 Difference]: With dead ends: 537 [2020-07-19 20:59:28,397 INFO L226 Difference]: Without dead ends: 371 [2020-07-19 20:59:28,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 1.3s TimeCoverageRelationStatistics Valid=38, Invalid=94, Unknown=0, NotChecked=0, Total=132 [2020-07-19 20:59:28,400 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 371 states. [2020-07-19 20:59:28,474 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 371 to 349. [2020-07-19 20:59:28,474 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 349 states. [2020-07-19 20:59:28,476 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 349 states to 349 states and 425 transitions. [2020-07-19 20:59:28,477 INFO L78 Accepts]: Start accepts. Automaton has 349 states and 425 transitions. Word has length 61 [2020-07-19 20:59:28,477 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:59:28,477 INFO L479 AbstractCegarLoop]: Abstraction has 349 states and 425 transitions. [2020-07-19 20:59:28,477 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-07-19 20:59:28,478 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states and 425 transitions. [2020-07-19 20:59:28,480 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-19 20:59:28,480 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:59:28,481 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] [2020-07-19 20:59:28,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-19 20:59:28,481 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:59:28,481 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:59:28,481 INFO L82 PathProgramCache]: Analyzing trace with hash 1974146389, now seen corresponding path program 1 times [2020-07-19 20:59:28,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:59:28,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1204547215] [2020-07-19 20:59:28,482 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4012d086 [2020-07-19 20:59:28,506 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:28,761 WARN L193 SmtUtils]: Spent 191.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-19 20:59:28,773 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:28,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:28,790 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:28,791 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:28,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:28,810 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:28,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:28,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:28,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:28,815 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-19 20:59:28,823 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-19 20:59:28,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1204547215] [2020-07-19 20:59:28,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-19 20:59:28,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2020-07-19 20:59:28,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [818722346] [2020-07-19 20:59:28,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-19 20:59:28,824 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL_NO_AM [2020-07-19 20:59:28,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-19 20:59:28,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-19 20:59:28,825 INFO L87 Difference]: Start difference. First operand 349 states and 425 transitions. Second operand 5 states. [2020-07-19 20:59:29,117 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-19 20:59:29,681 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-19 20:59:29,682 INFO L93 Difference]: Finished difference Result 642 states and 802 transitions. [2020-07-19 20:59:29,682 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-19 20:59:29,682 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2020-07-19 20:59:29,683 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-19 20:59:29,688 INFO L225 Difference]: With dead ends: 642 [2020-07-19 20:59:29,688 INFO L226 Difference]: Without dead ends: 317 [2020-07-19 20:59:29,690 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 [2020-07-19 20:59:29,691 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 317 states. [2020-07-19 20:59:29,753 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 317 to 303. [2020-07-19 20:59:29,754 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 303 states. [2020-07-19 20:59:29,756 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 303 states to 303 states and 354 transitions. [2020-07-19 20:59:29,756 INFO L78 Accepts]: Start accepts. Automaton has 303 states and 354 transitions. Word has length 65 [2020-07-19 20:59:29,756 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-19 20:59:29,756 INFO L479 AbstractCegarLoop]: Abstraction has 303 states and 354 transitions. [2020-07-19 20:59:29,757 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-19 20:59:29,757 INFO L276 IsEmpty]: Start isEmpty. Operand 303 states and 354 transitions. [2020-07-19 20:59:29,758 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2020-07-19 20:59:29,758 INFO L414 BasicCegarLoop]: Found error trace [2020-07-19 20:59:29,759 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] [2020-07-19 20:59:29,759 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-19 20:59:29,759 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-19 20:59:29,759 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-19 20:59:29,759 INFO L82 PathProgramCache]: Analyzing trace with hash 1832330753, now seen corresponding path program 1 times [2020-07-19 20:59:29,760 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL_NO_AM [2020-07-19 20:59:29,760 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [391932977] [2020-07-19 20:59:29,760 INFO L95 rtionOrderModulation]: Keeping assertion order de.uni_freiburg.informatik.ultimate.lib.modelcheckerutils.smt.tracecheck.ITraceCheckPreferences$AssertCodeBlockOrder@4012d086 [2020-07-19 20:59:29,823 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:59:29,823 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:59:29,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-19 20:59:29,894 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-07-19 20:59:29,979 INFO L174 FreeRefinementEngine]: Strategy CAMEL_NO_AM found a feasible trace [2020-07-19 20:59:29,979 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-19 20:59:29,980 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-19 20:59:30,169 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.07 08:59:30 BoogieIcfgContainer [2020-07-19 20:59:30,170 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-19 20:59:30,173 INFO L168 Benchmark]: Toolchain (without parser) took 13117.75 ms. Allocated memory was 138.9 MB in the beginning and 478.7 MB in the end (delta: 339.7 MB). Free memory was 102.8 MB in the beginning and 316.1 MB in the end (delta: -213.3 MB). Peak memory consumption was 126.4 MB. Max. memory is 7.1 GB. [2020-07-19 20:59:30,175 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-19 20:59:30,178 INFO L168 Benchmark]: CACSL2BoogieTranslator took 562.13 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 170.1 MB in the end (delta: -67.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. [2020-07-19 20:59:30,179 INFO L168 Benchmark]: Boogie Preprocessor took 92.85 ms. Allocated memory is still 202.9 MB. Free memory was 170.1 MB in the beginning and 165.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. [2020-07-19 20:59:30,182 INFO L168 Benchmark]: RCFGBuilder took 1081.46 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 165.0 MB in the beginning and 197.4 MB in the end (delta: -32.4 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. [2020-07-19 20:59:30,183 INFO L168 Benchmark]: TraceAbstraction took 11375.79 ms. Allocated memory was 236.5 MB in the beginning and 478.7 MB in the end (delta: 242.2 MB). Free memory was 197.4 MB in the beginning and 316.1 MB in the end (delta: -118.7 MB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. [2020-07-19 20:59:30,192 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: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 562.13 ms. Allocated memory was 138.9 MB in the beginning and 202.9 MB in the end (delta: 64.0 MB). Free memory was 102.3 MB in the beginning and 170.1 MB in the end (delta: -67.8 MB). Peak memory consumption was 25.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 92.85 ms. Allocated memory is still 202.9 MB. Free memory was 170.1 MB in the beginning and 165.7 MB in the end (delta: 4.4 MB). Peak memory consumption was 4.4 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1081.46 ms. Allocated memory was 202.9 MB in the beginning and 236.5 MB in the end (delta: 33.6 MB). Free memory was 165.0 MB in the beginning and 197.4 MB in the end (delta: -32.4 MB). Peak memory consumption was 80.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 11375.79 ms. Allocated memory was 236.5 MB in the beginning and 478.7 MB in the end (delta: 242.2 MB). Free memory was 197.4 MB in the beginning and 316.1 MB in the end (delta: -118.7 MB). Peak memory consumption was 123.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 633]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L46] int waterLevel = 1; [L47] int methaneLevelCritical = 0; [L295] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L530] int cleanupTimeShifts = 4; [L677] int pumpRunning = 0; [L678] int systemActive = 1; VAL [\old(cleanupTimeShifts)=174, \old(head)=164, \old(head)=176, \old(methaneLevelCritical)=141, \old(pumpRunning)=130, \old(systemActive)=129, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L606] int retValue_acc ; [L607] 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] [L611] 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] [L612] 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] [L613] 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] [L521] int retValue_acc ; [L524] retValue_acc = 1 [L525] 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] [L613] 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] [L613] tmp = valid_product() [L615] 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] [L617] 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] [L618] 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] [L600] 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] [L808] int splverifierCounter ; [L809] int tmp ; [L810] int tmp___0 ; [L811] int tmp___1 ; [L812] int tmp___2 ; [L815] 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] [L817] 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] [L819] 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] [L825] tmp = __VERIFIER_nondet_int() [L827] 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] [L829] 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] [L64] COND TRUE waterLevel < 2 [L65] 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] [L829] 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] [L835] tmp___0 = __VERIFIER_nondet_int() [L837] 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] [L845] tmp___2 = __VERIFIER_nondet_int() [L847] COND FALSE !(\read(tmp___2)) [L853] tmp___1 = __VERIFIER_nondet_int() [L855] 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] [L864] 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] [L684] 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] [L691] 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] [L693] 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] [L699] 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] [L640] int tmp ; [L641] int tmp___0 ; [L642] 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] [L646] 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] [L85] int retValue_acc ; [L88] retValue_acc = methaneLevelCritical [L89] 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] [L646] 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] [L646] tmp = isMethaneLevelCritical() [L648] 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] [L652] 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] [L117] int retValue_acc ; [L120] retValue_acc = waterLevel [L121] 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] [L652] 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] [L652] tmp___0 = getWaterLevel() [L654] 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] [L656] 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] [L739] int retValue_acc ; [L742] retValue_acc = pumpRunning [L743] 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] [L656] 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] [L656] tmp___1 = isPumpRunning() [L658] 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] [L662] 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] [L633] __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 36 procedures, 207 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 11.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 8.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 439 SDtfs, 641 SDslu, 330 SDs, 0 SdLazy, 1334 SolverSat, 395 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 4.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 129 GetRequests, 99 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 3.8s 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...