/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 -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:34:37,703 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:34:37,706 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:34:37,724 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:34:37,724 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:34:37,725 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:34:37,727 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:34:37,736 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:34:37,739 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:34:37,742 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:34:37,744 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:34:37,746 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:34:37,746 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:34:37,749 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:34:37,750 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:34:37,751 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:34:37,753 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:34:37,754 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:34:37,755 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:34:37,760 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:34:37,765 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:34:37,767 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:34:37,768 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:34:37,769 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:34:37,772 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:34:37,772 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:34:37,772 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:34:37,775 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:34:37,775 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:34:37,776 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:34:37,776 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:34:37,777 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:34:37,778 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:34:37,778 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:34:37,779 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:34:37,780 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:34:37,780 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:34:37,780 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:34:37,781 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:34:37,781 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:34:37,783 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:34:37,783 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:34:37,811 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:34:37,811 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:34:37,815 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:34:37,815 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:34:37,816 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:34:37,816 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:34:37,816 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:34:37,816 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:34:37,816 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:34:37,817 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:34:37,817 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:34:37,817 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:34:37,817 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:34:37,817 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:34:37,818 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:34:37,818 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:34:37,818 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:34:37,818 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:34:37,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:34:37,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:34:37,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:34:37,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:34:37,820 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:34:38,082 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:34:38,093 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:34:38,097 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:34:38,098 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:34:38,098 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:34:38,099 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-07-07 12:34:38,169 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be8e3ed36/2542d1b9a9c7480d92635b5fd8806f43/FLAG2ad55e74a [2020-07-07 12:34:38,661 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:34:38,662 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product51.cil.c [2020-07-07 12:34:38,675 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be8e3ed36/2542d1b9a9c7480d92635b5fd8806f43/FLAG2ad55e74a [2020-07-07 12:34:38,994 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/be8e3ed36/2542d1b9a9c7480d92635b5fd8806f43 [2020-07-07 12:34:39,005 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:34:39,007 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:34:39,008 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:34:39,008 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:34:39,011 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:34:39,012 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:34:38" (1/1) ... [2020-07-07 12:34:39,015 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@446c2e81 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:39, skipping insertion in model container [2020-07-07 12:34:39,015 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:34:38" (1/1) ... [2020-07-07 12:34:39,022 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:34:39,083 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:34:39,482 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:34:39,501 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:34:39,620 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:34:39,666 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:34:39,666 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:39 WrapperNode [2020-07-07 12:34:39,666 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:34:39,667 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:34:39,667 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:34:39,667 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:34:39,677 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:39" (1/1) ... [2020-07-07 12:34:39,677 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:39" (1/1) ... [2020-07-07 12:34:39,695 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:39" (1/1) ... [2020-07-07 12:34:39,696 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:39" (1/1) ... [2020-07-07 12:34:39,728 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:39" (1/1) ... [2020-07-07 12:34:39,739 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:39" (1/1) ... [2020-07-07 12:34:39,747 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:39" (1/1) ... [2020-07-07 12:34:39,756 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:34:39,756 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:34:39,756 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:34:39,756 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:34:39,757 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:39" (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 [2020-07-07 12:34:39,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:34:39,830 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:34:39,831 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:34:39,831 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:34:39,831 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:34:39,831 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:34:39,831 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:34:39,831 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:34:39,831 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:34:39,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:34:39,832 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 12:34:39,832 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:34:39,832 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:34:39,832 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:34:39,832 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:34:39,833 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:34:39,833 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:34:39,833 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:34:39,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:34:39,833 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:34:39,834 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:34:39,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:34:39,834 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 12:34:39,834 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:34:39,834 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:34:39,835 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:34:39,835 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:34:39,835 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:34:39,835 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:34:39,835 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:34:39,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:34:39,835 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:34:39,836 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:34:39,836 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:34:39,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:34:39,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:34:39,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:34:39,836 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:34:39,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:34:39,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:34:39,837 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:34:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:34:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:34:39,837 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:34:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:34:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:34:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:34:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:34:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:34:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:34:39,838 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:34:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 12:34:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:34:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:34:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:34:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:34:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:34:39,839 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:34:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:34:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:34:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:34:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:34:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:34:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:34:39,840 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:34:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-07-07 12:34:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 12:34:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:34:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:34:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:34:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:34:39,841 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:34:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:34:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:34:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:34:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:34:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:34:39,842 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:34:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:34:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:34:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:34:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:34:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:34:39,843 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:34:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:34:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:34:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:34:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:34:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:34:39,844 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:34:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:34:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:34:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:34:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:34:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:34:39,845 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:34:41,071 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:34:41,072 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:34:41,078 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:34:41 BoogieIcfgContainer [2020-07-07 12:34:41,078 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:34:41,079 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:34:41,079 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:34:41,082 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:34:41,082 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:34:38" (1/3) ... [2020-07-07 12:34:41,083 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6083e692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:34:41, skipping insertion in model container [2020-07-07 12:34:41,083 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:39" (2/3) ... [2020-07-07 12:34:41,084 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6083e692 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:34:41, skipping insertion in model container [2020-07-07 12:34:41,084 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:34:41" (3/3) ... [2020-07-07 12:34:41,085 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product51.cil.c [2020-07-07 12:34:41,096 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:34:41,104 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:34:41,118 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:34:41,139 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:34:41,140 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:34:41,140 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:34:41,140 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:34:41,140 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:34:41,141 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:34:41,141 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:34:41,141 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:34:41,161 INFO L276 IsEmpty]: Start isEmpty. Operand 335 states. [2020-07-07 12:34:41,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:34:41,183 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:41,184 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:41,185 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:41,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:41,191 INFO L82 PathProgramCache]: Analyzing trace with hash 1368877385, now seen corresponding path program 1 times [2020-07-07 12:34:41,199 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:41,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [546833817] [2020-07-07 12:34:41,200 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:41,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:41,872 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:41,888 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:41,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:41,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:42,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:42,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:42,006 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:42,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:42,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:42,071 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:42,071 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:42,074 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [546833817] [2020-07-07 12:34:42,076 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:42,077 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:34:42,078 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1805620638] [2020-07-07 12:34:42,088 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:34:42,088 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:42,103 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:34:42,105 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:34:42,116 INFO L87 Difference]: Start difference. First operand 335 states. Second operand 3 states. [2020-07-07 12:34:43,516 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:43,517 INFO L93 Difference]: Finished difference Result 525 states and 623 transitions. [2020-07-07 12:34:43,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:34:43,519 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:34:43,520 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:43,536 INFO L225 Difference]: With dead ends: 525 [2020-07-07 12:34:43,537 INFO L226 Difference]: Without dead ends: 321 [2020-07-07 12:34:43,542 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:34:43,561 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-07 12:34:43,721 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 278. [2020-07-07 12:34:43,722 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 278 states. [2020-07-07 12:34:43,724 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 278 states to 278 states and 303 transitions. [2020-07-07 12:34:43,726 INFO L78 Accepts]: Start accepts. Automaton has 278 states and 303 transitions. Word has length 153 [2020-07-07 12:34:43,727 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:43,727 INFO L479 AbstractCegarLoop]: Abstraction has 278 states and 303 transitions. [2020-07-07 12:34:43,728 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:34:43,728 INFO L276 IsEmpty]: Start isEmpty. Operand 278 states and 303 transitions. [2020-07-07 12:34:43,732 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:34:43,732 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:43,733 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:43,733 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:34:43,733 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:43,734 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:43,734 INFO L82 PathProgramCache]: Analyzing trace with hash -519128140, now seen corresponding path program 1 times [2020-07-07 12:34:43,734 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:43,734 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1747596894] [2020-07-07 12:34:43,735 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:43,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:44,097 WARN L193 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:44,106 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:44,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:44,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:44,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:44,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:44,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:44,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:44,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:44,165 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:44,166 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:44,166 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1747596894] [2020-07-07 12:34:44,166 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:44,167 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:34:44,167 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375217931] [2020-07-07 12:34:44,168 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:34:44,168 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:44,169 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:34:44,169 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:34:44,169 INFO L87 Difference]: Start difference. First operand 278 states and 303 transitions. Second operand 4 states. [2020-07-07 12:34:44,763 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:34:45,784 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:45,784 INFO L93 Difference]: Finished difference Result 436 states and 490 transitions. [2020-07-07 12:34:45,784 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:34:45,785 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:34:45,786 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:45,790 INFO L225 Difference]: With dead ends: 436 [2020-07-07 12:34:45,790 INFO L226 Difference]: Without dead ends: 304 [2020-07-07 12:34:45,793 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 [2020-07-07 12:34:45,794 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-07-07 12:34:45,874 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 268. [2020-07-07 12:34:45,875 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 268 states. [2020-07-07 12:34:45,876 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 268 states to 268 states and 290 transitions. [2020-07-07 12:34:45,876 INFO L78 Accepts]: Start accepts. Automaton has 268 states and 290 transitions. Word has length 154 [2020-07-07 12:34:45,877 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:45,877 INFO L479 AbstractCegarLoop]: Abstraction has 268 states and 290 transitions. [2020-07-07 12:34:45,877 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:34:45,878 INFO L276 IsEmpty]: Start isEmpty. Operand 268 states and 290 transitions. [2020-07-07 12:34:45,880 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:34:45,880 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:45,881 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:45,881 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:34:45,881 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:45,881 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:45,882 INFO L82 PathProgramCache]: Analyzing trace with hash 2138906807, now seen corresponding path program 1 times [2020-07-07 12:34:45,882 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:45,882 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [677505319] [2020-07-07 12:34:45,882 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:45,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:46,247 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:46,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:46,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:46,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:46,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:46,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:46,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:46,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:46,424 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:46,456 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:46,457 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:46,457 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [677505319] [2020-07-07 12:34:46,457 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:46,457 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:34:46,458 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [431412970] [2020-07-07 12:34:46,458 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:34:46,458 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:46,459 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:34:46,459 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:34:46,459 INFO L87 Difference]: Start difference. First operand 268 states and 290 transitions. Second operand 9 states. [2020-07-07 12:34:46,893 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:47,231 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:34:47,477 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:34:47,712 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:47,959 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:48,181 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:49,064 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:34:51,335 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:51,335 INFO L93 Difference]: Finished difference Result 726 states and 833 transitions. [2020-07-07 12:34:51,336 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:34:51,336 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:34:51,337 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:51,342 INFO L225 Difference]: With dead ends: 726 [2020-07-07 12:34:51,343 INFO L226 Difference]: Without dead ends: 568 [2020-07-07 12:34:51,344 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.8s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-07 12:34:51,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2020-07-07 12:34:51,499 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 501. [2020-07-07 12:34:51,500 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 501 states. [2020-07-07 12:34:51,503 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 501 states to 501 states and 560 transitions. [2020-07-07 12:34:51,503 INFO L78 Accepts]: Start accepts. Automaton has 501 states and 560 transitions. Word has length 163 [2020-07-07 12:34:51,504 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:51,504 INFO L479 AbstractCegarLoop]: Abstraction has 501 states and 560 transitions. [2020-07-07 12:34:51,504 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:34:51,504 INFO L276 IsEmpty]: Start isEmpty. Operand 501 states and 560 transitions. [2020-07-07 12:34:51,507 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:34:51,507 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:51,508 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:51,508 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:34:51,508 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:51,508 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:51,509 INFO L82 PathProgramCache]: Analyzing trace with hash -2098385337, now seen corresponding path program 1 times [2020-07-07 12:34:51,509 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:51,509 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1709891505] [2020-07-07 12:34:51,509 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:51,538 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:51,886 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:51,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:51,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:51,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:51,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:51,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:52,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:52,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:52,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:52,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:52,134 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:52,134 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:52,135 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1709891505] [2020-07-07 12:34:52,135 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:52,135 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:34:52,136 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1024744505] [2020-07-07 12:34:52,136 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:34:52,137 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:52,137 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:34:52,138 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:34:52,138 INFO L87 Difference]: Start difference. First operand 501 states and 560 transitions. Second operand 9 states. [2020-07-07 12:34:52,799 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:54,818 WARN L193 SmtUtils]: Spent 231.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:55,084 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:55,443 WARN L193 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:55,740 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:55,994 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:56,233 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:56,476 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:57,276 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:57,276 INFO L93 Difference]: Finished difference Result 1362 states and 1633 transitions. [2020-07-07 12:34:57,277 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:34:57,277 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:34:57,277 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:57,284 INFO L225 Difference]: With dead ends: 1362 [2020-07-07 12:34:57,284 INFO L226 Difference]: Without dead ends: 971 [2020-07-07 12:34:57,286 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:34:57,288 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2020-07-07 12:34:57,554 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 871. [2020-07-07 12:34:57,554 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 871 states. [2020-07-07 12:34:57,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 871 states to 871 states and 997 transitions. [2020-07-07 12:34:57,560 INFO L78 Accepts]: Start accepts. Automaton has 871 states and 997 transitions. Word has length 172 [2020-07-07 12:34:57,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:57,561 INFO L479 AbstractCegarLoop]: Abstraction has 871 states and 997 transitions. [2020-07-07 12:34:57,561 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:34:57,561 INFO L276 IsEmpty]: Start isEmpty. Operand 871 states and 997 transitions. [2020-07-07 12:34:57,565 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:34:57,565 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:57,566 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:57,566 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:34:57,566 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:57,566 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:57,566 INFO L82 PathProgramCache]: Analyzing trace with hash 930782325, now seen corresponding path program 1 times [2020-07-07 12:34:57,567 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:57,567 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1986232356] [2020-07-07 12:34:57,567 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:57,597 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:57,851 WARN L193 SmtUtils]: Spent 175.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:57,868 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:57,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:57,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:57,900 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:57,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:57,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:57,935 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:57,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:57,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:57,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:58,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:58,013 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:58,013 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1986232356] [2020-07-07 12:34:58,014 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:58,014 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:34:58,014 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1414606108] [2020-07-07 12:34:58,015 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:34:58,016 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:58,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:34:58,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:34:58,016 INFO L87 Difference]: Start difference. First operand 871 states and 997 transitions. Second operand 6 states. [2020-07-07 12:34:58,584 WARN L193 SmtUtils]: Spent 233.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:35:00,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:35:00,825 INFO L93 Difference]: Finished difference Result 1956 states and 2350 transitions. [2020-07-07 12:35:00,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 12:35:00,825 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-07-07 12:35:00,826 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:35:00,833 INFO L225 Difference]: With dead ends: 1956 [2020-07-07 12:35:00,833 INFO L226 Difference]: Without dead ends: 1195 [2020-07-07 12:35:00,836 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:35:00,838 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1195 states. [2020-07-07 12:35:01,361 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1195 to 1098. [2020-07-07 12:35:01,361 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1098 states. [2020-07-07 12:35:01,367 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1098 states to 1098 states and 1253 transitions. [2020-07-07 12:35:01,368 INFO L78 Accepts]: Start accepts. Automaton has 1098 states and 1253 transitions. Word has length 177 [2020-07-07 12:35:01,368 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:35:01,368 INFO L479 AbstractCegarLoop]: Abstraction has 1098 states and 1253 transitions. [2020-07-07 12:35:01,368 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:35:01,369 INFO L276 IsEmpty]: Start isEmpty. Operand 1098 states and 1253 transitions. [2020-07-07 12:35:01,372 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:35:01,372 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:35:01,372 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:35:01,372 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:35:01,372 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:35:01,373 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:35:01,373 INFO L82 PathProgramCache]: Analyzing trace with hash 1702574382, now seen corresponding path program 1 times [2020-07-07 12:35:01,373 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:35:01,373 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792204366] [2020-07-07 12:35:01,373 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:35:01,426 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:35:01,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:35:01,720 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:35:01,721 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:35:01,721 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:35:01,723 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:35:01,754 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:35:01 BoogieIcfgContainer [2020-07-07 12:35:01,755 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:35:01,758 INFO L168 Benchmark]: Toolchain (without parser) took 22749.97 ms. Allocated memory was 146.8 MB in the beginning and 654.8 MB in the end (delta: 508.0 MB). Free memory was 102.5 MB in the beginning and 468.6 MB in the end (delta: -366.0 MB). Peak memory consumption was 142.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:01,763 INFO L168 Benchmark]: CDTParser took 0.28 ms. Allocated memory is still 146.8 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. [2020-07-07 12:35:01,764 INFO L168 Benchmark]: CACSL2BoogieTranslator took 658.65 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 102.3 MB in the beginning and 171.1 MB in the end (delta: -68.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:01,765 INFO L168 Benchmark]: Boogie Preprocessor took 89.04 ms. Allocated memory is still 204.5 MB. Free memory was 171.1 MB in the beginning and 166.6 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:01,765 INFO L168 Benchmark]: RCFGBuilder took 1321.90 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 166.6 MB in the beginning and 166.8 MB in the end (delta: -209.5 kB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:01,766 INFO L168 Benchmark]: TraceAbstraction took 20675.73 ms. Allocated memory was 233.8 MB in the beginning and 654.8 MB in the end (delta: 421.0 MB). Free memory was 165.4 MB in the beginning and 468.6 MB in the end (delta: -303.1 MB). Peak memory consumption was 117.9 MB. Max. memory is 7.1 GB. [2020-07-07 12:35:01,778 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.28 ms. Allocated memory is still 146.8 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 658.65 ms. Allocated memory was 146.8 MB in the beginning and 204.5 MB in the end (delta: 57.7 MB). Free memory was 102.3 MB in the beginning and 171.1 MB in the end (delta: -68.8 MB). Peak memory consumption was 21.0 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 89.04 ms. Allocated memory is still 204.5 MB. Free memory was 171.1 MB in the beginning and 166.6 MB in the end (delta: 4.5 MB). Peak memory consumption was 4.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1321.90 ms. Allocated memory was 204.5 MB in the beginning and 233.8 MB in the end (delta: 29.4 MB). Free memory was 166.6 MB in the beginning and 166.8 MB in the end (delta: -209.5 kB). Peak memory consumption was 78.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 20675.73 ms. Allocated memory was 233.8 MB in the beginning and 654.8 MB in the end (delta: 421.0 MB). Free memory was 165.4 MB in the beginning and 468.6 MB in the end (delta: -303.1 MB). Peak memory consumption was 117.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 977]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L48] int waterLevel = 1; [L49] int methaneLevelCritical = 0; [L225] int pumpRunning = 0; [L226] int systemActive = 1; [L473] int cleanupTimeShifts = 4; [L776] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L549] int retValue_acc ; [L550] int tmp ; [L554] FCALL select_helpers() [L555] FCALL select_features() [L556] CALL, EXPR valid_product() [L598] int retValue_acc ; [L601] retValue_acc = 1 [L602] return (retValue_acc); [L556] RET, EXPR valid_product() [L556] tmp = valid_product() [L558] COND TRUE \read(tmp) [L560] FCALL setup() [L561] CALL runTest() [L540] CALL test() [L155] int splverifierCounter ; [L156] int tmp ; [L157] int tmp___0 ; [L158] int tmp___1 ; [L159] int tmp___2 ; [L162] splverifierCounter = 0 [L164] COND TRUE 1 [L166] COND TRUE splverifierCounter < 4 [L172] tmp = __VERIFIER_nondet_int() [L174] COND TRUE \read(tmp) [L176] CALL waterRise() [L66] COND TRUE waterLevel < 2 [L67] waterLevel = waterLevel + 1 [L176] RET waterRise() [L182] tmp___0 = __VERIFIER_nondet_int() [L184] COND FALSE !(\read(tmp___0)) [L192] tmp___2 = __VERIFIER_nondet_int() [L194] COND FALSE !(\read(tmp___2)) [L198] tmp___1 = __VERIFIER_nondet_int() [L200] COND TRUE \read(tmp___1) [L202] CALL stopSystem() [L426] COND FALSE !(\read(pumpRunning)) [L433] systemActive = 0 [L202] RET stopSystem() [L209] CALL timeShift() [L233] COND FALSE !(\read(pumpRunning)) [L240] COND FALSE !(\read(systemActive)) [L248] CALL __utac_acc__Specification3_spec__1() [L440] int tmp ; [L441] int tmp___0 ; [L442] int tmp___1 ; [L446] CALL, EXPR isMethaneLevelCritical() [L87] int retValue_acc ; [L90] retValue_acc = methaneLevelCritical [L91] return (retValue_acc); [L446] RET, EXPR isMethaneLevelCritical() [L446] tmp = isMethaneLevelCritical() [L448] COND FALSE !(\read(tmp)) [L452] CALL, EXPR getWaterLevel() [L119] int retValue_acc ; [L122] retValue_acc = waterLevel [L123] return (retValue_acc); [L452] RET, EXPR getWaterLevel() [L452] tmp___0 = getWaterLevel() [L454] COND TRUE tmp___0 == 2 [L456] CALL, EXPR isPumpRunning() [L340] int retValue_acc ; [L343] retValue_acc = pumpRunning [L344] return (retValue_acc); [L456] RET, EXPR isPumpRunning() [L456] tmp___1 = isPumpRunning() [L458] COND FALSE !(\read(tmp___1)) [L462] CALL __automaton_fail() [L977] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 649 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.5s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 15.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1315 SDtfs, 2059 SDslu, 1438 SDs, 0 SdLazy, 3898 SolverSat, 664 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 54 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1098occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 343 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, 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...