/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_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:33:49,060 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:33:49,062 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:33:49,076 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:33:49,077 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:33:49,078 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:33:49,080 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:33:49,081 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:33:49,083 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:33:49,084 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:33:49,085 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:33:49,086 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:33:49,086 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:33:49,087 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:33:49,088 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:33:49,089 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:33:49,090 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:33:49,091 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:33:49,092 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:33:49,094 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:33:49,096 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:33:49,097 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:33:49,098 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:33:49,099 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:33:49,101 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:33:49,101 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:33:49,102 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:33:49,102 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:33:49,103 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:33:49,104 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:33:49,104 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:33:49,105 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:33:49,105 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:33:49,106 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:33:49,107 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:33:49,107 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:33:49,108 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:33:49,108 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:33:49,108 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:33:49,109 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:33:49,110 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:33:49,111 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 12:33:49,122 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:33:49,122 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:33:49,123 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:33:49,123 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:33:49,123 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:33:49,124 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:33:49,124 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:33:49,124 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:33:49,124 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:33:49,124 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:33:49,125 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:33:49,125 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:33:49,125 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:33:49,125 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:33:49,125 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:33:49,126 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:33:49,126 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:33:49,126 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:33:49,126 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:33:49,126 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:33:49,127 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:33:49,127 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:33:49,127 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:33:49,397 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:33:49,410 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:33:49,414 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:33:49,415 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:33:49,415 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:33:49,416 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-07-07 12:33:49,486 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2a53af8e/a4b0bcf04e174e5ba2e5141ff71bdad3/FLAG167c38fbe [2020-07-07 12:33:49,971 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:33:49,971 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-07-07 12:33:49,991 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2a53af8e/a4b0bcf04e174e5ba2e5141ff71bdad3/FLAG167c38fbe [2020-07-07 12:33:50,286 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/d2a53af8e/a4b0bcf04e174e5ba2e5141ff71bdad3 [2020-07-07 12:33:50,294 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:33:50,296 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:33:50,297 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:50,297 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:33:50,300 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:33:50,304 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:50" (1/1) ... [2020-07-07 12:33:50,307 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1ef26602 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:50, skipping insertion in model container [2020-07-07 12:33:50,308 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:50" (1/1) ... [2020-07-07 12:33:50,314 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:33:50,356 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:33:50,647 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:50,659 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:33:50,829 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:50,864 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:33:50,864 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:50 WrapperNode [2020-07-07 12:33:50,864 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:50,865 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:33:50,865 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:33:50,865 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:33:50,879 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:50" (1/1) ... [2020-07-07 12:33:50,879 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:50" (1/1) ... [2020-07-07 12:33:50,897 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:50" (1/1) ... [2020-07-07 12:33:50,898 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:50" (1/1) ... [2020-07-07 12:33:50,931 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:50" (1/1) ... [2020-07-07 12:33:50,941 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:50" (1/1) ... [2020-07-07 12:33:50,946 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:50" (1/1) ... [2020-07-07 12:33:50,953 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:33:50,954 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:33:50,954 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:33:50,954 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:33:50,955 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:50" (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 12:33:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:33:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:33:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:33:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:33:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:33:51,015 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:33:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:33:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:33:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:33:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:33:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:33:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:33:51,016 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:33:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:33:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:33:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:33:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:33:51,017 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:33:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:33:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:33:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:33:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:33:51,018 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:33:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:33:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:33:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:33:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:33:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:33:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:33:51,019 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:33:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:33:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:33:51,020 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:33:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:33:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:33:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:33:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:33:51,021 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:33:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:33:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:33:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:33:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:33:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:33:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:33:51,022 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:33:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:33:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:33:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:33:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:33:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:33:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:51,023 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:33:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:33:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:33:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:33:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:33:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:33:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:33:51,024 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:33:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:33:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:33:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:33:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:33:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:33:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:33:51,025 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:33:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:33:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:33:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:33:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:33:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:33:51,026 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:33:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:33:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:33:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:51,027 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:33:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:33:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:33:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:33:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:33:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:33:51,028 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:33:52,072 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:33:52,072 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:33:52,083 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:52 BoogieIcfgContainer [2020-07-07 12:33:52,084 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:33:52,085 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:33:52,085 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:33:52,089 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:33:52,089 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:33:50" (1/3) ... [2020-07-07 12:33:52,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be100f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:52, skipping insertion in model container [2020-07-07 12:33:52,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:50" (2/3) ... [2020-07-07 12:33:52,090 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4be100f6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:52, skipping insertion in model container [2020-07-07 12:33:52,090 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:52" (3/3) ... [2020-07-07 12:33:52,092 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-07-07 12:33:52,102 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:33:52,110 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:33:52,123 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:33:52,144 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:33:52,144 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:33:52,145 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:33:52,145 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:33:52,145 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:33:52,145 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:33:52,145 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:33:52,146 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:33:52,164 INFO L276 IsEmpty]: Start isEmpty. Operand 304 states. [2020-07-07 12:33:52,184 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:33:52,184 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:52,185 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 12:33:52,186 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:52,190 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:52,191 INFO L82 PathProgramCache]: Analyzing trace with hash 2007669194, now seen corresponding path program 1 times [2020-07-07 12:33:52,198 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:52,198 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [711783455] [2020-07-07 12:33:52,199 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:52,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,865 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:52,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:52,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:53,030 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 12:33:53,030 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:53,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [711783455] [2020-07-07 12:33:53,035 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:53,035 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:33:53,036 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [377574235] [2020-07-07 12:33:53,041 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:33:53,042 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:53,057 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:33:53,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:53,061 INFO L87 Difference]: Start difference. First operand 304 states. Second operand 3 states. [2020-07-07 12:33:54,268 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:54,268 INFO L93 Difference]: Finished difference Result 461 states and 548 transitions. [2020-07-07 12:33:54,270 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:33:54,272 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:33:54,273 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:54,299 INFO L225 Difference]: With dead ends: 461 [2020-07-07 12:33:54,300 INFO L226 Difference]: Without dead ends: 288 [2020-07-07 12:33:54,306 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 [2020-07-07 12:33:54,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 288 states. [2020-07-07 12:33:54,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 288 to 247. [2020-07-07 12:33:54,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 247 states. [2020-07-07 12:33:54,463 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 247 states to 247 states and 267 transitions. [2020-07-07 12:33:54,466 INFO L78 Accepts]: Start accepts. Automaton has 247 states and 267 transitions. Word has length 153 [2020-07-07 12:33:54,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:54,469 INFO L479 AbstractCegarLoop]: Abstraction has 247 states and 267 transitions. [2020-07-07 12:33:54,469 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:33:54,470 INFO L276 IsEmpty]: Start isEmpty. Operand 247 states and 267 transitions. [2020-07-07 12:33:54,482 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:33:54,482 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:54,483 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 12:33:54,483 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:33:54,483 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:54,483 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:54,484 INFO L82 PathProgramCache]: Analyzing trace with hash -986006503, now seen corresponding path program 1 times [2020-07-07 12:33:54,484 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:54,484 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [332368976] [2020-07-07 12:33:54,485 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:54,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:54,886 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:54,896 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:54,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:54,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:54,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:54,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:54,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:54,947 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:54,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:54,983 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 12:33:54,984 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:54,984 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [332368976] [2020-07-07 12:33:54,985 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:54,985 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:33:54,985 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [511452112] [2020-07-07 12:33:54,988 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:33:54,989 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:54,989 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:33:54,989 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:33:54,989 INFO L87 Difference]: Start difference. First operand 247 states and 267 transitions. Second operand 4 states. [2020-07-07 12:33:55,563 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:56,336 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:56,337 INFO L93 Difference]: Finished difference Result 369 states and 413 transitions. [2020-07-07 12:33:56,337 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:33:56,338 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:33:56,339 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:56,342 INFO L225 Difference]: With dead ends: 369 [2020-07-07 12:33:56,342 INFO L226 Difference]: Without dead ends: 271 [2020-07-07 12:33:56,344 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 12:33:56,345 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 271 states. [2020-07-07 12:33:56,423 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 271 to 237. [2020-07-07 12:33:56,423 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 237 states. [2020-07-07 12:33:56,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 237 states to 237 states and 254 transitions. [2020-07-07 12:33:56,425 INFO L78 Accepts]: Start accepts. Automaton has 237 states and 254 transitions. Word has length 154 [2020-07-07 12:33:56,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:56,426 INFO L479 AbstractCegarLoop]: Abstraction has 237 states and 254 transitions. [2020-07-07 12:33:56,426 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:33:56,426 INFO L276 IsEmpty]: Start isEmpty. Operand 237 states and 254 transitions. [2020-07-07 12:33:56,428 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:33:56,428 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:56,429 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 12:33:56,429 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:33:56,429 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:56,429 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:56,430 INFO L82 PathProgramCache]: Analyzing trace with hash -1560512259, now seen corresponding path program 1 times [2020-07-07 12:33:56,430 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:56,430 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [710432128] [2020-07-07 12:33:56,430 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:56,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:56,756 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:56,781 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:56,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:56,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:56,840 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:56,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:56,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:56,903 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:56,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:56,965 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 12:33:56,965 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:56,966 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [710432128] [2020-07-07 12:33:56,966 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:56,966 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:56,967 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [575035177] [2020-07-07 12:33:56,968 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:56,968 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:56,969 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:56,969 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:56,969 INFO L87 Difference]: Start difference. First operand 237 states and 254 transitions. Second operand 9 states. [2020-07-07 12:33:57,406 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:57,711 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:33:57,970 WARN L193 SmtUtils]: Spent 234.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:33:58,202 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:58,438 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:58,657 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:59,571 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:34:01,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:01,313 INFO L93 Difference]: Finished difference Result 629 states and 719 transitions. [2020-07-07 12:34:01,314 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:34:01,315 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:34:01,315 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:01,320 INFO L225 Difference]: With dead ends: 629 [2020-07-07 12:34:01,320 INFO L226 Difference]: Without dead ends: 502 [2020-07-07 12:34:01,324 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 12:34:01,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 502 states. [2020-07-07 12:34:01,478 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 502 to 427. [2020-07-07 12:34:01,478 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-07-07 12:34:01,481 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 472 transitions. [2020-07-07 12:34:01,481 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 472 transitions. Word has length 163 [2020-07-07 12:34:01,482 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:01,482 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 472 transitions. [2020-07-07 12:34:01,482 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:34:01,482 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 472 transitions. [2020-07-07 12:34:01,485 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-07 12:34:01,485 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:01,485 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] [2020-07-07 12:34:01,485 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:34:01,486 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:01,486 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:01,486 INFO L82 PathProgramCache]: Analyzing trace with hash -1484282150, now seen corresponding path program 1 times [2020-07-07 12:34:01,486 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:01,487 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [369078794] [2020-07-07 12:34:01,487 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:01,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:01,808 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:01,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:01,850 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:01,851 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:01,853 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:01,855 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:01,862 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:01,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:01,872 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:01,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:01,874 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:01,904 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 12:34:01,905 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:01,905 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [369078794] [2020-07-07 12:34:01,905 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:01,906 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:34:01,906 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [366433582] [2020-07-07 12:34:01,906 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:34:01,907 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:01,907 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:34:01,907 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:34:01,907 INFO L87 Difference]: Start difference. First operand 427 states and 472 transitions. Second operand 6 states. [2020-07-07 12:34:02,327 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:03,806 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:34:04,437 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:04,437 INFO L93 Difference]: Finished difference Result 1094 states and 1277 transitions. [2020-07-07 12:34:04,438 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-07-07 12:34:04,438 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 171 [2020-07-07 12:34:04,438 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:04,443 INFO L225 Difference]: With dead ends: 1094 [2020-07-07 12:34:04,444 INFO L226 Difference]: Without dead ends: 777 [2020-07-07 12:34:04,445 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:34:04,447 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 777 states. [2020-07-07 12:34:04,682 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 777 to 661. [2020-07-07 12:34:04,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 661 states. [2020-07-07 12:34:04,686 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 661 states to 661 states and 730 transitions. [2020-07-07 12:34:04,686 INFO L78 Accepts]: Start accepts. Automaton has 661 states and 730 transitions. Word has length 171 [2020-07-07 12:34:04,687 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:04,687 INFO L479 AbstractCegarLoop]: Abstraction has 661 states and 730 transitions. [2020-07-07 12:34:04,687 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:34:04,687 INFO L276 IsEmpty]: Start isEmpty. Operand 661 states and 730 transitions. [2020-07-07 12:34:04,690 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:34:04,690 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:04,690 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 12:34:04,690 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:34:04,690 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:04,691 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:04,691 INFO L82 PathProgramCache]: Analyzing trace with hash -1122738503, now seen corresponding path program 1 times [2020-07-07 12:34:04,691 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:04,691 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [673702269] [2020-07-07 12:34:04,692 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:04,719 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:05,043 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:05,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:05,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:05,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:05,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:05,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:05,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:05,140 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:05,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:05,173 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:05,221 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 12:34:05,221 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:05,222 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [673702269] [2020-07-07 12:34:05,222 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:05,223 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:34:05,223 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1568271757] [2020-07-07 12:34:05,224 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:34:05,224 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:05,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:34:05,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:34:05,225 INFO L87 Difference]: Start difference. First operand 661 states and 730 transitions. Second operand 9 states. [2020-07-07 12:34:05,854 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:07,307 WARN L193 SmtUtils]: Spent 177.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:07,538 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:07,844 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:08,110 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:08,321 WARN L193 SmtUtils]: Spent 185.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:08,562 WARN L193 SmtUtils]: Spent 188.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:08,787 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:09,824 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:09,825 INFO L93 Difference]: Finished difference Result 1698 states and 1975 transitions. [2020-07-07 12:34:09,825 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:34:09,825 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:34:09,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:09,831 INFO L225 Difference]: With dead ends: 1698 [2020-07-07 12:34:09,832 INFO L226 Difference]: Without dead ends: 1147 [2020-07-07 12:34:09,834 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:34:09,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1147 states. [2020-07-07 12:34:10,146 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1147 to 1064. [2020-07-07 12:34:10,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1064 states. [2020-07-07 12:34:10,152 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1064 states to 1064 states and 1191 transitions. [2020-07-07 12:34:10,153 INFO L78 Accepts]: Start accepts. Automaton has 1064 states and 1191 transitions. Word has length 172 [2020-07-07 12:34:10,154 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:10,154 INFO L479 AbstractCegarLoop]: Abstraction has 1064 states and 1191 transitions. [2020-07-07 12:34:10,154 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:34:10,154 INFO L276 IsEmpty]: Start isEmpty. Operand 1064 states and 1191 transitions. [2020-07-07 12:34:10,157 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:34:10,157 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:10,157 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 12:34:10,158 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:34:10,158 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:10,158 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:10,158 INFO L82 PathProgramCache]: Analyzing trace with hash 1199080031, now seen corresponding path program 1 times [2020-07-07 12:34:10,159 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:10,159 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [143875513] [2020-07-07 12:34:10,159 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:10,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:10,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:10,478 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:10,479 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:34:10,479 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:34:10,481 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:34:10,515 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:34:10 BoogieIcfgContainer [2020-07-07 12:34:10,515 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:34:10,519 INFO L168 Benchmark]: Toolchain (without parser) took 20221.58 ms. Allocated memory was 142.1 MB in the beginning and 622.9 MB in the end (delta: 480.8 MB). Free memory was 99.6 MB in the beginning and 70.5 MB in the end (delta: 29.1 MB). Peak memory consumption was 509.9 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:10,519 INFO L168 Benchmark]: CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory is still 118.3 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 12:34:10,525 INFO L168 Benchmark]: CACSL2BoogieTranslator took 567.68 ms. Allocated memory was 142.1 MB in the beginning and 200.8 MB in the end (delta: 58.7 MB). Free memory was 99.2 MB in the beginning and 170.7 MB in the end (delta: -71.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:10,526 INFO L168 Benchmark]: Boogie Preprocessor took 88.17 ms. Allocated memory is still 200.8 MB. Free memory was 170.7 MB in the beginning and 166.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:10,527 INFO L168 Benchmark]: RCFGBuilder took 1130.21 ms. Allocated memory was 200.8 MB in the beginning and 228.1 MB in the end (delta: 27.3 MB). Free memory was 166.1 MB in the beginning and 177.6 MB in the end (delta: -11.6 MB). Peak memory consumption was 91.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:10,528 INFO L168 Benchmark]: TraceAbstraction took 18430.65 ms. Allocated memory was 228.1 MB in the beginning and 622.9 MB in the end (delta: 394.8 MB). Free memory was 177.6 MB in the beginning and 70.5 MB in the end (delta: 107.2 MB). Peak memory consumption was 502.0 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:10,540 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.24 ms. Allocated memory is still 142.1 MB. Free memory is still 118.3 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 567.68 ms. Allocated memory was 142.1 MB in the beginning and 200.8 MB in the end (delta: 58.7 MB). Free memory was 99.2 MB in the beginning and 170.7 MB in the end (delta: -71.6 MB). Peak memory consumption was 25.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 88.17 ms. Allocated memory is still 200.8 MB. Free memory was 170.7 MB in the beginning and 166.1 MB in the end (delta: 4.7 MB). Peak memory consumption was 4.7 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1130.21 ms. Allocated memory was 200.8 MB in the beginning and 228.1 MB in the end (delta: 27.3 MB). Free memory was 166.1 MB in the beginning and 177.6 MB in the end (delta: -11.6 MB). Peak memory consumption was 91.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18430.65 ms. Allocated memory was 228.1 MB in the beginning and 622.9 MB in the end (delta: 394.8 MB). Free memory was 177.6 MB in the beginning and 70.5 MB in the end (delta: 107.2 MB). Peak memory consumption was 502.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 556]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L120] int pumpRunning = 0; [L121] int systemActive = 1; [L324] int cleanupTimeShifts = 4; [L423] int waterLevel = 1; [L424] int methaneLevelCritical = 0; [L730] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L400] int retValue_acc ; [L401] int tmp ; [L405] FCALL select_helpers() [L406] FCALL select_features() [L407] CALL, EXPR valid_product() [L543] int retValue_acc ; [L546] retValue_acc = 1 [L547] return (retValue_acc); [L407] RET, EXPR valid_product() [L407] tmp = valid_product() [L409] COND TRUE \read(tmp) [L411] FCALL setup() [L412] CALL runTest() [L391] CALL test() [L46] int splverifierCounter ; [L47] int tmp ; [L48] int tmp___0 ; [L49] int tmp___1 ; [L50] int tmp___2 ; [L53] splverifierCounter = 0 [L55] COND TRUE 1 [L57] COND TRUE splverifierCounter < 4 [L63] tmp = __VERIFIER_nondet_int() [L65] COND TRUE \read(tmp) [L67] CALL waterRise() [L441] COND TRUE waterLevel < 2 [L442] waterLevel = waterLevel + 1 [L67] RET waterRise() [L73] tmp___0 = __VERIFIER_nondet_int() [L75] COND FALSE !(\read(tmp___0)) [L83] tmp___2 = __VERIFIER_nondet_int() [L85] COND FALSE !(\read(tmp___2)) [L89] tmp___1 = __VERIFIER_nondet_int() [L91] COND TRUE \read(tmp___1) [L93] CALL stopSystem() [L276] COND FALSE !(\read(pumpRunning)) [L283] systemActive = 0 [L93] RET stopSystem() [L100] CALL timeShift() [L128] COND FALSE !(\read(pumpRunning)) [L135] COND FALSE !(\read(systemActive)) [L143] CALL __utac_acc__Specification3_spec__1() [L291] int tmp ; [L292] int tmp___0 ; [L293] int tmp___1 ; [L297] CALL, EXPR isMethaneLevelCritical() [L462] int retValue_acc ; [L465] retValue_acc = methaneLevelCritical [L466] return (retValue_acc); [L297] RET, EXPR isMethaneLevelCritical() [L297] tmp = isMethaneLevelCritical() [L299] COND FALSE !(\read(tmp)) [L303] CALL, EXPR getWaterLevel() [L494] int retValue_acc ; [L497] retValue_acc = waterLevel [L498] return (retValue_acc); [L303] RET, EXPR getWaterLevel() [L303] tmp___0 = getWaterLevel() [L305] COND TRUE tmp___0 == 2 [L307] CALL, EXPR isPumpRunning() [L209] int retValue_acc ; [L212] retValue_acc = pumpRunning [L213] return (retValue_acc); [L307] RET, EXPR isPumpRunning() [L307] tmp___1 = isPumpRunning() [L309] COND FALSE !(\read(tmp___1)) [L313] CALL __automaton_fail() [L556] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 618 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 14.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1175 SDtfs, 1582 SDslu, 1593 SDs, 0 SdLazy, 3345 SolverSat, 488 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 7.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 64 ImplicationChecksByTransitivity, 5.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1064occurred 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: 0.9s AutomataMinimizationTime, 5 MinimizatonAttempts, 349 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...