/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_product55.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-72570d3 [2020-08-22 18:06:00,075 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-08-22 18:06:00,078 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-08-22 18:06:00,101 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-08-22 18:06:00,102 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-08-22 18:06:00,103 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-08-22 18:06:00,104 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-08-22 18:06:00,106 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-08-22 18:06:00,107 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-08-22 18:06:00,108 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-08-22 18:06:00,109 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-08-22 18:06:00,110 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-08-22 18:06:00,110 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-08-22 18:06:00,111 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-08-22 18:06:00,112 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-08-22 18:06:00,113 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-08-22 18:06:00,114 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-08-22 18:06:00,115 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-08-22 18:06:00,116 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-08-22 18:06:00,118 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-08-22 18:06:00,119 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-08-22 18:06:00,120 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-08-22 18:06:00,121 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-08-22 18:06:00,122 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-08-22 18:06:00,124 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-08-22 18:06:00,125 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-08-22 18:06:00,125 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-08-22 18:06:00,126 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-08-22 18:06:00,126 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-08-22 18:06:00,127 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-08-22 18:06:00,127 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-08-22 18:06:00,128 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-08-22 18:06:00,129 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-08-22 18:06:00,129 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-08-22 18:06:00,130 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-08-22 18:06:00,130 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-08-22 18:06:00,131 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-08-22 18:06:00,131 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-08-22 18:06:00,131 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-08-22 18:06:00,132 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-08-22 18:06:00,133 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-08-22 18:06:00,134 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-08-22 18:06:00,143 INFO L113 SettingsManager]: Loading preferences was successful [2020-08-22 18:06:00,143 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-08-22 18:06:00,144 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-08-22 18:06:00,144 INFO L138 SettingsManager]: * sizeof long=4 [2020-08-22 18:06:00,144 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-08-22 18:06:00,145 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-08-22 18:06:00,145 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-08-22 18:06:00,145 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-08-22 18:06:00,145 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-08-22 18:06:00,145 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-08-22 18:06:00,146 INFO L138 SettingsManager]: * sizeof long double=12 [2020-08-22 18:06:00,146 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-08-22 18:06:00,146 INFO L138 SettingsManager]: * Use constant arrays=true [2020-08-22 18:06:00,146 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-08-22 18:06:00,146 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-08-22 18:06:00,146 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-08-22 18:06:00,147 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-08-22 18:06:00,147 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-08-22 18:06:00,147 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-08-22 18:06:00,147 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-08-22 18:06:00,147 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-08-22 18:06:00,148 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-08-22 18:06:00,148 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-08-22 18:06:00,451 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-08-22 18:06:00,463 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-08-22 18:06:00,467 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-08-22 18:06:00,468 INFO L271 PluginConnector]: Initializing CDTParser... [2020-08-22 18:06:00,468 INFO L275 PluginConnector]: CDTParser initialized [2020-08-22 18:06:00,469 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-08-22 18:06:00,543 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/552766bc6/36cefd5d1a6e427283e04bcbdca182ec/FLAG12696cf98 [2020-08-22 18:06:01,112 INFO L306 CDTParser]: Found 1 translation units. [2020-08-22 18:06:01,113 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product55.cil.c [2020-08-22 18:06:01,128 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/552766bc6/36cefd5d1a6e427283e04bcbdca182ec/FLAG12696cf98 [2020-08-22 18:06:01,373 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/552766bc6/36cefd5d1a6e427283e04bcbdca182ec [2020-08-22 18:06:01,382 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-08-22 18:06:01,383 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-08-22 18:06:01,384 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-08-22 18:06:01,384 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-08-22 18:06:01,388 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-08-22 18:06:01,389 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:06:01" (1/1) ... [2020-08-22 18:06:01,392 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@3f4e1eb8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:01, skipping insertion in model container [2020-08-22 18:06:01,392 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.08 06:06:01" (1/1) ... [2020-08-22 18:06:01,400 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-08-22 18:06:01,444 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-08-22 18:06:01,931 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:06:01,957 INFO L203 MainTranslator]: Completed pre-run [2020-08-22 18:06:02,035 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-08-22 18:06:02,071 INFO L208 MainTranslator]: Completed translation [2020-08-22 18:06:02,071 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:02 WrapperNode [2020-08-22 18:06:02,072 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-08-22 18:06:02,072 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-08-22 18:06:02,073 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-08-22 18:06:02,073 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-08-22 18:06:02,086 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:02" (1/1) ... [2020-08-22 18:06:02,086 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:02" (1/1) ... [2020-08-22 18:06:02,105 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:02" (1/1) ... [2020-08-22 18:06:02,106 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:02" (1/1) ... [2020-08-22 18:06:02,150 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:02" (1/1) ... [2020-08-22 18:06:02,173 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:02" (1/1) ... [2020-08-22 18:06:02,178 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:02" (1/1) ... [2020-08-22 18:06:02,186 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-08-22 18:06:02,186 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-08-22 18:06:02,187 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-08-22 18:06:02,187 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-08-22 18:06:02,188 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:02" (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 [2020-08-22 18:06:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-08-22 18:06:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-08-22 18:06:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-08-22 18:06:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-08-22 18:06:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-08-22 18:06:02,247 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-08-22 18:06:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-08-22 18:06:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-08-22 18:06:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-08-22 18:06:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-08-22 18:06:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-08-22 18:06:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-08-22 18:06:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-08-22 18:06:02,248 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-08-22 18:06:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-08-22 18:06:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-08-22 18:06:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-08-22 18:06:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-08-22 18:06:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-08-22 18:06:02,249 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-08-22 18:06:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-08-22 18:06:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-08-22 18:06:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-08-22 18:06:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-08-22 18:06:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-08-22 18:06:02,250 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-08-22 18:06:02,251 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-08-22 18:06:02,251 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-08-22 18:06:02,251 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-08-22 18:06:02,251 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 18:06:02,251 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 18:06:02,251 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-08-22 18:06:02,251 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-08-22 18:06:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-08-22 18:06:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-08-22 18:06:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-08-22 18:06:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-08-22 18:06:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-08-22 18:06:02,252 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-08-22 18:06:02,253 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-08-22 18:06:02,253 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:06:02,253 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-08-22 18:06:02,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-08-22 18:06:02,253 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-08-22 18:06:02,253 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-08-22 18:06:02,253 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-08-22 18:06:02,254 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-08-22 18:06:02,254 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-08-22 18:06:02,254 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-08-22 18:06:02,254 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-08-22 18:06:02,254 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-08-22 18:06:02,254 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-08-22 18:06:02,254 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-08-22 18:06:02,255 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-08-22 18:06:02,255 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-08-22 18:06:02,255 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-08-22 18:06:02,255 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-08-22 18:06:02,255 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-08-22 18:06:02,255 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-08-22 18:06:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-08-22 18:06:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-08-22 18:06:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-08-22 18:06:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-08-22 18:06:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-08-22 18:06:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-08-22 18:06:02,256 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-08-22 18:06:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-08-22 18:06:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-08-22 18:06:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-08-22 18:06:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-08-22 18:06:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-08-22 18:06:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-08-22 18:06:02,257 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-08-22 18:06:02,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-08-22 18:06:02,258 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-08-22 18:06:02,258 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-08-22 18:06:02,258 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-08-22 18:06:02,258 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-08-22 18:06:02,258 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-08-22 18:06:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-08-22 18:06:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-08-22 18:06:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-08-22 18:06:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-08-22 18:06:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-08-22 18:06:02,259 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-08-22 18:06:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-08-22 18:06:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-08-22 18:06:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-08-22 18:06:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-08-22 18:06:02,260 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-08-22 18:06:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-08-22 18:06:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2020-08-22 18:06:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-08-22 18:06:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__lowWaterSensor [2020-08-22 18:06:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-08-22 18:06:02,261 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-08-22 18:06:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-08-22 18:06:02,262 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-08-22 18:06:03,344 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-08-22 18:06:03,344 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-08-22 18:06:03,351 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:06:03 BoogieIcfgContainer [2020-08-22 18:06:03,351 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-08-22 18:06:03,352 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-08-22 18:06:03,353 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-08-22 18:06:03,356 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-08-22 18:06:03,356 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.08 06:06:01" (1/3) ... [2020-08-22 18:06:03,357 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442d181f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:06:03, skipping insertion in model container [2020-08-22 18:06:03,357 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.08 06:06:02" (2/3) ... [2020-08-22 18:06:03,358 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@442d181f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.08 06:06:03, skipping insertion in model container [2020-08-22 18:06:03,358 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.08 06:06:03" (3/3) ... [2020-08-22 18:06:03,359 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product55.cil.c [2020-08-22 18:06:03,370 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-08-22 18:06:03,379 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-08-22 18:06:03,393 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-08-22 18:06:03,416 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-08-22 18:06:03,416 INFO L376 AbstractCegarLoop]: Hoare is true [2020-08-22 18:06:03,416 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-08-22 18:06:03,416 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-08-22 18:06:03,417 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-08-22 18:06:03,417 INFO L380 AbstractCegarLoop]: Difference is false [2020-08-22 18:06:03,417 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-08-22 18:06:03,417 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-08-22 18:06:03,442 INFO L276 IsEmpty]: Start isEmpty. Operand 349 states. [2020-08-22 18:06:03,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-08-22 18:06:03,464 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:03,465 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] [2020-08-22 18:06:03,466 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:03,472 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:03,473 INFO L82 PathProgramCache]: Analyzing trace with hash 1599034145, now seen corresponding path program 1 times [2020-08-22 18:06:03,482 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:03,482 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2041955331] [2020-08-22 18:06:03,483 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:03,551 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:03,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:04,158 WARN L193 SmtUtils]: Spent 251.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:06:04,161 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:06:04,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:04,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:06:04,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:04,312 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:06:04,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:04,314 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:06:04,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:04,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:06:04,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:04,326 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-08-22 18:06:04,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:04,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:06:04,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:04,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:06:04,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:04,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:06:04,378 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2041955331] [2020-08-22 18:06:04,380 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:06:04,381 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-08-22 18:06:04,381 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1286645540] [2020-08-22 18:06:04,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-08-22 18:06:04,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:06:04,404 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-08-22 18:06:04,405 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-08-22 18:06:04,408 INFO L87 Difference]: Start difference. First operand 349 states. Second operand 3 states. [2020-08-22 18:06:05,948 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:06:05,948 INFO L93 Difference]: Finished difference Result 567 states and 676 transitions. [2020-08-22 18:06:05,949 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-08-22 18:06:05,950 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-08-22 18:06:05,952 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:06:05,983 INFO L225 Difference]: With dead ends: 567 [2020-08-22 18:06:05,983 INFO L226 Difference]: Without dead ends: 343 [2020-08-22 18:06:05,993 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 [2020-08-22 18:06:06,014 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 343 states. [2020-08-22 18:06:06,224 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 343 to 298. [2020-08-22 18:06:06,226 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 298 states. [2020-08-22 18:06:06,229 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 298 states to 298 states and 328 transitions. [2020-08-22 18:06:06,231 INFO L78 Accepts]: Start accepts. Automaton has 298 states and 328 transitions. Word has length 153 [2020-08-22 18:06:06,234 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:06,235 INFO L479 AbstractCegarLoop]: Abstraction has 298 states and 328 transitions. [2020-08-22 18:06:06,235 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-08-22 18:06:06,235 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states and 328 transitions. [2020-08-22 18:06:06,248 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-08-22 18:06:06,248 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:06,249 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] [2020-08-22 18:06:06,249 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-08-22 18:06:06,249 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:06,250 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:06,250 INFO L82 PathProgramCache]: Analyzing trace with hash 1907459970, now seen corresponding path program 1 times [2020-08-22 18:06:06,250 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:06,251 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2032530809] [2020-08-22 18:06:06,251 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:06,254 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:06,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:06,719 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:06:06,721 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:06:06,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:06,756 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:06:06,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:06,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:06:06,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:06,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:06:06,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:06,761 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:06:06,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:06,763 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2020-08-22 18:06:06,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:06,765 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-08-22 18:06:06,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:06,766 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-08-22 18:06:06,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:06,793 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:06:06,794 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2032530809] [2020-08-22 18:06:06,794 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:06:06,794 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-08-22 18:06:06,795 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [138912370] [2020-08-22 18:06:06,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-08-22 18:06:06,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:06:06,796 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-08-22 18:06:06,797 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-08-22 18:06:06,797 INFO L87 Difference]: Start difference. First operand 298 states and 328 transitions. Second operand 4 states. [2020-08-22 18:06:07,390 WARN L193 SmtUtils]: Spent 228.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:06:08,543 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:06:08,544 INFO L93 Difference]: Finished difference Result 478 states and 543 transitions. [2020-08-22 18:06:08,544 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-08-22 18:06:08,545 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-08-22 18:06:08,546 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:06:08,550 INFO L225 Difference]: With dead ends: 478 [2020-08-22 18:06:08,550 INFO L226 Difference]: Without dead ends: 326 [2020-08-22 18:06:08,552 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 [2020-08-22 18:06:08,553 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 326 states. [2020-08-22 18:06:08,633 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 326 to 288. [2020-08-22 18:06:08,633 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 288 states. [2020-08-22 18:06:08,635 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 288 states to 288 states and 315 transitions. [2020-08-22 18:06:08,635 INFO L78 Accepts]: Start accepts. Automaton has 288 states and 315 transitions. Word has length 154 [2020-08-22 18:06:08,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:08,636 INFO L479 AbstractCegarLoop]: Abstraction has 288 states and 315 transitions. [2020-08-22 18:06:08,636 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-08-22 18:06:08,636 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states and 315 transitions. [2020-08-22 18:06:08,638 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-08-22 18:06:08,639 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:08,639 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-08-22 18:06:08,639 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-08-22 18:06:08,639 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:08,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:08,640 INFO L82 PathProgramCache]: Analyzing trace with hash -383907644, now seen corresponding path program 1 times [2020-08-22 18:06:08,640 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:08,640 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [308104085] [2020-08-22 18:06:08,641 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:08,643 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:08,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:08,982 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:06:08,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:06:09,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:06:09,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,065 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:06:09,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,068 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:06:09,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,114 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:06:09,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,116 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-08-22 18:06:09,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,120 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-08-22 18:06:09,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 151 [2020-08-22 18:06:09,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:09,189 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:06:09,190 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [308104085] [2020-08-22 18:06:09,190 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:06:09,191 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:06:09,191 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [549439125] [2020-08-22 18:06:09,192 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:06:09,193 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:06:09,193 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:06:09,194 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:06:09,194 INFO L87 Difference]: Start difference. First operand 288 states and 315 transitions. Second operand 9 states. [2020-08-22 18:06:09,839 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:06:10,289 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-08-22 18:06:10,671 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-08-22 18:06:10,900 WARN L193 SmtUtils]: Spent 193.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:11,128 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:06:11,361 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:12,371 WARN L193 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-08-22 18:06:15,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:06:15,073 INFO L93 Difference]: Finished difference Result 790 states and 914 transitions. [2020-08-22 18:06:15,074 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-08-22 18:06:15,074 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-08-22 18:06:15,075 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:06:15,080 INFO L225 Difference]: With dead ends: 790 [2020-08-22 18:06:15,081 INFO L226 Difference]: Without dead ends: 612 [2020-08-22 18:06:15,082 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-08-22 18:06:15,083 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 612 states. [2020-08-22 18:06:15,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 612 to 541. [2020-08-22 18:06:15,263 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 541 states. [2020-08-22 18:06:15,266 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 541 states to 541 states and 610 transitions. [2020-08-22 18:06:15,266 INFO L78 Accepts]: Start accepts. Automaton has 541 states and 610 transitions. Word has length 163 [2020-08-22 18:06:15,267 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:15,267 INFO L479 AbstractCegarLoop]: Abstraction has 541 states and 610 transitions. [2020-08-22 18:06:15,267 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:06:15,268 INFO L276 IsEmpty]: Start isEmpty. Operand 541 states and 610 transitions. [2020-08-22 18:06:15,271 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-08-22 18:06:15,271 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:15,271 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] [2020-08-22 18:06:15,272 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-08-22 18:06:15,272 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:15,272 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:15,272 INFO L82 PathProgramCache]: Analyzing trace with hash 621095136, now seen corresponding path program 1 times [2020-08-22 18:06:15,273 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:15,273 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1275541123] [2020-08-22 18:06:15,273 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:15,276 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:15,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,552 WARN L193 SmtUtils]: Spent 173.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-08-22 18:06:15,553 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-08-22 18:06:15,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,614 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-08-22 18:06:15,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-08-22 18:06:15,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,619 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-08-22 18:06:15,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,621 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-08-22 18:06:15,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,632 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-08-22 18:06:15,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,635 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-08-22 18:06:15,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-08-22 18:06:15,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,665 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-08-22 18:06:15,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-08-22 18:06:15,700 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-08-22 18:06:15,700 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1275541123] [2020-08-22 18:06:15,700 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-08-22 18:06:15,701 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-08-22 18:06:15,701 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1175423594] [2020-08-22 18:06:15,702 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-08-22 18:06:15,703 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-08-22 18:06:15,703 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-08-22 18:06:15,704 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-08-22 18:06:15,705 INFO L87 Difference]: Start difference. First operand 541 states and 610 transitions. Second operand 9 states. [2020-08-22 18:06:16,247 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:06:18,375 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:18,648 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:06:18,956 WARN L193 SmtUtils]: Spent 204.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:19,250 WARN L193 SmtUtils]: Spent 189.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-08-22 18:06:19,477 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-08-22 18:06:19,747 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:19,973 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-08-22 18:06:20,933 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-08-22 18:06:20,934 INFO L93 Difference]: Finished difference Result 1490 states and 1799 transitions. [2020-08-22 18:06:20,934 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-08-22 18:06:20,935 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-08-22 18:06:20,935 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-08-22 18:06:20,942 INFO L225 Difference]: With dead ends: 1490 [2020-08-22 18:06:20,943 INFO L226 Difference]: Without dead ends: 1059 [2020-08-22 18:06:20,945 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-08-22 18:06:20,947 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1059 states. [2020-08-22 18:06:21,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1059 to 955. [2020-08-22 18:06:21,241 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 955 states. [2020-08-22 18:06:21,246 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 955 states to 955 states and 1103 transitions. [2020-08-22 18:06:21,247 INFO L78 Accepts]: Start accepts. Automaton has 955 states and 1103 transitions. Word has length 172 [2020-08-22 18:06:21,248 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-08-22 18:06:21,248 INFO L479 AbstractCegarLoop]: Abstraction has 955 states and 1103 transitions. [2020-08-22 18:06:21,248 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-08-22 18:06:21,248 INFO L276 IsEmpty]: Start isEmpty. Operand 955 states and 1103 transitions. [2020-08-22 18:06:21,253 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-08-22 18:06:21,253 INFO L414 BasicCegarLoop]: Found error trace [2020-08-22 18:06:21,253 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] [2020-08-22 18:06:21,254 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-08-22 18:06:21,254 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-08-22 18:06:21,254 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-08-22 18:06:21,254 INFO L82 PathProgramCache]: Analyzing trace with hash 1515693883, now seen corresponding path program 1 times [2020-08-22 18:06:21,255 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-08-22 18:06:21,255 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [470631034] [2020-08-22 18:06:21,255 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-08-22 18:06:21,258 INFO L288 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-08-22 18:06:21,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:06:21,319 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:06:21,379 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-08-22 18:06:21,379 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-08-22 18:06:21,627 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-08-22 18:06:21,627 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-08-22 18:06:21,628 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-08-22 18:06:21,655 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.08 06:06:21 BoogieIcfgContainer [2020-08-22 18:06:21,655 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-08-22 18:06:21,657 INFO L168 Benchmark]: Toolchain (without parser) took 20274.02 ms. Allocated memory was 145.2 MB in the beginning and 627.6 MB in the end (delta: 482.3 MB). Free memory was 101.5 MB in the beginning and 384.1 MB in the end (delta: -282.6 MB). Peak memory consumption was 199.8 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:21,658 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. [2020-08-22 18:06:21,659 INFO L168 Benchmark]: CACSL2BoogieTranslator took 688.05 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 101.3 MB in the beginning and 169.4 MB in the end (delta: -68.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:21,660 INFO L168 Benchmark]: Boogie Preprocessor took 113.59 ms. Allocated memory is still 201.9 MB. Free memory was 169.4 MB in the beginning and 165.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:21,661 INFO L168 Benchmark]: RCFGBuilder took 1164.95 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 165.3 MB in the beginning and 171.3 MB in the end (delta: -5.9 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:21,662 INFO L168 Benchmark]: TraceAbstraction took 18302.80 ms. Allocated memory was 233.8 MB in the beginning and 627.6 MB in the end (delta: 393.7 MB). Free memory was 171.3 MB in the beginning and 384.1 MB in the end (delta: -212.9 MB). Peak memory consumption was 180.9 MB. Max. memory is 7.1 GB. [2020-08-22 18:06:21,666 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 145.2 MB. Free memory was 121.0 MB in the beginning and 120.8 MB in the end (delta: 209.8 kB). Peak memory consumption was 209.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 688.05 ms. Allocated memory was 145.2 MB in the beginning and 201.9 MB in the end (delta: 56.6 MB). Free memory was 101.3 MB in the beginning and 169.4 MB in the end (delta: -68.1 MB). Peak memory consumption was 26.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 113.59 ms. Allocated memory is still 201.9 MB. Free memory was 169.4 MB in the beginning and 165.3 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1164.95 ms. Allocated memory was 201.9 MB in the beginning and 233.8 MB in the end (delta: 32.0 MB). Free memory was 165.3 MB in the beginning and 171.3 MB in the end (delta: -5.9 MB). Peak memory consumption was 84.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 18302.80 ms. Allocated memory was 233.8 MB in the beginning and 627.6 MB in the end (delta: 393.7 MB). Free memory was 171.3 MB in the beginning and 384.1 MB in the end (delta: -212.9 MB). Peak memory consumption was 180.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 193]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L86] int waterLevel = 1; [L87] int methaneLevelCritical = 0; [L367] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L564] int cleanupTimeShifts = 4; [L667] int pumpRunning = 0; [L668] int systemActive = 1; [L640] int retValue_acc ; [L641] int tmp ; [L645] FCALL select_helpers() [L646] FCALL select_features() [L647] CALL, EXPR valid_product() [L69] int retValue_acc ; [L72] retValue_acc = 1 [L73] return (retValue_acc); [L647] RET, EXPR valid_product() [L647] tmp = valid_product() [L649] COND TRUE \read(tmp) [L651] FCALL setup() [L652] CALL runTest() [L634] CALL test() [L941] int splverifierCounter ; [L942] int tmp ; [L943] int tmp___0 ; [L944] int tmp___1 ; [L945] int tmp___2 ; [L948] splverifierCounter = 0 [L950] COND TRUE 1 [L952] COND TRUE splverifierCounter < 4 [L958] tmp = __VERIFIER_nondet_int() [L960] COND TRUE \read(tmp) [L962] CALL waterRise() [L104] COND TRUE waterLevel < 2 [L105] waterLevel = waterLevel + 1 [L962] RET waterRise() [L968] tmp___0 = __VERIFIER_nondet_int() [L970] COND FALSE !(\read(tmp___0)) [L978] tmp___2 = __VERIFIER_nondet_int() [L980] COND FALSE !(\read(tmp___2)) [L984] tmp___1 = __VERIFIER_nondet_int() [L986] COND TRUE \read(tmp___1) [L988] CALL stopSystem() [L894] COND FALSE !(\read(pumpRunning)) [L901] systemActive = 0 [L988] RET stopSystem() [L995] CALL timeShift() [L675] COND FALSE !(\read(pumpRunning)) [L682] COND FALSE !(\read(systemActive)) [L690] CALL __utac_acc__Specification3_spec__1() [L907] int tmp ; [L908] int tmp___0 ; [L909] int tmp___1 ; [L913] CALL, EXPR isMethaneLevelCritical() [L125] int retValue_acc ; [L128] retValue_acc = methaneLevelCritical [L129] return (retValue_acc); [L913] RET, EXPR isMethaneLevelCritical() [L913] tmp = isMethaneLevelCritical() [L915] COND FALSE !(\read(tmp)) [L919] CALL, EXPR getWaterLevel() [L157] int retValue_acc ; [L160] retValue_acc = waterLevel [L161] return (retValue_acc); [L919] RET, EXPR getWaterLevel() [L919] tmp___0 = getWaterLevel() [L921] COND TRUE tmp___0 == 2 [L923] CALL, EXPR isPumpRunning() [L808] int retValue_acc ; [L811] retValue_acc = pumpRunning [L812] return (retValue_acc); [L923] RET, EXPR isPumpRunning() [L923] tmp___1 = isPumpRunning() [L925] COND FALSE !(\read(tmp___1)) [L929] CALL __automaton_fail() [L193] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 661 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 18.2s, OverallIterations: 5, TraceHistogramMax: 1, AutomataDifference: 14.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1138 SDtfs, 1684 SDslu, 1301 SDs, 0 SdLazy, 3726 SolverSat, 569 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 113 GetRequests, 78 SyntacticMatches, 1 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 48 ImplicationChecksByTransitivity, 4.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=955occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.7s AutomataMinimizationTime, 4 MinimizatonAttempts, 258 StatesRemovedByMinimization, 4 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...