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/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:31:21,515 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:31:21,517 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:31:21,528 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:31:21,529 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:31:21,530 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:31:21,531 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:31:21,533 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:31:21,534 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:31:21,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:31:21,536 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:31:21,537 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:31:21,537 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:31:21,540 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:31:21,541 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:31:21,542 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:31:21,547 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:31:21,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:31:21,552 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:31:21,557 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:31:21,561 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:31:21,562 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:31:21,565 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:31:21,566 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:31:21,570 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:31:21,571 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:31:21,571 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:31:21,572 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:31:21,572 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:31:21,574 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:31:21,575 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:31:21,575 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:31:21,578 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:31:21,579 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:31:21,580 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:31:21,580 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:31:21,581 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:31:21,582 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:31:21,582 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:31:21,583 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:31:21,587 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:31:21,587 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:31:21,616 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:31:21,617 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:31:21,617 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:31:21,617 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:31:21,618 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:31:21,618 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:31:21,618 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:31:21,619 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:31:21,619 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:31:21,619 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:31:21,622 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:31:21,622 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:31:21,622 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:31:21,622 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:31:21,623 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:31:21,623 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:31:21,623 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:31:21,623 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:31:21,623 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:31:21,624 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:31:21,624 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:31:21,624 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:31:21,624 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:31:21,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:31:21,625 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:31:21,625 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:31:21,625 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:31:21,625 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:31:21,626 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:31:21,626 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:31:21,659 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:31:21,674 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:31:21,678 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:31:21,680 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:31:21,680 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:31:21,681 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product28.cil.c [2019-09-20 13:31:21,738 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/125484117/28dd5fbfa9914dceab9c13037252352f/FLAG220fcac1c [2019-09-20 13:31:22,236 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:31:22,236 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product28.cil.c [2019-09-20 13:31:22,250 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/125484117/28dd5fbfa9914dceab9c13037252352f/FLAG220fcac1c [2019-09-20 13:31:22,522 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/125484117/28dd5fbfa9914dceab9c13037252352f [2019-09-20 13:31:22,531 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:31:22,532 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:31:22,533 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:22,533 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:31:22,536 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:31:22,537 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:22" (1/1) ... [2019-09-20 13:31:22,541 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6f315885 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:22, skipping insertion in model container [2019-09-20 13:31:22,541 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:31:22" (1/1) ... [2019-09-20 13:31:22,549 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:31:22,610 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:31:23,034 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:23,049 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:31:23,134 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:31:23,175 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:31:23,176 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:23 WrapperNode [2019-09-20 13:31:23,176 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:31:23,177 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:31:23,177 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:31:23,177 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:31:23,190 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:23" (1/1) ... [2019-09-20 13:31:23,190 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:23" (1/1) ... [2019-09-20 13:31:23,209 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:23" (1/1) ... [2019-09-20 13:31:23,209 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:23" (1/1) ... [2019-09-20 13:31:23,239 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:23" (1/1) ... [2019-09-20 13:31:23,249 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:23" (1/1) ... [2019-09-20 13:31:23,254 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:23" (1/1) ... [2019-09-20 13:31:23,264 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:31:23,266 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:31:23,267 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:31:23,267 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:31:23,268 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:23" (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 [2019-09-20 13:31:23,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:31:23,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:31:23,331 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:23,331 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:31:23,332 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:31:23,332 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:31:23,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:31:23,332 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:31:23,332 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:31:23,332 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:31:23,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:23,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:23,333 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:23,333 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:31:23,333 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:31:23,333 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:31:23,334 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:31:23,334 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:31:23,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:23,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:23,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:23,334 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:31:23,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:31:23,335 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:31:23,335 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:31:23,335 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:31:23,335 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:31:23,335 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:31:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:31:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:31:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:31:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:31:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:23,336 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:31:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:31:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:31:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:31:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:31:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:31:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:31:23,337 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:31:23,338 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:31:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:31:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:31:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:31:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:31:23,338 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:31:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:31:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:31:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:31:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:31:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:31:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:31:23,339 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:31:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:31:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-09-20 13:31:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-09-20 13:31:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-09-20 13:31:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:31:23,340 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:31:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:31:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:31:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:31:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:31:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:31:23,341 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:31:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:31:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:31:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:31:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:31:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:31:23,342 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:31:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:31:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:31:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:31:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:31:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:31:23,343 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:31:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:31:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:31:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:31:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:31:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:31:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:31:23,344 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:31:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:31:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:31:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:31:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:31:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:31:23,345 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:31:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:31:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:31:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:31:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:31:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:31:23,346 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:31:23,347 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:31:24,280 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:31:24,280 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:31:24,282 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:24 BoogieIcfgContainer [2019-09-20 13:31:24,282 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:31:24,283 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:31:24,283 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:31:24,286 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:31:24,287 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:31:22" (1/3) ... [2019-09-20 13:31:24,288 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56653676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:24, skipping insertion in model container [2019-09-20 13:31:24,288 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:31:23" (2/3) ... [2019-09-20 13:31:24,289 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@56653676 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:31:24, skipping insertion in model container [2019-09-20 13:31:24,289 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:31:24" (3/3) ... [2019-09-20 13:31:24,291 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product28.cil.c [2019-09-20 13:31:24,300 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:31:24,310 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:31:24,327 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:31:24,362 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:31:24,363 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:31:24,363 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:31:24,364 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:31:24,364 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:31:24,365 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:31:24,365 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:31:24,365 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:31:24,389 INFO L276 IsEmpty]: Start isEmpty. Operand 167 states. [2019-09-20 13:31:24,407 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-09-20 13:31:24,407 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:24,408 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:24,411 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:24,416 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:24,417 INFO L82 PathProgramCache]: Analyzing trace with hash 176643797, now seen corresponding path program 1 times [2019-09-20 13:31:24,419 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:24,471 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:24,472 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:24,472 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:24,472 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:24,647 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:24,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:24,760 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:24,760 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:31:24,761 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:24,770 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:31:24,787 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:31:24,788 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:24,791 INFO L87 Difference]: Start difference. First operand 167 states. Second operand 2 states. [2019-09-20 13:31:24,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:24,839 INFO L93 Difference]: Finished difference Result 135 states and 157 transitions. [2019-09-20 13:31:24,839 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:31:24,840 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-09-20 13:31:24,841 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:24,856 INFO L225 Difference]: With dead ends: 135 [2019-09-20 13:31:24,856 INFO L226 Difference]: Without dead ends: 124 [2019-09-20 13:31:24,857 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:31:24,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2019-09-20 13:31:24,900 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2019-09-20 13:31:24,902 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2019-09-20 13:31:24,904 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 145 transitions. [2019-09-20 13:31:24,905 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 145 transitions. Word has length 59 [2019-09-20 13:31:24,905 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:24,906 INFO L475 AbstractCegarLoop]: Abstraction has 124 states and 145 transitions. [2019-09-20 13:31:24,906 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:31:24,906 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 145 transitions. [2019-09-20 13:31:24,909 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-09-20 13:31:24,910 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:24,910 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:24,910 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:24,911 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:24,911 INFO L82 PathProgramCache]: Analyzing trace with hash -464202477, now seen corresponding path program 1 times [2019-09-20 13:31:24,911 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:24,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:24,914 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:24,914 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:24,914 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:24,951 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:25,029 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:25,030 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:25,030 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:31:25,030 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:25,033 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:31:25,033 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:31:25,034 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:25,034 INFO L87 Difference]: Start difference. First operand 124 states and 145 transitions. Second operand 3 states. [2019-09-20 13:31:25,073 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:25,074 INFO L93 Difference]: Finished difference Result 115 states and 133 transitions. [2019-09-20 13:31:25,075 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:31:25,075 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-09-20 13:31:25,076 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:25,079 INFO L225 Difference]: With dead ends: 115 [2019-09-20 13:31:25,079 INFO L226 Difference]: Without dead ends: 115 [2019-09-20 13:31:25,080 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:31:25,081 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2019-09-20 13:31:25,096 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 115. [2019-09-20 13:31:25,096 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 115 states. [2019-09-20 13:31:25,099 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 115 states to 115 states and 133 transitions. [2019-09-20 13:31:25,099 INFO L78 Accepts]: Start accepts. Automaton has 115 states and 133 transitions. Word has length 60 [2019-09-20 13:31:25,099 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:25,100 INFO L475 AbstractCegarLoop]: Abstraction has 115 states and 133 transitions. [2019-09-20 13:31:25,100 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:31:25,100 INFO L276 IsEmpty]: Start isEmpty. Operand 115 states and 133 transitions. [2019-09-20 13:31:25,105 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-09-20 13:31:25,105 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:25,107 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:25,107 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:25,108 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:25,108 INFO L82 PathProgramCache]: Analyzing trace with hash -1980183215, now seen corresponding path program 1 times [2019-09-20 13:31:25,108 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:25,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:25,111 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:25,111 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:25,111 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:25,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:25,271 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-09-20 13:31:25,271 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:25,271 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:25,271 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:25,272 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:25,272 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:25,272 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:25,273 INFO L87 Difference]: Start difference. First operand 115 states and 133 transitions. Second operand 7 states. [2019-09-20 13:31:25,699 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:25,699 INFO L93 Difference]: Finished difference Result 258 states and 310 transitions. [2019-09-20 13:31:25,700 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:31:25,700 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 65 [2019-09-20 13:31:25,701 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:25,704 INFO L225 Difference]: With dead ends: 258 [2019-09-20 13:31:25,704 INFO L226 Difference]: Without dead ends: 258 [2019-09-20 13:31:25,705 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:31:25,706 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 258 states. [2019-09-20 13:31:25,746 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 258 to 246. [2019-09-20 13:31:25,747 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 246 states. [2019-09-20 13:31:25,749 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 246 states to 246 states and 298 transitions. [2019-09-20 13:31:25,771 INFO L78 Accepts]: Start accepts. Automaton has 246 states and 298 transitions. Word has length 65 [2019-09-20 13:31:25,771 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:25,772 INFO L475 AbstractCegarLoop]: Abstraction has 246 states and 298 transitions. [2019-09-20 13:31:25,772 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:25,772 INFO L276 IsEmpty]: Start isEmpty. Operand 246 states and 298 transitions. [2019-09-20 13:31:25,782 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-09-20 13:31:25,782 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:31:25,783 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:31:25,783 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:31:25,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:31:25,783 INFO L82 PathProgramCache]: Analyzing trace with hash 1204188044, now seen corresponding path program 1 times [2019-09-20 13:31:25,784 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:31:25,788 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:25,788 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:31:25,789 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:31:25,789 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:31:25,837 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:31:25,971 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:31:25,971 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:31:25,972 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:31:25,972 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:31:25,973 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:31:25,973 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:31:25,973 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:31:25,974 INFO L87 Difference]: Start difference. First operand 246 states and 298 transitions. Second operand 7 states. [2019-09-20 13:31:26,421 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:31:26,422 INFO L93 Difference]: Finished difference Result 192 states and 220 transitions. [2019-09-20 13:31:26,422 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:31:26,422 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2019-09-20 13:31:26,423 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:31:26,423 INFO L225 Difference]: With dead ends: 192 [2019-09-20 13:31:26,423 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:31:26,424 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:31:26,424 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:31:26,424 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:31:26,425 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:31:26,425 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:31:26,426 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 70 [2019-09-20 13:31:26,426 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:31:26,426 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:31:26,430 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:31:26,431 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:31:26,431 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:31:26,438 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:31:26 BoogieIcfgContainer [2019-09-20 13:31:26,438 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:31:26,442 INFO L168 Benchmark]: Toolchain (without parser) took 3908.01 ms. Allocated memory was 131.6 MB in the beginning and 264.8 MB in the end (delta: 133.2 MB). Free memory was 85.2 MB in the beginning and 160.3 MB in the end (delta: -75.0 MB). Peak memory consumption was 58.1 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:26,444 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 131.6 MB. Free memory was 104.6 MB in the beginning and 104.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:31:26,445 INFO L168 Benchmark]: CACSL2BoogieTranslator took 643.63 ms. Allocated memory was 131.6 MB in the beginning and 199.8 MB in the end (delta: 68.2 MB). Free memory was 85.0 MB in the beginning and 163.8 MB in the end (delta: -78.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:26,447 INFO L168 Benchmark]: Boogie Preprocessor took 87.07 ms. Allocated memory is still 199.8 MB. Free memory was 163.8 MB in the beginning and 158.3 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:26,448 INFO L168 Benchmark]: RCFGBuilder took 1015.39 ms. Allocated memory was 199.8 MB in the beginning and 221.2 MB in the end (delta: 21.5 MB). Free memory was 158.3 MB in the beginning and 187.7 MB in the end (delta: -29.4 MB). Peak memory consumption was 90.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:26,450 INFO L168 Benchmark]: TraceAbstraction took 2155.11 ms. Allocated memory was 221.2 MB in the beginning and 264.8 MB in the end (delta: 43.5 MB). Free memory was 187.7 MB in the beginning and 160.3 MB in the end (delta: 27.4 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:31:26,458 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.21 ms. Allocated memory is still 131.6 MB. Free memory was 104.6 MB in the beginning and 104.4 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 643.63 ms. Allocated memory was 131.6 MB in the beginning and 199.8 MB in the end (delta: 68.2 MB). Free memory was 85.0 MB in the beginning and 163.8 MB in the end (delta: -78.7 MB). Peak memory consumption was 26.4 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.07 ms. Allocated memory is still 199.8 MB. Free memory was 163.8 MB in the beginning and 158.3 MB in the end (delta: 5.5 MB). Peak memory consumption was 5.5 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1015.39 ms. Allocated memory was 199.8 MB in the beginning and 221.2 MB in the end (delta: 21.5 MB). Free memory was 158.3 MB in the beginning and 187.7 MB in the end (delta: -29.4 MB). Peak memory consumption was 90.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2155.11 ms. Allocated memory was 221.2 MB in the beginning and 264.8 MB in the end (delta: 43.5 MB). Free memory was 187.7 MB in the beginning and 160.3 MB in the end (delta: 27.4 MB). Peak memory consumption was 70.9 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 695]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 241 locations, 1 error locations. SAFE Result, 2.0s OverallTime, 4 OverallIterations, 2 TraceHistogramMax, 1.0s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 542 SDtfs, 310 SDslu, 824 SDs, 0 SdLazy, 397 SolverSat, 78 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 35 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 18 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=246occurred in iteration=3, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 4 MinimizatonAttempts, 12 StatesRemovedByMinimization, 1 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.3s InterpolantComputationTime, 254 NumberOfCodeBlocks, 254 NumberOfCodeBlocksAsserted, 4 NumberOfCheckSat, 250 ConstructedInterpolants, 0 QuantifiedInterpolants, 26598 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 4 InterpolantComputations, 4 PerfectInterpolantSequences, 12/12 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...