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_spec1_product32.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-efa34d5 [2019-09-16 17:07:55,400 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-16 17:07:55,402 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-16 17:07:55,414 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-16 17:07:55,414 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-16 17:07:55,415 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-16 17:07:55,417 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-16 17:07:55,419 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-16 17:07:55,420 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-16 17:07:55,421 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-16 17:07:55,422 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-16 17:07:55,423 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-16 17:07:55,424 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-16 17:07:55,425 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-16 17:07:55,426 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-16 17:07:55,427 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-16 17:07:55,428 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-16 17:07:55,429 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-16 17:07:55,430 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-16 17:07:55,432 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-16 17:07:55,434 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-16 17:07:55,435 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-16 17:07:55,436 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-16 17:07:55,437 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-16 17:07:55,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-16 17:07:55,440 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-16 17:07:55,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-16 17:07:55,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-16 17:07:55,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-16 17:07:55,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-16 17:07:55,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-16 17:07:55,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-16 17:07:55,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-16 17:07:55,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-16 17:07:55,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-16 17:07:55,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-16 17:07:55,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-16 17:07:55,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-16 17:07:55,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-16 17:07:55,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-16 17:07:55,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-16 17:07:55,450 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 [2019-09-16 17:07:55,464 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-16 17:07:55,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-16 17:07:55,465 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-16 17:07:55,465 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-16 17:07:55,466 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-16 17:07:55,466 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-16 17:07:55,466 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-16 17:07:55,468 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-16 17:07:55,468 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-16 17:07:55,469 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-16 17:07:55,470 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-16 17:07:55,471 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-16 17:07:55,471 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-16 17:07:55,471 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-16 17:07:55,472 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-16 17:07:55,472 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-16 17:07:55,472 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-16 17:07:55,472 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-16 17:07:55,473 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-16 17:07:55,473 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-16 17:07:55,473 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-16 17:07:55,473 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-16 17:07:55,473 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-16 17:07:55,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-16 17:07:55,474 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-16 17:07:55,474 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-16 17:07:55,474 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-16 17:07:55,474 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-16 17:07:55,475 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-16 17:07:55,475 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-16 17:07:55,532 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-16 17:07:55,546 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-16 17:07:55,549 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-16 17:07:55,551 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-16 17:07:55,551 INFO L275 PluginConnector]: CDTParser initialized [2019-09-16 17:07:55,552 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product32.cil.c [2019-09-16 17:07:55,611 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87c9b0b4a/b18f553c4587443bbc124ef65f4e3eb3/FLAGda31945d8 [2019-09-16 17:07:56,195 INFO L306 CDTParser]: Found 1 translation units. [2019-09-16 17:07:56,196 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec1_product32.cil.c [2019-09-16 17:07:56,215 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87c9b0b4a/b18f553c4587443bbc124ef65f4e3eb3/FLAGda31945d8 [2019-09-16 17:07:56,454 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/87c9b0b4a/b18f553c4587443bbc124ef65f4e3eb3 [2019-09-16 17:07:56,464 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-16 17:07:56,465 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-16 17:07:56,466 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:56,466 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-16 17:07:56,470 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-16 17:07:56,471 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:56" (1/1) ... [2019-09-16 17:07:56,473 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@63939978 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:56, skipping insertion in model container [2019-09-16 17:07:56,474 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 05:07:56" (1/1) ... [2019-09-16 17:07:56,482 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-16 17:07:56,546 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-16 17:07:56,951 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:56,976 INFO L188 MainTranslator]: Completed pre-run [2019-09-16 17:07:57,083 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-16 17:07:57,130 INFO L192 MainTranslator]: Completed translation [2019-09-16 17:07:57,131 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57 WrapperNode [2019-09-16 17:07:57,131 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-16 17:07:57,132 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-16 17:07:57,132 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-16 17:07:57,132 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-16 17:07:57,146 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,147 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,170 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,199 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,210 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,216 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (1/1) ... [2019-09-16 17:07:57,225 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-16 17:07:57,225 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-16 17:07:57,225 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-16 17:07:57,225 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-16 17:07:57,226 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (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 [2019-09-16 17:07:57,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-16 17:07:57,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-16 17:07:57,290 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:57,290 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:57,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:57,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:57,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-16 17:07:57,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-16 17:07:57,291 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-16 17:07:57,291 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-16 17:07:57,292 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-16 17:07:57,292 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-16 17:07:57,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-16 17:07:57,292 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-16 17:07:57,292 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-16 17:07:57,292 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-16 17:07:57,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-16 17:07:57,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-16 17:07:57,293 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-16 17:07:57,293 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-16 17:07:57,293 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:57,293 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-16 17:07:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-16 17:07:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-16 17:07:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:07:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-16 17:07:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:07:57,294 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-16 17:07:57,295 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-16 17:07:57,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-16 17:07:57,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-16 17:07:57,295 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-16 17:07:57,295 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-16 17:07:57,295 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-16 17:07:57,295 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-16 17:07:57,296 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-16 17:07:57,296 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-16 17:07:57,296 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-16 17:07:57,296 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-16 17:07:57,296 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-16 17:07:57,296 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-16 17:07:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-16 17:07:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-16 17:07:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-16 17:07:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-16 17:07:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-16 17:07:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-16 17:07:57,297 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-16 17:07:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-16 17:07:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-16 17:07:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-16 17:07:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-16 17:07:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-16 17:07:57,298 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-16 17:07:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-16 17:07:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-16 17:07:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-16 17:07:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-16 17:07:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-16 17:07:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-16 17:07:57,299 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-16 17:07:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-16 17:07:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-16 17:07:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-16 17:07:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-16 17:07:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-16 17:07:57,300 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-16 17:07:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-16 17:07:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-16 17:07:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-16 17:07:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-16 17:07:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-16 17:07:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-16 17:07:57,301 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-16 17:07:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2019-09-16 17:07:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-16 17:07:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-16 17:07:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-16 17:07:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-16 17:07:57,302 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-16 17:07:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-16 17:07:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-16 17:07:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-16 17:07:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-16 17:07:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-16 17:07:57,303 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-16 17:07:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-16 17:07:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-16 17:07:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-16 17:07:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-16 17:07:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-16 17:07:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-16 17:07:57,304 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-16 17:07:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-16 17:07:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-16 17:07:57,305 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-16 17:07:58,415 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-16 17:07:58,416 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-16 17:07:58,418 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:58 BoogieIcfgContainer [2019-09-16 17:07:58,418 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-16 17:07:58,419 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-16 17:07:58,419 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-16 17:07:58,423 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-16 17:07:58,424 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 05:07:56" (1/3) ... [2019-09-16 17:07:58,425 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519d1700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:58, skipping insertion in model container [2019-09-16 17:07:58,425 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 05:07:57" (2/3) ... [2019-09-16 17:07:58,426 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@519d1700 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 05:07:58, skipping insertion in model container [2019-09-16 17:07:58,426 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 05:07:58" (3/3) ... [2019-09-16 17:07:58,430 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product32.cil.c [2019-09-16 17:07:58,440 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-16 17:07:58,452 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-16 17:07:58,469 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-16 17:07:58,493 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-16 17:07:58,493 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-16 17:07:58,493 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-16 17:07:58,493 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-16 17:07:58,494 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-16 17:07:58,494 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-16 17:07:58,494 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-16 17:07:58,494 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-16 17:07:58,513 INFO L276 IsEmpty]: Start isEmpty. Operand 180 states. [2019-09-16 17:07:58,527 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 47 [2019-09-16 17:07:58,527 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:58,528 INFO L407 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] [2019-09-16 17:07:58,531 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:58,537 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:58,537 INFO L82 PathProgramCache]: Analyzing trace with hash 878433908, now seen corresponding path program 1 times [2019-09-16 17:07:58,540 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:58,601 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:58,601 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:58,602 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:58,602 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:58,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:58,916 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:58,919 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:58,919 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-16 17:07:58,921 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:58,930 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-16 17:07:58,947 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-16 17:07:58,951 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-16 17:07:58,954 INFO L87 Difference]: Start difference. First operand 180 states. Second operand 2 states. [2019-09-16 17:07:58,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:58,990 INFO L93 Difference]: Finished difference Result 140 states and 165 transitions. [2019-09-16 17:07:58,991 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-16 17:07:58,992 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 46 [2019-09-16 17:07:58,993 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:59,005 INFO L225 Difference]: With dead ends: 140 [2019-09-16 17:07:59,006 INFO L226 Difference]: Without dead ends: 129 [2019-09-16 17:07:59,008 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 [2019-09-16 17:07:59,024 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 129 states. [2019-09-16 17:07:59,054 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 129 to 129. [2019-09-16 17:07:59,056 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 129 states. [2019-09-16 17:07:59,060 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 129 states to 129 states and 153 transitions. [2019-09-16 17:07:59,061 INFO L78 Accepts]: Start accepts. Automaton has 129 states and 153 transitions. Word has length 46 [2019-09-16 17:07:59,061 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:59,061 INFO L475 AbstractCegarLoop]: Abstraction has 129 states and 153 transitions. [2019-09-16 17:07:59,061 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-16 17:07:59,062 INFO L276 IsEmpty]: Start isEmpty. Operand 129 states and 153 transitions. [2019-09-16 17:07:59,065 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 48 [2019-09-16 17:07:59,065 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:59,065 INFO L407 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] [2019-09-16 17:07:59,066 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:59,066 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:59,066 INFO L82 PathProgramCache]: Analyzing trace with hash 1259616678, now seen corresponding path program 1 times [2019-09-16 17:07:59,066 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:59,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,069 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:59,069 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,070 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:59,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:59,192 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:59,192 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:59,193 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-16 17:07:59,193 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:59,196 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-16 17:07:59,196 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-16 17:07:59,196 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-16 17:07:59,197 INFO L87 Difference]: Start difference. First operand 129 states and 153 transitions. Second operand 3 states. [2019-09-16 17:07:59,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:59,224 INFO L93 Difference]: Finished difference Result 120 states and 141 transitions. [2019-09-16 17:07:59,227 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-16 17:07:59,227 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 47 [2019-09-16 17:07:59,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:59,230 INFO L225 Difference]: With dead ends: 120 [2019-09-16 17:07:59,230 INFO L226 Difference]: Without dead ends: 120 [2019-09-16 17:07:59,234 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 [2019-09-16 17:07:59,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 120 states. [2019-09-16 17:07:59,257 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 120 to 120. [2019-09-16 17:07:59,257 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 120 states. [2019-09-16 17:07:59,260 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 120 states to 120 states and 141 transitions. [2019-09-16 17:07:59,260 INFO L78 Accepts]: Start accepts. Automaton has 120 states and 141 transitions. Word has length 47 [2019-09-16 17:07:59,260 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:59,261 INFO L475 AbstractCegarLoop]: Abstraction has 120 states and 141 transitions. [2019-09-16 17:07:59,261 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-16 17:07:59,261 INFO L276 IsEmpty]: Start isEmpty. Operand 120 states and 141 transitions. [2019-09-16 17:07:59,263 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-16 17:07:59,263 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:59,264 INFO L407 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] [2019-09-16 17:07:59,264 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:59,264 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:59,264 INFO L82 PathProgramCache]: Analyzing trace with hash 357693267, now seen corresponding path program 1 times [2019-09-16 17:07:59,265 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:59,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,267 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:59,267 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,267 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:07:59,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:07:59,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:07:59,417 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:07:59,418 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:07:59,418 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:07:59,418 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:07:59,419 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:07:59,419 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:07:59,419 INFO L87 Difference]: Start difference. First operand 120 states and 141 transitions. Second operand 7 states. [2019-09-16 17:07:59,912 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:07:59,913 INFO L93 Difference]: Finished difference Result 266 states and 322 transitions. [2019-09-16 17:07:59,913 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-16 17:07:59,913 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 52 [2019-09-16 17:07:59,914 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:07:59,917 INFO L225 Difference]: With dead ends: 266 [2019-09-16 17:07:59,918 INFO L226 Difference]: Without dead ends: 266 [2019-09-16 17:07:59,918 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 [2019-09-16 17:07:59,919 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 266 states. [2019-09-16 17:07:59,964 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 266 to 254. [2019-09-16 17:07:59,964 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 254 states. [2019-09-16 17:07:59,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 254 states to 254 states and 310 transitions. [2019-09-16 17:07:59,968 INFO L78 Accepts]: Start accepts. Automaton has 254 states and 310 transitions. Word has length 52 [2019-09-16 17:07:59,969 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:07:59,969 INFO L475 AbstractCegarLoop]: Abstraction has 254 states and 310 transitions. [2019-09-16 17:07:59,969 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:07:59,969 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states and 310 transitions. [2019-09-16 17:07:59,972 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-16 17:07:59,973 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:07:59,973 INFO L407 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] [2019-09-16 17:07:59,973 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:07:59,973 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:07:59,974 INFO L82 PathProgramCache]: Analyzing trace with hash -1656866468, now seen corresponding path program 1 times [2019-09-16 17:07:59,974 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:07:59,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,977 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:07:59,977 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:07:59,977 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:00,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:00,158 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:00,159 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:00,159 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-16 17:08:00,159 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:00,160 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-16 17:08:00,160 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-16 17:08:00,160 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-16 17:08:00,160 INFO L87 Difference]: Start difference. First operand 254 states and 310 transitions. Second operand 6 states. [2019-09-16 17:08:00,393 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:00,393 INFO L93 Difference]: Finished difference Result 469 states and 576 transitions. [2019-09-16 17:08:00,394 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:00,394 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 57 [2019-09-16 17:08:00,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:00,399 INFO L225 Difference]: With dead ends: 469 [2019-09-16 17:08:00,399 INFO L226 Difference]: Without dead ends: 469 [2019-09-16 17:08:00,399 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-16 17:08:00,401 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2019-09-16 17:08:00,431 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 463. [2019-09-16 17:08:00,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 463 states. [2019-09-16 17:08:00,435 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 463 states to 463 states and 570 transitions. [2019-09-16 17:08:00,435 INFO L78 Accepts]: Start accepts. Automaton has 463 states and 570 transitions. Word has length 57 [2019-09-16 17:08:00,436 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:00,436 INFO L475 AbstractCegarLoop]: Abstraction has 463 states and 570 transitions. [2019-09-16 17:08:00,436 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-16 17:08:00,436 INFO L276 IsEmpty]: Start isEmpty. Operand 463 states and 570 transitions. [2019-09-16 17:08:00,441 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 62 [2019-09-16 17:08:00,441 INFO L399 BasicCegarLoop]: Found error trace [2019-09-16 17:08:00,441 INFO L407 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] [2019-09-16 17:08:00,442 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-16 17:08:00,442 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-16 17:08:00,442 INFO L82 PathProgramCache]: Analyzing trace with hash -403422112, now seen corresponding path program 1 times [2019-09-16 17:08:00,442 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-16 17:08:00,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,445 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-16 17:08:00,445 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-16 17:08:00,445 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-16 17:08:00,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-16 17:08:00,599 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-16 17:08:00,600 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-16 17:08:00,600 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-16 17:08:00,600 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-16 17:08:00,601 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-16 17:08:00,601 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-16 17:08:00,601 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-16 17:08:00,601 INFO L87 Difference]: Start difference. First operand 463 states and 570 transitions. Second operand 7 states. [2019-09-16 17:08:00,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-16 17:08:00,942 INFO L93 Difference]: Finished difference Result 318 states and 365 transitions. [2019-09-16 17:08:00,942 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-16 17:08:00,943 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 61 [2019-09-16 17:08:00,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-16 17:08:00,943 INFO L225 Difference]: With dead ends: 318 [2019-09-16 17:08:00,943 INFO L226 Difference]: Without dead ends: 0 [2019-09-16 17:08:00,944 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 [2019-09-16 17:08:00,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-16 17:08:00,945 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-16 17:08:00,945 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-16 17:08:00,945 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-16 17:08:00,945 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 61 [2019-09-16 17:08:00,945 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-16 17:08:00,945 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-16 17:08:00,945 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-16 17:08:00,946 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-16 17:08:00,946 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-16 17:08:00,951 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 16.09 05:08:00 BoogieIcfgContainer [2019-09-16 17:08:00,952 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-16 17:08:00,955 INFO L168 Benchmark]: Toolchain (without parser) took 4488.57 ms. Allocated memory was 131.1 MB in the beginning and 263.7 MB in the end (delta: 132.6 MB). Free memory was 85.9 MB in the beginning and 123.9 MB in the end (delta: -38.0 MB). Peak memory consumption was 94.7 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:00,957 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-16 17:08:00,958 INFO L168 Benchmark]: CACSL2BoogieTranslator took 665.75 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 85.7 MB in the beginning and 163.5 MB in the end (delta: -77.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:00,960 INFO L168 Benchmark]: Boogie Preprocessor took 93.01 ms. Allocated memory is still 199.2 MB. Free memory was 163.5 MB in the beginning and 159.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:00,961 INFO L168 Benchmark]: RCFGBuilder took 1192.76 ms. Allocated memory was 199.2 MB in the beginning and 220.2 MB in the end (delta: 21.0 MB). Free memory was 159.6 MB in the beginning and 189.5 MB in the end (delta: -29.9 MB). Peak memory consumption was 93.0 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:00,963 INFO L168 Benchmark]: TraceAbstraction took 2532.70 ms. Allocated memory was 220.2 MB in the beginning and 263.7 MB in the end (delta: 43.5 MB). Free memory was 189.5 MB in the beginning and 123.9 MB in the end (delta: 65.6 MB). Peak memory consumption was 109.1 MB. Max. memory is 7.1 GB. [2019-09-16 17:08:00,974 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 131.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 665.75 ms. Allocated memory was 131.1 MB in the beginning and 199.2 MB in the end (delta: 68.2 MB). Free memory was 85.7 MB in the beginning and 163.5 MB in the end (delta: -77.8 MB). Peak memory consumption was 26.6 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 93.01 ms. Allocated memory is still 199.2 MB. Free memory was 163.5 MB in the beginning and 159.6 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1192.76 ms. Allocated memory was 199.2 MB in the beginning and 220.2 MB in the end (delta: 21.0 MB). Free memory was 159.6 MB in the beginning and 189.5 MB in the end (delta: -29.9 MB). Peak memory consumption was 93.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2532.70 ms. Allocated memory was 220.2 MB in the beginning and 263.7 MB in the end (delta: 43.5 MB). Free memory was 189.5 MB in the beginning and 123.9 MB in the end (delta: 65.6 MB). Peak memory consumption was 109.1 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 866]: 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 41 procedures, 241 locations, 1 error locations. SAFE Result, 2.4s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.1s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 719 SDtfs, 427 SDslu, 1367 SDs, 0 SdLazy, 474 SolverSat, 76 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=463occurred in iteration=4, 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, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 263 NumberOfCodeBlocks, 263 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 258 ConstructedInterpolants, 0 QuantifiedInterpolants, 25848 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...