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_spec3_product33.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:57:53,436 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:57:53,438 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:57:53,460 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:57:53,460 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:57:53,462 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:57:53,464 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:57:53,467 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:57:53,471 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:57:53,472 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:57:53,476 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:57:53,477 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:57:53,478 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:57:53,479 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:57:53,480 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:57:53,481 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:57:53,482 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:57:53,485 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:57:53,488 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:57:53,492 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:57:53,498 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:57:53,499 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:57:53,502 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:57:53,505 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:57:53,508 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:57:53,509 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:57:53,509 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:57:53,511 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:57:53,511 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:57:53,512 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:57:53,513 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:57:53,513 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:57:53,514 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:57:53,515 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:57:53,516 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:57:53,516 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:57:53,517 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:57:53,517 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:57:53,517 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:57:53,518 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:57:53,519 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:57:53,519 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 [2019-10-03 02:57:53,535 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:57:53,535 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:57:53,536 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:57:53,536 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:57:53,537 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:57:53,537 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:57:53,537 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:57:53,537 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:57:53,538 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:57:53,538 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:57:53,539 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:57:53,539 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:57:53,539 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:57:53,539 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:57:53,539 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:57:53,540 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:57:53,540 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:57:53,540 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:57:53,540 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:57:53,540 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:57:53,541 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:57:53,541 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:57:53,541 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:57:53,541 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:57:53,541 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:57:53,542 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:57:53,542 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:57:53,542 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:57:53,542 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:57:53,542 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:57:53,576 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:57:53,591 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:57:53,596 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:57:53,598 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:57:53,598 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:57:53,599 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c [2019-10-03 02:57:53,663 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36e3f5f62/54c88a11d2e04db8a7d94bce1cfbb5f5/FLAG6b5f00964 [2019-10-03 02:57:54,151 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:57:54,151 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product33.cil.c [2019-10-03 02:57:54,166 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36e3f5f62/54c88a11d2e04db8a7d94bce1cfbb5f5/FLAG6b5f00964 [2019-10-03 02:57:54,519 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36e3f5f62/54c88a11d2e04db8a7d94bce1cfbb5f5 [2019-10-03 02:57:54,529 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:57:54,530 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:57:54,531 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:54,531 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:57:54,535 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:57:54,536 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:54" (1/1) ... [2019-10-03 02:57:54,539 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@616c8eb7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:54, skipping insertion in model container [2019-10-03 02:57:54,540 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:57:54" (1/1) ... [2019-10-03 02:57:54,547 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:57:54,614 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:57:54,976 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:54,995 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:57:55,094 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:57:55,137 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:57:55,137 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:55 WrapperNode [2019-10-03 02:57:55,138 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:57:55,138 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:57:55,139 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:57:55,139 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:57:55,150 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:55" (1/1) ... [2019-10-03 02:57:55,150 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:55" (1/1) ... [2019-10-03 02:57:55,169 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:55" (1/1) ... [2019-10-03 02:57:55,170 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:55" (1/1) ... [2019-10-03 02:57:55,203 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:55" (1/1) ... [2019-10-03 02:57:55,214 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:55" (1/1) ... [2019-10-03 02:57:55,219 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:55" (1/1) ... [2019-10-03 02:57:55,226 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:57:55,226 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:57:55,227 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:57:55,227 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:57:55,228 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:55" (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 [2019-10-03 02:57:55,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:57:55,299 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:57:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:57:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:57:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:57:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:57:55,300 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:57:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:57:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:57:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:57:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:57:55,301 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:57:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:57:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:57:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:55,302 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:57:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:57:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:57:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:57:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:57:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:57:55,303 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:57:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:57:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:57:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:57:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:57:55,304 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:57:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:57:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:57:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:57:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:57:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:57:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:57:55,305 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:57:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:57:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:57:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:57:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:57:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:57:55,306 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:57:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:57:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:57:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:57:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:57:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:57:55,307 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:57:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:57:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:57:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:57:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:57:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:57:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:57:55,308 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:57:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:57:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:57:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:57:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:57:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:57:55,309 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:57:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:57:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:57:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:57:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:57:55,310 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:57:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:57:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:57:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:57:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:57:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:57:55,311 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:57:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:57:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:57:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:57:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:57:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:57:55,312 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:57:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-10-03 02:57:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:57:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:57:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:57:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:57:55,313 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:57:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:57:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:57:55,314 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:57:56,581 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:57:56,582 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:57:56,583 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:56 BoogieIcfgContainer [2019-10-03 02:57:56,583 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:57:56,585 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:57:56,585 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:57:56,588 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:57:56,588 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:57:54" (1/3) ... [2019-10-03 02:57:56,589 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e81d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:56, skipping insertion in model container [2019-10-03 02:57:56,589 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:57:55" (2/3) ... [2019-10-03 02:57:56,590 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39e81d6d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:57:56, skipping insertion in model container [2019-10-03 02:57:56,590 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:57:56" (3/3) ... [2019-10-03 02:57:56,592 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product33.cil.c [2019-10-03 02:57:56,602 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:57:56,612 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:57:56,629 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:57:56,656 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:57:56,656 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:57:56,656 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:57:56,656 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:57:56,657 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:57:56,657 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:57:56,657 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:57:56,657 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:57:56,678 INFO L276 IsEmpty]: Start isEmpty. Operand 157 states. [2019-10-03 02:57:56,701 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-10-03 02:57:56,701 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:56,702 INFO L411 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] [2019-10-03 02:57:56,706 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:56,712 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:56,713 INFO L82 PathProgramCache]: Analyzing trace with hash 1697845513, now seen corresponding path program 1 times [2019-10-03 02:57:56,716 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:56,771 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:56,772 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:56,772 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:56,772 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:56,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:57,068 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:57,070 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:57,070 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:57:57,071 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:57,077 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:57:57,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:57:57,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:57:57,095 INFO L87 Difference]: Start difference. First operand 157 states. Second operand 2 states. [2019-10-03 02:57:57,125 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:57,126 INFO L93 Difference]: Finished difference Result 122 states and 142 transitions. [2019-10-03 02:57:57,126 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:57:57,127 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-10-03 02:57:57,128 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:57,140 INFO L225 Difference]: With dead ends: 122 [2019-10-03 02:57:57,140 INFO L226 Difference]: Without dead ends: 111 [2019-10-03 02:57:57,142 INFO L640 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 [2019-10-03 02:57:57,161 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 111 states. [2019-10-03 02:57:57,189 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 111 to 111. [2019-10-03 02:57:57,191 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 111 states. [2019-10-03 02:57:57,194 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 111 states to 111 states and 130 transitions. [2019-10-03 02:57:57,195 INFO L78 Accepts]: Start accepts. Automaton has 111 states and 130 transitions. Word has length 52 [2019-10-03 02:57:57,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:57,196 INFO L475 AbstractCegarLoop]: Abstraction has 111 states and 130 transitions. [2019-10-03 02:57:57,196 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:57:57,196 INFO L276 IsEmpty]: Start isEmpty. Operand 111 states and 130 transitions. [2019-10-03 02:57:57,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-10-03 02:57:57,200 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:57,200 INFO L411 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] [2019-10-03 02:57:57,200 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:57,201 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:57,201 INFO L82 PathProgramCache]: Analyzing trace with hash 1118186443, now seen corresponding path program 1 times [2019-10-03 02:57:57,201 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:57,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:57,204 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:57,204 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:57,204 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:57,283 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:57,375 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:57,375 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:57,375 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:57:57,375 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:57,378 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:57:57,379 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:57:57,379 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:57,380 INFO L87 Difference]: Start difference. First operand 111 states and 130 transitions. Second operand 3 states. [2019-10-03 02:57:57,408 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:57,409 INFO L93 Difference]: Finished difference Result 102 states and 118 transitions. [2019-10-03 02:57:57,411 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:57:57,411 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-10-03 02:57:57,411 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:57,414 INFO L225 Difference]: With dead ends: 102 [2019-10-03 02:57:57,416 INFO L226 Difference]: Without dead ends: 102 [2019-10-03 02:57:57,417 INFO L640 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 [2019-10-03 02:57:57,418 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-10-03 02:57:57,432 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-10-03 02:57:57,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-10-03 02:57:57,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 118 transitions. [2019-10-03 02:57:57,434 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 118 transitions. Word has length 53 [2019-10-03 02:57:57,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:57,434 INFO L475 AbstractCegarLoop]: Abstraction has 102 states and 118 transitions. [2019-10-03 02:57:57,434 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:57:57,435 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 118 transitions. [2019-10-03 02:57:57,436 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-10-03 02:57:57,437 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:57,437 INFO L411 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] [2019-10-03 02:57:57,437 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:57,437 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:57,438 INFO L82 PathProgramCache]: Analyzing trace with hash 1001368997, now seen corresponding path program 1 times [2019-10-03 02:57:57,438 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:57,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:57,441 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:57,441 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:57,441 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:57,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:57,560 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:57,561 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:57,561 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:57:57,561 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:57,562 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:57:57,562 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:57:57,562 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:57:57,562 INFO L87 Difference]: Start difference. First operand 102 states and 118 transitions. Second operand 3 states. [2019-10-03 02:57:57,577 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:57,577 INFO L93 Difference]: Finished difference Result 102 states and 117 transitions. [2019-10-03 02:57:57,578 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:57:57,578 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 57 [2019-10-03 02:57:57,578 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:57,580 INFO L225 Difference]: With dead ends: 102 [2019-10-03 02:57:57,580 INFO L226 Difference]: Without dead ends: 102 [2019-10-03 02:57:57,580 INFO L640 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 [2019-10-03 02:57:57,581 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 102 states. [2019-10-03 02:57:57,587 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 102 to 102. [2019-10-03 02:57:57,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 102 states. [2019-10-03 02:57:57,589 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 117 transitions. [2019-10-03 02:57:57,589 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 117 transitions. Word has length 57 [2019-10-03 02:57:57,589 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:57,590 INFO L475 AbstractCegarLoop]: Abstraction has 102 states and 117 transitions. [2019-10-03 02:57:57,590 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:57:57,590 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 117 transitions. [2019-10-03 02:57:57,592 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 66 [2019-10-03 02:57:57,592 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:57,592 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:57,593 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:57,593 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:57,593 INFO L82 PathProgramCache]: Analyzing trace with hash 1834066652, now seen corresponding path program 1 times [2019-10-03 02:57:57,593 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:57,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:57,596 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:57,596 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:57,596 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:57,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:57,757 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:57,757 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:57,758 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:57:57,758 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:57,758 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:57:57,759 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:57:57,759 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:57:57,759 INFO L87 Difference]: Start difference. First operand 102 states and 117 transitions. Second operand 5 states. [2019-10-03 02:57:58,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:58,574 INFO L93 Difference]: Finished difference Result 197 states and 230 transitions. [2019-10-03 02:57:58,575 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:57:58,575 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 65 [2019-10-03 02:57:58,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:58,580 INFO L225 Difference]: With dead ends: 197 [2019-10-03 02:57:58,584 INFO L226 Difference]: Without dead ends: 197 [2019-10-03 02:57:58,584 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:57:58,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 197 states. [2019-10-03 02:57:58,620 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 197 to 179. [2019-10-03 02:57:58,620 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 179 states. [2019-10-03 02:57:58,621 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 179 states to 179 states and 206 transitions. [2019-10-03 02:57:58,622 INFO L78 Accepts]: Start accepts. Automaton has 179 states and 206 transitions. Word has length 65 [2019-10-03 02:57:58,625 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:58,625 INFO L475 AbstractCegarLoop]: Abstraction has 179 states and 206 transitions. [2019-10-03 02:57:58,626 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:57:58,626 INFO L276 IsEmpty]: Start isEmpty. Operand 179 states and 206 transitions. [2019-10-03 02:57:58,631 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 80 [2019-10-03 02:57:58,631 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:58,631 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:58,631 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:58,632 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:58,632 INFO L82 PathProgramCache]: Analyzing trace with hash 476831218, now seen corresponding path program 1 times [2019-10-03 02:57:58,632 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:58,638 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:58,639 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:58,639 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:58,639 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:58,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:58,804 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:58,804 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:58,805 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:58,805 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:58,806 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:58,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:58,807 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:58,807 INFO L87 Difference]: Start difference. First operand 179 states and 206 transitions. Second operand 6 states. [2019-10-03 02:57:59,004 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:59,004 INFO L93 Difference]: Finished difference Result 284 states and 332 transitions. [2019-10-03 02:57:59,005 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:57:59,005 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 79 [2019-10-03 02:57:59,006 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:59,009 INFO L225 Difference]: With dead ends: 284 [2019-10-03 02:57:59,009 INFO L226 Difference]: Without dead ends: 284 [2019-10-03 02:57:59,010 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:57:59,010 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 284 states. [2019-10-03 02:57:59,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 284 to 280. [2019-10-03 02:57:59,029 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 280 states. [2019-10-03 02:57:59,031 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 280 states to 280 states and 328 transitions. [2019-10-03 02:57:59,031 INFO L78 Accepts]: Start accepts. Automaton has 280 states and 328 transitions. Word has length 79 [2019-10-03 02:57:59,033 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:59,034 INFO L475 AbstractCegarLoop]: Abstraction has 280 states and 328 transitions. [2019-10-03 02:57:59,034 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:59,034 INFO L276 IsEmpty]: Start isEmpty. Operand 280 states and 328 transitions. [2019-10-03 02:57:59,040 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-03 02:57:59,040 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:59,040 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:59,040 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:59,040 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:59,041 INFO L82 PathProgramCache]: Analyzing trace with hash 786989304, now seen corresponding path program 1 times [2019-10-03 02:57:59,041 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:59,047 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:59,048 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:59,048 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:59,048 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:59,083 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:59,182 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:59,182 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:59,183 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:57:59,183 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:59,183 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:57:59,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:57:59,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:57:59,184 INFO L87 Difference]: Start difference. First operand 280 states and 328 transitions. Second operand 6 states. [2019-10-03 02:57:59,429 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:59,429 INFO L93 Difference]: Finished difference Result 430 states and 514 transitions. [2019-10-03 02:57:59,430 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:57:59,430 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 83 [2019-10-03 02:57:59,431 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:59,439 INFO L225 Difference]: With dead ends: 430 [2019-10-03 02:57:59,440 INFO L226 Difference]: Without dead ends: 430 [2019-10-03 02:57:59,442 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 2 SyntacticMatches, 1 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:57:59,444 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 430 states. [2019-10-03 02:57:59,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 430 to 412. [2019-10-03 02:57:59,489 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 412 states. [2019-10-03 02:57:59,492 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412 states to 412 states and 493 transitions. [2019-10-03 02:57:59,493 INFO L78 Accepts]: Start accepts. Automaton has 412 states and 493 transitions. Word has length 83 [2019-10-03 02:57:59,493 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:59,493 INFO L475 AbstractCegarLoop]: Abstraction has 412 states and 493 transitions. [2019-10-03 02:57:59,493 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:57:59,493 INFO L276 IsEmpty]: Start isEmpty. Operand 412 states and 493 transitions. [2019-10-03 02:57:59,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-03 02:57:59,501 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:59,501 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:59,501 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:59,502 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:59,502 INFO L82 PathProgramCache]: Analyzing trace with hash 1116755065, now seen corresponding path program 1 times [2019-10-03 02:57:59,502 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:59,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:59,504 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:59,504 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:59,505 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:59,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:59,575 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:59,575 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:59,576 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-10-03 02:57:59,576 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:59,576 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-10-03 02:57:59,577 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-10-03 02:57:59,577 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:57:59,577 INFO L87 Difference]: Start difference. First operand 412 states and 493 transitions. Second operand 5 states. [2019-10-03 02:57:59,627 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:59,627 INFO L93 Difference]: Finished difference Result 422 states and 503 transitions. [2019-10-03 02:57:59,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-10-03 02:57:59,630 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 83 [2019-10-03 02:57:59,631 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:59,633 INFO L225 Difference]: With dead ends: 422 [2019-10-03 02:57:59,634 INFO L226 Difference]: Without dead ends: 422 [2019-10-03 02:57:59,634 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-10-03 02:57:59,635 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 422 states. [2019-10-03 02:57:59,665 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 422 to 416. [2019-10-03 02:57:59,665 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2019-10-03 02:57:59,670 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 496 transitions. [2019-10-03 02:57:59,670 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 496 transitions. Word has length 83 [2019-10-03 02:57:59,670 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:59,671 INFO L475 AbstractCegarLoop]: Abstraction has 416 states and 496 transitions. [2019-10-03 02:57:59,671 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-10-03 02:57:59,671 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 496 transitions. [2019-10-03 02:57:59,674 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 84 [2019-10-03 02:57:59,674 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:59,674 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:59,675 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:59,675 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:59,675 INFO L82 PathProgramCache]: Analyzing trace with hash 1044368507, now seen corresponding path program 1 times [2019-10-03 02:57:59,675 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:59,678 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:59,678 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:59,679 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:59,679 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:59,703 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:59,789 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:59,790 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:59,790 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 02:57:59,790 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:59,791 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 02:57:59,792 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 02:57:59,792 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:57:59,793 INFO L87 Difference]: Start difference. First operand 416 states and 496 transitions. Second operand 9 states. [2019-10-03 02:57:59,842 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:57:59,842 INFO L93 Difference]: Finished difference Result 397 states and 473 transitions. [2019-10-03 02:57:59,843 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-03 02:57:59,843 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 83 [2019-10-03 02:57:59,844 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:57:59,846 INFO L225 Difference]: With dead ends: 397 [2019-10-03 02:57:59,846 INFO L226 Difference]: Without dead ends: 397 [2019-10-03 02:57:59,849 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:57:59,850 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 397 states. [2019-10-03 02:57:59,865 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 397 to 391. [2019-10-03 02:57:59,865 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 391 states. [2019-10-03 02:57:59,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 391 states to 391 states and 464 transitions. [2019-10-03 02:57:59,868 INFO L78 Accepts]: Start accepts. Automaton has 391 states and 464 transitions. Word has length 83 [2019-10-03 02:57:59,868 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:57:59,868 INFO L475 AbstractCegarLoop]: Abstraction has 391 states and 464 transitions. [2019-10-03 02:57:59,868 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 02:57:59,869 INFO L276 IsEmpty]: Start isEmpty. Operand 391 states and 464 transitions. [2019-10-03 02:57:59,871 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2019-10-03 02:57:59,872 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:57:59,872 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:57:59,873 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:57:59,873 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:57:59,873 INFO L82 PathProgramCache]: Analyzing trace with hash 1113116411, now seen corresponding path program 1 times [2019-10-03 02:57:59,874 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:57:59,876 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:59,876 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:57:59,877 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:57:59,877 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:57:59,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:57:59,981 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-10-03 02:57:59,982 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:57:59,982 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-10-03 02:57:59,982 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:57:59,983 INFO L454 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-10-03 02:57:59,983 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-10-03 02:57:59,983 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=18, Invalid=72, Unknown=0, NotChecked=0, Total=90 [2019-10-03 02:57:59,983 INFO L87 Difference]: Start difference. First operand 391 states and 464 transitions. Second operand 10 states. [2019-10-03 02:58:00,349 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:58:00,349 INFO L93 Difference]: Finished difference Result 392 states and 454 transitions. [2019-10-03 02:58:00,350 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-10-03 02:58:00,350 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 84 [2019-10-03 02:58:00,350 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:58:00,350 INFO L225 Difference]: With dead ends: 392 [2019-10-03 02:58:00,351 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:58:00,352 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 14 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:58:00,352 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:58:00,352 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:58:00,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:58:00,352 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:58:00,352 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2019-10-03 02:58:00,353 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:58:00,353 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:58:00,353 INFO L476 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-10-03 02:58:00,353 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:58:00,353 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:58:00,360 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:58:00 BoogieIcfgContainer [2019-10-03 02:58:00,360 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:58:00,365 INFO L168 Benchmark]: Toolchain (without parser) took 5832.02 ms. Allocated memory was 132.6 MB in the beginning and 264.8 MB in the end (delta: 132.1 MB). Free memory was 87.7 MB in the beginning and 135.1 MB in the end (delta: -47.4 MB). Peak memory consumption was 84.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:00,365 INFO L168 Benchmark]: CDTParser took 0.21 ms. Allocated memory is still 132.6 MB. Free memory is still 106.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-10-03 02:58:00,368 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.95 ms. Allocated memory was 132.6 MB in the beginning and 198.7 MB in the end (delta: 66.1 MB). Free memory was 87.2 MB in the beginning and 162.1 MB in the end (delta: -74.8 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:00,369 INFO L168 Benchmark]: Boogie Preprocessor took 87.64 ms. Allocated memory is still 198.7 MB. Free memory was 162.1 MB in the beginning and 157.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:00,371 INFO L168 Benchmark]: RCFGBuilder took 1357.17 ms. Allocated memory was 198.7 MB in the beginning and 222.8 MB in the end (delta: 24.1 MB). Free memory was 157.5 MB in the beginning and 189.9 MB in the end (delta: -32.4 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:00,379 INFO L168 Benchmark]: TraceAbstraction took 3775.65 ms. Allocated memory was 222.8 MB in the beginning and 264.8 MB in the end (delta: 41.9 MB). Free memory was 189.9 MB in the beginning and 135.1 MB in the end (delta: 54.8 MB). Peak memory consumption was 96.8 MB. Max. memory is 7.1 GB. [2019-10-03 02:58:00,386 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 132.6 MB. Free memory is still 106.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 606.95 ms. Allocated memory was 132.6 MB in the beginning and 198.7 MB in the end (delta: 66.1 MB). Free memory was 87.2 MB in the beginning and 162.1 MB in the end (delta: -74.8 MB). Peak memory consumption was 27.1 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 87.64 ms. Allocated memory is still 198.7 MB. Free memory was 162.1 MB in the beginning and 157.5 MB in the end (delta: 4.6 MB). Peak memory consumption was 4.6 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1357.17 ms. Allocated memory was 198.7 MB in the beginning and 222.8 MB in the end (delta: 24.1 MB). Free memory was 157.5 MB in the beginning and 189.9 MB in the end (delta: -32.4 MB). Peak memory consumption was 88.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3775.65 ms. Allocated memory was 222.8 MB in the beginning and 264.8 MB in the end (delta: 41.9 MB). Free memory was 189.9 MB in the beginning and 135.1 MB in the end (delta: 54.8 MB). Peak memory consumption was 96.8 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 613]: 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 37 procedures, 218 locations, 1 error locations. SAFE Result, 3.7s OverallTime, 9 OverallIterations, 1 TraceHistogramMax, 1.8s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1162 SDtfs, 514 SDslu, 3328 SDs, 0 SdLazy, 514 SolverSat, 114 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 75 GetRequests, 31 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=416occurred in iteration=7, 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: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 52 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 639 NumberOfCodeBlocks, 639 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 630 ConstructedInterpolants, 0 QuantifiedInterpolants, 70505 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 9 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...