java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec5_product51.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-673a906-m [2019-10-03 02:59:08,655 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-10-03 02:59:08,657 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-10-03 02:59:08,669 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-10-03 02:59:08,669 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-10-03 02:59:08,670 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-10-03 02:59:08,671 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-10-03 02:59:08,673 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-10-03 02:59:08,675 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-10-03 02:59:08,676 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-10-03 02:59:08,677 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-10-03 02:59:08,678 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-10-03 02:59:08,678 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-10-03 02:59:08,679 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-10-03 02:59:08,680 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-10-03 02:59:08,681 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-10-03 02:59:08,682 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-10-03 02:59:08,683 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-10-03 02:59:08,685 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-10-03 02:59:08,687 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-10-03 02:59:08,688 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-10-03 02:59:08,690 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-10-03 02:59:08,691 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-10-03 02:59:08,692 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-10-03 02:59:08,694 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-10-03 02:59:08,694 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-10-03 02:59:08,694 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-10-03 02:59:08,695 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-10-03 02:59:08,696 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-10-03 02:59:08,697 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-10-03 02:59:08,697 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-10-03 02:59:08,698 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-10-03 02:59:08,699 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-10-03 02:59:08,700 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-10-03 02:59:08,701 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-10-03 02:59:08,701 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-10-03 02:59:08,702 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-10-03 02:59:08,702 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-10-03 02:59:08,702 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-10-03 02:59:08,703 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-10-03 02:59:08,704 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-10-03 02:59:08,704 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 02:59:08,720 INFO L113 SettingsManager]: Loading preferences was successful [2019-10-03 02:59:08,720 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-10-03 02:59:08,720 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-10-03 02:59:08,720 INFO L138 SettingsManager]: * Log level for plugins=info [2019-10-03 02:59:08,721 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-10-03 02:59:08,721 INFO L138 SettingsManager]: * User list type=DISABLED [2019-10-03 02:59:08,722 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-10-03 02:59:08,722 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-10-03 02:59:08,722 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-10-03 02:59:08,722 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-10-03 02:59:08,723 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-10-03 02:59:08,723 INFO L138 SettingsManager]: * sizeof long=4 [2019-10-03 02:59:08,723 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-10-03 02:59:08,724 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-10-03 02:59:08,724 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-10-03 02:59:08,724 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-10-03 02:59:08,724 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-10-03 02:59:08,724 INFO L138 SettingsManager]: * sizeof long double=12 [2019-10-03 02:59:08,724 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-10-03 02:59:08,725 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-10-03 02:59:08,725 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-10-03 02:59:08,725 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-10-03 02:59:08,725 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-10-03 02:59:08,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-10-03 02:59:08,726 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-10-03 02:59:08,726 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-10-03 02:59:08,726 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-10-03 02:59:08,726 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-10-03 02:59:08,727 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-10-03 02:59:08,727 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-10-03 02:59:08,777 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-10-03 02:59:08,789 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-10-03 02:59:08,792 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-10-03 02:59:08,794 INFO L271 PluginConnector]: Initializing CDTParser... [2019-10-03 02:59:08,794 INFO L275 PluginConnector]: CDTParser initialized [2019-10-03 02:59:08,795 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec5_product51.cil.c [2019-10-03 02:59:08,861 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39484c2f2/a8a23e8ada9f4cdca0f8caeedffe4d84/FLAG0270bdcff [2019-10-03 02:59:09,385 INFO L306 CDTParser]: Found 1 translation units. [2019-10-03 02:59:09,386 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec5_product51.cil.c [2019-10-03 02:59:09,400 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39484c2f2/a8a23e8ada9f4cdca0f8caeedffe4d84/FLAG0270bdcff [2019-10-03 02:59:09,740 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/39484c2f2/a8a23e8ada9f4cdca0f8caeedffe4d84 [2019-10-03 02:59:09,750 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-10-03 02:59:09,751 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-10-03 02:59:09,752 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:09,752 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-10-03 02:59:09,756 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-10-03 02:59:09,757 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:09" (1/1) ... [2019-10-03 02:59:09,763 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2979f7f1 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:09, skipping insertion in model container [2019-10-03 02:59:09,764 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 03.10 02:59:09" (1/1) ... [2019-10-03 02:59:09,773 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-10-03 02:59:09,820 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-10-03 02:59:10,286 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:10,308 INFO L188 MainTranslator]: Completed pre-run [2019-10-03 02:59:10,424 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-10-03 02:59:10,467 INFO L192 MainTranslator]: Completed translation [2019-10-03 02:59:10,468 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:10 WrapperNode [2019-10-03 02:59:10,468 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-10-03 02:59:10,469 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-10-03 02:59:10,469 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-10-03 02:59:10,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-10-03 02:59:10,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:10" (1/1) ... [2019-10-03 02:59:10,483 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:10" (1/1) ... [2019-10-03 02:59:10,508 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:10" (1/1) ... [2019-10-03 02:59:10,509 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:10" (1/1) ... [2019-10-03 02:59:10,547 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:10" (1/1) ... [2019-10-03 02:59:10,559 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:10" (1/1) ... [2019-10-03 02:59:10,564 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:10" (1/1) ... [2019-10-03 02:59:10,572 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-10-03 02:59:10,573 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-10-03 02:59:10,573 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-10-03 02:59:10,573 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-10-03 02:59:10,575 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:10" (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 02:59:10,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-10-03 02:59:10,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-10-03 02:59:10,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-10-03 02:59:10,636 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-10-03 02:59:10,636 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-10-03 02:59:10,636 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:59:10,636 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-10-03 02:59:10,637 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-10-03 02:59:10,637 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-10-03 02:59:10,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-10-03 02:59:10,637 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-10-03 02:59:10,638 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-10-03 02:59:10,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-10-03 02:59:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-10-03 02:59:10,639 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-10-03 02:59:10,640 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-10-03 02:59:10,640 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-10-03 02:59:10,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-10-03 02:59:10,641 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-10-03 02:59:10,641 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-10-03 02:59:10,641 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-10-03 02:59:10,641 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-10-03 02:59:10,641 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-10-03 02:59:10,641 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-10-03 02:59:10,642 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-10-03 02:59:10,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-10-03 02:59:10,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-10-03 02:59:10,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-10-03 02:59:10,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-10-03 02:59:10,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-10-03 02:59:10,643 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-10-03 02:59:10,644 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-10-03 02:59:10,644 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-10-03 02:59:10,644 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-10-03 02:59:10,644 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-10-03 02:59:10,644 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-10-03 02:59:10,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-10-03 02:59:10,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-10-03 02:59:10,645 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-10-03 02:59:10,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-10-03 02:59:10,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:59:10,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:59:10,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:59:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-10-03 02:59:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-10-03 02:59:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-10-03 02:59:10,646 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-10-03 02:59:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-10-03 02:59:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-10-03 02:59:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-10-03 02:59:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-10-03 02:59:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-10-03 02:59:10,647 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-10-03 02:59:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-10-03 02:59:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-10-03 02:59:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-10-03 02:59:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-10-03 02:59:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__2 [2019-10-03 02:59:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__3 [2019-10-03 02:59:10,648 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-10-03 02:59:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-10-03 02:59:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-10-03 02:59:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__highWaterSensor [2019-10-03 02:59:10,649 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-10-03 02:59:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-10-03 02:59:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-10-03 02:59:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-10-03 02:59:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-10-03 02:59:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-10-03 02:59:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-10-03 02:59:10,650 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-10-03 02:59:10,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification5_spec__1 [2019-10-03 02:59:10,651 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-10-03 02:59:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-10-03 02:59:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-10-03 02:59:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-10-03 02:59:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-10-03 02:59:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-10-03 02:59:10,652 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-10-03 02:59:10,653 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-10-03 02:59:10,653 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-10-03 02:59:10,653 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-10-03 02:59:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-10-03 02:59:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-10-03 02:59:10,654 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-10-03 02:59:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-10-03 02:59:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-10-03 02:59:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-10-03 02:59:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-10-03 02:59:10,655 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-10-03 02:59:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-10-03 02:59:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-10-03 02:59:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-10-03 02:59:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-10-03 02:59:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-10-03 02:59:10,656 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-10-03 02:59:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-10-03 02:59:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-10-03 02:59:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-10-03 02:59:10,657 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-10-03 02:59:11,756 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-10-03 02:59:11,756 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-10-03 02:59:11,758 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:11 BoogieIcfgContainer [2019-10-03 02:59:11,758 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-10-03 02:59:11,760 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-10-03 02:59:11,760 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-10-03 02:59:11,763 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-10-03 02:59:11,764 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 03.10 02:59:09" (1/3) ... [2019-10-03 02:59:11,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b3d7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:11, skipping insertion in model container [2019-10-03 02:59:11,765 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 03.10 02:59:10" (2/3) ... [2019-10-03 02:59:11,765 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@27b3d7e8 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 03.10 02:59:11, skipping insertion in model container [2019-10-03 02:59:11,766 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 03.10 02:59:11" (3/3) ... [2019-10-03 02:59:11,767 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec5_product51.cil.c [2019-10-03 02:59:11,779 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-10-03 02:59:11,791 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-10-03 02:59:11,811 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-10-03 02:59:11,845 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-10-03 02:59:11,845 INFO L378 AbstractCegarLoop]: Hoare is false [2019-10-03 02:59:11,846 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-10-03 02:59:11,846 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-10-03 02:59:11,847 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-10-03 02:59:11,847 INFO L382 AbstractCegarLoop]: Difference is false [2019-10-03 02:59:11,847 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-10-03 02:59:11,849 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-10-03 02:59:11,879 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states. [2019-10-03 02:59:11,893 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 60 [2019-10-03 02:59:11,894 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:11,895 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:11,898 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:11,903 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:11,904 INFO L82 PathProgramCache]: Analyzing trace with hash -878720759, now seen corresponding path program 1 times [2019-10-03 02:59:11,905 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:11,969 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:11,970 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:11,970 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:11,970 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:12,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:12,321 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:12,324 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:12,328 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-10-03 02:59:12,329 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:12,336 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:59:12,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:59:12,359 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:12,362 INFO L87 Difference]: Start difference. First operand 187 states. Second operand 2 states. [2019-10-03 02:59:12,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:12,392 INFO L93 Difference]: Finished difference Result 155 states and 182 transitions. [2019-10-03 02:59:12,392 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:59:12,393 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 59 [2019-10-03 02:59:12,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:12,408 INFO L225 Difference]: With dead ends: 155 [2019-10-03 02:59:12,408 INFO L226 Difference]: Without dead ends: 144 [2019-10-03 02:59:12,409 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 02:59:12,425 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 144 states. [2019-10-03 02:59:12,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 144 to 144. [2019-10-03 02:59:12,460 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 144 states. [2019-10-03 02:59:12,464 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 170 transitions. [2019-10-03 02:59:12,465 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 170 transitions. Word has length 59 [2019-10-03 02:59:12,466 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:12,466 INFO L475 AbstractCegarLoop]: Abstraction has 144 states and 170 transitions. [2019-10-03 02:59:12,466 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:59:12,466 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 170 transitions. [2019-10-03 02:59:12,470 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 61 [2019-10-03 02:59:12,470 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:12,471 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:12,471 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:12,471 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:12,472 INFO L82 PathProgramCache]: Analyzing trace with hash -1980606616, now seen corresponding path program 1 times [2019-10-03 02:59:12,472 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:12,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:12,475 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:12,475 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:12,475 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:12,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:12,593 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:12,594 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:12,594 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-10-03 02:59:12,594 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:12,596 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-10-03 02:59:12,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-10-03 02:59:12,597 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-10-03 02:59:12,597 INFO L87 Difference]: Start difference. First operand 144 states and 170 transitions. Second operand 3 states. [2019-10-03 02:59:12,615 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:12,615 INFO L93 Difference]: Finished difference Result 135 states and 158 transitions. [2019-10-03 02:59:12,616 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-10-03 02:59:12,616 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 60 [2019-10-03 02:59:12,617 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:12,621 INFO L225 Difference]: With dead ends: 135 [2019-10-03 02:59:12,622 INFO L226 Difference]: Without dead ends: 135 [2019-10-03 02:59:12,623 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 02:59:12,623 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 135 states. [2019-10-03 02:59:12,642 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 135 to 135. [2019-10-03 02:59:12,643 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 135 states. [2019-10-03 02:59:12,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 135 states to 135 states and 158 transitions. [2019-10-03 02:59:12,648 INFO L78 Accepts]: Start accepts. Automaton has 135 states and 158 transitions. Word has length 60 [2019-10-03 02:59:12,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:12,651 INFO L475 AbstractCegarLoop]: Abstraction has 135 states and 158 transitions. [2019-10-03 02:59:12,651 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-10-03 02:59:12,651 INFO L276 IsEmpty]: Start isEmpty. Operand 135 states and 158 transitions. [2019-10-03 02:59:12,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 65 [2019-10-03 02:59:12,656 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:12,656 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:12,656 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:12,657 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:12,657 INFO L82 PathProgramCache]: Analyzing trace with hash 1839911150, now seen corresponding path program 1 times [2019-10-03 02:59:12,657 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:12,661 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:12,662 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:12,662 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:12,662 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:12,728 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:12,874 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:12,874 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:12,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:59:12,875 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:12,875 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:59:12,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:59:12,876 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:12,876 INFO L87 Difference]: Start difference. First operand 135 states and 158 transitions. Second operand 7 states. [2019-10-03 02:59:13,550 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:13,550 INFO L93 Difference]: Finished difference Result 298 states and 358 transitions. [2019-10-03 02:59:13,551 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-10-03 02:59:13,551 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 64 [2019-10-03 02:59:13,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:13,559 INFO L225 Difference]: With dead ends: 298 [2019-10-03 02:59:13,565 INFO L226 Difference]: Without dead ends: 298 [2019-10-03 02:59:13,566 INFO L640 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 [2019-10-03 02:59:13,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 298 states. [2019-10-03 02:59:13,613 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 298 to 290. [2019-10-03 02:59:13,613 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 290 states. [2019-10-03 02:59:13,619 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 290 states to 290 states and 352 transitions. [2019-10-03 02:59:13,620 INFO L78 Accepts]: Start accepts. Automaton has 290 states and 352 transitions. Word has length 64 [2019-10-03 02:59:13,620 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:13,621 INFO L475 AbstractCegarLoop]: Abstraction has 290 states and 352 transitions. [2019-10-03 02:59:13,621 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:13,621 INFO L276 IsEmpty]: Start isEmpty. Operand 290 states and 352 transitions. [2019-10-03 02:59:13,625 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 71 [2019-10-03 02:59:13,625 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:13,626 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-10-03 02:59:13,626 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:13,626 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:13,626 INFO L82 PathProgramCache]: Analyzing trace with hash 423224560, now seen corresponding path program 1 times [2019-10-03 02:59:13,627 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:13,629 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:13,630 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:13,630 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:13,630 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:13,743 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-10-03 02:59:13,744 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:13,744 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-10-03 02:59:13,744 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:13,745 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-10-03 02:59:13,745 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-10-03 02:59:13,746 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:13,746 INFO L87 Difference]: Start difference. First operand 290 states and 352 transitions. Second operand 7 states. [2019-10-03 02:59:14,508 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:14,508 INFO L93 Difference]: Finished difference Result 469 states and 590 transitions. [2019-10-03 02:59:14,509 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2019-10-03 02:59:14,509 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 70 [2019-10-03 02:59:14,510 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:14,514 INFO L225 Difference]: With dead ends: 469 [2019-10-03 02:59:14,514 INFO L226 Difference]: Without dead ends: 469 [2019-10-03 02:59:14,515 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 19 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=43, Invalid=113, Unknown=0, NotChecked=0, Total=156 [2019-10-03 02:59:14,516 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 469 states. [2019-10-03 02:59:14,572 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 469 to 416. [2019-10-03 02:59:14,573 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2019-10-03 02:59:14,579 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 503 transitions. [2019-10-03 02:59:14,580 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 503 transitions. Word has length 70 [2019-10-03 02:59:14,583 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:14,583 INFO L475 AbstractCegarLoop]: Abstraction has 416 states and 503 transitions. [2019-10-03 02:59:14,583 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-10-03 02:59:14,583 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 503 transitions. [2019-10-03 02:59:14,588 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-03 02:59:14,593 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:14,593 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:14,594 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:14,594 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:14,594 INFO L82 PathProgramCache]: Analyzing trace with hash -742421187, now seen corresponding path program 1 times [2019-10-03 02:59:14,595 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:14,597 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:14,597 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:14,598 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:14,598 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:14,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:14,722 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:14,723 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:14,723 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-10-03 02:59:14,723 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:14,725 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-10-03 02:59:14,725 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-10-03 02:59:14,726 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-10-03 02:59:14,726 INFO L87 Difference]: Start difference. First operand 416 states and 503 transitions. Second operand 6 states. [2019-10-03 02:59:14,773 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:14,773 INFO L93 Difference]: Finished difference Result 426 states and 513 transitions. [2019-10-03 02:59:14,775 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-10-03 02:59:14,775 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 92 [2019-10-03 02:59:14,775 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:14,779 INFO L225 Difference]: With dead ends: 426 [2019-10-03 02:59:14,780 INFO L226 Difference]: Without dead ends: 426 [2019-10-03 02:59:14,780 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 7 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2019-10-03 02:59:14,781 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 426 states. [2019-10-03 02:59:14,835 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 426 to 426. [2019-10-03 02:59:14,836 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 426 states. [2019-10-03 02:59:14,840 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 426 states to 426 states and 513 transitions. [2019-10-03 02:59:14,840 INFO L78 Accepts]: Start accepts. Automaton has 426 states and 513 transitions. Word has length 92 [2019-10-03 02:59:14,840 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:14,841 INFO L475 AbstractCegarLoop]: Abstraction has 426 states and 513 transitions. [2019-10-03 02:59:14,841 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-10-03 02:59:14,841 INFO L276 IsEmpty]: Start isEmpty. Operand 426 states and 513 transitions. [2019-10-03 02:59:14,844 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-03 02:59:14,844 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:14,844 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:14,845 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:14,845 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:14,845 INFO L82 PathProgramCache]: Analyzing trace with hash -40821313, now seen corresponding path program 1 times [2019-10-03 02:59:14,845 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:14,852 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:14,853 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:14,853 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:14,853 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:14,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:14,994 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:14,995 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:14,995 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-10-03 02:59:14,995 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:14,996 INFO L454 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-10-03 02:59:14,996 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-10-03 02:59:14,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:14,997 INFO L87 Difference]: Start difference. First operand 426 states and 513 transitions. Second operand 8 states. [2019-10-03 02:59:15,039 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:15,039 INFO L93 Difference]: Finished difference Result 440 states and 527 transitions. [2019-10-03 02:59:15,040 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-10-03 02:59:15,040 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 92 [2019-10-03 02:59:15,043 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:15,048 INFO L225 Difference]: With dead ends: 440 [2019-10-03 02:59:15,048 INFO L226 Difference]: Without dead ends: 440 [2019-10-03 02:59:15,049 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 4 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=13, Invalid=43, Unknown=0, NotChecked=0, Total=56 [2019-10-03 02:59:15,050 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 440 states. [2019-10-03 02:59:15,072 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 440 to 434. [2019-10-03 02:59:15,073 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 434 states. [2019-10-03 02:59:15,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 434 states to 434 states and 521 transitions. [2019-10-03 02:59:15,077 INFO L78 Accepts]: Start accepts. Automaton has 434 states and 521 transitions. Word has length 92 [2019-10-03 02:59:15,079 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:15,079 INFO L475 AbstractCegarLoop]: Abstraction has 434 states and 521 transitions. [2019-10-03 02:59:15,079 INFO L476 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-10-03 02:59:15,079 INFO L276 IsEmpty]: Start isEmpty. Operand 434 states and 521 transitions. [2019-10-03 02:59:15,084 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 93 [2019-10-03 02:59:15,084 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:15,084 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:15,085 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:15,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:15,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1684659584, now seen corresponding path program 1 times [2019-10-03 02:59:15,086 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:15,090 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:15,090 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:15,091 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:15,091 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:15,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:15,222 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:15,223 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:15,223 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2019-10-03 02:59:15,223 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:15,224 INFO L454 AbstractCegarLoop]: Interpolant automaton has 4 states [2019-10-03 02:59:15,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2019-10-03 02:59:15,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:59:15,225 INFO L87 Difference]: Start difference. First operand 434 states and 521 transitions. Second operand 4 states. [2019-10-03 02:59:15,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:15,574 INFO L93 Difference]: Finished difference Result 982 states and 1225 transitions. [2019-10-03 02:59:15,574 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2019-10-03 02:59:15,574 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 92 [2019-10-03 02:59:15,575 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:15,581 INFO L225 Difference]: With dead ends: 982 [2019-10-03 02:59:15,581 INFO L226 Difference]: Without dead ends: 982 [2019-10-03 02:59:15,582 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 10 GetRequests, 7 SyntacticMatches, 1 SemanticMatches, 2 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2019-10-03 02:59:15,583 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 982 states. [2019-10-03 02:59:15,623 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 982 to 965. [2019-10-03 02:59:15,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 965 states. [2019-10-03 02:59:15,629 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 965 states to 965 states and 1188 transitions. [2019-10-03 02:59:15,629 INFO L78 Accepts]: Start accepts. Automaton has 965 states and 1188 transitions. Word has length 92 [2019-10-03 02:59:15,630 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:15,630 INFO L475 AbstractCegarLoop]: Abstraction has 965 states and 1188 transitions. [2019-10-03 02:59:15,630 INFO L476 AbstractCegarLoop]: Interpolant automaton has 4 states. [2019-10-03 02:59:15,630 INFO L276 IsEmpty]: Start isEmpty. Operand 965 states and 1188 transitions. [2019-10-03 02:59:15,633 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 97 [2019-10-03 02:59:15,633 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:15,633 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:15,633 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:15,634 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:15,634 INFO L82 PathProgramCache]: Analyzing trace with hash 1838654426, now seen corresponding path program 1 times [2019-10-03 02:59:15,634 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:15,636 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:15,637 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:15,637 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:15,637 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:15,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:15,829 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-10-03 02:59:15,829 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-10-03 02:59:15,830 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-10-03 02:59:15,830 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:15,830 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-10-03 02:59:15,831 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-10-03 02:59:15,831 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=55, Unknown=0, NotChecked=0, Total=72 [2019-10-03 02:59:15,831 INFO L87 Difference]: Start difference. First operand 965 states and 1188 transitions. Second operand 9 states. [2019-10-03 02:59:17,283 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:17,283 INFO L93 Difference]: Finished difference Result 1885 states and 2323 transitions. [2019-10-03 02:59:17,284 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 16 states. [2019-10-03 02:59:17,284 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 96 [2019-10-03 02:59:17,285 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:17,297 INFO L225 Difference]: With dead ends: 1885 [2019-10-03 02:59:17,297 INFO L226 Difference]: Without dead ends: 1885 [2019-10-03 02:59:17,298 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 25 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 57 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=79, Invalid=263, Unknown=0, NotChecked=0, Total=342 [2019-10-03 02:59:17,301 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1885 states. [2019-10-03 02:59:17,378 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1885 to 1660. [2019-10-03 02:59:17,378 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1660 states. [2019-10-03 02:59:17,387 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1660 states to 1660 states and 2011 transitions. [2019-10-03 02:59:17,388 INFO L78 Accepts]: Start accepts. Automaton has 1660 states and 2011 transitions. Word has length 96 [2019-10-03 02:59:17,389 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:17,390 INFO L475 AbstractCegarLoop]: Abstraction has 1660 states and 2011 transitions. [2019-10-03 02:59:17,390 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-10-03 02:59:17,390 INFO L276 IsEmpty]: Start isEmpty. Operand 1660 states and 2011 transitions. [2019-10-03 02:59:17,394 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 158 [2019-10-03 02:59:17,394 INFO L403 BasicCegarLoop]: Found error trace [2019-10-03 02:59:17,395 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 02:59:17,395 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-10-03 02:59:17,395 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:17,395 INFO L82 PathProgramCache]: Analyzing trace with hash -1624055928, now seen corresponding path program 1 times [2019-10-03 02:59:17,396 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-10-03 02:59:17,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:17,398 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-10-03 02:59:17,398 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-10-03 02:59:17,398 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-10-03 02:59:17,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-10-03 02:59:17,560 INFO L134 CoverageAnalysis]: Checked inductivity of 42 backedges. 22 proven. 7 refuted. 0 times theorem prover too weak. 13 trivial. 0 not checked. [2019-10-03 02:59:17,561 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-10-03 02:59:17,561 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-10-03 02:59:17,562 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 158 with the following transitions: [2019-10-03 02:59:17,565 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [92], [94], [97], [101], [102], [103], [119], [123], [124], [125], [128], [130], [136], [140], [143], [144], [145], [154], [158], [162], [165], [168], [170], [176], [178], [181], [197], [198], [208], [209], [210], [212], [217], [219], [220], [221], [222], [228], [231], [235], [241], [270], [274], [275], [278], [280], [283], [290], [293], [296], [300], [301], [304], [305], [306], [308], [309], [310], [312], [315], [317], [320], [323], [332], [334], [335], [336], [430], [431], [441], [449], [450], [451], [452], [453], [454], [455], [456], [457], [491], [492], [493], [494], [497], [498], [499], [500], [501], [502], [507], [508], [511], [512], [513], [514], [515], [516], [517], [518], [519], [520], [525], [526], [527], [528], [531], [532], [533], [534], [535], [536], [537], [538], [539], [543], [544], [545], [553], [554], [555] [2019-10-03 02:59:17,611 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-10-03 02:59:17,612 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-10-03 02:59:17,689 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-10-03 02:59:17,691 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 69 root evaluator evaluations with a maximum evaluation depth of 0. Performed 69 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 128 variables. [2019-10-03 02:59:17,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-10-03 02:59:17,696 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-10-03 02:59:17,754 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-10-03 02:59:17,755 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-10-03 02:59:17,760 INFO L420 sIntCurrentIteration]: We unified 156 AI predicates to 156 [2019-10-03 02:59:17,761 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-10-03 02:59:17,761 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-10-03 02:59:17,762 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [11] total 11 [2019-10-03 02:59:17,762 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-10-03 02:59:17,763 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-10-03 02:59:17,763 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-10-03 02:59:17,763 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-10-03 02:59:17,764 INFO L87 Difference]: Start difference. First operand 1660 states and 2011 transitions. Second operand 2 states. [2019-10-03 02:59:17,764 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-10-03 02:59:17,764 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-10-03 02:59:17,764 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-10-03 02:59:17,765 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 157 [2019-10-03 02:59:17,765 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-10-03 02:59:17,765 INFO L225 Difference]: With dead ends: 2 [2019-10-03 02:59:17,765 INFO L226 Difference]: Without dead ends: 0 [2019-10-03 02:59:17,766 INFO L640 BasicCegarLoop]: 0 DeclaredPredicates, 156 GetRequests, 156 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 02:59:17,766 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-10-03 02:59:17,766 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-10-03 02:59:17,766 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-10-03 02:59:17,767 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-10-03 02:59:17,767 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 157 [2019-10-03 02:59:17,767 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-10-03 02:59:17,767 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-10-03 02:59:17,767 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-10-03 02:59:17,767 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-10-03 02:59:17,768 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-10-03 02:59:17,773 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 03.10 02:59:17 BoogieIcfgContainer [2019-10-03 02:59:17,774 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-10-03 02:59:17,777 INFO L168 Benchmark]: Toolchain (without parser) took 8024.37 ms. Allocated memory was 137.9 MB in the beginning and 338.2 MB in the end (delta: 200.3 MB). Free memory was 84.6 MB in the beginning and 64.8 MB in the end (delta: 19.8 MB). Peak memory consumption was 220.1 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:17,778 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 103.9 MB in the beginning and 103.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. [2019-10-03 02:59:17,779 INFO L168 Benchmark]: CACSL2BoogieTranslator took 716.41 ms. Allocated memory was 137.9 MB in the beginning and 198.7 MB in the end (delta: 60.8 MB). Free memory was 84.3 MB in the beginning and 160.7 MB in the end (delta: -76.3 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:17,803 INFO L168 Benchmark]: Boogie Preprocessor took 103.64 ms. Allocated memory is still 198.7 MB. Free memory was 160.7 MB in the beginning and 156.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:17,805 INFO L168 Benchmark]: RCFGBuilder took 1185.08 ms. Allocated memory was 198.7 MB in the beginning and 218.6 MB in the end (delta: 19.9 MB). Free memory was 156.8 MB in the beginning and 184.7 MB in the end (delta: -27.9 MB). Peak memory consumption was 92.0 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:17,806 INFO L168 Benchmark]: TraceAbstraction took 6014.26 ms. Allocated memory was 218.6 MB in the beginning and 338.2 MB in the end (delta: 119.5 MB). Free memory was 184.7 MB in the beginning and 64.8 MB in the end (delta: 119.9 MB). Peak memory consumption was 239.5 MB. Max. memory is 7.1 GB. [2019-10-03 02:59:17,810 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 137.9 MB. Free memory was 103.9 MB in the beginning and 103.7 MB in the end (delta: 209.7 kB). Peak memory consumption was 209.7 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 716.41 ms. Allocated memory was 137.9 MB in the beginning and 198.7 MB in the end (delta: 60.8 MB). Free memory was 84.3 MB in the beginning and 160.7 MB in the end (delta: -76.3 MB). Peak memory consumption was 21.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 103.64 ms. Allocated memory is still 198.7 MB. Free memory was 160.7 MB in the beginning and 156.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1185.08 ms. Allocated memory was 198.7 MB in the beginning and 218.6 MB in the end (delta: 19.9 MB). Free memory was 156.8 MB in the beginning and 184.7 MB in the end (delta: -27.9 MB). Peak memory consumption was 92.0 MB. Max. memory is 7.1 GB. * TraceAbstraction took 6014.26 ms. Allocated memory was 218.6 MB in the beginning and 338.2 MB in the end (delta: 119.5 MB). Free memory was 184.7 MB in the beginning and 64.8 MB in the end (delta: 119.9 MB). Peak memory consumption was 239.5 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 948]: 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 43 procedures, 251 locations, 1 error locations. SAFE Result, 5.9s OverallTime, 9 OverallIterations, 3 TraceHistogramMax, 3.4s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1480 SDtfs, 1076 SDslu, 3415 SDs, 0 SdLazy, 1750 SolverSat, 300 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 2.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 245 GetRequests, 194 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 71 ImplicationChecksByTransitivity, 0.5s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1660occurred in iteration=8, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.1s AbstIntTime, 1 AbstIntIterations, 1 AbstIntStrong, 1.0 AbsIntWeakeningRatio, 0.8461538461538461 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.4s AutomataMinimizationTime, 9 MinimizatonAttempts, 309 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.9s InterpolantComputationTime, 782 NumberOfCodeBlocks, 782 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 773 ConstructedInterpolants, 0 QuantifiedInterpolants, 121202 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 59/66 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...