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_product46.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:29,630 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:29,632 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:29,644 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:29,645 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:29,647 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:29,648 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:29,650 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:29,652 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:29,653 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:29,654 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:29,655 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:29,656 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:29,657 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:29,658 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:29,659 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:29,660 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:29,661 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:29,662 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:29,664 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:29,666 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:29,667 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:29,668 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:29,669 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:29,672 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:29,672 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:29,672 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:29,673 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:29,674 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:29,675 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:29,675 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:29,676 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:29,677 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:29,678 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:29,679 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:29,679 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:29,680 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:29,680 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:29,680 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:29,681 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:29,682 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:29,683 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/ai/svcomp-Reach-32bit-Automizer_Default+AIv2_INT.epf [2019-09-20 13:30:29,699 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:29,699 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:29,699 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:29,700 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:29,700 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:29,701 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:29,701 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:29,701 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:29,701 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:29,701 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:29,702 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:29,702 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:29,703 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:29,703 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:29,703 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:29,703 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:29,703 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:29,704 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:29,704 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:29,704 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:29,704 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:29,704 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:29,705 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:29,705 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:29,705 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:29,705 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:29,706 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:29,706 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:29,706 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:29,706 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:29,736 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:29,752 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:29,756 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:29,758 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:29,758 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:29,759 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product46.cil.c [2019-09-20 13:30:29,839 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/136f47e04/4a0f9ec42c49483bb0d6f96b329e391e/FLAGfc8d0aa01 [2019-09-20 13:30:30,439 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:30,440 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product46.cil.c [2019-09-20 13:30:30,453 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/136f47e04/4a0f9ec42c49483bb0d6f96b329e391e/FLAGfc8d0aa01 [2019-09-20 13:30:30,673 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/136f47e04/4a0f9ec42c49483bb0d6f96b329e391e [2019-09-20 13:30:30,681 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:30,683 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:30,685 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:30,685 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:30,689 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:30,690 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:30" (1/1) ... [2019-09-20 13:30:30,693 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2feb5f16 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:30, skipping insertion in model container [2019-09-20 13:30:30,693 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:30" (1/1) ... [2019-09-20 13:30:30,701 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:30,751 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:31,237 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:31,252 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:31,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:31,405 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:31,406 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:31 WrapperNode [2019-09-20 13:30:31,406 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:31,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:31,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:31,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:31,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:31" (1/1) ... [2019-09-20 13:30:31,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:31" (1/1) ... [2019-09-20 13:30:31,441 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:31" (1/1) ... [2019-09-20 13:30:31,442 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:31" (1/1) ... [2019-09-20 13:30:31,473 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:31" (1/1) ... [2019-09-20 13:30:31,485 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:31" (1/1) ... [2019-09-20 13:30:31,490 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:31" (1/1) ... [2019-09-20 13:30:31,498 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:31,499 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:31,499 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:31,499 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:31,500 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:31" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:31,564 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2019-09-20 13:30:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:31,565 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:31,566 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:31,567 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:31,568 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:31,569 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:31,570 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:31,570 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:31,570 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:31,570 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:31,570 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:31,571 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2019-09-20 13:30:31,571 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2019-09-20 13:30:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:31,573 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2019-09-20 13:30:31,574 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:31,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:31,575 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2019-09-20 13:30:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:31,576 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:31,577 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:31,578 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:31,579 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:31,580 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2019-09-20 13:30:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2019-09-20 13:30:31,581 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2019-09-20 13:30:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2019-09-20 13:30:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:31,582 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:32,701 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:32,701 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:32,703 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:32 BoogieIcfgContainer [2019-09-20 13:30:32,703 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:32,704 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:32,704 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:32,708 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:32,708 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:30" (1/3) ... [2019-09-20 13:30:32,709 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc97603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:32, skipping insertion in model container [2019-09-20 13:30:32,709 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:31" (2/3) ... [2019-09-20 13:30:32,710 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1bc97603 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:32, skipping insertion in model container [2019-09-20 13:30:32,710 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:32" (3/3) ... [2019-09-20 13:30:32,712 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product46.cil.c [2019-09-20 13:30:32,722 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:32,731 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:32,749 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:32,774 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:32,774 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:32,774 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:32,774 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:32,774 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:32,774 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:32,775 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:32,775 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:32,795 INFO L276 IsEmpty]: Start isEmpty. Operand 183 states. [2019-09-20 13:30:32,812 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:32,814 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:32,816 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:32,818 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:32,827 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:32,828 INFO L82 PathProgramCache]: Analyzing trace with hash -1153584498, now seen corresponding path program 1 times [2019-09-20 13:30:32,830 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:32,888 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:32,888 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:32,889 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:32,889 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:33,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:33,237 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:33,240 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:33,241 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:33,241 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:33,248 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:33,263 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:33,264 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:33,267 INFO L87 Difference]: Start difference. First operand 183 states. Second operand 2 states. [2019-09-20 13:30:33,314 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:33,315 INFO L93 Difference]: Finished difference Result 151 states and 177 transitions. [2019-09-20 13:30:33,315 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:33,316 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 52 [2019-09-20 13:30:33,326 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:33,345 INFO L225 Difference]: With dead ends: 151 [2019-09-20 13:30:33,345 INFO L226 Difference]: Without dead ends: 140 [2019-09-20 13:30:33,350 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 2 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:33,370 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2019-09-20 13:30:33,420 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2019-09-20 13:30:33,422 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2019-09-20 13:30:33,428 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 165 transitions. [2019-09-20 13:30:33,429 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 165 transitions. Word has length 52 [2019-09-20 13:30:33,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:33,430 INFO L475 AbstractCegarLoop]: Abstraction has 140 states and 165 transitions. [2019-09-20 13:30:33,430 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:33,430 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 165 transitions. [2019-09-20 13:30:33,434 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 54 [2019-09-20 13:30:33,434 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:33,434 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:33,434 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:33,435 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:33,435 INFO L82 PathProgramCache]: Analyzing trace with hash -1299238668, now seen corresponding path program 1 times [2019-09-20 13:30:33,435 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:33,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:33,438 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:33,438 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:33,438 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:33,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:33,591 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:33,592 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:33,592 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:33,593 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:33,595 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:33,596 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:33,596 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:33,596 INFO L87 Difference]: Start difference. First operand 140 states and 165 transitions. Second operand 3 states. [2019-09-20 13:30:33,620 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:33,621 INFO L93 Difference]: Finished difference Result 131 states and 153 transitions. [2019-09-20 13:30:33,621 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:33,621 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 53 [2019-09-20 13:30:33,622 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:33,624 INFO L225 Difference]: With dead ends: 131 [2019-09-20 13:30:33,625 INFO L226 Difference]: Without dead ends: 131 [2019-09-20 13:30:33,625 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:33,626 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-09-20 13:30:33,634 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-09-20 13:30:33,634 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-09-20 13:30:33,636 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 153 transitions. [2019-09-20 13:30:33,636 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 153 transitions. Word has length 53 [2019-09-20 13:30:33,636 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:33,636 INFO L475 AbstractCegarLoop]: Abstraction has 131 states and 153 transitions. [2019-09-20 13:30:33,637 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:33,637 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 153 transitions. [2019-09-20 13:30:33,639 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2019-09-20 13:30:33,639 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:33,639 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:33,639 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:33,640 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:33,640 INFO L82 PathProgramCache]: Analyzing trace with hash 1314633419, now seen corresponding path program 1 times [2019-09-20 13:30:33,640 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:33,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:33,643 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:33,643 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:33,643 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:33,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:33,770 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:33,771 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:33,771 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:33,771 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:33,772 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:33,772 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:33,772 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:33,772 INFO L87 Difference]: Start difference. First operand 131 states and 153 transitions. Second operand 7 states. [2019-09-20 13:30:34,107 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:34,107 INFO L93 Difference]: Finished difference Result 131 states and 152 transitions. [2019-09-20 13:30:34,108 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2019-09-20 13:30:34,108 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 58 [2019-09-20 13:30:34,108 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:34,110 INFO L225 Difference]: With dead ends: 131 [2019-09-20 13:30:34,110 INFO L226 Difference]: Without dead ends: 131 [2019-09-20 13:30:34,111 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 13 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=63, Unknown=0, NotChecked=0, Total=90 [2019-09-20 13:30:34,111 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 131 states. [2019-09-20 13:30:34,119 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 131 to 131. [2019-09-20 13:30:34,119 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 131 states. [2019-09-20 13:30:34,121 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 131 states to 131 states and 152 transitions. [2019-09-20 13:30:34,121 INFO L78 Accepts]: Start accepts. Automaton has 131 states and 152 transitions. Word has length 58 [2019-09-20 13:30:34,121 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:34,121 INFO L475 AbstractCegarLoop]: Abstraction has 131 states and 152 transitions. [2019-09-20 13:30:34,122 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:34,122 INFO L276 IsEmpty]: Start isEmpty. Operand 131 states and 152 transitions. [2019-09-20 13:30:34,124 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 72 [2019-09-20 13:30:34,125 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:34,125 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:34,125 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:34,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:34,126 INFO L82 PathProgramCache]: Analyzing trace with hash 1259242830, now seen corresponding path program 1 times [2019-09-20 13:30:34,126 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:34,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:34,129 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:34,129 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:34,130 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:34,187 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:34,319 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:34,320 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:34,320 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:30:34,320 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:34,321 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:30:34,321 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:30:34,321 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:30:34,321 INFO L87 Difference]: Start difference. First operand 131 states and 152 transitions. Second operand 5 states. [2019-09-20 13:30:34,944 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:34,944 INFO L93 Difference]: Finished difference Result 249 states and 288 transitions. [2019-09-20 13:30:34,945 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:34,945 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 71 [2019-09-20 13:30:34,945 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:34,949 INFO L225 Difference]: With dead ends: 249 [2019-09-20 13:30:34,950 INFO L226 Difference]: Without dead ends: 249 [2019-09-20 13:30:34,950 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 10 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=19, Invalid=37, Unknown=0, NotChecked=0, Total=56 [2019-09-20 13:30:34,951 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 249 states. [2019-09-20 13:30:34,996 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 249 to 230. [2019-09-20 13:30:34,996 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 230 states. [2019-09-20 13:30:35,001 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 230 states to 230 states and 262 transitions. [2019-09-20 13:30:35,001 INFO L78 Accepts]: Start accepts. Automaton has 230 states and 262 transitions. Word has length 71 [2019-09-20 13:30:35,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:35,002 INFO L475 AbstractCegarLoop]: Abstraction has 230 states and 262 transitions. [2019-09-20 13:30:35,002 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:30:35,005 INFO L276 IsEmpty]: Start isEmpty. Operand 230 states and 262 transitions. [2019-09-20 13:30:35,006 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 86 [2019-09-20 13:30:35,006 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:35,006 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:35,007 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:35,007 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:35,010 INFO L82 PathProgramCache]: Analyzing trace with hash 2031890280, now seen corresponding path program 1 times [2019-09-20 13:30:35,010 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:35,013 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,014 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:35,014 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,014 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:35,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:35,126 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:35,126 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:35,126 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:35,127 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:35,127 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:35,127 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:35,128 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:35,128 INFO L87 Difference]: Start difference. First operand 230 states and 262 transitions. Second operand 6 states. [2019-09-20 13:30:35,329 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:35,329 INFO L93 Difference]: Finished difference Result 364 states and 420 transitions. [2019-09-20 13:30:35,330 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:35,330 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 85 [2019-09-20 13:30:35,331 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:35,334 INFO L225 Difference]: With dead ends: 364 [2019-09-20 13:30:35,334 INFO L226 Difference]: Without dead ends: 364 [2019-09-20 13:30:35,335 INFO L636 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 [2019-09-20 13:30:35,336 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 364 states. [2019-09-20 13:30:35,351 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 364 to 360. [2019-09-20 13:30:35,352 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 360 states. [2019-09-20 13:30:35,354 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 360 states to 360 states and 416 transitions. [2019-09-20 13:30:35,354 INFO L78 Accepts]: Start accepts. Automaton has 360 states and 416 transitions. Word has length 85 [2019-09-20 13:30:35,355 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:35,355 INFO L475 AbstractCegarLoop]: Abstraction has 360 states and 416 transitions. [2019-09-20 13:30:35,355 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:35,355 INFO L276 IsEmpty]: Start isEmpty. Operand 360 states and 416 transitions. [2019-09-20 13:30:35,357 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:35,357 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:35,357 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:35,358 INFO L418 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:35,358 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:35,358 INFO L82 PathProgramCache]: Analyzing trace with hash -797697522, now seen corresponding path program 1 times [2019-09-20 13:30:35,358 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:35,360 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,361 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:35,361 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,361 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:35,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:35,477 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:35,478 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:35,478 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:35,478 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:35,479 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:35,479 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:35,479 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:35,479 INFO L87 Difference]: Start difference. First operand 360 states and 416 transitions. Second operand 6 states. [2019-09-20 13:30:35,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:35,759 INFO L93 Difference]: Finished difference Result 561 states and 664 transitions. [2019-09-20 13:30:35,759 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:35,760 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 89 [2019-09-20 13:30:35,760 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:35,769 INFO L225 Difference]: With dead ends: 561 [2019-09-20 13:30:35,769 INFO L226 Difference]: Without dead ends: 561 [2019-09-20 13:30:35,770 INFO L636 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 [2019-09-20 13:30:35,771 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 561 states. [2019-09-20 13:30:35,821 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 561 to 543. [2019-09-20 13:30:35,821 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2019-09-20 13:30:35,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 641 transitions. [2019-09-20 13:30:35,827 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 641 transitions. Word has length 89 [2019-09-20 13:30:35,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:35,828 INFO L475 AbstractCegarLoop]: Abstraction has 543 states and 641 transitions. [2019-09-20 13:30:35,829 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:35,829 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 641 transitions. [2019-09-20 13:30:35,832 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:35,832 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:35,832 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:35,832 INFO L418 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:35,833 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:35,833 INFO L82 PathProgramCache]: Analyzing trace with hash -1720381105, now seen corresponding path program 1 times [2019-09-20 13:30:35,833 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:35,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,838 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:35,838 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,838 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:35,870 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:35,929 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:35,929 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:35,929 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2019-09-20 13:30:35,929 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:35,930 INFO L454 AbstractCegarLoop]: Interpolant automaton has 5 states [2019-09-20 13:30:35,930 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2019-09-20 13:30:35,931 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2019-09-20 13:30:35,931 INFO L87 Difference]: Start difference. First operand 543 states and 641 transitions. Second operand 5 states. [2019-09-20 13:30:35,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:35,953 INFO L93 Difference]: Finished difference Result 553 states and 651 transitions. [2019-09-20 13:30:35,953 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2019-09-20 13:30:35,953 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 89 [2019-09-20 13:30:35,954 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:35,957 INFO L225 Difference]: With dead ends: 553 [2019-09-20 13:30:35,957 INFO L226 Difference]: Without dead ends: 553 [2019-09-20 13:30:35,957 INFO L636 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 [2019-09-20 13:30:35,958 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 553 states. [2019-09-20 13:30:35,972 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 553 to 547. [2019-09-20 13:30:35,973 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 547 states. [2019-09-20 13:30:35,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 547 states to 547 states and 644 transitions. [2019-09-20 13:30:35,976 INFO L78 Accepts]: Start accepts. Automaton has 547 states and 644 transitions. Word has length 89 [2019-09-20 13:30:35,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:35,976 INFO L475 AbstractCegarLoop]: Abstraction has 547 states and 644 transitions. [2019-09-20 13:30:35,976 INFO L476 AbstractCegarLoop]: Interpolant automaton has 5 states. [2019-09-20 13:30:35,976 INFO L276 IsEmpty]: Start isEmpty. Operand 547 states and 644 transitions. [2019-09-20 13:30:35,981 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 90 [2019-09-20 13:30:35,982 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:35,982 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:35,982 INFO L418 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:35,983 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:35,983 INFO L82 PathProgramCache]: Analyzing trace with hash 1730580689, now seen corresponding path program 1 times [2019-09-20 13:30:35,983 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:35,985 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,986 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:35,986 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:35,986 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:36,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:36,111 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-09-20 13:30:36,111 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:36,111 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2019-09-20 13:30:36,112 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:36,116 INFO L454 AbstractCegarLoop]: Interpolant automaton has 9 states [2019-09-20 13:30:36,117 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2019-09-20 13:30:36,117 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=57, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:36,117 INFO L87 Difference]: Start difference. First operand 547 states and 644 transitions. Second operand 9 states. [2019-09-20 13:30:36,182 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:36,182 INFO L93 Difference]: Finished difference Result 564 states and 667 transitions. [2019-09-20 13:30:36,183 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-09-20 13:30:36,183 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 89 [2019-09-20 13:30:36,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:36,189 INFO L225 Difference]: With dead ends: 564 [2019-09-20 13:30:36,189 INFO L226 Difference]: Without dead ends: 564 [2019-09-20 13:30:36,190 INFO L636 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 [2019-09-20 13:30:36,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 564 states. [2019-09-20 13:30:36,211 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 564 to 554. [2019-09-20 13:30:36,211 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 554 states. [2019-09-20 13:30:36,215 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 554 states to 554 states and 651 transitions. [2019-09-20 13:30:36,215 INFO L78 Accepts]: Start accepts. Automaton has 554 states and 651 transitions. Word has length 89 [2019-09-20 13:30:36,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:36,216 INFO L475 AbstractCegarLoop]: Abstraction has 554 states and 651 transitions. [2019-09-20 13:30:36,216 INFO L476 AbstractCegarLoop]: Interpolant automaton has 9 states. [2019-09-20 13:30:36,216 INFO L276 IsEmpty]: Start isEmpty. Operand 554 states and 651 transitions. [2019-09-20 13:30:36,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 102 [2019-09-20 13:30:36,219 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:36,219 INFO L407 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:36,220 INFO L418 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:36,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:36,220 INFO L82 PathProgramCache]: Analyzing trace with hash -1929788468, now seen corresponding path program 1 times [2019-09-20 13:30:36,220 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:36,222 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:36,222 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:36,223 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:36,223 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:36,261 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:36,356 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 2 refuted. 0 times theorem prover too weak. 1 trivial. 0 not checked. [2019-09-20 13:30:36,357 INFO L300 seRefinementStrategy]: The current sequences of interpolants are not accepted, trying to find more. [2019-09-20 13:30:36,357 INFO L193 anRefinementStrategy]: Switched to InterpolantGenerator mode ABSTRACT_INTERPRETATION [2019-09-20 13:30:36,358 INFO L205 CegarAbsIntRunner]: Running AI on error trace of length 102 with the following transitions: [2019-09-20 13:30:36,360 INFO L207 CegarAbsIntRunner]: [50], [51], [52], [56], [59], [83], [99], [103], [104], [105], [120], [123], [125], [134], [138], [142], [145], [150], [156], [158], [164], [167], [186], [188], [191], [196], [197], [198], [199], [201], [206], [208], [209], [210], [211], [217], [221], [265], [269], [270], [273], [274], [277], [279], [282], [292], [293], [294], [317], [319], [320], [389], [390], [400], [402], [407], [409], [412], [414], [419], [426], [434], [435], [436], [437], [438], [439], [440], [441], [442], [480], [481], [482], [483], [488], [492], [493], [496], [497], [500], [501], [502], [508], [509], [510], [511], [518], [520], [521], [526], [527], [528], [529], [530], [531], [532], [534], [535], [536] [2019-09-20 13:30:36,402 INFO L148 AbstractInterpreter]: Using domain IntervalDomain [2019-09-20 13:30:36,402 INFO L101 FixpointEngine]: Starting fixpoint engine with domain IntervalDomain (maxUnwinding=3, maxParallelStates=2) [2019-09-20 13:30:36,478 INFO L266 AbstractInterpreter]: Error location(s) were unreachable [2019-09-20 13:30:36,480 INFO L272 AbstractInterpreter]: Visited 2 different actions 2 times. Never merged. Never widened. Performed 68 root evaluator evaluations with a maximum evaluation depth of 0. Performed 68 inverse root evaluator evaluations with a maximum inverse evaluation depth of 0. Never found a fixpoint. Largest state had 126 variables. [2019-09-20 13:30:36,485 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:36,485 INFO L403 sIntCurrentIteration]: Generating AbsInt predicates [2019-09-20 13:30:36,562 INFO L219 lantSequenceWeakener]: Could never weaken! [2019-09-20 13:30:36,562 INFO L418 sIntCurrentIteration]: Unifying AI predicates [2019-09-20 13:30:36,566 INFO L420 sIntCurrentIteration]: We unified 100 AI predicates to 100 [2019-09-20 13:30:36,566 INFO L429 sIntCurrentIteration]: Finished generation of AbsInt predicates [2019-09-20 13:30:36,567 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 1 imperfect interpolant sequences. [2019-09-20 13:30:36,567 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [9] total 9 [2019-09-20 13:30:36,567 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:36,568 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:36,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:36,568 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:36,568 INFO L87 Difference]: Start difference. First operand 554 states and 651 transitions. Second operand 2 states. [2019-09-20 13:30:36,569 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:36,569 INFO L93 Difference]: Finished difference Result 2 states and 1 transitions. [2019-09-20 13:30:36,569 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:36,570 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 101 [2019-09-20 13:30:36,570 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:36,570 INFO L225 Difference]: With dead ends: 2 [2019-09-20 13:30:36,570 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:36,570 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 100 GetRequests, 100 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:36,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:36,571 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:36,571 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:36,571 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:36,571 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 101 [2019-09-20 13:30:36,572 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:36,572 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:36,572 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:36,572 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:36,572 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:36,577 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:36 BoogieIcfgContainer [2019-09-20 13:30:36,577 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:36,580 INFO L168 Benchmark]: Toolchain (without parser) took 5896.57 ms. Allocated memory was 131.1 MB in the beginning and 271.1 MB in the end (delta: 140.0 MB). Free memory was 85.9 MB in the beginning and 79.2 MB in the end (delta: 6.7 MB). Peak memory consumption was 146.7 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:36,581 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:36,582 INFO L168 Benchmark]: CACSL2BoogieTranslator took 721.97 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 85.7 MB in the beginning and 162.6 MB in the end (delta: -76.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:36,583 INFO L168 Benchmark]: Boogie Preprocessor took 91.68 ms. Allocated memory is still 198.7 MB. Free memory was 162.6 MB in the beginning and 158.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:36,584 INFO L168 Benchmark]: RCFGBuilder took 1204.34 ms. Allocated memory was 198.7 MB in the beginning and 218.6 MB in the end (delta: 19.9 MB). Free memory was 158.7 MB in the beginning and 187.9 MB in the end (delta: -29.2 MB). Peak memory consumption was 93.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:36,585 INFO L168 Benchmark]: TraceAbstraction took 3873.33 ms. Allocated memory was 218.6 MB in the beginning and 271.1 MB in the end (delta: 52.4 MB). Free memory was 187.9 MB in the beginning and 79.2 MB in the end (delta: 108.8 MB). Peak memory consumption was 161.2 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:36,589 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 131.1 MB. Free memory was 105.2 MB in the beginning and 105.0 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 721.97 ms. Allocated memory was 131.1 MB in the beginning and 198.7 MB in the end (delta: 67.6 MB). Free memory was 85.7 MB in the beginning and 162.6 MB in the end (delta: -76.9 MB). Peak memory consumption was 27.3 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 91.68 ms. Allocated memory is still 198.7 MB. Free memory was 162.6 MB in the beginning and 158.7 MB in the end (delta: 3.9 MB). Peak memory consumption was 3.9 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1204.34 ms. Allocated memory was 198.7 MB in the beginning and 218.6 MB in the end (delta: 19.9 MB). Free memory was 158.7 MB in the beginning and 187.9 MB in the end (delta: -29.2 MB). Peak memory consumption was 93.6 MB. Max. memory is 7.1 GB. * TraceAbstraction took 3873.33 ms. Allocated memory was 218.6 MB in the beginning and 271.1 MB in the end (delta: 52.4 MB). Free memory was 187.9 MB in the beginning and 79.2 MB in the end (delta: 108.8 MB). Peak memory consumption was 161.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 957]: 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 40 procedures, 239 locations, 1 error locations. SAFE Result, 3.8s OverallTime, 9 OverallIterations, 2 TraceHistogramMax, 1.6s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 1323 SDtfs, 582 SDslu, 3282 SDs, 0 SdLazy, 659 SolverSat, 162 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 1.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 174 GetRequests, 133 SyntacticMatches, 1 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=554occurred 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, 1.13 AbsIntAvgWeakeningVarsNumRemoved, 0.0 AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.2s AutomataMinimizationTime, 9 MinimizatonAttempts, 57 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.3s SatisfiabilityAnalysisTime, 0.8s InterpolantComputationTime, 687 NumberOfCodeBlocks, 687 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 678 ConstructedInterpolants, 0 QuantifiedInterpolants, 87130 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 9 InterpolantComputations, 8 PerfectInterpolantSequences, 1/3 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...