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_spec2_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.24-fea9116 [2019-09-20 13:30:05,568 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-09-20 13:30:05,570 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-09-20 13:30:05,582 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-09-20 13:30:05,583 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-09-20 13:30:05,584 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-09-20 13:30:05,585 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-09-20 13:30:05,587 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-09-20 13:30:05,588 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-09-20 13:30:05,589 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-09-20 13:30:05,590 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-09-20 13:30:05,591 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-09-20 13:30:05,591 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-09-20 13:30:05,592 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-09-20 13:30:05,593 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-09-20 13:30:05,594 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-09-20 13:30:05,595 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-09-20 13:30:05,596 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-09-20 13:30:05,598 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-09-20 13:30:05,600 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-09-20 13:30:05,601 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-09-20 13:30:05,603 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-09-20 13:30:05,604 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-09-20 13:30:05,604 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-09-20 13:30:05,607 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-09-20 13:30:05,607 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-09-20 13:30:05,607 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-09-20 13:30:05,608 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-09-20 13:30:05,609 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-09-20 13:30:05,610 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-09-20 13:30:05,610 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-09-20 13:30:05,611 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-09-20 13:30:05,611 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-09-20 13:30:05,612 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-09-20 13:30:05,613 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-09-20 13:30:05,613 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-09-20 13:30:05,614 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-09-20 13:30:05,614 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-09-20 13:30:05,614 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-09-20 13:30:05,615 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-09-20 13:30:05,616 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-09-20 13:30:05,617 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 13:30:05,632 INFO L113 SettingsManager]: Loading preferences was successful [2019-09-20 13:30:05,633 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-09-20 13:30:05,633 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2019-09-20 13:30:05,633 INFO L138 SettingsManager]: * Log level for plugins=info [2019-09-20 13:30:05,634 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2019-09-20 13:30:05,634 INFO L138 SettingsManager]: * User list type=DISABLED [2019-09-20 13:30:05,635 INFO L138 SettingsManager]: * Ignore calls to and inside polymorphic procedures=false [2019-09-20 13:30:05,635 INFO L138 SettingsManager]: * Ignore calls to recursive procedures=false [2019-09-20 13:30:05,635 INFO L136 SettingsManager]: Preferences of Abstract Interpretation differ from their defaults: [2019-09-20 13:30:05,635 INFO L138 SettingsManager]: * Abstract domain=IntervalDomain [2019-09-20 13:30:05,636 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-09-20 13:30:05,636 INFO L138 SettingsManager]: * sizeof long=4 [2019-09-20 13:30:05,636 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-09-20 13:30:05,636 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-09-20 13:30:05,637 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-09-20 13:30:05,637 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-09-20 13:30:05,637 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-09-20 13:30:05,637 INFO L138 SettingsManager]: * sizeof long double=12 [2019-09-20 13:30:05,637 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-09-20 13:30:05,638 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-09-20 13:30:05,638 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-09-20 13:30:05,638 INFO L138 SettingsManager]: * Remove goto edges from RCFG=true [2019-09-20 13:30:05,638 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-09-20 13:30:05,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-09-20 13:30:05,639 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-09-20 13:30:05,639 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-09-20 13:30:05,639 INFO L138 SettingsManager]: * Trace refinement strategy=TAIPAN [2019-09-20 13:30:05,639 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-09-20 13:30:05,640 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-09-20 13:30:05,640 INFO L138 SettingsManager]: * Abstract interpretation Mode=USE_PREDICATES [2019-09-20 13:30:05,686 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-09-20 13:30:05,700 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-09-20 13:30:05,705 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-09-20 13:30:05,706 INFO L271 PluginConnector]: Initializing CDTParser... [2019-09-20 13:30:05,709 INFO L275 PluginConnector]: CDTParser initialized [2019-09-20 13:30:05,710 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec2_product28.cil.c [2019-09-20 13:30:05,783 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44d8f30a6/446ffa08345e4f64b7e8708f92386808/FLAG0a1b0ed05 [2019-09-20 13:30:06,392 INFO L306 CDTParser]: Found 1 translation units. [2019-09-20 13:30:06,396 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec2_product28.cil.c [2019-09-20 13:30:06,425 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44d8f30a6/446ffa08345e4f64b7e8708f92386808/FLAG0a1b0ed05 [2019-09-20 13:30:06,641 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/44d8f30a6/446ffa08345e4f64b7e8708f92386808 [2019-09-20 13:30:06,650 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-09-20 13:30:06,652 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2019-09-20 13:30:06,653 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:06,653 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-09-20 13:30:06,658 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-09-20 13:30:06,662 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:06" (1/1) ... [2019-09-20 13:30:06,664 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5cf17af0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:06, skipping insertion in model container [2019-09-20 13:30:06,665 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 20.09 01:30:06" (1/1) ... [2019-09-20 13:30:06,673 INFO L142 MainTranslator]: Starting translation in SV-COMP mode [2019-09-20 13:30:06,731 INFO L173 MainTranslator]: Built tables and reachable declarations [2019-09-20 13:30:07,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:07,247 INFO L188 MainTranslator]: Completed pre-run [2019-09-20 13:30:07,341 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-09-20 13:30:07,377 INFO L192 MainTranslator]: Completed translation [2019-09-20 13:30:07,377 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07 WrapperNode [2019-09-20 13:30:07,377 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-09-20 13:30:07,378 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-09-20 13:30:07,378 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-09-20 13:30:07,379 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-09-20 13:30:07,393 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,394 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,412 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,412 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,460 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,468 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (1/1) ... [2019-09-20 13:30:07,483 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-09-20 13:30:07,484 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-09-20 13:30:07,484 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-09-20 13:30:07,484 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-09-20 13:30:07,486 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (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 13:30:07,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2019-09-20 13:30:07,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-09-20 13:30:07,546 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:07,546 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2019-09-20 13:30:07,547 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2019-09-20 13:30:07,547 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2019-09-20 13:30:07,547 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2019-09-20 13:30:07,547 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2019-09-20 13:30:07,547 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2019-09-20 13:30:07,548 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2019-09-20 13:30:07,548 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2019-09-20 13:30:07,548 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2019-09-20 13:30:07,548 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2019-09-20 13:30:07,548 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2019-09-20 13:30:07,549 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2019-09-20 13:30:07,549 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2019-09-20 13:30:07,549 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2019-09-20 13:30:07,549 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2019-09-20 13:30:07,549 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:07,550 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2019-09-20 13:30:07,550 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2019-09-20 13:30:07,550 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2019-09-20 13:30:07,550 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2019-09-20 13:30:07,550 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2019-09-20 13:30:07,551 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2019-09-20 13:30:07,551 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2019-09-20 13:30:07,551 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2019-09-20 13:30:07,551 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2019-09-20 13:30:07,551 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2019-09-20 13:30:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2019-09-20 13:30:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2019-09-20 13:30:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2019-09-20 13:30:07,552 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2019-09-20 13:30:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2019-09-20 13:30:07,553 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2019-09-20 13:30:07,554 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2019-09-20 13:30:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2019-09-20 13:30:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2019-09-20 13:30:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2019-09-20 13:30:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2019-09-20 13:30:07,554 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2019-09-20 13:30:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2019-09-20 13:30:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2019-09-20 13:30:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2019-09-20 13:30:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2019-09-20 13:30:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2019-09-20 13:30:07,555 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2019-09-20 13:30:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2019-09-20 13:30:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2019-09-20 13:30:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2019-09-20 13:30:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2019-09-20 13:30:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-09-20 13:30:07,556 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2019-09-20 13:30:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2019-09-20 13:30:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2019-09-20 13:30:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2019-09-20 13:30:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2019-09-20 13:30:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2019-09-20 13:30:07,557 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2019-09-20 13:30:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__2 [2019-09-20 13:30:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2019-09-20 13:30:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2019-09-20 13:30:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2019-09-20 13:30:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2019-09-20 13:30:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2019-09-20 13:30:07,558 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2019-09-20 13:30:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure test [2019-09-20 13:30:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification2_spec__1 [2019-09-20 13:30:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2019-09-20 13:30:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2019-09-20 13:30:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2019-09-20 13:30:07,559 INFO L130 BoogieDeclarations]: Found specification of procedure main [2019-09-20 13:30:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2019-09-20 13:30:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2019-09-20 13:30:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure free [2019-09-20 13:30:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2019-09-20 13:30:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2019-09-20 13:30:07,560 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2019-09-20 13:30:07,561 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-09-20 13:30:07,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2019-09-20 13:30:07,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2019-09-20 13:30:07,561 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-09-20 13:30:07,561 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2019-09-20 13:30:07,561 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2019-09-20 13:30:07,561 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2019-09-20 13:30:07,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2019-09-20 13:30:07,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2019-09-20 13:30:07,562 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2019-09-20 13:30:07,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2019-09-20 13:30:07,562 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2019-09-20 13:30:07,562 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-09-20 13:30:08,655 INFO L278 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-09-20 13:30:08,656 INFO L283 CfgBuilder]: Removed 5 assume(true) statements. [2019-09-20 13:30:08,657 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:08 BoogieIcfgContainer [2019-09-20 13:30:08,657 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-09-20 13:30:08,659 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-09-20 13:30:08,659 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-09-20 13:30:08,662 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-09-20 13:30:08,662 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 20.09 01:30:06" (1/3) ... [2019-09-20 13:30:08,663 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb892ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:08, skipping insertion in model container [2019-09-20 13:30:08,663 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 20.09 01:30:07" (2/3) ... [2019-09-20 13:30:08,664 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@6bb892ad and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 20.09 01:30:08, skipping insertion in model container [2019-09-20 13:30:08,664 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 20.09 01:30:08" (3/3) ... [2019-09-20 13:30:08,666 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec2_product28.cil.c [2019-09-20 13:30:08,692 INFO L152 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-09-20 13:30:08,700 INFO L164 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-09-20 13:30:08,716 INFO L252 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2019-09-20 13:30:08,742 INFO L377 AbstractCegarLoop]: Interprodecural is true [2019-09-20 13:30:08,742 INFO L378 AbstractCegarLoop]: Hoare is false [2019-09-20 13:30:08,742 INFO L379 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-09-20 13:30:08,743 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-09-20 13:30:08,743 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-09-20 13:30:08,743 INFO L382 AbstractCegarLoop]: Difference is false [2019-09-20 13:30:08,743 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-09-20 13:30:08,743 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-09-20 13:30:08,763 INFO L276 IsEmpty]: Start isEmpty. Operand 173 states. [2019-09-20 13:30:08,776 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 52 [2019-09-20 13:30:08,776 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:08,777 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] [2019-09-20 13:30:08,780 INFO L418 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:08,785 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:08,785 INFO L82 PathProgramCache]: Analyzing trace with hash 428209433, now seen corresponding path program 1 times [2019-09-20 13:30:08,788 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:08,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:08,837 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:08,837 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:08,838 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:09,004 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:09,184 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 13:30:09,186 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:09,187 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2019-09-20 13:30:09,187 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:09,193 INFO L454 AbstractCegarLoop]: Interpolant automaton has 2 states [2019-09-20 13:30:09,209 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2019-09-20 13:30:09,214 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2019-09-20 13:30:09,216 INFO L87 Difference]: Start difference. First operand 173 states. Second operand 2 states. [2019-09-20 13:30:09,251 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:09,251 INFO L93 Difference]: Finished difference Result 130 states and 151 transitions. [2019-09-20 13:30:09,252 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2019-09-20 13:30:09,253 INFO L78 Accepts]: Start accepts. Automaton has 2 states. Word has length 51 [2019-09-20 13:30:09,253 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:09,266 INFO L225 Difference]: With dead ends: 130 [2019-09-20 13:30:09,266 INFO L226 Difference]: Without dead ends: 119 [2019-09-20 13:30:09,268 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 13:30:09,285 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 119 states. [2019-09-20 13:30:09,313 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 119 to 119. [2019-09-20 13:30:09,314 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 119 states. [2019-09-20 13:30:09,317 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 119 states to 119 states and 139 transitions. [2019-09-20 13:30:09,319 INFO L78 Accepts]: Start accepts. Automaton has 119 states and 139 transitions. Word has length 51 [2019-09-20 13:30:09,319 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:09,320 INFO L475 AbstractCegarLoop]: Abstraction has 119 states and 139 transitions. [2019-09-20 13:30:09,320 INFO L476 AbstractCegarLoop]: Interpolant automaton has 2 states. [2019-09-20 13:30:09,320 INFO L276 IsEmpty]: Start isEmpty. Operand 119 states and 139 transitions. [2019-09-20 13:30:09,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 53 [2019-09-20 13:30:09,324 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:09,324 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 13:30:09,324 INFO L418 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:09,325 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:09,325 INFO L82 PathProgramCache]: Analyzing trace with hash -1561969621, now seen corresponding path program 1 times [2019-09-20 13:30:09,325 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:09,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:09,328 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:09,328 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:09,328 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:09,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:09,476 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 13:30:09,477 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:09,477 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2019-09-20 13:30:09,477 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:09,481 INFO L454 AbstractCegarLoop]: Interpolant automaton has 3 states [2019-09-20 13:30:09,481 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2019-09-20 13:30:09,482 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2019-09-20 13:30:09,482 INFO L87 Difference]: Start difference. First operand 119 states and 139 transitions. Second operand 3 states. [2019-09-20 13:30:09,509 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:09,509 INFO L93 Difference]: Finished difference Result 110 states and 127 transitions. [2019-09-20 13:30:09,510 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2019-09-20 13:30:09,510 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 52 [2019-09-20 13:30:09,511 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:09,513 INFO L225 Difference]: With dead ends: 110 [2019-09-20 13:30:09,513 INFO L226 Difference]: Without dead ends: 110 [2019-09-20 13:30:09,514 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 13:30:09,514 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2019-09-20 13:30:09,524 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2019-09-20 13:30:09,524 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2019-09-20 13:30:09,526 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 127 transitions. [2019-09-20 13:30:09,526 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 127 transitions. Word has length 52 [2019-09-20 13:30:09,526 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:09,527 INFO L475 AbstractCegarLoop]: Abstraction has 110 states and 127 transitions. [2019-09-20 13:30:09,527 INFO L476 AbstractCegarLoop]: Interpolant automaton has 3 states. [2019-09-20 13:30:09,527 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 127 transitions. [2019-09-20 13:30:09,529 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 58 [2019-09-20 13:30:09,529 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:09,529 INFO L407 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-09-20 13:30:09,530 INFO L418 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:09,530 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:09,530 INFO L82 PathProgramCache]: Analyzing trace with hash 166162683, now seen corresponding path program 1 times [2019-09-20 13:30:09,530 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:09,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:09,533 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:09,533 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:09,534 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:09,560 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:09,648 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 13:30:09,648 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:09,648 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:09,648 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:09,649 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:09,649 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:09,649 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=30, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:09,650 INFO L87 Difference]: Start difference. First operand 110 states and 127 transitions. Second operand 7 states. [2019-09-20 13:30:10,204 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:10,204 INFO L93 Difference]: Finished difference Result 243 states and 292 transitions. [2019-09-20 13:30:10,205 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2019-09-20 13:30:10,205 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 57 [2019-09-20 13:30:10,206 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:10,211 INFO L225 Difference]: With dead ends: 243 [2019-09-20 13:30:10,213 INFO L226 Difference]: Without dead ends: 243 [2019-09-20 13:30:10,214 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 13:30:10,215 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2019-09-20 13:30:10,271 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 231. [2019-09-20 13:30:10,271 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2019-09-20 13:30:10,277 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 280 transitions. [2019-09-20 13:30:10,277 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 280 transitions. Word has length 57 [2019-09-20 13:30:10,278 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:10,278 INFO L475 AbstractCegarLoop]: Abstraction has 231 states and 280 transitions. [2019-09-20 13:30:10,278 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:10,279 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 280 transitions. [2019-09-20 13:30:10,284 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 63 [2019-09-20 13:30:10,288 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:10,289 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] [2019-09-20 13:30:10,289 INFO L418 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:10,289 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:10,289 INFO L82 PathProgramCache]: Analyzing trace with hash -1270413566, now seen corresponding path program 1 times [2019-09-20 13:30:10,290 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:10,292 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:10,293 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:10,293 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:10,293 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:10,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:10,462 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 13:30:10,462 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:10,462 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-09-20 13:30:10,463 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:10,463 INFO L454 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-09-20 13:30:10,463 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-09-20 13:30:10,464 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=9, Invalid=21, Unknown=0, NotChecked=0, Total=30 [2019-09-20 13:30:10,464 INFO L87 Difference]: Start difference. First operand 231 states and 280 transitions. Second operand 6 states. [2019-09-20 13:30:10,662 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:10,662 INFO L93 Difference]: Finished difference Result 416 states and 506 transitions. [2019-09-20 13:30:10,663 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:10,663 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 62 [2019-09-20 13:30:10,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:10,668 INFO L225 Difference]: With dead ends: 416 [2019-09-20 13:30:10,668 INFO L226 Difference]: Without dead ends: 416 [2019-09-20 13:30:10,669 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 12 GetRequests, 5 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=21, Invalid=51, Unknown=0, NotChecked=0, Total=72 [2019-09-20 13:30:10,670 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 416 states. [2019-09-20 13:30:10,715 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 416 to 410. [2019-09-20 13:30:10,715 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 410 states. [2019-09-20 13:30:10,719 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 410 states to 410 states and 500 transitions. [2019-09-20 13:30:10,719 INFO L78 Accepts]: Start accepts. Automaton has 410 states and 500 transitions. Word has length 62 [2019-09-20 13:30:10,721 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:10,723 INFO L475 AbstractCegarLoop]: Abstraction has 410 states and 500 transitions. [2019-09-20 13:30:10,723 INFO L476 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-09-20 13:30:10,723 INFO L276 IsEmpty]: Start isEmpty. Operand 410 states and 500 transitions. [2019-09-20 13:30:10,730 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 67 [2019-09-20 13:30:10,731 INFO L399 BasicCegarLoop]: Found error trace [2019-09-20 13:30:10,731 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] [2019-09-20 13:30:10,736 INFO L418 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-09-20 13:30:10,737 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-09-20 13:30:10,737 INFO L82 PathProgramCache]: Analyzing trace with hash -1668441378, now seen corresponding path program 1 times [2019-09-20 13:30:10,737 INFO L69 tionRefinementEngine]: Using refinement strategy TaipanRefinementStrategy [2019-09-20 13:30:10,742 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:10,742 INFO L103 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-09-20 13:30:10,743 INFO L119 rtionOrderModulation]: Craig_TreeInterpolation forces the order to NOT_INCREMENTALLY [2019-09-20 13:30:10,743 INFO L289 anRefinementStrategy]: Using traceCheck mode SMTINTERPOL with AssertCodeBlockOrder NOT_INCREMENTALLY (IT: Craig_TreeInterpolation) [2019-09-20 13:30:10,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-09-20 13:30:10,875 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 13:30:10,875 INFO L312 seRefinementStrategy]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-09-20 13:30:10,875 INFO L327 seRefinementStrategy]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2019-09-20 13:30:10,876 INFO L257 anRefinementStrategy]: Using the first perfect interpolant sequence [2019-09-20 13:30:10,876 INFO L454 AbstractCegarLoop]: Interpolant automaton has 7 states [2019-09-20 13:30:10,876 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2019-09-20 13:30:10,877 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=31, Unknown=0, NotChecked=0, Total=42 [2019-09-20 13:30:10,877 INFO L87 Difference]: Start difference. First operand 410 states and 500 transitions. Second operand 7 states. [2019-09-20 13:30:11,231 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-09-20 13:30:11,232 INFO L93 Difference]: Finished difference Result 302 states and 349 transitions. [2019-09-20 13:30:11,232 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2019-09-20 13:30:11,232 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 66 [2019-09-20 13:30:11,233 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-09-20 13:30:11,233 INFO L225 Difference]: With dead ends: 302 [2019-09-20 13:30:11,233 INFO L226 Difference]: Without dead ends: 0 [2019-09-20 13:30:11,234 INFO L636 BasicCegarLoop]: 0 DeclaredPredicates, 17 GetRequests, 8 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=33, Invalid=77, Unknown=0, NotChecked=0, Total=110 [2019-09-20 13:30:11,234 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2019-09-20 13:30:11,234 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2019-09-20 13:30:11,234 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2019-09-20 13:30:11,234 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2019-09-20 13:30:11,234 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 66 [2019-09-20 13:30:11,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-09-20 13:30:11,235 INFO L475 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2019-09-20 13:30:11,235 INFO L476 AbstractCegarLoop]: Interpolant automaton has 7 states. [2019-09-20 13:30:11,235 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2019-09-20 13:30:11,235 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2019-09-20 13:30:11,240 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 20.09 01:30:11 BoogieIcfgContainer [2019-09-20 13:30:11,240 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-09-20 13:30:11,243 INFO L168 Benchmark]: Toolchain (without parser) took 4590.66 ms. Allocated memory was 137.9 MB in the beginning and 267.9 MB in the end (delta: 130.0 MB). Free memory was 84.5 MB in the beginning and 128.7 MB in the end (delta: -44.2 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:11,244 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 103.8 MB in the beginning and 103.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. [2019-09-20 13:30:11,245 INFO L168 Benchmark]: CACSL2BoogieTranslator took 725.01 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 84.3 MB in the beginning and 164.2 MB in the end (delta: -79.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:11,246 INFO L168 Benchmark]: Boogie Preprocessor took 105.04 ms. Allocated memory is still 199.2 MB. Free memory was 164.2 MB in the beginning and 160.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:11,247 INFO L168 Benchmark]: RCFGBuilder took 1173.72 ms. Allocated memory is still 199.2 MB. Free memory was 160.4 MB in the beginning and 74.6 MB in the end (delta: 85.8 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:11,248 INFO L168 Benchmark]: TraceAbstraction took 2581.78 ms. Allocated memory was 199.2 MB in the beginning and 267.9 MB in the end (delta: 68.7 MB). Free memory was 74.6 MB in the beginning and 128.7 MB in the end (delta: -54.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. [2019-09-20 13:30:11,252 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 137.9 MB. Free memory was 103.8 MB in the beginning and 103.6 MB in the end (delta: 212.8 kB). Peak memory consumption was 212.8 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 725.01 ms. Allocated memory was 137.9 MB in the beginning and 199.2 MB in the end (delta: 61.3 MB). Free memory was 84.3 MB in the beginning and 164.2 MB in the end (delta: -79.9 MB). Peak memory consumption was 21.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 105.04 ms. Allocated memory is still 199.2 MB. Free memory was 164.2 MB in the beginning and 160.4 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.8 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1173.72 ms. Allocated memory is still 199.2 MB. Free memory was 160.4 MB in the beginning and 74.6 MB in the end (delta: 85.8 MB). Peak memory consumption was 85.8 MB. Max. memory is 7.1 GB. * TraceAbstraction took 2581.78 ms. Allocated memory was 199.2 MB in the beginning and 267.9 MB in the end (delta: 68.7 MB). Free memory was 74.6 MB in the beginning and 128.7 MB in the end (delta: -54.1 MB). Peak memory consumption was 14.6 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 82]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 236 locations, 1 error locations. SAFE Result, 2.5s OverallTime, 5 OverallIterations, 1 TraceHistogramMax, 1.2s AutomataDifference, 0.0s DeadEndRemovalTime, 0.0s HoareAnnotationTime, HoareTripleCheckerStatistics: 657 SDtfs, 436 SDslu, 1193 SDs, 0 SdLazy, 428 SolverSat, 116 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 47 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 25 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=410occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s AbstIntTime, 0 AbstIntIterations, 0 AbstIntStrong, NaN AbsIntWeakeningRatio, NaN AbsIntAvgWeakeningVarsNumRemoved, NaN AbsIntAvgWeakenedConjuncts, 0.0s DumpTime, AutomataMinimizationStatistics: 0.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 18 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TraceCheckStatistics: 0.0s SsaConstructionTime, 0.2s SatisfiabilityAnalysisTime, 0.5s InterpolantComputationTime, 288 NumberOfCodeBlocks, 288 NumberOfCodeBlocksAsserted, 5 NumberOfCheckSat, 283 ConstructedInterpolants, 0 QuantifiedInterpolants, 30083 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 5 InterpolantComputations, 5 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, InvariantSynthesisStatistics: No data available, InterpolantConsolidationStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...