/usr/bin/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/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:34:17,396 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:34:17,399 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:34:17,411 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:34:17,412 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:34:17,413 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:34:17,414 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:34:17,416 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:34:17,418 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:34:17,419 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:34:17,420 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:34:17,421 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:34:17,422 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:34:17,423 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:34:17,424 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:34:17,425 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:34:17,426 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:34:17,427 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:34:17,429 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:34:17,431 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:34:17,433 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:34:17,434 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:34:17,435 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:34:17,436 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:34:17,439 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:34:17,439 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:34:17,440 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:34:17,441 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:34:17,441 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:34:17,442 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:34:17,442 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:34:17,443 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:34:17,444 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:34:17,445 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:34:17,446 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:34:17,446 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:34:17,447 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:34:17,447 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:34:17,447 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:34:17,448 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:34:17,449 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:34:17,450 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:34:17,464 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:34:17,464 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:34:17,465 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:34:17,466 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:34:17,466 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:34:17,466 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:34:17,466 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:34:17,466 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:34:17,467 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:34:17,467 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:34:17,467 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:34:17,467 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:34:17,467 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:34:17,468 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:34:17,468 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:34:17,468 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:34:17,468 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:34:17,468 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:34:17,469 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:34:17,469 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:34:17,469 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:34:17,469 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:34:17,469 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:34:17,779 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:34:17,802 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:34:17,805 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:34:17,807 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:34:17,808 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:34:17,809 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-07-07 12:34:17,874 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2173e84fa/1893a527325b4997a5aaa2a0ceafc7b2/FLAGa4a7107fc [2020-07-07 12:34:18,428 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:34:18,429 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product47.cil.c [2020-07-07 12:34:18,443 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2173e84fa/1893a527325b4997a5aaa2a0ceafc7b2/FLAGa4a7107fc [2020-07-07 12:34:18,687 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/2173e84fa/1893a527325b4997a5aaa2a0ceafc7b2 [2020-07-07 12:34:18,696 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:34:18,698 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:34:18,699 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:34:18,699 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:34:18,702 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:34:18,703 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:34:18" (1/1) ... [2020-07-07 12:34:18,706 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@46408e3f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:18, skipping insertion in model container [2020-07-07 12:34:18,707 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:34:18" (1/1) ... [2020-07-07 12:34:18,714 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:34:18,779 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:34:19,215 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:34:19,237 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:34:19,373 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:34:19,409 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:34:19,409 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:19 WrapperNode [2020-07-07 12:34:19,410 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:34:19,410 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:34:19,410 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:34:19,411 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:34:19,422 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:19" (1/1) ... [2020-07-07 12:34:19,422 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:19" (1/1) ... [2020-07-07 12:34:19,442 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:19" (1/1) ... [2020-07-07 12:34:19,443 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:19" (1/1) ... [2020-07-07 12:34:19,471 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:19" (1/1) ... [2020-07-07 12:34:19,482 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:19" (1/1) ... [2020-07-07 12:34:19,488 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:19" (1/1) ... [2020-07-07 12:34:19,496 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:34:19,497 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:34:19,497 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:34:19,497 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:34:19,498 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:19" (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 [2020-07-07 12:34:19,574 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:34:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:34:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:34:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:34:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:34:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:34:19,575 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:34:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:34:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:34:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:34:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:34:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:34:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:34:19,576 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:34:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:34:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:34:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:34:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:34:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:34:19,577 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:34:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:34:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:34:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:34:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:34:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-07-07 12:34:19,578 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:34:19,579 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:34:19,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:34:19,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:34:19,579 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:34:19,579 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-07-07 12:34:19,579 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:34:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:34:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:34:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:34:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:34:19,580 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:34:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:34:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-07-07 12:34:19,581 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:34:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:34:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:34:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:34:19,581 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:34:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:34:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:34:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:34:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:34:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:34:19,582 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:34:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:34:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:34:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:34:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:34:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:34:19,583 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:34:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:34:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:34:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:34:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:34:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:34:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:34:19,584 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:34:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:34:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:34:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:34:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:34:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:34:19,585 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:34:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:34:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:34:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:34:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:34:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:34:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:34:19,586 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:34:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:34:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:34:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:34:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-07-07 12:34:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:34:19,587 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:34:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:34:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:34:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:34:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:34:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-07-07 12:34:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-07-07 12:34:19,588 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:34:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-07-07 12:34:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:34:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:34:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:34:19,589 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:34:20,788 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:34:20,788 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:34:20,795 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:34:20 BoogieIcfgContainer [2020-07-07 12:34:20,795 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:34:20,797 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:34:20,797 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:34:20,800 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:34:20,800 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:34:18" (1/3) ... [2020-07-07 12:34:20,801 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6824b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:34:20, skipping insertion in model container [2020-07-07 12:34:20,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:34:19" (2/3) ... [2020-07-07 12:34:20,802 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3d6824b5 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:34:20, skipping insertion in model container [2020-07-07 12:34:20,802 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:34:20" (3/3) ... [2020-07-07 12:34:20,804 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product47.cil.c [2020-07-07 12:34:20,814 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:34:20,822 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:34:20,834 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:34:20,855 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:34:20,855 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:34:20,855 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:34:20,855 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:34:20,856 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:34:20,856 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:34:20,856 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:34:20,856 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:34:20,877 INFO L276 IsEmpty]: Start isEmpty. Operand 327 states. [2020-07-07 12:34:20,901 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:34:20,902 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:20,903 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:20,903 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:20,909 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:20,910 INFO L82 PathProgramCache]: Analyzing trace with hash -1612013966, now seen corresponding path program 1 times [2020-07-07 12:34:20,918 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:20,918 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1842314999] [2020-07-07 12:34:20,919 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:21,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:21,733 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:21,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:21,902 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:21,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:21,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:21,908 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:21,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:21,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:21,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:21,956 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:21,957 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:21,959 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1842314999] [2020-07-07 12:34:21,962 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:21,962 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:34:21,963 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [728019023] [2020-07-07 12:34:21,969 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:34:21,969 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:21,984 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:34:21,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:34:21,987 INFO L87 Difference]: Start difference. First operand 327 states. Second operand 3 states. [2020-07-07 12:34:23,425 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:23,426 INFO L93 Difference]: Finished difference Result 523 states and 625 transitions. [2020-07-07 12:34:23,426 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:34:23,428 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:34:23,429 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:23,447 INFO L225 Difference]: With dead ends: 523 [2020-07-07 12:34:23,447 INFO L226 Difference]: Without dead ends: 321 [2020-07-07 12:34:23,453 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:34:23,474 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 321 states. [2020-07-07 12:34:23,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 321 to 276. [2020-07-07 12:34:23,587 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-07-07 12:34:23,590 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 303 transitions. [2020-07-07 12:34:23,592 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 303 transitions. Word has length 153 [2020-07-07 12:34:23,593 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:23,594 INFO L479 AbstractCegarLoop]: Abstraction has 276 states and 303 transitions. [2020-07-07 12:34:23,594 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:34:23,594 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 303 transitions. [2020-07-07 12:34:23,599 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:34:23,599 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:23,599 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:23,600 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:34:23,600 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:23,600 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:23,601 INFO L82 PathProgramCache]: Analyzing trace with hash -178714613, now seen corresponding path program 1 times [2020-07-07 12:34:23,601 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:23,601 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1646064987] [2020-07-07 12:34:23,602 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:23,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:23,987 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:23,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:24,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:24,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:24,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:24,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:24,057 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:24,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:24,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:24,094 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:24,094 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:24,095 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1646064987] [2020-07-07 12:34:24,095 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:24,095 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:34:24,096 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1739669716] [2020-07-07 12:34:24,099 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:34:24,099 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:24,099 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:34:24,099 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:34:24,100 INFO L87 Difference]: Start difference. First operand 276 states and 303 transitions. Second operand 4 states. [2020-07-07 12:34:24,668 WARN L193 SmtUtils]: Spent 211.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:34:25,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:25,755 INFO L93 Difference]: Finished difference Result 434 states and 492 transitions. [2020-07-07 12:34:25,756 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:34:25,756 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:34:25,757 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:25,761 INFO L225 Difference]: With dead ends: 434 [2020-07-07 12:34:25,761 INFO L226 Difference]: Without dead ends: 304 [2020-07-07 12:34:25,764 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:34:25,765 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 304 states. [2020-07-07 12:34:25,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 304 to 266. [2020-07-07 12:34:25,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 266 states. [2020-07-07 12:34:25,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 266 states to 266 states and 290 transitions. [2020-07-07 12:34:25,852 INFO L78 Accepts]: Start accepts. Automaton has 266 states and 290 transitions. Word has length 154 [2020-07-07 12:34:25,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:25,853 INFO L479 AbstractCegarLoop]: Abstraction has 266 states and 290 transitions. [2020-07-07 12:34:25,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:34:25,853 INFO L276 IsEmpty]: Start isEmpty. Operand 266 states and 290 transitions. [2020-07-07 12:34:25,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:34:25,856 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:25,856 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:25,857 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:34:25,857 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:25,857 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:25,857 INFO L82 PathProgramCache]: Analyzing trace with hash -1820602845, now seen corresponding path program 1 times [2020-07-07 12:34:25,858 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:25,858 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [642599316] [2020-07-07 12:34:25,858 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:25,897 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,225 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:26,253 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,302 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,304 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:26,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:26,400 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:26,400 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [642599316] [2020-07-07 12:34:26,400 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:26,400 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:34:26,401 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [384349645] [2020-07-07 12:34:26,401 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:34:26,401 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:26,402 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:34:26,402 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:34:26,402 INFO L87 Difference]: Start difference. First operand 266 states and 290 transitions. Second operand 9 states. [2020-07-07 12:34:26,886 WARN L193 SmtUtils]: Spent 203.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:27,194 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:34:27,444 WARN L193 SmtUtils]: Spent 226.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:34:27,712 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:27,989 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:28,225 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:29,156 WARN L193 SmtUtils]: Spent 219.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:34:31,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:31,518 INFO L93 Difference]: Finished difference Result 724 states and 837 transitions. [2020-07-07 12:34:31,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:34:31,518 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:34:31,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:31,522 INFO L225 Difference]: With dead ends: 724 [2020-07-07 12:34:31,522 INFO L226 Difference]: Without dead ends: 568 [2020-07-07 12:34:31,524 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-07 12:34:31,525 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 568 states. [2020-07-07 12:34:31,695 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 568 to 497. [2020-07-07 12:34:31,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 497 states. [2020-07-07 12:34:31,699 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 497 states to 497 states and 560 transitions. [2020-07-07 12:34:31,700 INFO L78 Accepts]: Start accepts. Automaton has 497 states and 560 transitions. Word has length 163 [2020-07-07 12:34:31,700 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:31,701 INFO L479 AbstractCegarLoop]: Abstraction has 497 states and 560 transitions. [2020-07-07 12:34:31,701 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:34:31,701 INFO L276 IsEmpty]: Start isEmpty. Operand 497 states and 560 transitions. [2020-07-07 12:34:31,706 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 173 [2020-07-07 12:34:31,706 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:31,707 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:31,707 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:34:31,707 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:31,707 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:31,708 INFO L82 PathProgramCache]: Analyzing trace with hash -1334837787, now seen corresponding path program 1 times [2020-07-07 12:34:31,708 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:31,708 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [791172335] [2020-07-07 12:34:31,709 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:31,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:32,043 WARN L193 SmtUtils]: Spent 207.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:32,092 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:32,094 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:32,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:32,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:32,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:32,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:32,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:32,181 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:32,181 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:32,181 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [791172335] [2020-07-07 12:34:32,182 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:32,182 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:34:32,182 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [11810426] [2020-07-07 12:34:32,183 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:34:32,183 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:32,183 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:34:32,184 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:34:32,184 INFO L87 Difference]: Start difference. First operand 497 states and 560 transitions. Second operand 9 states. [2020-07-07 12:34:32,677 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:34,674 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:34,953 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:35,234 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:35,531 WARN L193 SmtUtils]: Spent 217.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:35,770 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:34:36,012 WARN L193 SmtUtils]: Spent 199.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:36,252 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:34:37,282 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:37,284 INFO L93 Difference]: Finished difference Result 1358 states and 1641 transitions. [2020-07-07 12:34:37,284 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:34:37,285 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 172 [2020-07-07 12:34:37,286 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:37,297 INFO L225 Difference]: With dead ends: 1358 [2020-07-07 12:34:37,297 INFO L226 Difference]: Without dead ends: 971 [2020-07-07 12:34:37,300 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 2.0s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:34:37,302 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 971 states. [2020-07-07 12:34:37,567 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 971 to 867. [2020-07-07 12:34:37,567 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 867 states. [2020-07-07 12:34:37,573 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 867 states to 867 states and 1001 transitions. [2020-07-07 12:34:37,574 INFO L78 Accepts]: Start accepts. Automaton has 867 states and 1001 transitions. Word has length 172 [2020-07-07 12:34:37,574 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:37,574 INFO L479 AbstractCegarLoop]: Abstraction has 867 states and 1001 transitions. [2020-07-07 12:34:37,575 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:34:37,575 INFO L276 IsEmpty]: Start isEmpty. Operand 867 states and 1001 transitions. [2020-07-07 12:34:37,579 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:34:37,580 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:37,580 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:37,580 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:34:37,581 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:37,581 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:37,581 INFO L82 PathProgramCache]: Analyzing trace with hash -1117798554, now seen corresponding path program 1 times [2020-07-07 12:34:37,581 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:37,582 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [557452095] [2020-07-07 12:34:37,582 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:37,618 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:37,861 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:34:37,895 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:37,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:38,019 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:38,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:38,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:38,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:34:38,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:34:38,089 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:38,090 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [557452095] [2020-07-07 12:34:38,090 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:34:38,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:34:38,091 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1567438303] [2020-07-07 12:34:38,092 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:34:38,092 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:34:38,092 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:34:38,093 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:34:38,094 INFO L87 Difference]: Start difference. First operand 867 states and 1001 transitions. Second operand 6 states. [2020-07-07 12:34:38,764 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:34:40,984 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:34:40,984 INFO L93 Difference]: Finished difference Result 2006 states and 2416 transitions. [2020-07-07 12:34:40,985 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-07-07 12:34:40,985 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-07-07 12:34:40,985 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:34:40,992 INFO L225 Difference]: With dead ends: 2006 [2020-07-07 12:34:40,993 INFO L226 Difference]: Without dead ends: 1249 [2020-07-07 12:34:40,996 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-07-07 12:34:40,998 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1249 states. [2020-07-07 12:34:41,534 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1249 to 1152. [2020-07-07 12:34:41,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1152 states. [2020-07-07 12:34:41,540 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1152 states to 1152 states and 1315 transitions. [2020-07-07 12:34:41,541 INFO L78 Accepts]: Start accepts. Automaton has 1152 states and 1315 transitions. Word has length 177 [2020-07-07 12:34:41,541 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:34:41,541 INFO L479 AbstractCegarLoop]: Abstraction has 1152 states and 1315 transitions. [2020-07-07 12:34:41,542 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:34:41,542 INFO L276 IsEmpty]: Start isEmpty. Operand 1152 states and 1315 transitions. [2020-07-07 12:34:41,545 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-07-07 12:34:41,545 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:34:41,545 INFO L422 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:34:41,546 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:34:41,546 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:34:41,546 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:34:41,546 INFO L82 PathProgramCache]: Analyzing trace with hash 654753658, now seen corresponding path program 1 times [2020-07-07 12:34:41,547 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:34:41,547 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1852477366] [2020-07-07 12:34:41,547 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:34:41,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:41,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:34:41,845 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:34:41,845 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:34:41,845 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:34:41,846 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:34:41,871 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:34:41 BoogieIcfgContainer [2020-07-07 12:34:41,871 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:34:41,874 INFO L168 Benchmark]: Toolchain (without parser) took 23175.67 ms. Allocated memory was 144.2 MB in the beginning and 685.8 MB in the end (delta: 541.6 MB). Free memory was 101.2 MB in the beginning and 515.9 MB in the end (delta: -414.7 MB). Peak memory consumption was 126.9 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:41,875 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory is still 120.4 MB. There was no memory consumed. Max. memory is 7.1 GB. [2020-07-07 12:34:41,883 INFO L168 Benchmark]: CACSL2BoogieTranslator took 711.20 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 100.8 MB in the beginning and 169.3 MB in the end (delta: -68.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:41,883 INFO L168 Benchmark]: Boogie Preprocessor took 86.43 ms. Allocated memory is still 201.9 MB. Free memory was 169.3 MB in the beginning and 165.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:41,884 INFO L168 Benchmark]: RCFGBuilder took 1298.47 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 165.2 MB in the beginning and 172.1 MB in the end (delta: -6.9 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:41,885 INFO L168 Benchmark]: TraceAbstraction took 21074.82 ms. Allocated memory was 232.8 MB in the beginning and 685.8 MB in the end (delta: 453.0 MB). Free memory was 172.1 MB in the beginning and 515.9 MB in the end (delta: -343.8 MB). Peak memory consumption was 109.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:34:41,894 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 144.2 MB. Free memory is still 120.4 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 711.20 ms. Allocated memory was 144.2 MB in the beginning and 201.9 MB in the end (delta: 57.7 MB). Free memory was 100.8 MB in the beginning and 169.3 MB in the end (delta: -68.6 MB). Peak memory consumption was 23.2 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 86.43 ms. Allocated memory is still 201.9 MB. Free memory was 169.3 MB in the beginning and 165.2 MB in the end (delta: 4.1 MB). Peak memory consumption was 4.1 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1298.47 ms. Allocated memory was 201.9 MB in the beginning and 232.8 MB in the end (delta: 30.9 MB). Free memory was 165.2 MB in the beginning and 172.1 MB in the end (delta: -6.9 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 21074.82 ms. Allocated memory was 232.8 MB in the beginning and 685.8 MB in the end (delta: 453.0 MB). Free memory was 172.1 MB in the beginning and 515.9 MB in the end (delta: -343.8 MB). Peak memory consumption was 109.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L49] int cleanupTimeShifts = 4; [L357] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L629] int pumpRunning = 0; [L630] int systemActive = 1; [L841] int waterLevel = 1; [L842] int methaneLevelCritical = 0; [L130] int retValue_acc ; [L131] int tmp ; [L135] FCALL select_helpers() [L136] FCALL select_features() [L137] CALL, EXPR valid_product() [L179] int retValue_acc ; [L182] retValue_acc = 1 [L183] return (retValue_acc); [L137] RET, EXPR valid_product() [L137] tmp = valid_product() [L139] COND TRUE \read(tmp) [L141] FCALL setup() [L142] CALL runTest() [L121] CALL test() [L556] int splverifierCounter ; [L557] int tmp ; [L558] int tmp___0 ; [L559] int tmp___1 ; [L560] int tmp___2 ; [L563] splverifierCounter = 0 [L565] COND TRUE 1 [L567] COND TRUE splverifierCounter < 4 [L573] tmp = __VERIFIER_nondet_int() [L575] COND TRUE \read(tmp) [L577] CALL waterRise() [L859] COND TRUE waterLevel < 2 [L860] waterLevel = waterLevel + 1 [L577] RET waterRise() [L583] tmp___0 = __VERIFIER_nondet_int() [L585] COND FALSE !(\read(tmp___0)) [L593] tmp___2 = __VERIFIER_nondet_int() [L595] COND FALSE !(\read(tmp___2)) [L599] tmp___1 = __VERIFIER_nondet_int() [L601] COND TRUE \read(tmp___1) [L603] CALL stopSystem() [L828] COND FALSE !(\read(pumpRunning)) [L835] systemActive = 0 [L603] RET stopSystem() [L610] CALL timeShift() [L637] COND FALSE !(\read(pumpRunning)) [L644] COND FALSE !(\read(systemActive)) [L652] CALL __utac_acc__Specification3_spec__1() [L936] int tmp ; [L937] int tmp___0 ; [L938] int tmp___1 ; [L942] CALL, EXPR isMethaneLevelCritical() [L880] int retValue_acc ; [L883] retValue_acc = methaneLevelCritical [L884] return (retValue_acc); [L942] RET, EXPR isMethaneLevelCritical() [L942] tmp = isMethaneLevelCritical() [L944] COND FALSE !(\read(tmp)) [L948] CALL, EXPR getWaterLevel() [L912] int retValue_acc ; [L915] retValue_acc = waterLevel [L916] return (retValue_acc); [L948] RET, EXPR getWaterLevel() [L948] tmp___0 = getWaterLevel() [L950] COND TRUE tmp___0 == 2 [L952] CALL, EXPR isPumpRunning() [L761] int retValue_acc ; [L764] retValue_acc = pumpRunning [L765] return (retValue_acc); [L952] RET, EXPR isPumpRunning() [L952] tmp___1 = isPumpRunning() [L954] COND FALSE !(\read(tmp___1)) [L958] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 639 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 20.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 16.2s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1308 SDtfs, 2065 SDslu, 1449 SDs, 0 SdLazy, 3887 SolverSat, 715 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.2s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 58 ImplicationChecksByTransitivity, 5.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1152occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 355 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...