/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 --traceabstraction.compute.interpolants.along.a.counterexample Craig_NestedInterpolation --traceabstraction.use.separate.solver.for.trace.checks true -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 20:27:51,362 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 20:27:51,366 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 20:27:51,408 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 20:27:51,409 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 20:27:51,410 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 20:27:51,411 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 20:27:51,413 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 20:27:51,415 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 20:27:51,416 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 20:27:51,417 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 20:27:51,418 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 20:27:51,418 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 20:27:51,419 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 20:27:51,421 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 20:27:51,422 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 20:27:51,423 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 20:27:51,424 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 20:27:51,426 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 20:27:51,427 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 20:27:51,429 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 20:27:51,430 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 20:27:51,431 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 20:27:51,432 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 20:27:51,435 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 20:27:51,435 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 20:27:51,436 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 20:27:51,437 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 20:27:51,437 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 20:27:51,438 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 20:27:51,438 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 20:27:51,439 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 20:27:51,440 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 20:27:51,441 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 20:27:51,442 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 20:27:51,442 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 20:27:51,443 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 20:27:51,443 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 20:27:51,443 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 20:27:51,444 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 20:27:51,445 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 20:27:51,446 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-09-04 20:27:51,457 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 20:27:51,458 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 20:27:51,459 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 20:27:51,459 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 20:27:51,459 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 20:27:51,459 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 20:27:51,460 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 20:27:51,460 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 20:27:51,460 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 20:27:51,460 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 20:27:51,460 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 20:27:51,461 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 20:27:51,461 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 20:27:51,461 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 20:27:51,461 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 20:27:51,461 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 20:27:51,462 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 20:27:51,462 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 20:27:51,462 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 20:27:51,462 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 20:27:51,462 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 20:27:51,463 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 20:27:51,463 INFO L138 SettingsManager]: * Use separate solver for trace checks=false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Compute Interpolants along a Counterexample -> Craig_NestedInterpolation Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: Use separate solver for trace checks -> true [2020-09-04 20:27:51,900 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 20:27:51,922 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 20:27:51,928 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 20:27:51,930 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 20:27:51,930 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 20:27:51,931 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-09-04 20:27:52,018 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/915eb2ddc/74c6c42e648c494791aea7d2ae14dbd8/FLAGc1852c9f5 [2020-09-04 20:27:52,604 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 20:27:52,604 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec1_product41.cil.c [2020-09-04 20:27:52,618 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/915eb2ddc/74c6c42e648c494791aea7d2ae14dbd8/FLAGc1852c9f5 [2020-09-04 20:27:52,897 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/915eb2ddc/74c6c42e648c494791aea7d2ae14dbd8 [2020-09-04 20:27:52,911 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 20:27:52,914 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 20:27:52,916 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 20:27:52,916 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 20:27:52,920 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 20:27:52,921 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:27:52" (1/1) ... [2020-09-04 20:27:52,926 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@186d1561 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:52, skipping insertion in model container [2020-09-04 20:27:52,926 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 08:27:52" (1/1) ... [2020-09-04 20:27:52,935 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 20:27:53,011 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 20:27:53,383 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:27:53,404 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 20:27:53,590 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 20:27:53,633 INFO L208 MainTranslator]: Completed translation [2020-09-04 20:27:53,633 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:53 WrapperNode [2020-09-04 20:27:53,633 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 20:27:53,634 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 20:27:53,634 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 20:27:53,635 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 20:27:53,650 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:53" (1/1) ... [2020-09-04 20:27:53,651 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:53" (1/1) ... [2020-09-04 20:27:53,671 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:53" (1/1) ... [2020-09-04 20:27:53,671 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:53" (1/1) ... [2020-09-04 20:27:53,703 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:53" (1/1) ... [2020-09-04 20:27:53,714 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:53" (1/1) ... [2020-09-04 20:27:53,719 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:53" (1/1) ... [2020-09-04 20:27:53,733 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 20:27:53,734 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 20:27:53,734 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 20:27:53,734 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 20:27:53,735 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:53" (1/1) ... No working directory specified, using /storage/repos/ultimate-2/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 [2020-09-04 20:27:53,813 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 20:27:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 20:27:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 20:27:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 20:27:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 20:27:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 20:27:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 20:27:53,814 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 20:27:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 20:27:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 20:27:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 20:27:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 20:27:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 20:27:53,815 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 20:27:53,816 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 20:27:53,816 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 20:27:53,816 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 20:27:53,816 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 20:27:53,816 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 20:27:53,817 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 20:27:53,817 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-04 20:27:53,817 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 20:27:53,817 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 20:27:53,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 20:27:53,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 20:27:53,818 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 20:27:53,818 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 20:27:53,818 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 20:27:53,818 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 20:27:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 20:27:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 20:27:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 20:27:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 20:27:53,819 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 20:27:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 20:27:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 20:27:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 20:27:53,820 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification1_spec__1 [2020-09-04 20:27:53,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 20:27:53,820 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 20:27:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 20:27:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 20:27:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 20:27:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 20:27:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 20:27:53,821 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 20:27:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 20:27:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 20:27:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 20:27:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 20:27:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 20:27:53,822 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 20:27:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 20:27:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 20:27:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 20:27:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 20:27:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 20:27:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 20:27:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 20:27:53,823 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 20:27:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 20:27:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 20:27:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 20:27:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 20:27:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 20:27:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 20:27:53,824 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 20:27:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 20:27:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 20:27:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 20:27:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 20:27:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 20:27:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification1_spec__1 [2020-09-04 20:27:53,825 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 20:27:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 20:27:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 20:27:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-04 20:27:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 20:27:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 20:27:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 20:27:53,826 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 20:27:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 20:27:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 20:27:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 20:27:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 20:27:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 20:27:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 20:27:53,827 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 20:27:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 20:27:53,828 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 20:27:54,976 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 20:27:54,976 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 20:27:54,990 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:27:54 BoogieIcfgContainer [2020-09-04 20:27:54,990 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 20:27:54,992 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 20:27:54,992 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 20:27:54,996 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 20:27:54,996 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 08:27:52" (1/3) ... [2020-09-04 20:27:54,997 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248d8a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:27:54, skipping insertion in model container [2020-09-04 20:27:54,997 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 08:27:53" (2/3) ... [2020-09-04 20:27:54,998 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@248d8a52 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 08:27:54, skipping insertion in model container [2020-09-04 20:27:54,998 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 08:27:54" (3/3) ... [2020-09-04 20:27:55,000 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec1_product41.cil.c [2020-09-04 20:27:55,012 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:Craig_NestedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 20:27:55,023 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 20:27:55,046 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 20:27:55,076 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 20:27:55,077 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 20:27:55,077 INFO L377 AbstractCegarLoop]: Compute interpolants for Craig_NestedInterpolation [2020-09-04 20:27:55,077 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 20:27:55,077 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 20:27:55,077 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 20:27:55,078 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 20:27:55,078 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 20:27:55,101 INFO L276 IsEmpty]: Start isEmpty. Operand 295 states. [2020-09-04 20:27:55,125 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-04 20:27:55,125 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:55,127 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] [2020-09-04 20:27:55,128 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:55,137 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:55,137 INFO L82 PathProgramCache]: Analyzing trace with hash -304356178, now seen corresponding path program 1 times [2020-09-04 20:27:55,150 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:55,150 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1866334269] [2020-09-04 20:27:55,151 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:55,466 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:55,922 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:55,925 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:55,944 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:56,047 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:56,050 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:56,055 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:56,061 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:56,062 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:56,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:56,069 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:56,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:56,072 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:27:56,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:56,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-04 20:27:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:56,113 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:27:56,114 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1866334269] [2020-09-04 20:27:56,116 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:56,117 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 20:27:56,122 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1188162601] [2020-09-04 20:27:56,131 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 20:27:56,131 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:56,149 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 20:27:56,151 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:27:56,154 INFO L87 Difference]: Start difference. First operand 295 states. Second operand 3 states. [2020-09-04 20:27:57,520 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:57,521 INFO L93 Difference]: Finished difference Result 455 states and 541 transitions. [2020-09-04 20:27:57,521 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 20:27:57,523 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-04 20:27:57,524 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:57,543 INFO L225 Difference]: With dead ends: 455 [2020-09-04 20:27:57,543 INFO L226 Difference]: Without dead ends: 285 [2020-09-04 20:27:57,549 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 20:27:57,571 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 285 states. [2020-09-04 20:27:57,680 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 285 to 244. [2020-09-04 20:27:57,682 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 244 states. [2020-09-04 20:27:57,685 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 244 states to 244 states and 264 transitions. [2020-09-04 20:27:57,687 INFO L78 Accepts]: Start accepts. Automaton has 244 states and 264 transitions. Word has length 142 [2020-09-04 20:27:57,688 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:57,688 INFO L479 AbstractCegarLoop]: Abstraction has 244 states and 264 transitions. [2020-09-04 20:27:57,688 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 20:27:57,689 INFO L276 IsEmpty]: Start isEmpty. Operand 244 states and 264 transitions. [2020-09-04 20:27:57,693 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-04 20:27:57,693 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:57,694 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] [2020-09-04 20:27:57,694 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 20:27:57,694 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:57,695 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:57,695 INFO L82 PathProgramCache]: Analyzing trace with hash -971808182, now seen corresponding path program 1 times [2020-09-04 20:27:57,695 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:57,695 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1178254435] [2020-09-04 20:27:57,696 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:57,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:58,105 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:27:58,107 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:27:58,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:58,156 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:27:58,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:58,159 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:27:58,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:58,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:27:58,161 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:58,163 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:27:58,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:58,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 20:27:58,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:58,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 20:27:58,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:27:58,216 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:27:58,216 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1178254435] [2020-09-04 20:27:58,216 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:27:58,217 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 20:27:58,217 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1905255425] [2020-09-04 20:27:58,219 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 20:27:58,219 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:27:58,220 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 20:27:58,220 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 20:27:58,220 INFO L87 Difference]: Start difference. First operand 244 states and 264 transitions. Second operand 4 states. [2020-09-04 20:27:58,840 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:27:59,737 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:27:59,737 INFO L93 Difference]: Finished difference Result 372 states and 416 transitions. [2020-09-04 20:27:59,738 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 20:27:59,738 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-04 20:27:59,739 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:27:59,743 INFO L225 Difference]: With dead ends: 372 [2020-09-04 20:27:59,743 INFO L226 Difference]: Without dead ends: 268 [2020-09-04 20:27:59,745 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 20:27:59,746 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-09-04 20:27:59,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 234. [2020-09-04 20:27:59,825 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-04 20:27:59,827 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 251 transitions. [2020-09-04 20:27:59,827 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 251 transitions. Word has length 143 [2020-09-04 20:27:59,828 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:27:59,828 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 251 transitions. [2020-09-04 20:27:59,828 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 20:27:59,828 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 251 transitions. [2020-09-04 20:27:59,831 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 153 [2020-09-04 20:27:59,831 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:27:59,831 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] [2020-09-04 20:27:59,831 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 20:27:59,832 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:27:59,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:27:59,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1690320895, now seen corresponding path program 1 times [2020-09-04 20:27:59,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:27:59,833 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1761431122] [2020-09-04 20:27:59,833 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:27:59,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:00,304 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:28:00,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:28:00,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:00,387 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:28:00,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:00,389 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:28:00,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:00,391 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:28:00,393 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:00,449 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:28:00,450 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:00,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-04 20:28:00,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:00,453 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-09-04 20:28:00,454 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:00,497 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:28:00,497 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1761431122] [2020-09-04 20:28:00,497 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:28:00,498 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:28:00,498 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1134672411] [2020-09-04 20:28:00,499 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:28:00,499 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:28:00,499 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:28:00,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:28:00,499 INFO L87 Difference]: Start difference. First operand 234 states and 251 transitions. Second operand 9 states. [2020-09-04 20:28:01,072 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:01,452 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:01,764 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:28:02,081 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:02,408 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:28:02,699 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:04,166 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:28:04,166 INFO L93 Difference]: Finished difference Result 392 states and 441 transitions. [2020-09-04 20:28:04,167 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-09-04 20:28:04,167 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 152 [2020-09-04 20:28:04,168 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:28:04,171 INFO L225 Difference]: With dead ends: 392 [2020-09-04 20:28:04,172 INFO L226 Difference]: Without dead ends: 268 [2020-09-04 20:28:04,173 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 29 GetRequests, 15 SyntacticMatches, 1 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=61, Invalid=149, Unknown=0, NotChecked=0, Total=210 [2020-09-04 20:28:04,174 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 268 states. [2020-09-04 20:28:04,233 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 268 to 234. [2020-09-04 20:28:04,233 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-09-04 20:28:04,235 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 250 transitions. [2020-09-04 20:28:04,235 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 250 transitions. Word has length 152 [2020-09-04 20:28:04,235 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:28:04,236 INFO L479 AbstractCegarLoop]: Abstraction has 234 states and 250 transitions. [2020-09-04 20:28:04,236 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:28:04,236 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 250 transitions. [2020-09-04 20:28:04,238 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-09-04 20:28:04,238 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:28:04,239 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] [2020-09-04 20:28:04,239 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 20:28:04,239 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:28:04,239 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:28:04,240 INFO L82 PathProgramCache]: Analyzing trace with hash 959835140, now seen corresponding path program 1 times [2020-09-04 20:28:04,240 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:28:04,240 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1009012695] [2020-09-04 20:28:04,240 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:28:04,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:04,570 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:28:04,571 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:28:04,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:04,655 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:28:04,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:04,658 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:28:04,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:04,660 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:28:04,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:04,663 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:28:04,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:04,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-04 20:28:04,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:04,689 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:04,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:04,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 20:28:04,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:04,694 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 148 [2020-09-04 20:28:04,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:04,761 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:28:04,762 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1009012695] [2020-09-04 20:28:04,762 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:28:04,763 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 20:28:04,763 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1522110222] [2020-09-04 20:28:04,764 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 20:28:04,764 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:28:04,764 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 20:28:04,765 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-09-04 20:28:04,765 INFO L87 Difference]: Start difference. First operand 234 states and 250 transitions. Second operand 6 states. [2020-09-04 20:28:05,438 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:06,901 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:07,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:28:07,587 INFO L93 Difference]: Finished difference Result 514 states and 584 transitions. [2020-09-04 20:28:07,587 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-09-04 20:28:07,587 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 160 [2020-09-04 20:28:07,588 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:28:07,594 INFO L225 Difference]: With dead ends: 514 [2020-09-04 20:28:07,594 INFO L226 Difference]: Without dead ends: 390 [2020-09-04 20:28:07,596 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 32 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:28:07,597 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 390 states. [2020-09-04 20:28:07,737 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 390 to 331. [2020-09-04 20:28:07,737 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 331 states. [2020-09-04 20:28:07,739 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 331 states to 331 states and 357 transitions. [2020-09-04 20:28:07,740 INFO L78 Accepts]: Start accepts. Automaton has 331 states and 357 transitions. Word has length 160 [2020-09-04 20:28:07,742 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:28:07,742 INFO L479 AbstractCegarLoop]: Abstraction has 331 states and 357 transitions. [2020-09-04 20:28:07,742 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 20:28:07,742 INFO L276 IsEmpty]: Start isEmpty. Operand 331 states and 357 transitions. [2020-09-04 20:28:07,744 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-04 20:28:07,744 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:28:07,745 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, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:28:07,745 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 20:28:07,745 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:28:07,745 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:28:07,745 INFO L82 PathProgramCache]: Analyzing trace with hash 1575421587, now seen corresponding path program 1 times [2020-09-04 20:28:07,746 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:28:07,746 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [455145437] [2020-09-04 20:28:07,746 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:28:07,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:08,112 WARN L193 SmtUtils]: Spent 224.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:28:08,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:28:08,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:08,171 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:28:08,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:08,173 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:28:08,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:08,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:28:08,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:08,215 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:28:08,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:08,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-04 20:28:08,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:08,240 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:08,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:08,283 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:28:08,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:08,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:28:08,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:08,340 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-04 20:28:08,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:08,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-04 20:28:08,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:08,494 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:28:08,494 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [455145437] [2020-09-04 20:28:08,495 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:28:08,495 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2020-09-04 20:28:08,496 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1952834087] [2020-09-04 20:28:08,497 INFO L459 AbstractCegarLoop]: Interpolant automaton has 12 states [2020-09-04 20:28:08,498 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:28:08,498 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2020-09-04 20:28:08,499 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=22, Invalid=110, Unknown=0, NotChecked=0, Total=132 [2020-09-04 20:28:08,500 INFO L87 Difference]: Start difference. First operand 331 states and 357 transitions. Second operand 12 states. [2020-09-04 20:28:09,285 WARN L193 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:09,650 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:28:09,903 WARN L193 SmtUtils]: Spent 197.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:10,175 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:10,467 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:11,333 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:11,642 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:11,964 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:12,278 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:12,580 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:13,730 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:28:13,730 INFO L93 Difference]: Finished difference Result 616 states and 700 transitions. [2020-09-04 20:28:13,732 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-09-04 20:28:13,732 INFO L78 Accepts]: Start accepts. Automaton has 12 states. Word has length 184 [2020-09-04 20:28:13,732 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:28:13,735 INFO L225 Difference]: With dead ends: 616 [2020-09-04 20:28:13,735 INFO L226 Difference]: Without dead ends: 395 [2020-09-04 20:28:13,741 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=82, Invalid=380, Unknown=0, NotChecked=0, Total=462 [2020-09-04 20:28:13,742 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 395 states. [2020-09-04 20:28:13,847 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 395 to 337. [2020-09-04 20:28:13,848 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 337 states. [2020-09-04 20:28:13,849 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 337 states to 337 states and 363 transitions. [2020-09-04 20:28:13,850 INFO L78 Accepts]: Start accepts. Automaton has 337 states and 363 transitions. Word has length 184 [2020-09-04 20:28:13,850 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:28:13,850 INFO L479 AbstractCegarLoop]: Abstraction has 337 states and 363 transitions. [2020-09-04 20:28:13,850 INFO L480 AbstractCegarLoop]: Interpolant automaton has 12 states. [2020-09-04 20:28:13,851 INFO L276 IsEmpty]: Start isEmpty. Operand 337 states and 363 transitions. [2020-09-04 20:28:13,853 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 185 [2020-09-04 20:28:13,853 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:28:13,853 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, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:28:13,853 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 20:28:13,853 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:28:13,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:28:13,854 INFO L82 PathProgramCache]: Analyzing trace with hash -41267661, now seen corresponding path program 1 times [2020-09-04 20:28:13,854 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:28:13,854 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1559072154] [2020-09-04 20:28:13,854 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:28:13,899 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:14,230 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:28:14,231 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:28:14,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:14,297 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:28:14,297 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:14,299 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:28:14,299 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:14,300 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:28:14,301 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:14,303 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:28:14,303 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:14,321 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-09-04 20:28:14,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:14,327 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:14,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:14,330 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:28:14,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:14,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:28:14,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:14,334 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-09-04 20:28:14,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:14,354 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 172 [2020-09-04 20:28:14,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:14,386 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:28:14,387 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1559072154] [2020-09-04 20:28:14,387 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:28:14,387 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-09-04 20:28:14,388 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [766244000] [2020-09-04 20:28:14,388 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-09-04 20:28:14,388 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:28:14,389 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-09-04 20:28:14,389 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-09-04 20:28:14,389 INFO L87 Difference]: Start difference. First operand 337 states and 363 transitions. Second operand 9 states. [2020-09-04 20:28:14,942 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:16,305 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:16,636 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:28:17,016 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:17,331 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:17,964 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:18,274 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:28:18,572 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:18,938 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:19,802 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:28:19,802 INFO L93 Difference]: Finished difference Result 845 states and 973 transitions. [2020-09-04 20:28:19,803 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 20:28:19,803 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 184 [2020-09-04 20:28:19,804 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:28:19,809 INFO L225 Difference]: With dead ends: 845 [2020-09-04 20:28:19,809 INFO L226 Difference]: Without dead ends: 618 [2020-09-04 20:28:19,810 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 34 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=93, Invalid=249, Unknown=0, NotChecked=0, Total=342 [2020-09-04 20:28:19,811 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 618 states. [2020-09-04 20:28:19,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 618 to 527. [2020-09-04 20:28:19,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-09-04 20:28:19,952 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 574 transitions. [2020-09-04 20:28:19,953 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 574 transitions. Word has length 184 [2020-09-04 20:28:19,953 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:28:19,954 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 574 transitions. [2020-09-04 20:28:19,954 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-09-04 20:28:19,954 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 574 transitions. [2020-09-04 20:28:19,956 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 190 [2020-09-04 20:28:19,956 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:28:19,957 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:28:19,957 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 20:28:19,957 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:28:19,957 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:28:19,957 INFO L82 PathProgramCache]: Analyzing trace with hash -1174685609, now seen corresponding path program 1 times [2020-09-04 20:28:19,958 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:28:19,958 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [948720541] [2020-09-04 20:28:19,958 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:28:20,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:20,290 WARN L193 SmtUtils]: Spent 195.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:28:20,291 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:28:20,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:20,371 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:28:20,372 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:20,373 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:28:20,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:20,376 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:28:20,377 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:20,380 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:28:20,381 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:20,397 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:28:20,398 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:20,410 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:28:20,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:20,422 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:20,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:20,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:28:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:20,431 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:28:20,432 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:20,434 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 167 [2020-09-04 20:28:20,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:20,437 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-04 20:28:20,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:20,539 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-09-04 20:28:20,540 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [948720541] [2020-09-04 20:28:20,540 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:28:20,541 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:28:20,541 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1124127602] [2020-09-04 20:28:20,542 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:28:20,542 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:28:20,542 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:28:20,543 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:28:20,543 INFO L87 Difference]: Start difference. First operand 527 states and 574 transitions. Second operand 10 states. [2020-09-04 20:28:21,110 WARN L193 SmtUtils]: Spent 214.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:22,728 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:23,000 WARN L193 SmtUtils]: Spent 229.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:23,383 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:24,400 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:24,726 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:28:25,038 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:25,342 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:28:25,633 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:25,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:28:25,882 INFO L93 Difference]: Finished difference Result 684 states and 792 transitions. [2020-09-04 20:28:25,882 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 19 states. [2020-09-04 20:28:25,882 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 189 [2020-09-04 20:28:25,883 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:28:25,888 INFO L225 Difference]: With dead ends: 684 [2020-09-04 20:28:25,888 INFO L226 Difference]: Without dead ends: 681 [2020-09-04 20:28:25,889 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 53 GetRequests, 32 SyntacticMatches, 0 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 59 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=143, Invalid=363, Unknown=0, NotChecked=0, Total=506 [2020-09-04 20:28:25,890 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 681 states. [2020-09-04 20:28:26,034 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 681 to 527. [2020-09-04 20:28:26,034 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 527 states. [2020-09-04 20:28:26,036 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 527 states to 527 states and 573 transitions. [2020-09-04 20:28:26,037 INFO L78 Accepts]: Start accepts. Automaton has 527 states and 573 transitions. Word has length 189 [2020-09-04 20:28:26,042 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:28:26,042 INFO L479 AbstractCegarLoop]: Abstraction has 527 states and 573 transitions. [2020-09-04 20:28:26,042 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:28:26,042 INFO L276 IsEmpty]: Start isEmpty. Operand 527 states and 573 transitions. [2020-09-04 20:28:26,051 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-04 20:28:26,051 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:28:26,051 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:28:26,052 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 20:28:26,052 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:28:26,052 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:28:26,052 INFO L82 PathProgramCache]: Analyzing trace with hash 2096548391, now seen corresponding path program 1 times [2020-09-04 20:28:26,053 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:28:26,053 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2132877636] [2020-09-04 20:28:26,053 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:28:26,098 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,427 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:28:26,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:28:26,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,468 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:28:26,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,470 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:28:26,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,471 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:28:26,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,473 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:28:26,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,480 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:28:26,481 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,491 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:28:26,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,521 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:26,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,582 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:28:26,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,585 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:28:26,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,589 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 20:28:26,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 20:28:26,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 20:28:26,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,598 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-04 20:28:26,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,600 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-04 20:28:26,601 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:26,653 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-04 20:28:26,653 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2132877636] [2020-09-04 20:28:26,654 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:28:26,654 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 20:28:26,654 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1346903446] [2020-09-04 20:28:26,655 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 20:28:26,655 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:28:26,655 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 20:28:26,656 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 20:28:26,656 INFO L87 Difference]: Start difference. First operand 527 states and 573 transitions. Second operand 10 states. [2020-09-04 20:28:27,845 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 20:28:28,161 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:28:28,484 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 194 [2020-09-04 20:28:28,792 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:29,119 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:29,405 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 20:28:30,593 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:28:30,593 INFO L93 Difference]: Finished difference Result 1112 states and 1291 transitions. [2020-09-04 20:28:30,593 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-09-04 20:28:30,593 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 212 [2020-09-04 20:28:30,594 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:28:30,598 INFO L225 Difference]: With dead ends: 1112 [2020-09-04 20:28:30,598 INFO L226 Difference]: Without dead ends: 695 [2020-09-04 20:28:30,600 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 46 GetRequests, 31 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 21 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=75, Invalid=197, Unknown=0, NotChecked=0, Total=272 [2020-09-04 20:28:30,601 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 695 states. [2020-09-04 20:28:30,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 695 to 543. [2020-09-04 20:28:30,774 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 543 states. [2020-09-04 20:28:30,776 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 543 states to 543 states and 589 transitions. [2020-09-04 20:28:30,777 INFO L78 Accepts]: Start accepts. Automaton has 543 states and 589 transitions. Word has length 212 [2020-09-04 20:28:30,777 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:28:30,778 INFO L479 AbstractCegarLoop]: Abstraction has 543 states and 589 transitions. [2020-09-04 20:28:30,778 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 20:28:30,778 INFO L276 IsEmpty]: Start isEmpty. Operand 543 states and 589 transitions. [2020-09-04 20:28:30,780 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 213 [2020-09-04 20:28:30,780 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:28:30,781 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:28:30,781 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 20:28:30,781 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:28:30,781 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:28:30,781 INFO L82 PathProgramCache]: Analyzing trace with hash 1014599658, now seen corresponding path program 1 times [2020-09-04 20:28:30,782 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:28:30,782 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1345043332] [2020-09-04 20:28:30,782 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:28:30,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,116 WARN L193 SmtUtils]: Spent 220.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:28:31,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:28:31,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:28:31,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,180 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:28:31,181 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:28:31,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:28:31,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,196 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 20:28:31,197 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-09-04 20:28:31,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,230 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:31,232 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,245 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:28:31,246 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:28:31,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 20:28:31,263 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,264 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 20:28:31,265 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,266 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 20:28:31,267 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,270 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 190 [2020-09-04 20:28:31,271 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,272 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 200 [2020-09-04 20:28:31,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:31,350 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2020-09-04 20:28:31,351 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1345043332] [2020-09-04 20:28:31,351 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 20:28:31,351 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-09-04 20:28:31,352 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [448154120] [2020-09-04 20:28:31,352 INFO L459 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-09-04 20:28:31,352 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:28:31,353 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-09-04 20:28:31,353 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=13, Invalid=29, Unknown=0, NotChecked=0, Total=42 [2020-09-04 20:28:31,353 INFO L87 Difference]: Start difference. First operand 543 states and 589 transitions. Second operand 7 states. [2020-09-04 20:28:31,848 WARN L193 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:32,431 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:34,805 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:28:34,806 INFO L93 Difference]: Finished difference Result 1547 states and 1835 transitions. [2020-09-04 20:28:34,806 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 20:28:34,806 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 212 [2020-09-04 20:28:34,807 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:28:34,813 INFO L225 Difference]: With dead ends: 1547 [2020-09-04 20:28:34,813 INFO L226 Difference]: Without dead ends: 1114 [2020-09-04 20:28:34,816 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 54 GetRequests, 39 SyntacticMatches, 2 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 30 ImplicationChecksByTransitivity, 0.8s TimeCoverageRelationStatistics Valid=64, Invalid=146, Unknown=0, NotChecked=0, Total=210 [2020-09-04 20:28:34,818 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1114 states. [2020-09-04 20:28:35,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1114 to 941. [2020-09-04 20:28:35,193 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 941 states. [2020-09-04 20:28:35,195 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 941 states to 941 states and 1053 transitions. [2020-09-04 20:28:35,196 INFO L78 Accepts]: Start accepts. Automaton has 941 states and 1053 transitions. Word has length 212 [2020-09-04 20:28:35,196 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:28:35,197 INFO L479 AbstractCegarLoop]: Abstraction has 941 states and 1053 transitions. [2020-09-04 20:28:35,197 INFO L480 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-09-04 20:28:35,197 INFO L276 IsEmpty]: Start isEmpty. Operand 941 states and 1053 transitions. [2020-09-04 20:28:35,199 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 218 [2020-09-04 20:28:35,199 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:28:35,199 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:28:35,199 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 20:28:35,200 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:28:35,200 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:28:35,200 INFO L82 PathProgramCache]: Analyzing trace with hash 1851258257, now seen corresponding path program 1 times [2020-09-04 20:28:35,200 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:28:35,200 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1142717001] [2020-09-04 20:28:35,200 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:28:35,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,554 WARN L193 SmtUtils]: Spent 236.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 20:28:35,555 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 20:28:35,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 20:28:35,591 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,593 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 20:28:35,593 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 20:28:35,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 20:28:35,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-04 20:28:35,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,703 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-09-04 20:28:35,704 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,731 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-09-04 20:28:35,735 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,755 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 20:28:35,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,758 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 20:28:35,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,760 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 20:28:35,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,856 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 20:28:35,859 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,927 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 20:28:35,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:35,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 20:28:35,999 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:36,004 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 195 [2020-09-04 20:28:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:36,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 205 [2020-09-04 20:28:36,007 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 20:28:36,057 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2020-09-04 20:28:36,058 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1142717001] [2020-09-04 20:28:36,058 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 1 imperfect interpolant sequences. [2020-09-04 20:28:36,058 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [20] total 20 [2020-09-04 20:28:36,059 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [866500882] [2020-09-04 20:28:36,060 INFO L459 AbstractCegarLoop]: Interpolant automaton has 20 states [2020-09-04 20:28:36,060 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 20:28:36,060 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 20 interpolants. [2020-09-04 20:28:36,061 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=337, Unknown=0, NotChecked=0, Total=380 [2020-09-04 20:28:36,061 INFO L87 Difference]: Start difference. First operand 941 states and 1053 transitions. Second operand 20 states. [2020-09-04 20:28:36,676 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:37,115 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 20:28:37,451 WARN L193 SmtUtils]: Spent 299.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-04 20:28:37,781 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:38,108 WARN L193 SmtUtils]: Spent 279.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 20:28:38,418 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:39,441 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 20:28:40,860 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:41,217 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 20:28:41,646 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:42,003 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:42,351 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 20:28:42,702 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 20:28:43,054 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:43,411 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 20:28:43,791 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:44,234 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 20:28:44,605 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 20:28:44,973 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 20:28:45,686 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-09-04 20:28:46,453 WARN L193 SmtUtils]: Spent 566.00 ms on a formula simplification. DAG size of input: 200 DAG size of output: 190 [2020-09-04 20:28:47,075 WARN L193 SmtUtils]: Spent 552.00 ms on a formula simplification. DAG size of input: 195 DAG size of output: 188 [2020-09-04 20:28:49,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 20:28:49,050 INFO L93 Difference]: Finished difference Result 1897 states and 2191 transitions. [2020-09-04 20:28:49,050 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 37 states. [2020-09-04 20:28:49,051 INFO L78 Accepts]: Start accepts. Automaton has 20 states. Word has length 217 [2020-09-04 20:28:49,051 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 20:28:49,057 INFO L225 Difference]: With dead ends: 1897 [2020-09-04 20:28:49,057 INFO L226 Difference]: Without dead ends: 1066 [2020-09-04 20:28:49,060 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 93 GetRequests, 42 SyntacticMatches, 1 SemanticMatches, 50 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 513 ImplicationChecksByTransitivity, 8.5s TimeCoverageRelationStatistics Valid=497, Invalid=2155, Unknown=0, NotChecked=0, Total=2652 [2020-09-04 20:28:49,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1066 states. [2020-09-04 20:28:49,557 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1066 to 898. [2020-09-04 20:28:49,557 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 898 states. [2020-09-04 20:28:49,560 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 898 states to 898 states and 991 transitions. [2020-09-04 20:28:49,561 INFO L78 Accepts]: Start accepts. Automaton has 898 states and 991 transitions. Word has length 217 [2020-09-04 20:28:49,561 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 20:28:49,561 INFO L479 AbstractCegarLoop]: Abstraction has 898 states and 991 transitions. [2020-09-04 20:28:49,562 INFO L480 AbstractCegarLoop]: Interpolant automaton has 20 states. [2020-09-04 20:28:49,562 INFO L276 IsEmpty]: Start isEmpty. Operand 898 states and 991 transitions. [2020-09-04 20:28:49,566 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 265 [2020-09-04 20:28:49,566 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 20:28:49,567 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-09-04 20:28:49,567 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 20:28:49,568 INFO L427 AbstractCegarLoop]: === Iteration 11 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 20:28:49,568 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 20:28:49,568 INFO L82 PathProgramCache]: Analyzing trace with hash -1008459971, now seen corresponding path program 1 times [2020-09-04 20:28:49,568 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 20:28:49,569 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1919826438] [2020-09-04 20:28:49,569 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 20:28:49,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:28:49,659 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:28:49,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 20:28:49,768 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 20:28:50,134 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 20:28:50,135 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 20:28:50,135 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2020-09-04 20:28:50,463 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 08:28:50 BoogieIcfgContainer [2020-09-04 20:28:50,463 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 20:28:50,466 INFO L168 Benchmark]: Toolchain (without parser) took 57551.84 ms. Allocated memory was 138.9 MB in the beginning and 878.2 MB in the end (delta: 739.2 MB). Free memory was 102.2 MB in the beginning and 561.3 MB in the end (delta: -459.1 MB). Peak memory consumption was 280.1 MB. Max. memory is 7.1 GB. [2020-09-04 20:28:50,471 INFO L168 Benchmark]: CDTParser took 0.89 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-09-04 20:28:50,472 INFO L168 Benchmark]: CACSL2BoogieTranslator took 718.01 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 102.0 MB in the beginning and 174.2 MB in the end (delta: -72.3 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. [2020-09-04 20:28:50,473 INFO L168 Benchmark]: Boogie Preprocessor took 99.47 ms. Allocated memory is still 204.5 MB. Free memory was 174.2 MB in the beginning and 170.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-04 20:28:50,476 INFO L168 Benchmark]: RCFGBuilder took 1256.35 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 170.0 MB in the beginning and 181.1 MB in the end (delta: -11.1 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. [2020-09-04 20:28:50,479 INFO L168 Benchmark]: TraceAbstraction took 55471.16 ms. Allocated memory was 237.0 MB in the beginning and 878.2 MB in the end (delta: 641.2 MB). Free memory was 181.1 MB in the beginning and 561.3 MB in the end (delta: -380.2 MB). Peak memory consumption was 261.0 MB. Max. memory is 7.1 GB. [2020-09-04 20:28:50,484 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.89 ms. Allocated memory is still 138.9 MB. Free memory was 121.5 MB in the beginning and 121.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 718.01 ms. Allocated memory was 138.9 MB in the beginning and 204.5 MB in the end (delta: 65.5 MB). Free memory was 102.0 MB in the beginning and 174.2 MB in the end (delta: -72.3 MB). Peak memory consumption was 29.5 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 99.47 ms. Allocated memory is still 204.5 MB. Free memory was 174.2 MB in the beginning and 170.0 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1256.35 ms. Allocated memory was 204.5 MB in the beginning and 237.0 MB in the end (delta: 32.5 MB). Free memory was 170.0 MB in the beginning and 181.1 MB in the end (delta: -11.1 MB). Peak memory consumption was 86.1 MB. Max. memory is 7.1 GB. * TraceAbstraction took 55471.16 ms. Allocated memory was 237.0 MB in the beginning and 878.2 MB in the end (delta: 641.2 MB). Free memory was 181.1 MB in the beginning and 561.3 MB in the end (delta: -380.2 MB). Peak memory consumption was 261.0 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 887]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L209] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=159, \old(methaneLevelCritical)=142, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=136, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=142, pumpRunning=135, systemActive=134, waterLevel=136] [L480] int waterLevel = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=159, \old(methaneLevelCritical)=142, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=136, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=142, pumpRunning=135, systemActive=134, waterLevel=1] [L481] int methaneLevelCritical = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=159, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=136, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=0, pumpRunning=135, systemActive=134, waterLevel=1] [L578] int pumpRunning = 0; VAL [\old(cleanupTimeShifts)=171, \old(head)=176, \old(head)=159, \old(methaneLevelCritical)=142, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=136, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=134, waterLevel=1] [L579] int systemActive = 1; VAL [\old(cleanupTimeShifts)=171, \old(head)=159, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=136, cleanupTimeShifts=171, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L749] int cleanupTimeShifts = 4; VAL [\old(cleanupTimeShifts)=171, \old(head)=159, \old(head)=176, \old(methaneLevelCritical)=142, \old(pumpRunning)=135, \old(systemActive)=134, \old(waterLevel)=136, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L825] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L826] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L830] FCALL select_helpers() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L831] FCALL select_features() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L832] CALL, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L874] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L877] retValue_acc = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L878] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, waterLevel=1] [L832] RET, EXPR valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, valid_product()=1, waterLevel=1] [L832] tmp = valid_product() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, valid_product()=1, waterLevel=1] [L834] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L836] FCALL setup() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=1] [L837] CALL runTest() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L816] CALL test() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L411] int splverifierCounter ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L412] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L413] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L414] int tmp___1 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L415] int tmp___2 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L418] splverifierCounter = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L420] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L422] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, waterLevel=1] [L428] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L430] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=1] [L432] CALL waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L498] COND TRUE waterLevel < 2 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=1] [L499] waterLevel = waterLevel + 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L432] RET waterRise() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, waterLevel=2] [L438] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L440] COND FALSE !(\read(tmp___0)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, waterLevel=2] [L448] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L450] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L463] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L586] COND FALSE !(\read(pumpRunning)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L593] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L595] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L615] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L618] COND TRUE ! pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] CALL, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L730] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L731] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L732] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L736] CALL, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L560] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L563] COND FALSE !(waterLevel < 2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L567] retValue_acc = 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L568] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L736] RET, EXPR isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L736] tmp = isHighWaterSensorDry() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterSensorDry()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L738] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L741] tmp___0 = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L743] retValue_acc = tmp___0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L744] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=1, systemActive=1, tmp=0, tmp___0=1, waterLevel=2] [L620] RET, EXPR isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L620] tmp = isHighWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isHighWaterLevel()=1, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L622] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=1, waterLevel=2] [L624] CALL activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L649] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] CALL, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L674] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L678] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L519] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L522] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L523] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L678] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L678] retValue_acc = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L680] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, retValue_acc=0, systemActive=1, waterLevel=2] [L653] RET, EXPR isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L653] tmp = isMethaneAlarm() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneAlarm()=0, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L655] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, tmp=0, waterLevel=2] [L659] CALL activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=0, systemActive=1, waterLevel=2] [L643] pumpRunning = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L659] RET activatePump__wrappee__highWaterSensor() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L624] RET activatePump() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=1, waterLevel=2] [L595] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L601] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L893] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L894] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L898] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L519] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L522] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L523] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, \result=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, retValue_acc=0, systemActive=1, waterLevel=2] [L898] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L898] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=0, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L900] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, tmp=0, waterLevel=2] [L601] RET __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L463] RET timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L420] COND TRUE 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L422] COND TRUE splverifierCounter < 4 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=1, tmp___0=0, tmp___2=1, waterLevel=2] [L428] tmp = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=0, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L430] COND FALSE !(\read(tmp)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=0, tmp___2=1, waterLevel=2] [L438] tmp___0 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L440] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L442] CALL changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L510] COND FALSE !(\read(methaneLevelCritical)) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=0, pumpRunning=1, systemActive=1, waterLevel=2] [L513] methaneLevelCritical = 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L442] RET changeMethaneLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L448] tmp___2 = __VERIFIER_nondet_int() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, __VERIFIER_nondet_int()=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L450] COND TRUE \read(tmp___2) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=0, \old(waterLevel)=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, splverifierCounter=0, systemActive=1, tmp=0, tmp___0=1, tmp___2=1, waterLevel=2] [L463] CALL timeShift() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L586] COND TRUE \read(pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L588] CALL lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L486] COND TRUE waterLevel > 0 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=2] [L487] waterLevel = waterLevel - 1 VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L588] RET lowerWaterLevel() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L593] COND TRUE \read(systemActive) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L595] CALL processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L615] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L618] COND FALSE !(! pumpRunning) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L633] FCALL processEnvironment__wrappee__base() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L595] RET processEnvironment() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L601] CALL __utac_acc__Specification1_spec__1() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L893] int tmp ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L894] int tmp___0 ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L898] CALL, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L519] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L522] retValue_acc = methaneLevelCritical VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L523] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L898] RET, EXPR isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L898] tmp = isMethaneLevelCritical() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isMethaneLevelCritical()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L900] COND TRUE \read(tmp) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L902] CALL, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L685] int retValue_acc ; VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L688] retValue_acc = pumpRunning VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L689] return (retValue_acc); VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, \result=1, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, retValue_acc=1, systemActive=1, waterLevel=1] [L902] RET, EXPR isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, waterLevel=1] [L902] tmp___0 = isPumpRunning() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, isPumpRunning()=1, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L904] COND TRUE \read(tmp___0) VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, tmp=1, tmp___0=1, waterLevel=1] [L906] CALL __automaton_fail() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] [L887] __VERIFIER_error() VAL [\old(methaneLevelCritical)=0, \old(pumpRunning)=1, \old(waterLevel)=2, cleanupTimeShifts=4, head={0:0}, methaneLevelCritical=1, pumpRunning=1, systemActive=1, waterLevel=1] - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 615 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 55.0s, OverallIterations: 11, TraceHistogramMax: 3, AutomataDifference: 45.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2429 SDtfs, 4871 SDslu, 5332 SDs, 0 SdLazy, 10446 SolverSat, 1431 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 18.9s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 430 GetRequests, 265 SyntacticMatches, 4 SemanticMatches, 161 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 721 ImplicationChecksByTransitivity, 24.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=941occurred in iteration=9, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.8s AutomataMinimizationTime, 10 MinimizatonAttempts, 964 StatesRemovedByMinimization, 10 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.6s SatisfiabilityAnalysisTime, 5.1s InterpolantComputationTime, 2059 NumberOfCodeBlocks, 2059 NumberOfCodeBlocksAsserted, 11 NumberOfCheckSat, 1785 ConstructedInterpolants, 0 QuantifiedInterpolants, 817315 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 10 InterpolantComputations, 9 PerfectInterpolantSequences, 12/15 InterpolantCoveringCapability, 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...