/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-3af5e1f [2020-09-04 15:34:48,249 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-09-04 15:34:48,253 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-09-04 15:34:48,279 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-09-04 15:34:48,280 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-09-04 15:34:48,281 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-09-04 15:34:48,283 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-09-04 15:34:48,285 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-09-04 15:34:48,287 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-09-04 15:34:48,288 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-09-04 15:34:48,289 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-09-04 15:34:48,290 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-09-04 15:34:48,290 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-09-04 15:34:48,292 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-09-04 15:34:48,293 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-09-04 15:34:48,294 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-09-04 15:34:48,295 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-09-04 15:34:48,296 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-09-04 15:34:48,298 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-09-04 15:34:48,300 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-09-04 15:34:48,302 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-09-04 15:34:48,303 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-09-04 15:34:48,305 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-09-04 15:34:48,306 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-09-04 15:34:48,308 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-09-04 15:34:48,309 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-09-04 15:34:48,309 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-09-04 15:34:48,310 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-09-04 15:34:48,311 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-09-04 15:34:48,312 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-09-04 15:34:48,312 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-09-04 15:34:48,313 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-09-04 15:34:48,314 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-09-04 15:34:48,315 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-09-04 15:34:48,320 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-09-04 15:34:48,320 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-09-04 15:34:48,321 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-09-04 15:34:48,321 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-09-04 15:34:48,321 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-09-04 15:34:48,322 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-09-04 15:34:48,323 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-09-04 15:34:48,324 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 15:34:48,336 INFO L113 SettingsManager]: Loading preferences was successful [2020-09-04 15:34:48,337 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-09-04 15:34:48,338 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-09-04 15:34:48,338 INFO L138 SettingsManager]: * sizeof long=4 [2020-09-04 15:34:48,339 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-09-04 15:34:48,339 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-09-04 15:34:48,339 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-09-04 15:34:48,339 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-09-04 15:34:48,339 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-09-04 15:34:48,340 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-09-04 15:34:48,340 INFO L138 SettingsManager]: * sizeof long double=12 [2020-09-04 15:34:48,340 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-09-04 15:34:48,340 INFO L138 SettingsManager]: * Use constant arrays=true [2020-09-04 15:34:48,340 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-09-04 15:34:48,341 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-09-04 15:34:48,341 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-09-04 15:34:48,341 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-09-04 15:34:48,341 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-09-04 15:34:48,342 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-09-04 15:34:48,342 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-09-04 15:34:48,342 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-09-04 15:34:48,342 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-09-04 15:34:48,342 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-09-04 15:34:48,776 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-09-04 15:34:48,798 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-09-04 15:34:48,802 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-09-04 15:34:48,804 INFO L271 PluginConnector]: Initializing CDTParser... [2020-09-04 15:34:48,805 INFO L275 PluginConnector]: CDTParser initialized [2020-09-04 15:34:48,807 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-09-04 15:34:48,898 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c3c5bd15/9fbdcbc1d8da4f698db2d567aae14195/FLAG859048d5d [2020-09-04 15:34:49,465 INFO L306 CDTParser]: Found 1 translation units. [2020-09-04 15:34:49,466 INFO L160 CDTParser]: Scanning /storage/repos/ultimate-2/trunk/examples/svcomp/product-lines/minepump_spec4_product48.cil.c [2020-09-04 15:34:49,497 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c3c5bd15/9fbdcbc1d8da4f698db2d567aae14195/FLAG859048d5d [2020-09-04 15:34:49,743 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate-2/releaseScripts/default/UAutomizer-linux/data/9c3c5bd15/9fbdcbc1d8da4f698db2d567aae14195 [2020-09-04 15:34:49,759 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-09-04 15:34:49,762 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-09-04 15:34:49,766 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-09-04 15:34:49,766 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-09-04 15:34:49,770 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-09-04 15:34:49,771 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:34:49" (1/1) ... [2020-09-04 15:34:49,776 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7be095dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:49, skipping insertion in model container [2020-09-04 15:34:49,776 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 04.09 03:34:49" (1/1) ... [2020-09-04 15:34:49,787 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-09-04 15:34:49,866 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-09-04 15:34:50,380 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:34:50,395 INFO L203 MainTranslator]: Completed pre-run [2020-09-04 15:34:50,492 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-09-04 15:34:50,532 INFO L208 MainTranslator]: Completed translation [2020-09-04 15:34:50,533 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:50 WrapperNode [2020-09-04 15:34:50,533 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-09-04 15:34:50,534 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-09-04 15:34:50,534 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-09-04 15:34:50,534 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-09-04 15:34:50,549 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:50" (1/1) ... [2020-09-04 15:34:50,549 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:50" (1/1) ... [2020-09-04 15:34:50,571 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:50" (1/1) ... [2020-09-04 15:34:50,571 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:50" (1/1) ... [2020-09-04 15:34:50,606 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:50" (1/1) ... [2020-09-04 15:34:50,618 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:50" (1/1) ... [2020-09-04 15:34:50,624 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:50" (1/1) ... [2020-09-04 15:34:50,632 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-09-04 15:34:50,633 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-09-04 15:34:50,633 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-09-04 15:34:50,633 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-09-04 15:34:50,635 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:50" (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 15:34:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-09-04 15:34:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-09-04 15:34:50,710 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-09-04 15:34:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-09-04 15:34:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-09-04 15:34:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-09-04 15:34:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-09-04 15:34:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-09-04 15:34:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-09-04 15:34:50,711 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-09-04 15:34:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-09-04 15:34:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-09-04 15:34:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-09-04 15:34:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-09-04 15:34:50,712 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-09-04 15:34:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-09-04 15:34:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-09-04 15:34:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-09-04 15:34:50,713 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 15:34:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-09-04 15:34:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-09-04 15:34:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-09-04 15:34:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-09-04 15:34:50,714 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-09-04 15:34:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-09-04 15:34:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-09-04 15:34:50,715 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-09-04 15:34:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-09-04 15:34:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-09-04 15:34:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-09-04 15:34:50,718 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-09-04 15:34:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-09-04 15:34:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-09-04 15:34:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-09-04 15:34:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-09-04 15:34:50,719 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-09-04 15:34:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-09-04 15:34:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-09-04 15:34:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-09-04 15:34:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-09-04 15:34:50,720 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-09-04 15:34:50,720 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-09-04 15:34:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-09-04 15:34:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-09-04 15:34:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-09-04 15:34:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-09-04 15:34:50,721 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-09-04 15:34:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-09-04 15:34:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-09-04 15:34:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-09-04 15:34:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-09-04 15:34:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-09-04 15:34:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-09-04 15:34:50,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-09-04 15:34:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-09-04 15:34:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-09-04 15:34:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-09-04 15:34:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-09-04 15:34:50,723 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-09-04 15:34:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-09-04 15:34:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-09-04 15:34:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-09-04 15:34:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-09-04 15:34:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-09-04 15:34:50,724 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-09-04 15:34:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-09-04 15:34:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-09-04 15:34:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-09-04 15:34:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-09-04 15:34:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-09-04 15:34:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-09-04 15:34:50,725 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-09-04 15:34:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-09-04 15:34:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-09-04 15:34:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-09-04 15:34:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-09-04 15:34:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-09-04 15:34:50,726 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-09-04 15:34:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-09-04 15:34:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-09-04 15:34:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-09-04 15:34:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-09-04 15:34:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-09-04 15:34:50,727 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-09-04 15:34:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-09-04 15:34:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-09-04 15:34:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-09-04 15:34:50,728 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-09-04 15:34:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-09-04 15:34:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-09-04 15:34:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-09-04 15:34:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-09-04 15:34:50,732 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-09-04 15:34:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-09-04 15:34:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-09-04 15:34:50,733 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-09-04 15:34:51,975 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-09-04 15:34:51,975 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-09-04 15:34:51,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:34:51 BoogieIcfgContainer [2020-09-04 15:34:51,982 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-09-04 15:34:51,984 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-09-04 15:34:51,984 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-09-04 15:34:51,987 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-09-04 15:34:51,988 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 04.09 03:34:49" (1/3) ... [2020-09-04 15:34:51,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b7552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:34:51, skipping insertion in model container [2020-09-04 15:34:51,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 04.09 03:34:50" (2/3) ... [2020-09-04 15:34:51,989 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@39b7552 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 04.09 03:34:51, skipping insertion in model container [2020-09-04 15:34:51,989 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 04.09 03:34:51" (3/3) ... [2020-09-04 15:34:51,991 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product48.cil.c [2020-09-04 15:34:52,003 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-09-04 15:34:52,015 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-09-04 15:34:52,039 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-09-04 15:34:52,071 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-09-04 15:34:52,072 INFO L376 AbstractCegarLoop]: Hoare is true [2020-09-04 15:34:52,072 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-09-04 15:34:52,072 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-09-04 15:34:52,072 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-09-04 15:34:52,072 INFO L380 AbstractCegarLoop]: Difference is false [2020-09-04 15:34:52,073 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-09-04 15:34:52,073 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-09-04 15:34:52,098 INFO L276 IsEmpty]: Start isEmpty. Operand 325 states. [2020-09-04 15:34:52,122 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 143 [2020-09-04 15:34:52,122 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:34:52,124 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 15:34:52,124 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:34:52,132 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:34:52,133 INFO L82 PathProgramCache]: Analyzing trace with hash 1278717342, now seen corresponding path program 1 times [2020-09-04 15:34:52,147 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:34:52,148 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [585244294] [2020-09-04 15:34:52,148 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:34:52,243 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:34:52,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,023 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:34:53,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:34:53,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:34:53,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,154 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:34:53,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,157 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:34:53,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,160 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:34:53,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 120 [2020-09-04 15:34:53,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,164 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 130 [2020-09-04 15:34:53,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:53,194 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 15:34:53,196 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [585244294] [2020-09-04 15:34:53,199 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:34:53,199 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-09-04 15:34:53,200 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1277068652] [2020-09-04 15:34:53,206 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-09-04 15:34:53,206 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:34:53,224 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-09-04 15:34:53,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:34:53,227 INFO L87 Difference]: Start difference. First operand 325 states. Second operand 3 states. [2020-09-04 15:34:54,818 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:34:54,819 INFO L93 Difference]: Finished difference Result 520 states and 619 transitions. [2020-09-04 15:34:54,820 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-09-04 15:34:54,822 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 142 [2020-09-04 15:34:54,824 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:34:54,844 INFO L225 Difference]: With dead ends: 520 [2020-09-04 15:34:54,844 INFO L226 Difference]: Without dead ends: 320 [2020-09-04 15:34:54,851 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-09-04 15:34:54,872 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 320 states. [2020-09-04 15:34:54,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 320 to 274. [2020-09-04 15:34:54,988 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 274 states. [2020-09-04 15:34:54,990 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 274 states to 274 states and 299 transitions. [2020-09-04 15:34:54,993 INFO L78 Accepts]: Start accepts. Automaton has 274 states and 299 transitions. Word has length 142 [2020-09-04 15:34:54,994 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:34:54,994 INFO L479 AbstractCegarLoop]: Abstraction has 274 states and 299 transitions. [2020-09-04 15:34:54,994 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-09-04 15:34:54,994 INFO L276 IsEmpty]: Start isEmpty. Operand 274 states and 299 transitions. [2020-09-04 15:34:54,998 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 144 [2020-09-04 15:34:54,999 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:34:54,999 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 15:34:54,999 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-09-04 15:34:55,000 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:34:55,000 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:34:55,000 INFO L82 PathProgramCache]: Analyzing trace with hash 1976883783, now seen corresponding path program 1 times [2020-09-04 15:34:55,000 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:34:55,001 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [958774261] [2020-09-04 15:34:55,001 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:34:55,004 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:34:55,062 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:55,517 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:34:55,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:34:55,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:55,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:34:55,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:55,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:34:55,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:55,603 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:34:55,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:55,606 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:34:55,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:55,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 121 [2020-09-04 15:34:55,608 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:55,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 131 [2020-09-04 15:34:55,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:55,637 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 15:34:55,638 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [958774261] [2020-09-04 15:34:55,638 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:34:55,639 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-09-04 15:34:55,639 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [204898190] [2020-09-04 15:34:55,641 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-09-04 15:34:55,642 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:34:55,642 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-09-04 15:34:55,643 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-09-04 15:34:55,643 INFO L87 Difference]: Start difference. First operand 274 states and 299 transitions. Second operand 4 states. [2020-09-04 15:34:56,385 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:34:57,548 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:34:57,548 INFO L93 Difference]: Finished difference Result 427 states and 482 transitions. [2020-09-04 15:34:57,550 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-09-04 15:34:57,551 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 143 [2020-09-04 15:34:57,552 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:34:57,556 INFO L225 Difference]: With dead ends: 427 [2020-09-04 15:34:57,556 INFO L226 Difference]: Without dead ends: 303 [2020-09-04 15:34:57,559 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-09-04 15:34:57,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 303 states. [2020-09-04 15:34:57,677 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 303 to 264. [2020-09-04 15:34:57,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 264 states. [2020-09-04 15:34:57,679 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 264 states to 264 states and 286 transitions. [2020-09-04 15:34:57,679 INFO L78 Accepts]: Start accepts. Automaton has 264 states and 286 transitions. Word has length 143 [2020-09-04 15:34:57,680 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:34:57,680 INFO L479 AbstractCegarLoop]: Abstraction has 264 states and 286 transitions. [2020-09-04 15:34:57,680 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-09-04 15:34:57,680 INFO L276 IsEmpty]: Start isEmpty. Operand 264 states and 286 transitions. [2020-09-04 15:34:57,682 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 157 [2020-09-04 15:34:57,683 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:34:57,683 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] [2020-09-04 15:34:57,683 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-09-04 15:34:57,683 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:34:57,684 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:34:57,684 INFO L82 PathProgramCache]: Analyzing trace with hash 1434420260, now seen corresponding path program 1 times [2020-09-04 15:34:57,684 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:34:57,684 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2089919548] [2020-09-04 15:34:57,685 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:34:57,687 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:34:57,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:58,081 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:34:58,082 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:34:58,090 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:58,122 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:34:58,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:58,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:34:58,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:58,125 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:34:58,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:58,169 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:34:58,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:58,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:34:58,183 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:58,198 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 134 [2020-09-04 15:34:58,199 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:58,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-04 15:34:58,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:34:58,237 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 15:34:58,238 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [2089919548] [2020-09-04 15:34:58,238 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:34:58,239 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-09-04 15:34:58,239 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1686703386] [2020-09-04 15:34:58,239 INFO L459 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-09-04 15:34:58,240 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:34:58,240 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-09-04 15:34:58,240 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-09-04 15:34:58,241 INFO L87 Difference]: Start difference. First operand 264 states and 286 transitions. Second operand 10 states. [2020-09-04 15:34:58,891 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:34:59,293 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:34:59,586 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 192 [2020-09-04 15:34:59,896 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:00,242 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:00,578 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:01,585 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:35:04,439 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:35:04,439 INFO L93 Difference]: Finished difference Result 731 states and 852 transitions. [2020-09-04 15:35:04,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-09-04 15:35:04,440 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 156 [2020-09-04 15:35:04,441 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:35:04,445 INFO L225 Difference]: With dead ends: 731 [2020-09-04 15:35:04,445 INFO L226 Difference]: Without dead ends: 577 [2020-09-04 15:35:04,447 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 20 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.5s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-09-04 15:35:04,449 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 577 states. [2020-09-04 15:35:04,644 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 577 to 478. [2020-09-04 15:35:04,645 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 478 states. [2020-09-04 15:35:04,648 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 478 states to 478 states and 536 transitions. [2020-09-04 15:35:04,649 INFO L78 Accepts]: Start accepts. Automaton has 478 states and 536 transitions. Word has length 156 [2020-09-04 15:35:04,649 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:35:04,650 INFO L479 AbstractCegarLoop]: Abstraction has 478 states and 536 transitions. [2020-09-04 15:35:04,650 INFO L480 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-09-04 15:35:04,650 INFO L276 IsEmpty]: Start isEmpty. Operand 478 states and 536 transitions. [2020-09-04 15:35:04,652 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 162 [2020-09-04 15:35:04,652 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:35:04,653 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] [2020-09-04 15:35:04,653 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-09-04 15:35:04,653 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:35:04,653 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:35:04,654 INFO L82 PathProgramCache]: Analyzing trace with hash -1340372779, now seen corresponding path program 1 times [2020-09-04 15:35:04,654 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:35:04,654 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1937120398] [2020-09-04 15:35:04,655 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:35:04,657 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:35:04,707 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:05,095 WARN L193 SmtUtils]: Spent 246.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:35:05,096 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:35:05,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:05,200 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:35:05,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:05,203 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:35:05,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:05,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:35:05,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:05,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:35:05,270 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:05,288 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:35:05,290 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:05,292 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-09-04 15:35:05,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:05,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-09-04 15:35:05,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:05,381 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 15:35:05,382 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1937120398] [2020-09-04 15:35:05,382 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:35:05,382 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-04 15:35:05,383 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1620504804] [2020-09-04 15:35:05,383 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 15:35:05,383 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:35:05,384 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 15:35:05,384 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-09-04 15:35:05,384 INFO L87 Difference]: Start difference. First operand 478 states and 536 transitions. Second operand 14 states. [2020-09-04 15:35:06,011 WARN L193 SmtUtils]: Spent 210.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:06,444 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:06,765 WARN L193 SmtUtils]: Spent 285.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:35:07,087 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:07,407 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:07,733 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:08,552 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:35:09,869 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:10,247 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:10,764 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:11,162 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:11,517 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:11,818 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-04 15:35:12,136 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:35:12,494 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:12,819 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:13,289 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:13,743 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-04 15:35:14,166 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:14,594 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:17,233 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:35:17,233 INFO L93 Difference]: Finished difference Result 1680 states and 2103 transitions. [2020-09-04 15:35:17,235 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-09-04 15:35:17,235 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 161 [2020-09-04 15:35:17,236 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:35:17,246 INFO L225 Difference]: With dead ends: 1680 [2020-09-04 15:35:17,246 INFO L226 Difference]: Without dead ends: 1312 [2020-09-04 15:35:17,249 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 56 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 230 ImplicationChecksByTransitivity, 6.3s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-09-04 15:35:17,252 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1312 states. [2020-09-04 15:35:17,694 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1312 to 1169. [2020-09-04 15:35:17,695 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1169 states. [2020-09-04 15:35:17,702 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1169 states to 1169 states and 1381 transitions. [2020-09-04 15:35:17,703 INFO L78 Accepts]: Start accepts. Automaton has 1169 states and 1381 transitions. Word has length 161 [2020-09-04 15:35:17,704 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:35:17,704 INFO L479 AbstractCegarLoop]: Abstraction has 1169 states and 1381 transitions. [2020-09-04 15:35:17,704 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 15:35:17,704 INFO L276 IsEmpty]: Start isEmpty. Operand 1169 states and 1381 transitions. [2020-09-04 15:35:17,709 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2020-09-04 15:35:17,709 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:35:17,709 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] [2020-09-04 15:35:17,709 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-09-04 15:35:17,710 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:35:17,710 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:35:17,710 INFO L82 PathProgramCache]: Analyzing trace with hash -277417807, now seen corresponding path program 1 times [2020-09-04 15:35:17,711 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:35:17,711 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [283416299] [2020-09-04 15:35:17,711 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:35:17,714 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:35:17,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:18,065 WARN L193 SmtUtils]: Spent 232.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:35:18,066 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:35:18,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:18,178 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:35:18,179 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:18,182 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:35:18,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:18,184 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:35:18,185 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:18,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:35:18,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:18,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:35:18,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:18,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-09-04 15:35:18,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:18,211 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-09-04 15:35:18,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:18,214 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-09-04 15:35:18,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:18,248 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 15:35:18,248 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [283416299] [2020-09-04 15:35:18,249 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:35:18,251 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-09-04 15:35:18,252 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [958331997] [2020-09-04 15:35:18,252 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-09-04 15:35:18,252 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:35:18,254 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-09-04 15:35:18,255 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-09-04 15:35:18,255 INFO L87 Difference]: Start difference. First operand 1169 states and 1381 transitions. Second operand 6 states. [2020-09-04 15:35:18,904 WARN L193 SmtUtils]: Spent 288.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:21,772 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:35:21,773 INFO L93 Difference]: Finished difference Result 2774 states and 3444 transitions. [2020-09-04 15:35:21,774 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-09-04 15:35:21,774 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 166 [2020-09-04 15:35:21,774 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:35:21,784 INFO L225 Difference]: With dead ends: 2774 [2020-09-04 15:35:21,784 INFO L226 Difference]: Without dead ends: 1715 [2020-09-04 15:35:21,788 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 33 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-09-04 15:35:21,791 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1715 states. [2020-09-04 15:35:22,207 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1715 to 1588. [2020-09-04 15:35:22,207 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1588 states. [2020-09-04 15:35:22,214 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1588 states to 1588 states and 1850 transitions. [2020-09-04 15:35:22,215 INFO L78 Accepts]: Start accepts. Automaton has 1588 states and 1850 transitions. Word has length 166 [2020-09-04 15:35:22,215 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:35:22,216 INFO L479 AbstractCegarLoop]: Abstraction has 1588 states and 1850 transitions. [2020-09-04 15:35:22,216 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-09-04 15:35:22,216 INFO L276 IsEmpty]: Start isEmpty. Operand 1588 states and 1850 transitions. [2020-09-04 15:35:22,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 210 [2020-09-04 15:35:22,220 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:35:22,221 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 15:35:22,222 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-09-04 15:35:22,222 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:35:22,222 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:35:22,222 INFO L82 PathProgramCache]: Analyzing trace with hash -426920362, now seen corresponding path program 1 times [2020-09-04 15:35:22,222 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:35:22,223 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [834761688] [2020-09-04 15:35:22,223 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:35:22,258 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:35:22,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,616 WARN L193 SmtUtils]: Spent 202.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:35:22,617 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:35:22,642 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,675 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:35:22,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,678 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:35:22,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,679 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:35:22,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,682 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:35:22,683 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-04 15:35:22,693 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,707 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-04 15:35:22,708 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,723 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 15:35:22,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,728 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:22,730 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,732 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:22,733 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,734 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-04 15:35:22,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,737 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 187 [2020-09-04 15:35:22,738 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,740 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 197 [2020-09-04 15:35:22,741 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:22,805 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 15:35:22,806 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [834761688] [2020-09-04 15:35:22,806 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:35:22,806 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2020-09-04 15:35:22,807 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [876945357] [2020-09-04 15:35:22,807 INFO L459 AbstractCegarLoop]: Interpolant automaton has 11 states [2020-09-04 15:35:22,807 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:35:22,808 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2020-09-04 15:35:22,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2020-09-04 15:35:22,808 INFO L87 Difference]: Start difference. First operand 1588 states and 1850 transitions. Second operand 11 states. [2020-09-04 15:35:23,386 WARN L193 SmtUtils]: Spent 213.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:25,558 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:25,901 WARN L193 SmtUtils]: Spent 297.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:26,273 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:26,588 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:26,883 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:27,954 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:28,256 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:28,658 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:35:29,490 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:35:29,491 INFO L93 Difference]: Finished difference Result 1778 states and 2134 transitions. [2020-09-04 15:35:29,491 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 21 states. [2020-09-04 15:35:29,491 INFO L78 Accepts]: Start accepts. Automaton has 11 states. Word has length 209 [2020-09-04 15:35:29,492 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:35:29,503 INFO L225 Difference]: With dead ends: 1778 [2020-09-04 15:35:29,503 INFO L226 Difference]: Without dead ends: 1775 [2020-09-04 15:35:29,505 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 35 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 74 ImplicationChecksByTransitivity, 2.8s TimeCoverageRelationStatistics Valid=171, Invalid=429, Unknown=0, NotChecked=0, Total=600 [2020-09-04 15:35:29,507 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1775 states. [2020-09-04 15:35:30,150 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1775 to 1597. [2020-09-04 15:35:30,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1597 states. [2020-09-04 15:35:30,157 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1597 states to 1597 states and 1858 transitions. [2020-09-04 15:35:30,158 INFO L78 Accepts]: Start accepts. Automaton has 1597 states and 1858 transitions. Word has length 209 [2020-09-04 15:35:30,158 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:35:30,158 INFO L479 AbstractCegarLoop]: Abstraction has 1597 states and 1858 transitions. [2020-09-04 15:35:30,158 INFO L480 AbstractCegarLoop]: Interpolant automaton has 11 states. [2020-09-04 15:35:30,159 INFO L276 IsEmpty]: Start isEmpty. Operand 1597 states and 1858 transitions. [2020-09-04 15:35:30,168 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 270 [2020-09-04 15:35:30,168 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:35:30,169 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 15:35:30,169 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-09-04 15:35:30,169 INFO L427 AbstractCegarLoop]: === Iteration 7 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:35:30,170 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:35:30,170 INFO L82 PathProgramCache]: Analyzing trace with hash -2049626287, now seen corresponding path program 1 times [2020-09-04 15:35:30,170 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:35:30,170 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1922011226] [2020-09-04 15:35:30,171 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:35:30,180 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:35:30,250 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,621 WARN L193 SmtUtils]: Spent 222.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:35:30,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:35:30,648 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,686 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:35:30,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:35:30,688 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,690 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:35:30,690 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:35:30,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,704 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-04 15:35:30,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,747 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-04 15:35:30,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 138 [2020-09-04 15:35:30,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,800 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:30,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,805 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:30,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,807 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-09-04 15:35:30,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,835 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 177 [2020-09-04 15:35:30,836 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,852 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 184 [2020-09-04 15:35:30,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,864 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:30,869 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,901 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:30,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,976 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 15:35:30,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,980 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 15:35:30,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:30,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,987 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:30,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,990 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 15:35:30,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,996 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 247 [2020-09-04 15:35:30,997 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:30,999 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 257 [2020-09-04 15:35:31,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:31,098 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 15:35:31,098 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1922011226] [2020-09-04 15:35:31,099 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:35:31,099 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [18] imperfect sequences [] total 18 [2020-09-04 15:35:31,099 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1097094669] [2020-09-04 15:35:31,100 INFO L459 AbstractCegarLoop]: Interpolant automaton has 18 states [2020-09-04 15:35:31,100 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:35:31,100 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2020-09-04 15:35:31,101 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=43, Invalid=263, Unknown=0, NotChecked=0, Total=306 [2020-09-04 15:35:31,101 INFO L87 Difference]: Start difference. First operand 1597 states and 1858 transitions. Second operand 18 states. [2020-09-04 15:35:32,034 WARN L193 SmtUtils]: Spent 546.00 ms on a formula simplification. DAG size of input: 187 DAG size of output: 186 [2020-09-04 15:35:33,009 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:34,798 WARN L193 SmtUtils]: Spent 563.00 ms on a formula simplification. DAG size of input: 191 DAG size of output: 190 [2020-09-04 15:35:35,538 WARN L193 SmtUtils]: Spent 664.00 ms on a formula simplification. DAG size of input: 194 DAG size of output: 193 [2020-09-04 15:35:36,233 WARN L193 SmtUtils]: Spent 639.00 ms on a formula simplification. DAG size of input: 197 DAG size of output: 196 [2020-09-04 15:35:36,911 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-04 15:35:37,234 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:37,614 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-04 15:35:38,201 WARN L193 SmtUtils]: Spent 553.00 ms on a formula simplification. DAG size of input: 192 DAG size of output: 191 [2020-09-04 15:35:38,539 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-04 15:35:39,099 WARN L193 SmtUtils]: Spent 524.00 ms on a formula simplification. DAG size of input: 190 DAG size of output: 189 [2020-09-04 15:35:39,456 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:39,836 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:35:40,251 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:42,600 WARN L193 SmtUtils]: Spent 266.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:43,050 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:35:43,405 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-09-04 15:35:43,737 WARN L193 SmtUtils]: Spent 300.00 ms on a formula simplification that was a NOOP. DAG size: 196 [2020-09-04 15:35:44,155 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:44,540 WARN L193 SmtUtils]: Spent 276.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:35:44,840 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:47,682 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:35:47,682 INFO L93 Difference]: Finished difference Result 3652 states and 4609 transitions. [2020-09-04 15:35:47,683 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 50 states. [2020-09-04 15:35:47,683 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 269 [2020-09-04 15:35:47,684 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:35:47,696 INFO L225 Difference]: With dead ends: 3652 [2020-09-04 15:35:47,697 INFO L226 Difference]: Without dead ends: 2165 [2020-09-04 15:35:47,704 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 113 GetRequests, 54 SyntacticMatches, 2 SemanticMatches, 57 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 894 ImplicationChecksByTransitivity, 9.4s TimeCoverageRelationStatistics Valid=637, Invalid=2785, Unknown=0, NotChecked=0, Total=3422 [2020-09-04 15:35:47,707 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2165 states. [2020-09-04 15:35:48,539 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2165 to 1781. [2020-09-04 15:35:48,539 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1781 states. [2020-09-04 15:35:48,546 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1781 states to 1781 states and 2046 transitions. [2020-09-04 15:35:48,547 INFO L78 Accepts]: Start accepts. Automaton has 1781 states and 2046 transitions. Word has length 269 [2020-09-04 15:35:48,547 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:35:48,547 INFO L479 AbstractCegarLoop]: Abstraction has 1781 states and 2046 transitions. [2020-09-04 15:35:48,547 INFO L480 AbstractCegarLoop]: Interpolant automaton has 18 states. [2020-09-04 15:35:48,548 INFO L276 IsEmpty]: Start isEmpty. Operand 1781 states and 2046 transitions. [2020-09-04 15:35:48,554 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 291 [2020-09-04 15:35:48,555 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:35:48,555 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 15:35:48,555 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-09-04 15:35:48,556 INFO L427 AbstractCegarLoop]: === Iteration 8 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:35:48,556 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:35:48,556 INFO L82 PathProgramCache]: Analyzing trace with hash -1359047830, now seen corresponding path program 1 times [2020-09-04 15:35:48,556 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:35:48,557 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [707092127] [2020-09-04 15:35:48,557 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:35:48,575 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:35:48,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:48,963 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:35:48,964 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:35:48,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,009 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:35:49,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:35:49,011 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,012 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:35:49,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:35:49,047 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,059 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 124 [2020-09-04 15:35:49,060 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,075 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2020-09-04 15:35:49,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,103 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:49,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:49,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,129 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:49,131 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,162 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 15:35:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,202 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 15:35:49,204 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,208 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:49,209 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,210 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:49,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,213 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 15:35:49,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-04 15:35:49,220 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:49,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 222 [2020-09-04 15:35:49,227 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,246 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 228 [2020-09-04 15:35:49,247 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,249 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 234 [2020-09-04 15:35:49,256 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,259 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:49,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:49,262 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,263 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-04 15:35:49,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,273 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:49,278 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,280 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 268 [2020-09-04 15:35:49,280 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,284 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 278 [2020-09-04 15:35:49,285 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:49,367 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 15:35:49,367 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [707092127] [2020-09-04 15:35:49,367 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:35:49,368 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-09-04 15:35:49,368 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1963278218] [2020-09-04 15:35:49,369 INFO L459 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-09-04 15:35:49,369 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:35:49,369 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-09-04 15:35:49,369 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=177, Unknown=0, NotChecked=0, Total=210 [2020-09-04 15:35:49,369 INFO L87 Difference]: Start difference. First operand 1781 states and 2046 transitions. Second operand 15 states. [2020-09-04 15:35:50,007 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:50,308 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:35:50,605 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:35:50,905 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:51,194 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:35:52,340 WARN L193 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:35:52,646 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:52,966 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:35:53,305 WARN L193 SmtUtils]: Spent 265.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:35:53,602 WARN L193 SmtUtils]: Spent 253.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-09-04 15:35:55,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:35:55,755 INFO L93 Difference]: Finished difference Result 3367 states and 4028 transitions. [2020-09-04 15:35:55,760 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2020-09-04 15:35:55,760 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 290 [2020-09-04 15:35:55,761 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:35:55,770 INFO L225 Difference]: With dead ends: 3367 [2020-09-04 15:35:55,771 INFO L226 Difference]: Without dead ends: 1696 [2020-09-04 15:35:55,777 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 84 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 26 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 66 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=172, Invalid=584, Unknown=0, NotChecked=0, Total=756 [2020-09-04 15:35:55,779 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1696 states. [2020-09-04 15:35:56,452 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1696 to 1464. [2020-09-04 15:35:56,453 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1464 states. [2020-09-04 15:35:56,458 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1464 states to 1464 states and 1661 transitions. [2020-09-04 15:35:56,459 INFO L78 Accepts]: Start accepts. Automaton has 1464 states and 1661 transitions. Word has length 290 [2020-09-04 15:35:56,460 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:35:56,460 INFO L479 AbstractCegarLoop]: Abstraction has 1464 states and 1661 transitions. [2020-09-04 15:35:56,460 INFO L480 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-09-04 15:35:56,460 INFO L276 IsEmpty]: Start isEmpty. Operand 1464 states and 1661 transitions. [2020-09-04 15:35:56,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 296 [2020-09-04 15:35:56,468 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:35:56,469 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 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] [2020-09-04 15:35:56,469 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-09-04 15:35:56,470 INFO L427 AbstractCegarLoop]: === Iteration 9 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:35:56,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:35:56,470 INFO L82 PathProgramCache]: Analyzing trace with hash 722441679, now seen corresponding path program 1 times [2020-09-04 15:35:56,471 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:35:56,471 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [438205916] [2020-09-04 15:35:56,472 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:35:56,489 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:35:56,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:56,955 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-09-04 15:35:56,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-09-04 15:35:56,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:56,989 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 83 [2020-09-04 15:35:56,989 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:56,991 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 86 [2020-09-04 15:35:56,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:56,992 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2020-09-04 15:35:56,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:56,994 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 99 [2020-09-04 15:35:56,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 116 [2020-09-04 15:35:57,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,026 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-09-04 15:35:57,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,041 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-09-04 15:35:57,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,080 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:57,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,094 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:57,097 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:57,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,123 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 3 [2020-09-04 15:35:57,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,130 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 26 [2020-09-04 15:35:57,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,138 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:57,139 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,141 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:57,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,144 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 19 [2020-09-04 15:35:57,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,152 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2020-09-04 15:35:57,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,158 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:57,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,166 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 227 [2020-09-04 15:35:57,168 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,175 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 233 [2020-09-04 15:35:57,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 239 [2020-09-04 15:35:57,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,218 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:57,219 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,221 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 1 [2020-09-04 15:35:57,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,223 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 20 [2020-09-04 15:35:57,224 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,227 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-09-04 15:35:57,228 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,229 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 273 [2020-09-04 15:35:57,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,268 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 283 [2020-09-04 15:35:57,269 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-09-04 15:35:57,353 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 15:35:57,353 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [438205916] [2020-09-04 15:35:57,353 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-09-04 15:35:57,354 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-09-04 15:35:57,354 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1324624] [2020-09-04 15:35:57,354 INFO L459 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-09-04 15:35:57,355 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-09-04 15:35:57,355 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-09-04 15:35:57,355 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=147, Unknown=0, NotChecked=0, Total=182 [2020-09-04 15:35:57,355 INFO L87 Difference]: Start difference. First operand 1464 states and 1661 transitions. Second operand 14 states. [2020-09-04 15:35:57,868 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:58,664 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:35:59,572 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:35:59,882 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:36:00,217 WARN L193 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:36:00,530 WARN L193 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:36:00,831 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:36:01,137 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-09-04 15:36:01,442 WARN L193 SmtUtils]: Spent 262.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:36:01,773 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:36:02,123 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification that was a NOOP. DAG size: 191 [2020-09-04 15:36:02,450 WARN L193 SmtUtils]: Spent 263.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-09-04 15:36:05,540 WARN L193 SmtUtils]: Spent 254.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-09-04 15:36:05,829 WARN L193 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-09-04 15:36:07,379 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-09-04 15:36:07,379 INFO L93 Difference]: Finished difference Result 3704 states and 4580 transitions. [2020-09-04 15:36:07,380 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 42 states. [2020-09-04 15:36:07,380 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 295 [2020-09-04 15:36:07,380 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-09-04 15:36:07,394 INFO L225 Difference]: With dead ends: 3704 [2020-09-04 15:36:07,394 INFO L226 Difference]: Without dead ends: 2580 [2020-09-04 15:36:07,399 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 120 GetRequests, 68 SyntacticMatches, 6 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 657 ImplicationChecksByTransitivity, 4.7s TimeCoverageRelationStatistics Valid=617, Invalid=1639, Unknown=0, NotChecked=0, Total=2256 [2020-09-04 15:36:07,402 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 2580 states. [2020-09-04 15:36:08,287 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 2580 to 1923. [2020-09-04 15:36:08,287 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1923 states. [2020-09-04 15:36:08,292 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1923 states to 1923 states and 2216 transitions. [2020-09-04 15:36:08,293 INFO L78 Accepts]: Start accepts. Automaton has 1923 states and 2216 transitions. Word has length 295 [2020-09-04 15:36:08,294 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-09-04 15:36:08,294 INFO L479 AbstractCegarLoop]: Abstraction has 1923 states and 2216 transitions. [2020-09-04 15:36:08,294 INFO L480 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-09-04 15:36:08,294 INFO L276 IsEmpty]: Start isEmpty. Operand 1923 states and 2216 transitions. [2020-09-04 15:36:08,299 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 370 [2020-09-04 15:36:08,300 INFO L414 BasicCegarLoop]: Found error trace [2020-09-04 15:36:08,300 INFO L422 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 15:36:08,300 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2020-09-04 15:36:08,301 INFO L427 AbstractCegarLoop]: === Iteration 10 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-09-04 15:36:08,301 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-09-04 15:36:08,301 INFO L82 PathProgramCache]: Analyzing trace with hash -1293487728, now seen corresponding path program 2 times [2020-09-04 15:36:08,301 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-09-04 15:36:08,301 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1697084357] [2020-09-04 15:36:08,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-09-04 15:36:08,326 INFO L283 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-09-04 15:36:08,452 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:36:08,452 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:36:08,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-09-04 15:36:08,576 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-09-04 15:36:09,183 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-09-04 15:36:09,183 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-09-04 15:36:09,185 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2020-09-04 15:36:09,250 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 04.09 03:36:09 BoogieIcfgContainer [2020-09-04 15:36:09,250 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-09-04 15:36:09,253 INFO L168 Benchmark]: Toolchain (without parser) took 79491.00 ms. Allocated memory was 137.9 MB in the beginning and 1.5 GB in the end (delta: 1.3 GB). Free memory was 101.1 MB in the beginning and 1.0 GB in the end (delta: -941.7 MB). Peak memory consumption was 400.5 MB. Max. memory is 7.1 GB. [2020-09-04 15:36:09,254 INFO L168 Benchmark]: CDTParser took 0.83 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. [2020-09-04 15:36:09,258 INFO L168 Benchmark]: CACSL2BoogieTranslator took 767.93 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 168.8 MB in the end (delta: -67.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. [2020-09-04 15:36:09,260 INFO L168 Benchmark]: Boogie Preprocessor took 98.65 ms. Allocated memory is still 201.3 MB. Free memory was 168.8 MB in the beginning and 164.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. [2020-09-04 15:36:09,267 INFO L168 Benchmark]: RCFGBuilder took 1349.53 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 164.6 MB in the beginning and 172.4 MB in the end (delta: -7.8 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. [2020-09-04 15:36:09,268 INFO L168 Benchmark]: TraceAbstraction took 77266.96 ms. Allocated memory was 232.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 172.4 MB in the beginning and 1.0 GB in the end (delta: -870.4 MB). Peak memory consumption was 377.4 MB. Max. memory is 7.1 GB. [2020-09-04 15:36:09,274 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.83 ms. Allocated memory is still 137.9 MB. Free memory was 120.5 MB in the beginning and 120.2 MB in the end (delta: 209.8 kB). There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 767.93 ms. Allocated memory was 137.9 MB in the beginning and 201.3 MB in the end (delta: 63.4 MB). Free memory was 100.9 MB in the beginning and 168.8 MB in the end (delta: -67.8 MB). Peak memory consumption was 26.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 98.65 ms. Allocated memory is still 201.3 MB. Free memory was 168.8 MB in the beginning and 164.6 MB in the end (delta: 4.2 MB). Peak memory consumption was 4.2 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1349.53 ms. Allocated memory was 201.3 MB in the beginning and 232.3 MB in the end (delta: 30.9 MB). Free memory was 164.6 MB in the beginning and 172.4 MB in the end (delta: -7.8 MB). Peak memory consumption was 85.3 MB. Max. memory is 7.1 GB. * TraceAbstraction took 77266.96 ms. Allocated memory was 232.3 MB in the beginning and 1.5 GB in the end (delta: 1.2 GB). Free memory was 172.4 MB in the beginning and 1.0 GB in the end (delta: -870.4 MB). Peak memory consumption was 377.4 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 439]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L238] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L444] int cleanupTimeShifts = 4; [L556] int pumpRunning = 0; [L557] int systemActive = 1; [L774] int waterLevel = 1; [L775] int methaneLevelCritical = 0; [L525] int retValue_acc ; [L526] int tmp ; [L530] FCALL select_helpers() [L531] FCALL select_features() [L532] CALL, EXPR valid_product() [L963] int retValue_acc ; [L966] retValue_acc = 1 [L967] return (retValue_acc); [L532] RET, EXPR valid_product() [L532] tmp = valid_product() [L534] COND TRUE \read(tmp) [L536] FCALL setup() [L537] CALL runTest() [L516] CALL test() [L869] int splverifierCounter ; [L870] int tmp ; [L871] int tmp___0 ; [L872] int tmp___1 ; [L873] int tmp___2 ; [L876] splverifierCounter = 0 [L878] COND TRUE 1 [L880] COND TRUE splverifierCounter < 4 [L886] tmp = __VERIFIER_nondet_int() [L888] COND TRUE \read(tmp) [L890] CALL waterRise() [L792] COND TRUE waterLevel < 2 [L793] waterLevel = waterLevel + 1 [L890] RET waterRise() [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L910] CALL startSystem() [L769] systemActive = 1 [L910] RET startSystem() [L925] CALL timeShift() [L563] COND FALSE !(\read(pumpRunning)) [L570] COND TRUE \read(systemActive) [L572] CALL processEnvironment() [L618] int tmp ; [L621] COND FALSE !(\read(pumpRunning)) [L636] CALL processEnvironment__wrappee__methaneQuery() [L592] int tmp ; [L595] COND TRUE ! pumpRunning [L597] CALL, EXPR isHighWaterLevel() [L732] int retValue_acc ; [L733] int tmp ; [L734] int tmp___0 ; [L738] CALL, EXPR isHighWaterSensorDry() [L854] int retValue_acc ; [L857] COND FALSE !(waterLevel < 2) [L861] retValue_acc = 0 [L862] return (retValue_acc); [L738] RET, EXPR isHighWaterSensorDry() [L738] tmp = isHighWaterSensorDry() [L740] COND FALSE !(\read(tmp)) [L743] tmp___0 = 1 [L745] retValue_acc = tmp___0 [L746] return (retValue_acc); [L597] RET, EXPR isHighWaterLevel() [L597] tmp = isHighWaterLevel() [L599] COND TRUE \read(tmp) [L601] CALL activatePump() [L651] int tmp ; [L655] CALL, EXPR isMethaneAlarm() [L676] int retValue_acc ; [L680] CALL, EXPR isMethaneLevelCritical() [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); [L680] RET, EXPR isMethaneLevelCritical() [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); [L655] RET, EXPR isMethaneAlarm() [L655] tmp = isMethaneAlarm() [L657] COND FALSE !(\read(tmp)) [L661] CALL activatePump__wrappee__highWaterSensor() [L646] pumpRunning = 1 [L661] RET activatePump__wrappee__highWaterSensor() [L601] RET activatePump() [L636] RET processEnvironment__wrappee__methaneQuery() [L572] RET processEnvironment() [L578] CALL __utac_acc__Specification4_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR getWaterLevel() [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); [L49] RET, EXPR getWaterLevel() [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) [L578] RET __utac_acc__Specification4_spec__1() [L925] RET timeShift() [L878] COND TRUE 1 [L880] COND TRUE splverifierCounter < 4 [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L910] CALL startSystem() [L769] systemActive = 1 [L910] RET startSystem() [L925] CALL timeShift() [L563] COND TRUE \read(pumpRunning) [L565] CALL lowerWaterLevel() [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 [L565] RET lowerWaterLevel() [L570] COND TRUE \read(systemActive) [L572] CALL processEnvironment() [L618] int tmp ; [L621] COND TRUE \read(pumpRunning) [L623] CALL, EXPR isMethaneAlarm() [L676] int retValue_acc ; [L680] CALL, EXPR isMethaneLevelCritical() [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); [L680] RET, EXPR isMethaneLevelCritical() [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); [L623] RET, EXPR isMethaneAlarm() [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) [L631] CALL processEnvironment__wrappee__methaneQuery() [L592] int tmp ; [L595] COND FALSE !(! pumpRunning) [L610] FCALL processEnvironment__wrappee__base() [L631] RET processEnvironment__wrappee__methaneQuery() [L572] RET processEnvironment() [L578] CALL __utac_acc__Specification4_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR getWaterLevel() [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); [L49] RET, EXPR getWaterLevel() [L49] tmp = getWaterLevel() [L51] COND FALSE !(tmp == 0) [L578] RET __utac_acc__Specification4_spec__1() [L925] RET timeShift() [L878] COND TRUE 1 [L880] COND TRUE splverifierCounter < 4 [L886] tmp = __VERIFIER_nondet_int() [L888] COND FALSE !(\read(tmp)) [L896] tmp___0 = __VERIFIER_nondet_int() [L898] COND FALSE !(\read(tmp___0)) [L906] tmp___2 = __VERIFIER_nondet_int() [L908] COND TRUE \read(tmp___2) [L910] CALL startSystem() [L769] systemActive = 1 [L910] RET startSystem() [L925] CALL timeShift() [L563] COND TRUE \read(pumpRunning) [L565] CALL lowerWaterLevel() [L780] COND TRUE waterLevel > 0 [L781] waterLevel = waterLevel - 1 [L565] RET lowerWaterLevel() [L570] COND TRUE \read(systemActive) [L572] CALL processEnvironment() [L618] int tmp ; [L621] COND TRUE \read(pumpRunning) [L623] CALL, EXPR isMethaneAlarm() [L676] int retValue_acc ; [L680] CALL, EXPR isMethaneLevelCritical() [L813] int retValue_acc ; [L816] retValue_acc = methaneLevelCritical [L817] return (retValue_acc); [L680] RET, EXPR isMethaneLevelCritical() [L680] retValue_acc = isMethaneLevelCritical() [L682] return (retValue_acc); [L623] RET, EXPR isMethaneAlarm() [L623] tmp = isMethaneAlarm() [L625] COND FALSE !(\read(tmp)) [L631] CALL processEnvironment__wrappee__methaneQuery() [L592] int tmp ; [L595] COND FALSE !(! pumpRunning) [L610] FCALL processEnvironment__wrappee__base() [L631] RET processEnvironment__wrappee__methaneQuery() [L572] RET processEnvironment() [L578] CALL __utac_acc__Specification4_spec__1() [L44] int tmp ; [L45] int tmp___0 ; [L49] CALL, EXPR getWaterLevel() [L845] int retValue_acc ; [L848] retValue_acc = waterLevel [L849] return (retValue_acc); [L49] RET, EXPR getWaterLevel() [L49] tmp = getWaterLevel() [L51] COND TRUE tmp == 0 [L53] CALL, EXPR isPumpRunning() [L687] int retValue_acc ; [L690] retValue_acc = pumpRunning [L691] return (retValue_acc); [L53] RET, EXPR isPumpRunning() [L53] tmp___0 = isPumpRunning() [L55] COND TRUE \read(tmp___0) [L57] CALL __automaton_fail() [L439] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 637 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 77.1s, OverallIterations: 10, TraceHistogramMax: 3, AutomataDifference: 64.9s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 2478 SDtfs, 8378 SDslu, 6346 SDs, 0 SdLazy, 15650 SolverSat, 3184 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 26.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 535 GetRequests, 311 SyntacticMatches, 8 SemanticMatches, 216 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1971 ImplicationChecksByTransitivity, 30.7s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1923occurred 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: 4.3s AutomataMinimizationTime, 9 MinimizatonAttempts, 1905 StatesRemovedByMinimization, 9 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...