/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.1.25-86f66a4 [2020-07-07 12:33:07,292 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-07 12:33:07,295 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-07 12:33:07,313 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-07 12:33:07,313 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-07 12:33:07,315 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-07 12:33:07,317 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-07 12:33:07,330 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-07 12:33:07,332 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-07 12:33:07,333 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-07 12:33:07,334 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-07 12:33:07,336 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-07 12:33:07,337 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-07 12:33:07,338 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-07 12:33:07,339 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-07 12:33:07,340 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-07 12:33:07,341 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-07 12:33:07,341 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-07 12:33:07,343 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-07 12:33:07,345 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-07 12:33:07,346 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-07 12:33:07,347 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-07 12:33:07,348 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-07 12:33:07,349 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-07 12:33:07,351 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-07 12:33:07,351 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-07 12:33:07,351 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-07 12:33:07,352 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-07 12:33:07,352 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-07 12:33:07,353 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-07 12:33:07,354 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-07 12:33:07,354 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-07 12:33:07,355 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-07 12:33:07,356 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-07 12:33:07,357 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-07 12:33:07,357 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-07 12:33:07,358 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-07 12:33:07,358 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-07 12:33:07,358 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-07 12:33:07,359 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-07 12:33:07,360 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-07 12:33:07,361 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-07-07 12:33:07,369 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-07 12:33:07,370 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-07 12:33:07,371 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-07 12:33:07,371 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-07 12:33:07,371 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-07 12:33:07,372 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-07 12:33:07,372 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-07 12:33:07,372 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-07 12:33:07,372 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-07 12:33:07,372 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-07 12:33:07,373 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-07 12:33:07,373 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-07 12:33:07,373 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-07 12:33:07,373 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-07 12:33:07,373 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-07 12:33:07,374 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-07-07 12:33:07,374 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-07 12:33:07,374 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-07 12:33:07,374 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:33:07,374 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-07 12:33:07,375 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-07-07 12:33:07,375 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-07 12:33:07,375 INFO L138 SettingsManager]: * Use separate solver for trace checks=false [2020-07-07 12:33:07,666 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-07 12:33:07,676 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-07 12:33:07,679 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-07 12:33:07,680 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-07 12:33:07,681 INFO L275 PluginConnector]: CDTParser initialized [2020-07-07 12:33:07,682 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c [2020-07-07 12:33:07,745 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7519c1532/80479c641aa540c5805e52f3a369a41a/FLAGd052ed1e0 [2020-07-07 12:33:08,320 INFO L306 CDTParser]: Found 1 translation units. [2020-07-07 12:33:08,320 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product19.cil.c [2020-07-07 12:33:08,333 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7519c1532/80479c641aa540c5805e52f3a369a41a/FLAGd052ed1e0 [2020-07-07 12:33:08,592 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/7519c1532/80479c641aa540c5805e52f3a369a41a [2020-07-07 12:33:08,601 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-07 12:33:08,603 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-07-07 12:33:08,604 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:08,605 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-07 12:33:08,608 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-07 12:33:08,609 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:08" (1/1) ... [2020-07-07 12:33:08,611 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4ba55d66 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:08, skipping insertion in model container [2020-07-07 12:33:08,612 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.07 12:33:08" (1/1) ... [2020-07-07 12:33:08,618 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-07 12:33:08,667 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-07 12:33:09,025 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:09,140 INFO L203 MainTranslator]: Completed pre-run [2020-07-07 12:33:09,227 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-07 12:33:09,260 INFO L208 MainTranslator]: Completed translation [2020-07-07 12:33:09,260 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:09 WrapperNode [2020-07-07 12:33:09,261 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-07 12:33:09,261 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-07 12:33:09,261 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-07 12:33:09,262 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-07 12:33:09,276 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:09" (1/1) ... [2020-07-07 12:33:09,276 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:09" (1/1) ... [2020-07-07 12:33:09,301 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:09" (1/1) ... [2020-07-07 12:33:09,301 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:09" (1/1) ... [2020-07-07 12:33:09,347 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:09" (1/1) ... [2020-07-07 12:33:09,358 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:09" (1/1) ... [2020-07-07 12:33:09,363 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:09" (1/1) ... [2020-07-07 12:33:09,370 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-07 12:33:09,371 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-07 12:33:09,371 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-07 12:33:09,371 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-07 12:33:09,372 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:09" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-07 12:33:09,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-07-07 12:33:09,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-07 12:33:09,439 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:09,439 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-07-07 12:33:09,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-07-07 12:33:09,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-07-07 12:33:09,440 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-07-07 12:33:09,440 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-07-07 12:33:09,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:09,440 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:09,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:09,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:09,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-07-07 12:33:09,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-07-07 12:33:09,441 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-07-07 12:33:09,441 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-07-07 12:33:09,442 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-07-07 12:33:09,442 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-07-07 12:33:09,442 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-07-07 12:33:09,442 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-07-07 12:33:09,442 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-07-07 12:33:09,443 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-07-07 12:33:09,443 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-07-07 12:33:09,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-07-07 12:33:09,443 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-07-07 12:33:09,443 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-07-07 12:33:09,443 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-07-07 12:33:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-07-07 12:33:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-07-07 12:33:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-07-07 12:33:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-07-07 12:33:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-07-07 12:33:09,444 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-07-07 12:33:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-07-07 12:33:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-07-07 12:33:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-07-07 12:33:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-07-07 12:33:09,445 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-07-07 12:33:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_error [2020-07-07 12:33:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-07-07 12:33:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-07-07 12:33:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-07-07 12:33:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-07-07 12:33:09,446 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-07-07 12:33:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-07-07 12:33:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-07-07 12:33:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-07-07 12:33:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-07-07 12:33:09,447 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-07-07 12:33:09,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-07-07 12:33:09,448 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-07-07 12:33:09,448 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-07-07 12:33:09,448 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-07-07 12:33:09,448 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-07-07 12:33:09,448 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-07-07 12:33:09,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-07-07 12:33:09,449 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-07 12:33:09,449 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-07-07 12:33:09,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-07-07 12:33:09,449 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-07 12:33:09,449 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-07-07 12:33:09,449 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-07-07 12:33:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-07-07 12:33:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-07-07 12:33:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-07-07 12:33:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-07 12:33:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-07-07 12:33:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-07-07 12:33:09,450 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-07-07 12:33:09,451 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-07-07 12:33:09,451 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-07-07 12:33:09,451 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-07-07 12:33:09,451 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-07-07 12:33:09,451 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-07-07 12:33:09,451 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-07-07 12:33:09,452 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-07-07 12:33:09,452 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-07-07 12:33:09,452 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-07-07 12:33:09,452 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-07-07 12:33:09,452 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-07-07 12:33:09,452 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-07-07 12:33:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-07-07 12:33:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-07-07 12:33:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-07-07 12:33:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-07-07 12:33:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-07-07 12:33:09,453 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-07-07 12:33:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-07-07 12:33:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-07-07 12:33:09,454 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-07 12:33:10,565 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-07 12:33:10,565 INFO L295 CfgBuilder]: Removed 5 assume(true) statements. [2020-07-07 12:33:10,572 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:10 BoogieIcfgContainer [2020-07-07 12:33:10,572 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-07 12:33:10,573 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-07 12:33:10,573 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-07 12:33:10,576 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-07 12:33:10,577 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.07 12:33:08" (1/3) ... [2020-07-07 12:33:10,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e64f006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:10, skipping insertion in model container [2020-07-07 12:33:10,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.07 12:33:09" (2/3) ... [2020-07-07 12:33:10,578 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e64f006 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.07 12:33:10, skipping insertion in model container [2020-07-07 12:33:10,578 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.07 12:33:10" (3/3) ... [2020-07-07 12:33:10,580 INFO L109 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product19.cil.c [2020-07-07 12:33:10,591 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-07-07 12:33:10,599 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-07 12:33:10,613 INFO L251 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2020-07-07 12:33:10,635 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-07 12:33:10,636 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-07 12:33:10,636 INFO L377 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-07-07 12:33:10,636 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-07 12:33:10,636 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-07 12:33:10,636 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-07 12:33:10,637 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-07 12:33:10,637 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-07 12:33:10,657 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-07 12:33:10,677 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 154 [2020-07-07 12:33:10,677 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:10,679 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:10,679 INFO L427 AbstractCegarLoop]: === Iteration 1 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:10,685 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:10,686 INFO L82 PathProgramCache]: Analyzing trace with hash 2041023672, now seen corresponding path program 1 times [2020-07-07 12:33:10,693 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:10,693 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1592589803] [2020-07-07 12:33:10,693 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:10,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:11,360 WARN L193 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:11,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:11,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:11,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:11,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:11,492 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:11,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:11,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:11,503 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:11,538 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:11,539 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:11,541 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1592589803] [2020-07-07 12:33:11,543 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:11,544 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-07 12:33:11,544 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [507856966] [2020-07-07 12:33:11,553 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-07 12:33:11,554 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:11,568 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-07 12:33:11,569 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:11,571 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-07 12:33:12,959 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:12,959 INFO L93 Difference]: Finished difference Result 449 states and 536 transitions. [2020-07-07 12:33:12,960 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-07 12:33:12,962 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 153 [2020-07-07 12:33:12,963 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:12,979 INFO L225 Difference]: With dead ends: 449 [2020-07-07 12:33:12,979 INFO L226 Difference]: Without dead ends: 282 [2020-07-07 12:33:12,985 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-07 12:33:13,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2020-07-07 12:33:13,125 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 241. [2020-07-07 12:33:13,126 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-07-07 12:33:13,132 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 261 transitions. [2020-07-07 12:33:13,136 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 261 transitions. Word has length 153 [2020-07-07 12:33:13,139 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:13,139 INFO L479 AbstractCegarLoop]: Abstraction has 241 states and 261 transitions. [2020-07-07 12:33:13,139 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-07 12:33:13,139 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 261 transitions. [2020-07-07 12:33:13,151 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 155 [2020-07-07 12:33:13,151 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:13,152 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:13,152 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-07 12:33:13,153 INFO L427 AbstractCegarLoop]: === Iteration 2 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:13,153 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:13,153 INFO L82 PathProgramCache]: Analyzing trace with hash -1489723473, now seen corresponding path program 1 times [2020-07-07 12:33:13,153 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:13,154 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [166809946] [2020-07-07 12:33:13,154 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:13,251 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,599 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:13,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,655 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,657 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:13,724 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:13,724 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:13,724 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [166809946] [2020-07-07 12:33:13,725 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:13,725 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-07 12:33:13,725 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527866790] [2020-07-07 12:33:13,726 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-07 12:33:13,726 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:13,726 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-07 12:33:13,727 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-07 12:33:13,727 INFO L87 Difference]: Start difference. First operand 241 states and 261 transitions. Second operand 4 states. [2020-07-07 12:33:14,326 WARN L193 SmtUtils]: Spent 201.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:15,079 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:15,079 INFO L93 Difference]: Finished difference Result 360 states and 403 transitions. [2020-07-07 12:33:15,080 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-07 12:33:15,080 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 154 [2020-07-07 12:33:15,081 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:15,085 INFO L225 Difference]: With dead ends: 360 [2020-07-07 12:33:15,086 INFO L226 Difference]: Without dead ends: 265 [2020-07-07 12:33:15,088 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-07 12:33:15,089 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 265 states. [2020-07-07 12:33:15,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 265 to 231. [2020-07-07 12:33:15,159 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 231 states. [2020-07-07 12:33:15,161 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 231 states to 231 states and 248 transitions. [2020-07-07 12:33:15,161 INFO L78 Accepts]: Start accepts. Automaton has 231 states and 248 transitions. Word has length 154 [2020-07-07 12:33:15,162 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:15,162 INFO L479 AbstractCegarLoop]: Abstraction has 231 states and 248 transitions. [2020-07-07 12:33:15,162 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-07 12:33:15,162 INFO L276 IsEmpty]: Start isEmpty. Operand 231 states and 248 transitions. [2020-07-07 12:33:15,165 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 164 [2020-07-07 12:33:15,165 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:15,165 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:15,165 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-07 12:33:15,166 INFO L427 AbstractCegarLoop]: === Iteration 3 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:15,166 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:15,166 INFO L82 PathProgramCache]: Analyzing trace with hash -2140088415, now seen corresponding path program 1 times [2020-07-07 12:33:15,166 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:15,167 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [781196998] [2020-07-07 12:33:15,167 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:15,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,572 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:15,595 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,635 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,682 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,685 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:15,734 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:15,734 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:15,735 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [781196998] [2020-07-07 12:33:15,735 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:15,735 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:15,736 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1303978813] [2020-07-07 12:33:15,737 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:15,737 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:15,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:15,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:15,738 INFO L87 Difference]: Start difference. First operand 231 states and 248 transitions. Second operand 9 states. [2020-07-07 12:33:16,323 WARN L193 SmtUtils]: Spent 252.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:16,632 WARN L193 SmtUtils]: Spent 200.00 ms on a formula simplification that was a NOOP. DAG size: 189 [2020-07-07 12:33:16,871 WARN L193 SmtUtils]: Spent 223.00 ms on a formula simplification that was a NOOP. DAG size: 193 [2020-07-07 12:33:17,116 WARN L193 SmtUtils]: Spent 208.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:17,349 WARN L193 SmtUtils]: Spent 206.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:17,586 WARN L193 SmtUtils]: Spent 209.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:18,576 WARN L193 SmtUtils]: Spent 216.00 ms on a formula simplification that was a NOOP. DAG size: 187 [2020-07-07 12:33:20,197 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:20,198 INFO L93 Difference]: Finished difference Result 611 states and 701 transitions. [2020-07-07 12:33:20,198 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-07-07 12:33:20,198 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 163 [2020-07-07 12:33:20,199 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:20,204 INFO L225 Difference]: With dead ends: 611 [2020-07-07 12:33:20,204 INFO L226 Difference]: Without dead ends: 490 [2020-07-07 12:33:20,206 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-07-07 12:33:20,207 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 490 states. [2020-07-07 12:33:20,381 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 490 to 427. [2020-07-07 12:33:20,382 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 427 states. [2020-07-07 12:33:20,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 427 states to 427 states and 476 transitions. [2020-07-07 12:33:20,385 INFO L78 Accepts]: Start accepts. Automaton has 427 states and 476 transitions. Word has length 163 [2020-07-07 12:33:20,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:20,385 INFO L479 AbstractCegarLoop]: Abstraction has 427 states and 476 transitions. [2020-07-07 12:33:20,385 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:33:20,386 INFO L276 IsEmpty]: Start isEmpty. Operand 427 states and 476 transitions. [2020-07-07 12:33:20,388 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 172 [2020-07-07 12:33:20,388 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:20,389 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:20,389 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-07 12:33:20,389 INFO L427 AbstractCegarLoop]: === Iteration 4 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:20,389 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:20,390 INFO L82 PathProgramCache]: Analyzing trace with hash -720243162, now seen corresponding path program 1 times [2020-07-07 12:33:20,390 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:20,390 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1839298490] [2020-07-07 12:33:20,390 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:20,422 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:20,703 WARN L193 SmtUtils]: Spent 212.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:20,726 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:20,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:20,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:20,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:20,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:20,776 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:20,778 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:20,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:20,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:20,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:20,858 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:20,858 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:20,859 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1839298490] [2020-07-07 12:33:20,859 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:20,859 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-07-07 12:33:20,860 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [30005055] [2020-07-07 12:33:20,860 INFO L459 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-07-07 12:33:20,860 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:20,860 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-07-07 12:33:20,861 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-07-07 12:33:20,861 INFO L87 Difference]: Start difference. First operand 427 states and 476 transitions. Second operand 9 states. [2020-07-07 12:33:21,302 WARN L193 SmtUtils]: Spent 187.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:22,898 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:23,170 WARN L193 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:23,527 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:23,781 WARN L193 SmtUtils]: Spent 196.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:24,013 WARN L193 SmtUtils]: Spent 205.00 ms on a formula simplification that was a NOOP. DAG size: 190 [2020-07-07 12:33:24,231 WARN L193 SmtUtils]: Spent 194.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:24,483 WARN L193 SmtUtils]: Spent 198.00 ms on a formula simplification that was a NOOP. DAG size: 188 [2020-07-07 12:33:25,129 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:25,130 INFO L93 Difference]: Finished difference Result 1228 states and 1519 transitions. [2020-07-07 12:33:25,131 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-07-07 12:33:25,131 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 171 [2020-07-07 12:33:25,132 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:25,139 INFO L225 Difference]: With dead ends: 1228 [2020-07-07 12:33:25,140 INFO L226 Difference]: Without dead ends: 911 [2020-07-07 12:33:25,143 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 1.9s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-07-07 12:33:25,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 911 states. [2020-07-07 12:33:25,379 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 911 to 723. [2020-07-07 12:33:25,380 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 723 states. [2020-07-07 12:33:25,384 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 723 states to 723 states and 829 transitions. [2020-07-07 12:33:25,385 INFO L78 Accepts]: Start accepts. Automaton has 723 states and 829 transitions. Word has length 171 [2020-07-07 12:33:25,385 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:25,385 INFO L479 AbstractCegarLoop]: Abstraction has 723 states and 829 transitions. [2020-07-07 12:33:25,386 INFO L480 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-07-07 12:33:25,386 INFO L276 IsEmpty]: Start isEmpty. Operand 723 states and 829 transitions. [2020-07-07 12:33:25,390 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 182 [2020-07-07 12:33:25,390 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:25,390 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:25,391 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-07 12:33:25,391 INFO L427 AbstractCegarLoop]: === Iteration 5 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:25,391 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:25,392 INFO L82 PathProgramCache]: Analyzing trace with hash -2132028994, now seen corresponding path program 1 times [2020-07-07 12:33:25,392 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:25,392 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [202120796] [2020-07-07 12:33:25,392 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:25,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,641 WARN L193 SmtUtils]: Spent 174.00 ms on a formula simplification that was a NOOP. DAG size: 184 [2020-07-07 12:33:25,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,718 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,720 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,722 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,725 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,737 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,739 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-07 12:33:25,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-07 12:33:25,823 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:25,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [202120796] [2020-07-07 12:33:25,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-07 12:33:25,824 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-07-07 12:33:25,824 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1178468484] [2020-07-07 12:33:25,824 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-07 12:33:25,825 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-07-07 12:33:25,825 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-07 12:33:25,825 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-07-07 12:33:25,825 INFO L87 Difference]: Start difference. First operand 723 states and 829 transitions. Second operand 6 states. [2020-07-07 12:33:26,240 WARN L193 SmtUtils]: Spent 190.00 ms on a formula simplification that was a NOOP. DAG size: 186 [2020-07-07 12:33:26,940 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-07 12:33:26,940 INFO L93 Difference]: Finished difference Result 1185 states and 1400 transitions. [2020-07-07 12:33:26,941 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-07-07 12:33:26,941 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 181 [2020-07-07 12:33:26,941 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-07 12:33:26,946 INFO L225 Difference]: With dead ends: 1185 [2020-07-07 12:33:26,946 INFO L226 Difference]: Without dead ends: 572 [2020-07-07 12:33:26,949 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 37 GetRequests, 29 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=36, Invalid=54, Unknown=0, NotChecked=0, Total=90 [2020-07-07 12:33:26,950 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 572 states. [2020-07-07 12:33:27,198 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 572 to 542. [2020-07-07 12:33:27,198 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 542 states. [2020-07-07 12:33:27,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 542 states to 542 states and 593 transitions. [2020-07-07 12:33:27,202 INFO L78 Accepts]: Start accepts. Automaton has 542 states and 593 transitions. Word has length 181 [2020-07-07 12:33:27,203 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-07 12:33:27,203 INFO L479 AbstractCegarLoop]: Abstraction has 542 states and 593 transitions. [2020-07-07 12:33:27,203 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-07 12:33:27,203 INFO L276 IsEmpty]: Start isEmpty. Operand 542 states and 593 transitions. [2020-07-07 12:33:27,206 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 177 [2020-07-07 12:33:27,206 INFO L414 BasicCegarLoop]: Found error trace [2020-07-07 12:33:27,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-07 12:33:27,207 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-07 12:33:27,207 INFO L427 AbstractCegarLoop]: === Iteration 6 === [__automaton_failErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-07 12:33:27,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-07 12:33:27,207 INFO L82 PathProgramCache]: Analyzing trace with hash 466047794, now seen corresponding path program 1 times [2020-07-07 12:33:27,208 INFO L163 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-07-07 12:33:27,208 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [2051620621] [2020-07-07 12:33:27,209 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-07 12:33:27,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:33:27,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-07-07 12:33:27,541 INFO L185 leratedInterpolation]: Finished Analysing Program using PRECISE loop Acceleration [2020-07-07 12:33:27,541 INFO L174 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-07-07 12:33:27,541 INFO L520 BasicCegarLoop]: Counterexample might be feasible [2020-07-07 12:33:27,542 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-07 12:33:27,565 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.07 12:33:27 BoogieIcfgContainer [2020-07-07 12:33:27,565 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-07 12:33:27,567 INFO L168 Benchmark]: Toolchain (without parser) took 18963.67 ms. Allocated memory was 137.4 MB in the beginning and 623.4 MB in the end (delta: 486.0 MB). Free memory was 100.5 MB in the beginning and 473.8 MB in the end (delta: -373.3 MB). Peak memory consumption was 112.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:27,568 INFO L168 Benchmark]: CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. [2020-07-07 12:33:27,569 INFO L168 Benchmark]: CACSL2BoogieTranslator took 656.60 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.3 MB in the beginning and 172.3 MB in the end (delta: -71.9 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:27,569 INFO L168 Benchmark]: Boogie Preprocessor took 109.36 ms. Allocated memory is still 201.9 MB. Free memory was 172.3 MB in the beginning and 167.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:27,570 INFO L168 Benchmark]: RCFGBuilder took 1201.02 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 167.9 MB in the beginning and 179.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 87.5 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:27,571 INFO L168 Benchmark]: TraceAbstraction took 16991.78 ms. Allocated memory was 233.3 MB in the beginning and 623.4 MB in the end (delta: 390.1 MB). Free memory was 177.9 MB in the beginning and 473.8 MB in the end (delta: -295.9 MB). Peak memory consumption was 94.2 MB. Max. memory is 7.1 GB. [2020-07-07 12:33:27,575 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.25 ms. Allocated memory is still 137.4 MB. Free memory was 119.5 MB in the beginning and 119.3 MB in the end (delta: 210.0 kB). Peak memory consumption was 210.0 kB. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 656.60 ms. Allocated memory was 137.4 MB in the beginning and 201.9 MB in the end (delta: 64.5 MB). Free memory was 100.3 MB in the beginning and 172.3 MB in the end (delta: -71.9 MB). Peak memory consumption was 29.7 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 109.36 ms. Allocated memory is still 201.9 MB. Free memory was 172.3 MB in the beginning and 167.9 MB in the end (delta: 4.3 MB). Peak memory consumption was 4.3 MB. Max. memory is 7.1 GB. * RCFGBuilder took 1201.02 ms. Allocated memory was 201.9 MB in the beginning and 233.3 MB in the end (delta: 31.5 MB). Free memory was 167.9 MB in the beginning and 179.4 MB in the end (delta: -11.5 MB). Peak memory consumption was 87.5 MB. Max. memory is 7.1 GB. * TraceAbstraction took 16991.78 ms. Allocated memory was 233.3 MB in the beginning and 623.4 MB in the end (delta: 390.1 MB). Free memory was 177.9 MB in the beginning and 473.8 MB in the end (delta: -295.9 MB). Peak memory consumption was 94.2 MB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 44]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L293] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L490] int cleanupTimeShifts = 4; [L594] int waterLevel = 1; [L595] int methaneLevelCritical = 0; [L753] int pumpRunning = 0; [L754] int systemActive = 1; [L568] int retValue_acc ; [L569] int tmp ; [L573] FCALL select_helpers() [L574] FCALL select_features() [L575] CALL, EXPR valid_product() [L78] int retValue_acc ; [L81] retValue_acc = 1 [L82] return (retValue_acc); [L575] RET, EXPR valid_product() [L575] tmp = valid_product() [L577] COND TRUE \read(tmp) [L579] FCALL setup() [L580] CALL runTest() [L562] CALL test() [L685] int splverifierCounter ; [L686] int tmp ; [L687] int tmp___0 ; [L688] int tmp___1 ; [L689] int tmp___2 ; [L692] splverifierCounter = 0 [L694] COND TRUE 1 [L696] COND TRUE splverifierCounter < 4 [L702] tmp = __VERIFIER_nondet_int() [L704] COND TRUE \read(tmp) [L706] CALL waterRise() [L612] COND TRUE waterLevel < 2 [L613] waterLevel = waterLevel + 1 [L706] RET waterRise() [L712] tmp___0 = __VERIFIER_nondet_int() [L714] COND FALSE !(\read(tmp___0)) [L722] tmp___2 = __VERIFIER_nondet_int() [L724] COND TRUE \read(tmp___2) [L739] CALL timeShift() [L760] COND FALSE !(\read(pumpRunning)) [L767] COND TRUE \read(systemActive) [L769] CALL processEnvironment() [L789] int tmp ; [L792] COND FALSE !(\read(pumpRunning)) [L807] FCALL processEnvironment__wrappee__base() [L769] RET processEnvironment() [L775] CALL __utac_acc__Specification3_spec__1() [L91] int tmp ; [L92] int tmp___0 ; [L93] int tmp___1 ; [L97] CALL, EXPR isMethaneLevelCritical() [L633] int retValue_acc ; [L636] retValue_acc = methaneLevelCritical [L637] return (retValue_acc); [L97] RET, EXPR isMethaneLevelCritical() [L97] tmp = isMethaneLevelCritical() [L99] COND FALSE !(\read(tmp)) [L103] CALL, EXPR getWaterLevel() [L665] int retValue_acc ; [L668] retValue_acc = waterLevel [L669] return (retValue_acc); [L103] RET, EXPR getWaterLevel() [L103] tmp___0 = getWaterLevel() [L105] COND TRUE tmp___0 == 2 [L107] CALL, EXPR isPumpRunning() [L841] int retValue_acc ; [L844] retValue_acc = pumpRunning [L845] return (retValue_acc); [L107] RET, EXPR isPumpRunning() [L107] tmp___1 = isPumpRunning() [L109] COND FALSE !(\read(tmp___1)) [L113] CALL __automaton_fail() [L44] __VERIFIER_error() - StatisticsResult: Ultimate Automizer benchmark data CFG has 38 procedures, 615 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 16.9s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 12.6s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1070 SDtfs, 1799 SDslu, 1318 SDs, 0 SdLazy, 2846 SolverSat, 560 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.6s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 152 GetRequests, 110 SyntacticMatches, 0 SemanticMatches, 42 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 50 ImplicationChecksByTransitivity, 5.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=723occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.8s AutomataMinimizationTime, 5 MinimizatonAttempts, 356 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...