/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.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_product48.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:02:35,055 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:02:35,060 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:02:35,111 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:02:35,112 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:02:35,116 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:02:35,119 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:02:35,127 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:02:35,130 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:02:35,136 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:02:35,137 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:02:35,138 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:02:35,139 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:02:35,142 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:02:35,144 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:02:35,145 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:02:35,146 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:02:35,149 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:02:35,168 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:02:35,175 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:02:35,178 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:02:35,179 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:02:35,181 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:02:35,183 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:02:35,193 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:02:35,193 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:02:35,194 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:02:35,196 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:02:35,197 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:02:35,198 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:02:35,198 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:02:35,199 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:02:35,201 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:02:35,202 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:02:35,203 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:02:35,203 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:02:35,204 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:02:35,204 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:02:35,204 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:02:35,205 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:02:35,206 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:02:35,207 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-11-07 00:02:35,228 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:02:35,229 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:02:35,234 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:02:35,235 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:02:35,235 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:02:35,236 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:02:35,237 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:02:35,237 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:02:35,237 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:02:35,237 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:02:35,238 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:02:35,239 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:02:35,239 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:02:35,239 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:02:35,240 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:02:35,240 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:02:35,240 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:02:35,240 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:02:35,240 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:02:35,242 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:02:35,242 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:02:35,243 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:02:35,243 INFO L138 SettingsManager]: * Use separate solver for trace checks=false WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:02:35,619 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:02:35,656 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:02:35,659 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:02:35,661 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:02:35,661 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:02:35,662 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-11-07 00:02:35,736 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1d11c42d/755825f9515d4030821e10f6fd6065dc/FLAGc5e171f34 [2020-11-07 00:02:36,493 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:02:36,493 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product48.cil.c [2020-11-07 00:02:36,505 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1d11c42d/755825f9515d4030821e10f6fd6065dc/FLAGc5e171f34 [2020-11-07 00:02:36,723 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/a1d11c42d/755825f9515d4030821e10f6fd6065dc [2020-11-07 00:02:36,726 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:02:36,735 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:02:36,740 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:36,740 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:02:36,745 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:02:36,746 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:36" (1/1) ... [2020-11-07 00:02:36,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2a05d30f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:36, skipping insertion in model container [2020-11-07 00:02:36,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:02:36" (1/1) ... [2020-11-07 00:02:36,765 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:02:36,836 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:02:37,223 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:37,233 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:02:37,313 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:02:37,356 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:02:37,357 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37 WrapperNode [2020-11-07 00:02:37,357 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:02:37,358 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:02:37,358 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:02:37,358 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:02:37,372 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,373 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,391 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,391 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,448 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,466 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,478 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (1/1) ... [2020-11-07 00:02:37,507 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:02:37,508 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:02:37,509 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:02:37,509 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:02:37,512 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (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 [2020-11-07 00:02:37,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:02:37,614 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:02:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:02:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:02:37,615 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:02:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:02:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:02:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:02:37,616 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:02:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:02:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:02:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:02:37,617 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:02:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:02:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-11-07 00:02:37,618 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:02:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:02:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:02:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:02:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__highWaterSensor [2020-11-07 00:02:37,619 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:02:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:02:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:02:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:02:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:02:37,620 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-11-07 00:02:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:02:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 00:02:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:02:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:02:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:02:37,621 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:02:37,622 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:02:37,622 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:02:37,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:37,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:37,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:37,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:02:37,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:02:37,622 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:02:37,623 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:02:37,623 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:02:37,623 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:02:37,624 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:02:37,624 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:02:37,624 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:02:37,625 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:02:37,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:02:37,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:02:37,625 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:02:37,625 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:02:37,625 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:02:37,626 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:02:37,626 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:02:37,626 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:02:37,626 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:02:37,626 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:02:37,626 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:02:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:02:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-11-07 00:02:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:02:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:02:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:02:37,627 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:02:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:02:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 00:02:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:02:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:02:37,628 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-11-07 00:02:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__methaneQuery [2020-11-07 00:02:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:02:37,629 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__highWaterSensor [2020-11-07 00:02:37,630 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:02:37,630 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:02:37,630 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:02:37,630 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:02:37,630 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:02:37,631 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:02:37,631 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:02:37,632 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:02:37,632 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:02:37,632 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:02:37,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:02:37,632 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:02:37,634 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:02:37,634 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:02:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:02:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:02:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:02:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:02:37,635 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:02:37,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:02:37,636 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:02:37,636 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:02:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:02:37,637 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:02:39,140 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:02:39,141 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:02:39,144 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:39 BoogieIcfgContainer [2020-11-07 00:02:39,144 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:02:39,146 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:02:39,146 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:02:39,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:02:39,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:02:36" (1/3) ... [2020-11-07 00:02:39,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7104465e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:39, skipping insertion in model container [2020-11-07 00:02:39,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:02:37" (2/3) ... [2020-11-07 00:02:39,152 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7104465e and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:02:39, skipping insertion in model container [2020-11-07 00:02:39,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:02:39" (3/3) ... [2020-11-07 00:02:39,153 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product48.cil.c [2020-11-07 00:02:39,170 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:02:39,174 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:02:39,188 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:02:39,213 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:02:39,213 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:02:39,214 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:02:39,214 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:02:39,214 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:02:39,214 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:02:39,214 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:02:39,214 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:02:39,239 INFO L276 IsEmpty]: Start isEmpty. Operand 340 states. [2020-11-07 00:02:39,260 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:02:39,260 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:39,262 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] [2020-11-07 00:02:39,262 INFO L429 AbstractCegarLoop]: === Iteration 1 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:39,268 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:39,269 INFO L82 PathProgramCache]: Analyzing trace with hash 1147865747, now seen corresponding path program 1 times [2020-11-07 00:02:39,279 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:39,279 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [899210814] [2020-11-07 00:02:39,280 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:39,362 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:39,556 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,191 WARN L194 SmtUtils]: Spent 409.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:40,194 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:40,207 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,311 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:40,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:40,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,328 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:40,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,336 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:40,345 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,347 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:02:40,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,353 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:02:40,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,359 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:02:40,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:40,422 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:40,424 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [899210814] [2020-11-07 00:02:40,427 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:40,428 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:02:40,428 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1153930592] [2020-11-07 00:02:40,435 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:02:40,435 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:40,449 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:02:40,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:40,453 INFO L87 Difference]: Start difference. First operand 340 states. Second operand 3 states. [2020-11-07 00:02:42,099 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:42,100 INFO L93 Difference]: Finished difference Result 542 states and 646 transitions. [2020-11-07 00:02:42,101 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:02:42,102 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:02:42,103 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:42,119 INFO L225 Difference]: With dead ends: 542 [2020-11-07 00:02:42,119 INFO L226 Difference]: Without dead ends: 332 [2020-11-07 00:02:42,124 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:02:42,144 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 332 states. [2020-11-07 00:02:42,299 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 332 to 286. [2020-11-07 00:02:42,300 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 286 states. [2020-11-07 00:02:42,303 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 286 states to 286 states and 313 transitions. [2020-11-07 00:02:42,305 INFO L78 Accepts]: Start accepts. Automaton has 286 states and 313 transitions. Word has length 159 [2020-11-07 00:02:42,306 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:42,306 INFO L481 AbstractCegarLoop]: Abstraction has 286 states and 313 transitions. [2020-11-07 00:02:42,306 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:02:42,306 INFO L276 IsEmpty]: Start isEmpty. Operand 286 states and 313 transitions. [2020-11-07 00:02:42,311 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:02:42,311 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:42,311 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:02:42,312 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:02:42,312 INFO L429 AbstractCegarLoop]: === Iteration 2 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:42,313 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:42,313 INFO L82 PathProgramCache]: Analyzing trace with hash 1409742219, now seen corresponding path program 1 times [2020-11-07 00:02:42,313 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:42,313 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1656067650] [2020-11-07 00:02:42,314 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:42,317 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:42,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,725 WARN L194 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:42,727 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:42,736 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,774 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:42,775 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,776 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:42,777 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,778 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:42,779 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,781 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:42,782 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,783 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:02:42,784 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,785 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:02:42,786 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,787 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:02:42,788 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:42,838 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:42,839 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1656067650] [2020-11-07 00:02:42,839 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:42,839 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:02:42,840 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [196153647] [2020-11-07 00:02:42,842 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:02:42,843 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:42,846 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:02:42,846 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:02:42,846 INFO L87 Difference]: Start difference. First operand 286 states and 313 transitions. Second operand 4 states. [2020-11-07 00:02:43,525 WARN L194 SmtUtils]: Spent 238.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:44,718 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:44,719 INFO L93 Difference]: Finished difference Result 446 states and 505 transitions. [2020-11-07 00:02:44,719 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:02:44,720 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:02:44,721 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:44,725 INFO L225 Difference]: With dead ends: 446 [2020-11-07 00:02:44,725 INFO L226 Difference]: Without dead ends: 315 [2020-11-07 00:02:44,727 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:02:44,728 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 315 states. [2020-11-07 00:02:44,850 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 315 to 276. [2020-11-07 00:02:44,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 276 states. [2020-11-07 00:02:44,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 276 states to 276 states and 300 transitions. [2020-11-07 00:02:44,853 INFO L78 Accepts]: Start accepts. Automaton has 276 states and 300 transitions. Word has length 160 [2020-11-07 00:02:44,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:44,853 INFO L481 AbstractCegarLoop]: Abstraction has 276 states and 300 transitions. [2020-11-07 00:02:44,854 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:02:44,854 INFO L276 IsEmpty]: Start isEmpty. Operand 276 states and 300 transitions. [2020-11-07 00:02:44,856 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-07 00:02:44,856 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:44,857 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] [2020-11-07 00:02:44,857 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:02:44,857 INFO L429 AbstractCegarLoop]: === Iteration 3 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:44,858 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:44,858 INFO L82 PathProgramCache]: Analyzing trace with hash -947590794, now seen corresponding path program 1 times [2020-11-07 00:02:44,858 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:44,859 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1661708521] [2020-11-07 00:02:44,859 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:44,863 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:44,898 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,201 WARN L194 SmtUtils]: Spent 221.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:45,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:45,216 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,256 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:45,259 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,260 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:45,260 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,262 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:45,264 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,305 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:45,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,317 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:02:45,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,332 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:02:45,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,335 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:02:45,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,338 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:02:45,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:45,399 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:45,399 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1661708521] [2020-11-07 00:02:45,400 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:45,400 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:02:45,400 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [830411207] [2020-11-07 00:02:45,401 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:02:45,402 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:45,403 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:02:45,406 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:02:45,407 INFO L87 Difference]: Start difference. First operand 276 states and 300 transitions. Second operand 10 states. [2020-11-07 00:02:45,976 WARN L194 SmtUtils]: Spent 239.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:46,344 WARN L194 SmtUtils]: Spent 261.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:02:46,627 WARN L194 SmtUtils]: Spent 257.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 00:02:46,941 WARN L194 SmtUtils]: Spent 280.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:47,235 WARN L194 SmtUtils]: Spent 259.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:47,508 WARN L194 SmtUtils]: Spent 243.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:48,438 WARN L194 SmtUtils]: Spent 218.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:51,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:51,185 INFO L93 Difference]: Finished difference Result 769 states and 897 transitions. [2020-11-07 00:02:51,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 00:02:51,185 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-07 00:02:51,186 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:51,192 INFO L225 Difference]: With dead ends: 769 [2020-11-07 00:02:51,192 INFO L226 Difference]: Without dead ends: 608 [2020-11-07 00:02:51,195 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.1s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-11-07 00:02:51,196 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 608 states. [2020-11-07 00:02:51,449 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 608 to 507. [2020-11-07 00:02:51,450 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 507 states. [2020-11-07 00:02:51,459 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 507 states to 507 states and 570 transitions. [2020-11-07 00:02:51,460 INFO L78 Accepts]: Start accepts. Automaton has 507 states and 570 transitions. Word has length 173 [2020-11-07 00:02:51,462 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:51,462 INFO L481 AbstractCegarLoop]: Abstraction has 507 states and 570 transitions. [2020-11-07 00:02:51,462 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:02:51,462 INFO L276 IsEmpty]: Start isEmpty. Operand 507 states and 570 transitions. [2020-11-07 00:02:51,468 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:02:51,468 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:51,469 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] [2020-11-07 00:02:51,469 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:02:51,469 INFO L429 AbstractCegarLoop]: === Iteration 4 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:51,470 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:51,470 INFO L82 PathProgramCache]: Analyzing trace with hash -1018778722, now seen corresponding path program 1 times [2020-11-07 00:02:51,471 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:51,472 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [472519378] [2020-11-07 00:02:51,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:51,484 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:51,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:51,844 WARN L194 SmtUtils]: Spent 192.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:51,845 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:51,866 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:51,904 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:51,905 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:51,907 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:51,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:51,908 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:51,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:51,912 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:51,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:51,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:51,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:51,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:02:51,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:51,930 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:02:51,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:51,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:02:51,955 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:52,004 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:52,004 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [472519378] [2020-11-07 00:02:52,005 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:52,005 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:52,005 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1846878834] [2020-11-07 00:02:52,005 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:52,006 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:52,006 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:52,007 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:52,008 INFO L87 Difference]: Start difference. First operand 507 states and 570 transitions. Second operand 9 states. [2020-11-07 00:02:52,549 WARN L194 SmtUtils]: Spent 227.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:54,573 WARN L194 SmtUtils]: Spent 298.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:54,902 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:55,247 WARN L194 SmtUtils]: Spent 248.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:55,643 WARN L194 SmtUtils]: Spent 255.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:55,906 WARN L194 SmtUtils]: Spent 240.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:56,211 WARN L194 SmtUtils]: Spent 256.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:56,484 WARN L194 SmtUtils]: Spent 244.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:57,686 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:57,687 INFO L93 Difference]: Finished difference Result 1380 states and 1666 transitions. [2020-11-07 00:02:57,687 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:02:57,687 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:02:57,688 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:57,695 INFO L225 Difference]: With dead ends: 1380 [2020-11-07 00:02:57,695 INFO L226 Difference]: Without dead ends: 988 [2020-11-07 00:02:57,698 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 25 ImplicationChecksByTransitivity, 2.4s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:02:57,700 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 988 states. [2020-11-07 00:02:58,070 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 988 to 881. [2020-11-07 00:02:58,071 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 881 states. [2020-11-07 00:02:58,077 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 881 states to 881 states and 1015 transitions. [2020-11-07 00:02:58,078 INFO L78 Accepts]: Start accepts. Automaton has 881 states and 1015 transitions. Word has length 178 [2020-11-07 00:02:58,078 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:58,078 INFO L481 AbstractCegarLoop]: Abstraction has 881 states and 1015 transitions. [2020-11-07 00:02:58,078 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:02:58,079 INFO L276 IsEmpty]: Start isEmpty. Operand 881 states and 1015 transitions. [2020-11-07 00:02:58,083 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:02:58,084 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:58,084 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:02:58,084 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:02:58,084 INFO L429 AbstractCegarLoop]: === Iteration 5 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:02:58,085 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:58,085 INFO L82 PathProgramCache]: Analyzing trace with hash 1751850335, now seen corresponding path program 1 times [2020-11-07 00:02:58,085 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:58,086 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1695439918] [2020-11-07 00:02:58,086 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:58,089 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:58,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:58,423 WARN L194 SmtUtils]: Spent 260.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:58,425 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:58,445 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:58,476 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:58,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:58,479 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:58,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:58,481 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:58,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:58,483 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:58,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:58,502 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:58,504 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:58,513 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:02:58,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:58,515 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:02:58,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:58,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:02:58,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:58,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-11-07 00:02:58,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:58,580 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-11-07 00:02:58,580 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1695439918] [2020-11-07 00:02:58,581 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:58,581 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:02:58,581 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1012965437] [2020-11-07 00:02:58,581 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:02:58,582 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:58,582 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:02:58,582 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:02:58,583 INFO L87 Difference]: Start difference. First operand 881 states and 1015 transitions. Second operand 6 states. [2020-11-07 00:02:59,090 WARN L194 SmtUtils]: Spent 230.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:03:01,517 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:03:01,518 INFO L93 Difference]: Finished difference Result 2041 states and 2454 transitions. [2020-11-07 00:03:01,518 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2020-11-07 00:03:01,518 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-11-07 00:03:01,519 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:03:01,527 INFO L225 Difference]: With dead ends: 2041 [2020-11-07 00:03:01,527 INFO L226 Difference]: Without dead ends: 1275 [2020-11-07 00:03:01,531 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 7 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:03:01,533 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1275 states. [2020-11-07 00:03:02,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1275 to 1174. [2020-11-07 00:03:02,013 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1174 states. [2020-11-07 00:03:02,021 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1174 states to 1174 states and 1337 transitions. [2020-11-07 00:03:02,022 INFO L78 Accepts]: Start accepts. Automaton has 1174 states and 1337 transitions. Word has length 183 [2020-11-07 00:03:02,022 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:03:02,022 INFO L481 AbstractCegarLoop]: Abstraction has 1174 states and 1337 transitions. [2020-11-07 00:03:02,022 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:03:02,023 INFO L276 IsEmpty]: Start isEmpty. Operand 1174 states and 1337 transitions. [2020-11-07 00:03:02,026 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:03:02,026 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:03:02,026 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-11-07 00:03:02,026 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:03:02,027 INFO L429 AbstractCegarLoop]: === Iteration 6 === [reach_errorErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr1ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr0ASSERT_VIOLATIONERROR_FUNCTION, __utac__get_this_argtypeErr1ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-11-07 00:03:02,027 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:03:02,027 INFO L82 PathProgramCache]: Analyzing trace with hash -1195467481, now seen corresponding path program 1 times [2020-11-07 00:03:02,027 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:03:02,028 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [495763047] [2020-11-07 00:03:02,028 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:03:02,031 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:03:02,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:02,109 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:02,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:03:02,185 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:03:02,399 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:03:02,399 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:03:02,401 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:03:02,423 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:03:02 BoogieIcfgContainer [2020-11-07 00:03:02,424 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:03:02,426 INFO L168 Benchmark]: Toolchain (without parser) took 25695.65 ms. Allocated memory was 151.0 MB in the beginning and 587.2 MB in the end (delta: 436.2 MB). Free memory was 125.8 MB in the beginning and 215.1 MB in the end (delta: -89.3 MB). Peak memory consumption was 347.1 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:02,426 INFO L168 Benchmark]: CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:03:02,427 INFO L168 Benchmark]: CACSL2BoogieTranslator took 617.21 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 103.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:02,428 INFO L168 Benchmark]: Boogie Preprocessor took 149.46 ms. Allocated memory is still 151.0 MB. Free memory was 103.5 MB in the beginning and 132.4 MB in the end (delta: -28.9 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:02,429 INFO L168 Benchmark]: RCFGBuilder took 1635.74 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 87.3 MB in the end (delta: 45.1 MB). Peak memory consumption was 65.5 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:02,429 INFO L168 Benchmark]: TraceAbstraction took 23277.58 ms. Allocated memory was 151.0 MB in the beginning and 587.2 MB in the end (delta: 436.2 MB). Free memory was 86.8 MB in the beginning and 215.1 MB in the end (delta: -128.3 MB). Peak memory consumption was 307.4 MB. Max. memory is 8.0 GB. [2020-11-07 00:03:02,433 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.20 ms. Allocated memory is still 151.0 MB. Free memory is still 125.3 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 617.21 ms. Allocated memory is still 151.0 MB. Free memory was 125.1 MB in the beginning and 103.5 MB in the end (delta: 21.6 MB). Peak memory consumption was 22.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 149.46 ms. Allocated memory is still 151.0 MB. Free memory was 103.5 MB in the beginning and 132.4 MB in the end (delta: -28.9 MB). Peak memory consumption was 6.6 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1635.74 ms. Allocated memory is still 151.0 MB. Free memory was 132.4 MB in the beginning and 87.3 MB in the end (delta: 45.1 MB). Peak memory consumption was 65.5 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23277.58 ms. Allocated memory was 151.0 MB in the beginning and 587.2 MB in the end (delta: 436.2 MB). Free memory was 86.8 MB in the beginning and 215.1 MB in the end (delta: -128.3 MB). Peak memory consumption was 307.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L131] int waterLevel = 1; [L132] int methaneLevelCritical = 0; [L231] int pumpRunning = 0; [L232] int systemActive = 1; [L449] int cleanupTimeShifts = 4; [L784] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L523] int retValue_acc ; [L524] int tmp ; [L528] FCALL select_helpers() [L529] FCALL select_features() [L530] CALL, EXPR valid_product() [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L530] RET, EXPR valid_product() [L530] tmp = valid_product() [L532] COND TRUE \read(tmp) [L534] FCALL setup() [L535] CALL runTest() [L517] CALL test() [L547] int splverifierCounter ; [L548] int tmp ; [L549] int tmp___0 ; [L550] int tmp___1 ; [L551] int tmp___2 ; [L554] splverifierCounter = 0 [L556] COND TRUE 1 [L558] COND TRUE splverifierCounter < 4 [L564] tmp = __VERIFIER_nondet_int() [L566] COND TRUE \read(tmp) [L568] CALL waterRise() [L149] COND TRUE waterLevel < 2 [L150] waterLevel = waterLevel + 1 [L568] RET waterRise() [L574] tmp___0 = __VERIFIER_nondet_int() [L576] COND FALSE !(\read(tmp___0)) [L584] tmp___2 = __VERIFIER_nondet_int() [L586] COND FALSE !(\read(tmp___2)) [L592] tmp___1 = __VERIFIER_nondet_int() [L594] COND TRUE \read(tmp___1) [L596] CALL stopSystem() [L429] COND FALSE !(\read(pumpRunning)) [L436] systemActive = 0 [L596] RET stopSystem() [L603] CALL timeShift() [L238] COND FALSE !(\read(pumpRunning)) [L245] COND FALSE !(\read(systemActive)) [L253] CALL __utac_acc__Specification3_spec__1() [L93] int tmp ; [L94] int tmp___0 ; [L95] int tmp___1 ; [L99] CALL, EXPR isMethaneLevelCritical() [L170] int retValue_acc ; [L173] retValue_acc = methaneLevelCritical [L174] return (retValue_acc); [L99] RET, EXPR isMethaneLevelCritical() [L99] tmp = isMethaneLevelCritical() [L101] COND FALSE !(\read(tmp)) [L105] CALL, EXPR getWaterLevel() [L202] int retValue_acc ; [L205] retValue_acc = waterLevel [L206] return (retValue_acc); [L105] RET, EXPR getWaterLevel() [L105] tmp___0 = getWaterLevel() [L107] COND TRUE tmp___0 == 2 [L109] CALL, EXPR isPumpRunning() [L362] int retValue_acc ; [L365] retValue_acc = pumpRunning [L366] return (retValue_acc); [L109] RET, EXPR isPumpRunning() [L109] tmp___1 = isPumpRunning() [L111] COND FALSE !(\read(tmp___1)) [L115] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product48.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 42 procedures, 656 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.1s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 18.0s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1370 SDtfs, 2323 SDslu, 1810 SDs, 0 SdLazy, 4003 SolverSat, 853 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.8s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 151 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 77 ImplicationChecksByTransitivity, 6.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1174occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.4s AutomataMinimizationTime, 5 MinimizatonAttempts, 394 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...