/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_product28.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-7d8eed3 [2020-11-07 00:01:46,100 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-11-07 00:01:46,104 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-11-07 00:01:46,156 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-11-07 00:01:46,157 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-11-07 00:01:46,161 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-11-07 00:01:46,164 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-11-07 00:01:46,172 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-11-07 00:01:46,175 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-11-07 00:01:46,180 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-11-07 00:01:46,181 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-11-07 00:01:46,182 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-11-07 00:01:46,183 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-11-07 00:01:46,186 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-11-07 00:01:46,187 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-11-07 00:01:46,189 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-11-07 00:01:46,190 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-11-07 00:01:46,193 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-11-07 00:01:46,200 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-11-07 00:01:46,207 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-11-07 00:01:46,209 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-11-07 00:01:46,210 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-11-07 00:01:46,211 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-11-07 00:01:46,214 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-11-07 00:01:46,222 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-11-07 00:01:46,222 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-11-07 00:01:46,222 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-11-07 00:01:46,224 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-11-07 00:01:46,225 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-11-07 00:01:46,226 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-11-07 00:01:46,226 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-11-07 00:01:46,227 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-11-07 00:01:46,228 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-11-07 00:01:46,229 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-11-07 00:01:46,230 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-11-07 00:01:46,230 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-11-07 00:01:46,231 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-11-07 00:01:46,231 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-11-07 00:01:46,232 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-11-07 00:01:46,232 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-11-07 00:01:46,233 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-11-07 00:01:46,234 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 00:01:46,254 INFO L113 SettingsManager]: Loading preferences was successful [2020-11-07 00:01:46,255 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-11-07 00:01:46,259 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-11-07 00:01:46,259 INFO L138 SettingsManager]: * sizeof long=4 [2020-11-07 00:01:46,259 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-11-07 00:01:46,259 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-11-07 00:01:46,259 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-11-07 00:01:46,259 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-11-07 00:01:46,260 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-11-07 00:01:46,260 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-11-07 00:01:46,261 INFO L138 SettingsManager]: * sizeof long double=12 [2020-11-07 00:01:46,261 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-11-07 00:01:46,261 INFO L138 SettingsManager]: * Use constant arrays=true [2020-11-07 00:01:46,262 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-11-07 00:01:46,262 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-11-07 00:01:46,262 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-11-07 00:01:46,262 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-11-07 00:01:46,262 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-11-07 00:01:46,263 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-11-07 00:01:46,263 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-11-07 00:01:46,263 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-11-07 00:01:46,263 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-11-07 00:01:46,263 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-11-07 00:01:46,676 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-11-07 00:01:46,717 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-11-07 00:01:46,720 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-11-07 00:01:46,722 INFO L271 PluginConnector]: Initializing CDTParser... [2020-11-07 00:01:46,723 INFO L275 PluginConnector]: CDTParser initialized [2020-11-07 00:01:46,724 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-11-07 00:01:46,802 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a836ba52/5769d25e2fa44c0e834b811186574e83/FLAG19a59e764 [2020-11-07 00:01:47,494 INFO L306 CDTParser]: Found 1 translation units. [2020-11-07 00:01:47,494 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product28.cil.c [2020-11-07 00:01:47,512 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a836ba52/5769d25e2fa44c0e834b811186574e83/FLAG19a59e764 [2020-11-07 00:01:47,820 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/9a836ba52/5769d25e2fa44c0e834b811186574e83 [2020-11-07 00:01:47,823 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-11-07 00:01:47,830 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-11-07 00:01:47,832 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:47,832 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-11-07 00:01:47,836 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-11-07 00:01:47,837 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:47" (1/1) ... [2020-11-07 00:01:47,840 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6d5c0865 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:47, skipping insertion in model container [2020-11-07 00:01:47,841 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 07.11 12:01:47" (1/1) ... [2020-11-07 00:01:47,849 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-11-07 00:01:47,893 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-11-07 00:01:48,274 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:48,294 INFO L203 MainTranslator]: Completed pre-run [2020-11-07 00:01:48,409 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-11-07 00:01:48,466 INFO L208 MainTranslator]: Completed translation [2020-11-07 00:01:48,467 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:48 WrapperNode [2020-11-07 00:01:48,467 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-11-07 00:01:48,468 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-11-07 00:01:48,468 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-11-07 00:01:48,469 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-11-07 00:01:48,482 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:48" (1/1) ... [2020-11-07 00:01:48,482 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:48" (1/1) ... [2020-11-07 00:01:48,501 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:48" (1/1) ... [2020-11-07 00:01:48,502 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:48" (1/1) ... [2020-11-07 00:01:48,534 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:48" (1/1) ... [2020-11-07 00:01:48,544 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:48" (1/1) ... [2020-11-07 00:01:48,550 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:48" (1/1) ... [2020-11-07 00:01:48,558 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-11-07 00:01:48,559 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-11-07 00:01:48,559 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-11-07 00:01:48,559 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-11-07 00:01:48,560 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:48" (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 00:01:48,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-11-07 00:01:48,635 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-11-07 00:01:48,636 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-11-07 00:01:48,636 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-11-07 00:01:48,636 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-11-07 00:01:48,636 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-11-07 00:01:48,636 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-11-07 00:01:48,636 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-11-07 00:01:48,637 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-11-07 00:01:48,637 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-11-07 00:01:48,637 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-11-07 00:01:48,637 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:01:48,637 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-11-07 00:01:48,637 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-11-07 00:01:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-11-07 00:01:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-11-07 00:01:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-11-07 00:01:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-11-07 00:01:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-11-07 00:01:48,638 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-11-07 00:01:48,639 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-11-07 00:01:48,639 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-11-07 00:01:48,639 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-11-07 00:01:48,639 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-11-07 00:01:48,639 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-11-07 00:01:48,639 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-11-07 00:01:48,640 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-11-07 00:01:48,640 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-11-07 00:01:48,640 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-11-07 00:01:48,640 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-11-07 00:01:48,640 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-11-07 00:01:48,640 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-11-07 00:01:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-11-07 00:01:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-11-07 00:01:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:01:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-11-07 00:01:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-11-07 00:01:48,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-11-07 00:01:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-11-07 00:01:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-11-07 00:01:48,642 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-11-07 00:01:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-11-07 00:01:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-11-07 00:01:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-11-07 00:01:48,642 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-11-07 00:01:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-11-07 00:01:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-11-07 00:01:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-11-07 00:01:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-11-07 00:01:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-11-07 00:01:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-11-07 00:01:48,643 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-11-07 00:01:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-11-07 00:01:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-11-07 00:01:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-11-07 00:01:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-11-07 00:01:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-11-07 00:01:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-11-07 00:01:48,644 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-11-07 00:01:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-11-07 00:01:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-11-07 00:01:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-11-07 00:01:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-11-07 00:01:48,645 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-11-07 00:01:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-11-07 00:01:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-11-07 00:01:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-11-07 00:01:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-11-07 00:01:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-11-07 00:01:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-11-07 00:01:48,646 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-11-07 00:01:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-11-07 00:01:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-11-07 00:01:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-11-07 00:01:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-11-07 00:01:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-11-07 00:01:48,647 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-11-07 00:01:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-11-07 00:01:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-11-07 00:01:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-11-07 00:01:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-11-07 00:01:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-11-07 00:01:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-11-07 00:01:48,648 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-11-07 00:01:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-11-07 00:01:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-11-07 00:01:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-11-07 00:01:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-11-07 00:01:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-11-07 00:01:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-11-07 00:01:48,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-11-07 00:01:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-11-07 00:01:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-11-07 00:01:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-11-07 00:01:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-11-07 00:01:48,650 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-11-07 00:01:49,936 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-11-07 00:01:49,937 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-11-07 00:01:49,941 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:01:49 BoogieIcfgContainer [2020-11-07 00:01:49,941 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-11-07 00:01:49,944 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-11-07 00:01:49,944 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-11-07 00:01:49,948 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-11-07 00:01:49,948 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 07.11 12:01:47" (1/3) ... [2020-11-07 00:01:49,949 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7668088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:01:49, skipping insertion in model container [2020-11-07 00:01:49,949 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 07.11 12:01:48" (2/3) ... [2020-11-07 00:01:49,950 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7668088 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 07.11 12:01:49, skipping insertion in model container [2020-11-07 00:01:49,950 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 07.11 12:01:49" (3/3) ... [2020-11-07 00:01:49,951 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product28.cil.c [2020-11-07 00:01:49,967 INFO L179 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-11-07 00:01:49,971 INFO L191 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-11-07 00:01:49,983 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-11-07 00:01:50,008 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-11-07 00:01:50,008 INFO L378 AbstractCegarLoop]: Hoare is true [2020-11-07 00:01:50,008 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-11-07 00:01:50,008 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-11-07 00:01:50,009 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-11-07 00:01:50,009 INFO L382 AbstractCegarLoop]: Difference is false [2020-11-07 00:01:50,009 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-11-07 00:01:50,009 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-11-07 00:01:50,032 INFO L276 IsEmpty]: Start isEmpty. Operand 321 states. [2020-11-07 00:01:50,053 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-11-07 00:01:50,053 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:50,054 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 00:01:50,055 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 00:01:50,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:50,062 INFO L82 PathProgramCache]: Analyzing trace with hash -348296688, now seen corresponding path program 1 times [2020-11-07 00:01:50,071 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:50,071 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [479750563] [2020-11-07 00:01:50,072 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:50,159 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:50,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:50,886 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:50,889 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:50,997 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:51,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,006 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:51,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:51,016 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,023 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,027 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-11-07 00:01:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,033 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-11-07 00:01:51,038 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,040 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-11-07 00:01:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:51,104 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 00:01:51,106 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [479750563] [2020-11-07 00:01:51,108 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:51,109 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-11-07 00:01:51,109 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [427974067] [2020-11-07 00:01:51,114 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-11-07 00:01:51,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:51,128 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-11-07 00:01:51,129 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:01:51,131 INFO L87 Difference]: Start difference. First operand 321 states. Second operand 3 states. [2020-11-07 00:01:52,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:52,764 INFO L93 Difference]: Finished difference Result 468 states and 557 transitions. [2020-11-07 00:01:52,765 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-11-07 00:01:52,766 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-11-07 00:01:52,767 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:52,783 INFO L225 Difference]: With dead ends: 468 [2020-11-07 00:01:52,784 INFO L226 Difference]: Without dead ends: 293 [2020-11-07 00:01:52,789 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-11-07 00:01:52,809 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 293 states. [2020-11-07 00:01:52,966 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 293 to 251. [2020-11-07 00:01:52,967 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 251 states. [2020-11-07 00:01:52,970 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 251 states to 251 states and 271 transitions. [2020-11-07 00:01:52,972 INFO L78 Accepts]: Start accepts. Automaton has 251 states and 271 transitions. Word has length 159 [2020-11-07 00:01:52,973 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:52,973 INFO L481 AbstractCegarLoop]: Abstraction has 251 states and 271 transitions. [2020-11-07 00:01:52,973 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-11-07 00:01:52,973 INFO L276 IsEmpty]: Start isEmpty. Operand 251 states and 271 transitions. [2020-11-07 00:01:52,977 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-11-07 00:01:52,977 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:52,978 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 00:01:52,978 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-11-07 00:01:52,978 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 00:01:52,979 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:52,979 INFO L82 PathProgramCache]: Analyzing trace with hash -1143971558, now seen corresponding path program 1 times [2020-11-07 00:01:52,980 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:52,980 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [296568572] [2020-11-07 00:01:52,980 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:52,984 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:53,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,426 WARN L194 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:53,428 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:53,438 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,509 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:53,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:53,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:53,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:53,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-11-07 00:01:53,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-11-07 00:01:53,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,523 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-11-07 00:01:53,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:53,570 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 00:01:53,570 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [296568572] [2020-11-07 00:01:53,571 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:53,571 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-11-07 00:01:53,571 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [597563491] [2020-11-07 00:01:53,572 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-11-07 00:01:53,572 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:53,573 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-11-07 00:01:53,573 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-11-07 00:01:53,574 INFO L87 Difference]: Start difference. First operand 251 states and 271 transitions. Second operand 4 states. [2020-11-07 00:01:54,374 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:01:55,444 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:01:55,445 INFO L93 Difference]: Finished difference Result 372 states and 416 transitions. [2020-11-07 00:01:55,446 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-11-07 00:01:55,446 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-11-07 00:01:55,447 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:01:55,451 INFO L225 Difference]: With dead ends: 372 [2020-11-07 00:01:55,451 INFO L226 Difference]: Without dead ends: 276 [2020-11-07 00:01:55,453 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-11-07 00:01:55,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2020-11-07 00:01:55,589 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 241. [2020-11-07 00:01:55,590 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 241 states. [2020-11-07 00:01:55,591 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 241 states to 241 states and 258 transitions. [2020-11-07 00:01:55,592 INFO L78 Accepts]: Start accepts. Automaton has 241 states and 258 transitions. Word has length 160 [2020-11-07 00:01:55,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:01:55,593 INFO L481 AbstractCegarLoop]: Abstraction has 241 states and 258 transitions. [2020-11-07 00:01:55,593 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-11-07 00:01:55,593 INFO L276 IsEmpty]: Start isEmpty. Operand 241 states and 258 transitions. [2020-11-07 00:01:55,596 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 174 [2020-11-07 00:01:55,596 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:01:55,596 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 00:01:55,597 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-11-07 00:01:55,597 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 00:01:55,597 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:01:55,598 INFO L82 PathProgramCache]: Analyzing trace with hash -1464081422, now seen corresponding path program 1 times [2020-11-07 00:01:55,598 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:01:55,598 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1653060617] [2020-11-07 00:01:55,599 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:01:55,603 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:01:55,639 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:56,070 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:01:56,071 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:01:56,080 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:56,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:01:56,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:56,115 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:01:56,116 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:56,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:01:56,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:56,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:01:56,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:56,167 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-11-07 00:01:56,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:56,185 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:01:56,186 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:56,187 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:01:56,188 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:56,189 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:01:56,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:01:56,247 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 00:01:56,249 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1653060617] [2020-11-07 00:01:56,249 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:01:56,249 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-11-07 00:01:56,249 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [585031375] [2020-11-07 00:01:56,251 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-11-07 00:01:56,251 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:01:56,252 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-11-07 00:01:56,252 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-11-07 00:01:56,253 INFO L87 Difference]: Start difference. First operand 241 states and 258 transitions. Second operand 10 states. [2020-11-07 00:01:56,975 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:01:57,436 WARN L194 SmtUtils]: Spent 322.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-11-07 00:01:57,844 WARN L194 SmtUtils]: Spent 379.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-11-07 00:01:58,256 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:01:58,654 WARN L194 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:01:59,065 WARN L194 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:00,268 WARN L194 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-11-07 00:02:02,856 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:02,857 INFO L93 Difference]: Finished difference Result 656 states and 761 transitions. [2020-11-07 00:02:02,857 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 15 states. [2020-11-07 00:02:02,857 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 173 [2020-11-07 00:02:02,859 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:02,867 INFO L225 Difference]: With dead ends: 656 [2020-11-07 00:02:02,867 INFO L226 Difference]: Without dead ends: 530 [2020-11-07 00:02:02,869 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 22 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 45 ImplicationChecksByTransitivity, 2.9s TimeCoverageRelationStatistics Valid=104, Invalid=238, Unknown=0, NotChecked=0, Total=342 [2020-11-07 00:02:02,870 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 530 states. [2020-11-07 00:02:03,100 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 530 to 437. [2020-11-07 00:02:03,101 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 437 states. [2020-11-07 00:02:03,103 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 437 states to 437 states and 486 transitions. [2020-11-07 00:02:03,104 INFO L78 Accepts]: Start accepts. Automaton has 437 states and 486 transitions. Word has length 173 [2020-11-07 00:02:03,105 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:03,105 INFO L481 AbstractCegarLoop]: Abstraction has 437 states and 486 transitions. [2020-11-07 00:02:03,105 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-11-07 00:02:03,105 INFO L276 IsEmpty]: Start isEmpty. Operand 437 states and 486 transitions. [2020-11-07 00:02:03,108 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-11-07 00:02:03,108 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:03,108 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 00:02:03,109 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-11-07 00:02:03,109 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 00:02:03,109 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:03,110 INFO L82 PathProgramCache]: Analyzing trace with hash -2092831406, now seen corresponding path program 1 times [2020-11-07 00:02:03,110 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:03,112 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1107178156] [2020-11-07 00:02:03,112 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:03,115 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:03,145 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,534 WARN L194 SmtUtils]: Spent 310.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:03,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:03,562 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,604 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:03,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,607 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:03,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,610 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:03,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,616 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:03,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,637 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:03,638 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,640 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-11-07 00:02:03,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,643 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-11-07 00:02:03,644 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,669 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-11-07 00:02:03,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:03,735 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 00:02:03,735 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1107178156] [2020-11-07 00:02:03,736 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:03,736 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-11-07 00:02:03,736 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831286217] [2020-11-07 00:02:03,737 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-11-07 00:02:03,737 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:03,738 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-11-07 00:02:03,739 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-11-07 00:02:03,739 INFO L87 Difference]: Start difference. First operand 437 states and 486 transitions. Second operand 9 states. [2020-11-07 00:02:04,367 WARN L194 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:06,498 WARN L194 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:06,923 WARN L194 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:07,402 WARN L194 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:07,895 WARN L194 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:08,282 WARN L194 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-11-07 00:02:08,677 WARN L194 SmtUtils]: Spent 347.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:09,058 WARN L194 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-11-07 00:02:10,062 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:10,062 INFO L93 Difference]: Finished difference Result 1158 states and 1388 transitions. [2020-11-07 00:02:10,063 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-11-07 00:02:10,063 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-11-07 00:02:10,064 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:10,071 INFO L225 Difference]: With dead ends: 1158 [2020-11-07 00:02:10,071 INFO L226 Difference]: Without dead ends: 836 [2020-11-07 00:02:10,076 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.3s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-11-07 00:02:10,078 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 836 states. [2020-11-07 00:02:10,446 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 836 to 737. [2020-11-07 00:02:10,446 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 737 states. [2020-11-07 00:02:10,451 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 737 states to 737 states and 843 transitions. [2020-11-07 00:02:10,452 INFO L78 Accepts]: Start accepts. Automaton has 737 states and 843 transitions. Word has length 178 [2020-11-07 00:02:10,452 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:10,452 INFO L481 AbstractCegarLoop]: Abstraction has 737 states and 843 transitions. [2020-11-07 00:02:10,452 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-11-07 00:02:10,453 INFO L276 IsEmpty]: Start isEmpty. Operand 737 states and 843 transitions. [2020-11-07 00:02:10,457 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:02:10,457 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:10,458 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 00:02:10,458 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-11-07 00:02:10,458 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 00:02:10,459 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:10,459 INFO L82 PathProgramCache]: Analyzing trace with hash -1548007439, now seen corresponding path program 1 times [2020-11-07 00:02:10,459 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:10,460 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [870257945] [2020-11-07 00:02:10,460 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:10,465 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:10,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:10,841 WARN L194 SmtUtils]: Spent 286.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-11-07 00:02:10,842 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-11-07 00:02:10,881 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:10,921 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-11-07 00:02:10,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:10,924 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-11-07 00:02:10,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:10,926 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-11-07 00:02:10,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:10,928 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-11-07 00:02:10,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:10,939 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-11-07 00:02:10,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:10,951 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 140 [2020-11-07 00:02:10,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:10,953 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 150 [2020-11-07 00:02:10,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:10,955 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 160 [2020-11-07 00:02:10,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:10,957 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 170 [2020-11-07 00:02:10,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-11-07 00:02:11,005 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 00:02:11,006 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [870257945] [2020-11-07 00:02:11,006 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-11-07 00:02:11,007 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-11-07 00:02:11,009 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [301118318] [2020-11-07 00:02:11,010 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-11-07 00:02:11,010 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-11-07 00:02:11,011 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-11-07 00:02:11,011 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-11-07 00:02:11,013 INFO L87 Difference]: Start difference. First operand 737 states and 843 transitions. Second operand 6 states. [2020-11-07 00:02:11,675 WARN L194 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-11-07 00:02:12,966 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-11-07 00:02:12,967 INFO L93 Difference]: Finished difference Result 1255 states and 1496 transitions. [2020-11-07 00:02:12,968 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-11-07 00:02:12,968 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 183 [2020-11-07 00:02:12,969 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-11-07 00:02:12,972 INFO L225 Difference]: With dead ends: 1255 [2020-11-07 00:02:12,973 INFO L226 Difference]: Without dead ends: 633 [2020-11-07 00:02:12,975 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 25 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-11-07 00:02:12,976 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 633 states. [2020-11-07 00:02:13,202 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 633 to 556. [2020-11-07 00:02:13,203 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 556 states. [2020-11-07 00:02:13,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 556 states to 556 states and 607 transitions. [2020-11-07 00:02:13,207 INFO L78 Accepts]: Start accepts. Automaton has 556 states and 607 transitions. Word has length 183 [2020-11-07 00:02:13,207 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-11-07 00:02:13,207 INFO L481 AbstractCegarLoop]: Abstraction has 556 states and 607 transitions. [2020-11-07 00:02:13,207 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-11-07 00:02:13,207 INFO L276 IsEmpty]: Start isEmpty. Operand 556 states and 607 transitions. [2020-11-07 00:02:13,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-11-07 00:02:13,211 INFO L414 BasicCegarLoop]: Found error trace [2020-11-07 00:02:13,211 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 00:02:13,211 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-11-07 00:02:13,211 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 00:02:13,212 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-11-07 00:02:13,212 INFO L82 PathProgramCache]: Analyzing trace with hash 480351231, now seen corresponding path program 1 times [2020-11-07 00:02:13,212 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-11-07 00:02:13,212 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [866623832] [2020-11-07 00:02:13,212 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-11-07 00:02:13,215 INFO L328 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-11-07 00:02:13,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:02:13,313 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:02:13,392 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-11-07 00:02:13,393 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-11-07 00:02:13,654 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-11-07 00:02:13,654 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-11-07 00:02:13,656 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-11-07 00:02:13,690 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 07.11 12:02:13 BoogieIcfgContainer [2020-11-07 00:02:13,690 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-11-07 00:02:13,694 INFO L168 Benchmark]: Toolchain (without parser) took 25866.88 ms. Allocated memory was 155.2 MB in the beginning and 562.0 MB in the end (delta: 406.8 MB). Free memory was 130.8 MB in the beginning and 487.0 MB in the end (delta: -356.2 MB). Peak memory consumption was 50.9 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:13,699 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 106.4 MB in the beginning and 106.3 MB in the end (delta: 67.3 kB). There was no memory consumed. Max. memory is 8.0 GB. [2020-11-07 00:02:13,701 INFO L168 Benchmark]: CACSL2BoogieTranslator took 635.84 ms. Allocated memory is still 155.2 MB. Free memory was 130.2 MB in the beginning and 135.7 MB in the end (delta: -5.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:13,702 INFO L168 Benchmark]: Boogie Preprocessor took 89.84 ms. Allocated memory is still 155.2 MB. Free memory was 135.7 MB in the beginning and 131.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:13,702 INFO L168 Benchmark]: RCFGBuilder took 1382.40 ms. Allocated memory is still 155.2 MB. Free memory was 131.8 MB in the beginning and 107.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 44.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:13,703 INFO L168 Benchmark]: TraceAbstraction took 23745.92 ms. Allocated memory was 155.2 MB in the beginning and 562.0 MB in the end (delta: 406.8 MB). Free memory was 106.9 MB in the beginning and 487.0 MB in the end (delta: -380.2 MB). Peak memory consumption was 26.7 MB. Max. memory is 8.0 GB. [2020-11-07 00:02:13,715 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 125.8 MB. Free memory was 106.4 MB in the beginning and 106.3 MB in the end (delta: 67.3 kB). There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 635.84 ms. Allocated memory is still 155.2 MB. Free memory was 130.2 MB in the beginning and 135.7 MB in the end (delta: -5.5 MB). Peak memory consumption was 24.8 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 89.84 ms. Allocated memory is still 155.2 MB. Free memory was 135.7 MB in the beginning and 131.8 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1382.40 ms. Allocated memory is still 155.2 MB. Free memory was 131.8 MB in the beginning and 107.4 MB in the end (delta: 24.4 MB). Peak memory consumption was 44.7 MB. Max. memory is 8.0 GB. * TraceAbstraction took 23745.92 ms. Allocated memory was 155.2 MB in the beginning and 562.0 MB in the end (delta: 406.8 MB). Free memory was 106.9 MB in the beginning and 487.0 MB in the end (delta: -380.2 MB). Peak memory consumption was 26.7 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: [L91] int pumpRunning = 0; [L92] int systemActive = 1; [L358] int waterLevel = 1; [L359] int methaneLevelCritical = 0; [L447] int cleanupTimeShifts = 4; [L755] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L520] int retValue_acc ; [L521] int tmp ; [L525] FCALL select_helpers() [L526] FCALL select_features() [L527] CALL, EXPR valid_product() [L71] int retValue_acc ; [L74] retValue_acc = 1 [L75] return (retValue_acc); [L527] RET, EXPR valid_product() [L527] tmp = valid_product() [L529] COND TRUE \read(tmp) [L531] FCALL setup() [L532] CALL runTest() [L514] CALL test() [L289] int splverifierCounter ; [L290] int tmp ; [L291] int tmp___0 ; [L292] int tmp___1 ; [L293] int tmp___2 ; [L296] splverifierCounter = 0 [L298] COND TRUE 1 [L300] COND TRUE splverifierCounter < 4 [L306] tmp = __VERIFIER_nondet_int() [L308] COND TRUE \read(tmp) [L310] CALL waterRise() [L376] COND TRUE waterLevel < 2 [L377] waterLevel = waterLevel + 1 [L310] RET waterRise() [L316] tmp___0 = __VERIFIER_nondet_int() [L318] COND FALSE !(\read(tmp___0)) [L326] tmp___2 = __VERIFIER_nondet_int() [L328] COND FALSE !(\read(tmp___2)) [L334] tmp___1 = __VERIFIER_nondet_int() [L336] COND TRUE \read(tmp___1) [L338] CALL stopSystem() [L265] COND FALSE !(\read(pumpRunning)) [L272] systemActive = 0 [L338] RET stopSystem() [L345] CALL timeShift() [L99] COND FALSE !(\read(pumpRunning)) [L106] COND FALSE !(\read(systemActive)) [L114] CALL __utac_acc__Specification3_spec__1() [L553] int tmp ; [L554] int tmp___0 ; [L555] int tmp___1 ; [L559] CALL, EXPR isMethaneLevelCritical() [L397] int retValue_acc ; [L400] retValue_acc = methaneLevelCritical [L401] return (retValue_acc); [L559] RET, EXPR isMethaneLevelCritical() [L559] tmp = isMethaneLevelCritical() [L561] COND FALSE !(\read(tmp)) [L565] CALL, EXPR getWaterLevel() [L429] int retValue_acc ; [L432] retValue_acc = waterLevel [L433] return (retValue_acc); [L565] RET, EXPR getWaterLevel() [L565] tmp___0 = getWaterLevel() [L567] COND TRUE tmp___0 == 2 [L569] CALL, EXPR isPumpRunning() [L198] int retValue_acc ; [L201] retValue_acc = pumpRunning [L202] return (retValue_acc); [L569] RET, EXPR isPumpRunning() [L569] tmp___1 = isPumpRunning() [L571] COND FALSE !(\read(tmp___1)) [L575] CALL __automaton_fail() [L547] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product28.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 41 procedures, 641 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 23.6s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 18.4s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1169 SDtfs, 1779 SDslu, 1606 SDs, 0 SdLazy, 3186 SolverSat, 603 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 9.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 150 GetRequests, 104 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 8.0s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=737occurred 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: 1.1s AutomataMinimizationTime, 5 MinimizatonAttempts, 346 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...