/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_spec4_product26.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 20:05:53,093 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 20:05:53,102 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 20:05:53,155 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 20:05:53,155 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 20:05:53,159 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 20:05:53,163 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 20:05:53,170 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 20:05:53,185 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 20:05:53,187 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 20:05:53,188 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 20:05:53,191 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 20:05:53,191 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 20:05:53,200 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 20:05:53,201 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 20:05:53,203 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 20:05:53,204 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 20:05:53,208 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 20:05:53,212 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 20:05:53,219 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 20:05:53,222 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 20:05:53,223 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 20:05:53,224 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 20:05:53,225 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 20:05:53,234 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 20:05:53,234 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 20:05:53,234 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 20:05:53,235 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 20:05:53,237 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 20:05:53,238 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 20:05:53,239 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 20:05:53,240 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 20:05:53,242 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 20:05:53,242 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 20:05:53,243 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 20:05:53,244 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 20:05:53,244 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 20:05:53,245 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 20:05:53,245 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 20:05:53,246 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 20:05:53,246 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 20:05:53,247 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf [2020-10-23 20:05:53,271 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 20:05:53,271 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 20:05:53,276 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 20:05:53,276 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 20:05:53,276 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 20:05:53,276 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 20:05:53,277 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 20:05:53,277 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 20:05:53,277 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 20:05:53,277 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 20:05:53,278 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 20:05:53,278 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 20:05:53,279 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 20:05:53,279 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 20:05:53,279 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 20:05:53,280 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 20:05:53,280 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 20:05:53,280 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 20:05:53,280 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 20:05:53,280 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 20:05:53,280 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 20:05:53,281 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 20:05:53,281 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 20:05:53,698 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 20:05:53,725 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 20:05:53,728 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 20:05:53,729 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 20:05:53,730 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 20:05:53,731 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product26.cil.c [2020-10-23 20:05:53,806 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81f3c0692/fbfcb375900e4aada2f9c3e072d102ee/FLAGbde0bfb77 [2020-10-23 20:05:54,528 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 20:05:54,528 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product26.cil.c [2020-10-23 20:05:54,550 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81f3c0692/fbfcb375900e4aada2f9c3e072d102ee/FLAGbde0bfb77 [2020-10-23 20:05:54,783 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/81f3c0692/fbfcb375900e4aada2f9c3e072d102ee [2020-10-23 20:05:54,785 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 20:05:54,791 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 20:05:54,799 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 20:05:54,799 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 20:05:54,803 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 20:05:54,804 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:05:54" (1/1) ... [2020-10-23 20:05:54,808 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1cb9bf95 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:54, skipping insertion in model container [2020-10-23 20:05:54,809 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 08:05:54" (1/1) ... [2020-10-23 20:05:54,817 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 20:05:54,896 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 20:05:55,181 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:05:55,203 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 20:05:55,366 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 20:05:55,404 INFO L208 MainTranslator]: Completed translation [2020-10-23 20:05:55,405 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55 WrapperNode [2020-10-23 20:05:55,405 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 20:05:55,407 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 20:05:55,407 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 20:05:55,407 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 20:05:55,420 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,420 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,457 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,459 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,513 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,531 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,542 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (1/1) ... [2020-10-23 20:05:55,554 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 20:05:55,562 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 20:05:55,562 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 20:05:55,562 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 20:05:55,563 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (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 [2020-10-23 20:05:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 20:05:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 20:05:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 20:05:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 20:05:55,641 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 20:05:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 20:05:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 20:05:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 20:05:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 20:05:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:05:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 20:05:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 20:05:55,642 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 20:05:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 20:05:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 20:05:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterLevel [2020-10-23 20:05:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 20:05:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 20:05:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 20:05:55,643 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 20:05:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 20:05:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 20:05:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 20:05:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure isLowWaterSensorDry [2020-10-23 20:05:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:05:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 20:05:55,644 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 20:05:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 20:05:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 20:05:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 20:05:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 20:05:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 20:05:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 20:05:55,645 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 20:05:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 20:05:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 20:05:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 20:05:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 20:05:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 20:05:55,646 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 20:05:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 20:05:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 20:05:55,646 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 20:05:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 20:05:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 20:05:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 20:05:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 20:05:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 20:05:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 20:05:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 20:05:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 20:05:55,647 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 20:05:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 20:05:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 20:05:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 20:05:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 20:05:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterSensorDry [2020-10-23 20:05:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 20:05:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 20:05:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 20:05:55,648 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 20:05:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 20:05:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 20:05:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 20:05:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure isLowWaterLevel [2020-10-23 20:05:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump__wrappee__lowWaterSensor [2020-10-23 20:05:55,649 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 20:05:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 20:05:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 20:05:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 20:05:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 20:05:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 20:05:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 20:05:55,650 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 20:05:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 20:05:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 20:05:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 20:05:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 20:05:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 20:05:55,651 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 20:05:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 20:05:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 20:05:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 20:05:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 20:05:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 20:05:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 20:05:55,652 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 20:05:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 20:05:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 20:05:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 20:05:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 20:05:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 20:05:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 20:05:55,653 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 20:05:56,732 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 20:05:56,733 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 20:05:56,735 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:05:56 BoogieIcfgContainer [2020-10-23 20:05:56,735 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 20:05:56,737 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 20:05:56,737 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 20:05:56,741 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 20:05:56,741 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 08:05:54" (1/3) ... [2020-10-23 20:05:56,742 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3a8e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:05:56, skipping insertion in model container [2020-10-23 20:05:56,742 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 08:05:55" (2/3) ... [2020-10-23 20:05:56,743 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@4e3a8e4b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 08:05:56, skipping insertion in model container [2020-10-23 20:05:56,743 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 08:05:56" (3/3) ... [2020-10-23 20:05:56,744 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product26.cil.c [2020-10-23 20:05:56,756 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 20:05:56,762 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 20:05:56,775 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 20:05:56,799 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 20:05:56,800 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 20:05:56,800 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 20:05:56,800 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 20:05:56,800 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 20:05:56,800 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 20:05:56,800 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 20:05:56,800 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 20:05:56,827 INFO L276 IsEmpty]: Start isEmpty. Operand 288 states. [2020-10-23 20:05:56,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 20:05:56,847 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:56,848 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] [2020-10-23 20:05:56,848 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]=== [2020-10-23 20:05:56,854 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:56,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1095998852, now seen corresponding path program 1 times [2020-10-23 20:05:56,864 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:56,864 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [518846962] [2020-10-23 20:05:56,865 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:56,948 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:05:57,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,653 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:05:57,662 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:05:57,684 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,822 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:05:57,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,827 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:05:57,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,832 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:05:57,838 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,840 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:05:57,843 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,844 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 20:05:57,846 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,847 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:05:57,848 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:05:57,891 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:05:57,895 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [518846962] [2020-10-23 20:05:57,898 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:05:57,898 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 20:05:57,899 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [904892708] [2020-10-23 20:05:57,913 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 20:05:57,913 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:05:57,926 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 20:05:57,927 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:05:57,930 INFO L87 Difference]: Start difference. First operand 288 states. Second operand 3 states. [2020-10-23 20:05:59,586 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:05:59,586 INFO L93 Difference]: Finished difference Result 432 states and 514 transitions. [2020-10-23 20:05:59,588 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 20:05:59,589 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 20:05:59,591 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:05:59,616 INFO L225 Difference]: With dead ends: 432 [2020-10-23 20:05:59,617 INFO L226 Difference]: Without dead ends: 274 [2020-10-23 20:05:59,624 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 20:05:59,644 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 274 states. [2020-10-23 20:05:59,812 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 274 to 234. [2020-10-23 20:05:59,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 234 states. [2020-10-23 20:05:59,818 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 234 states to 234 states and 251 transitions. [2020-10-23 20:05:59,820 INFO L78 Accepts]: Start accepts. Automaton has 234 states and 251 transitions. Word has length 148 [2020-10-23 20:05:59,823 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:05:59,823 INFO L481 AbstractCegarLoop]: Abstraction has 234 states and 251 transitions. [2020-10-23 20:05:59,823 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 20:05:59,823 INFO L276 IsEmpty]: Start isEmpty. Operand 234 states and 251 transitions. [2020-10-23 20:05:59,827 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 20:05:59,827 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:05:59,827 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] [2020-10-23 20:05:59,828 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 20:05:59,828 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]=== [2020-10-23 20:05:59,828 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:05:59,829 INFO L82 PathProgramCache]: Analyzing trace with hash 1848338949, now seen corresponding path program 1 times [2020-10-23 20:05:59,829 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:05:59,829 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [930660764] [2020-10-23 20:05:59,829 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:05:59,833 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:05:59,882 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,278 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:00,281 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:00,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,368 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:00,369 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,370 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:00,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,372 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:00,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,385 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:00,385 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,386 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 20:06:00,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,388 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:06:00,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:00,417 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:06:00,418 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [930660764] [2020-10-23 20:06:00,418 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:00,418 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 20:06:00,418 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [768324860] [2020-10-23 20:06:00,421 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 20:06:00,422 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:00,422 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 20:06:00,422 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 20:06:00,423 INFO L87 Difference]: Start difference. First operand 234 states and 251 transitions. Second operand 4 states. [2020-10-23 20:06:01,277 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:06:02,262 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:02,262 INFO L93 Difference]: Finished difference Result 342 states and 381 transitions. [2020-10-23 20:06:02,263 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 20:06:02,263 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 20:06:02,264 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:02,266 INFO L225 Difference]: With dead ends: 342 [2020-10-23 20:06:02,266 INFO L226 Difference]: Without dead ends: 257 [2020-10-23 20:06:02,269 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 20:06:02,269 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 257 states. [2020-10-23 20:06:02,349 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 257 to 224. [2020-10-23 20:06:02,349 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-23 20:06:02,350 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 238 transitions. [2020-10-23 20:06:02,351 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 238 transitions. Word has length 149 [2020-10-23 20:06:02,351 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:02,352 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 238 transitions. [2020-10-23 20:06:02,352 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 20:06:02,352 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 238 transitions. [2020-10-23 20:06:02,354 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 20:06:02,354 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:02,354 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] [2020-10-23 20:06:02,355 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 20:06:02,355 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]=== [2020-10-23 20:06:02,355 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:02,355 INFO L82 PathProgramCache]: Analyzing trace with hash 289788193, now seen corresponding path program 1 times [2020-10-23 20:06:02,356 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:02,356 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [96373319] [2020-10-23 20:06:02,356 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:02,359 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:06:02,389 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:02,848 WARN L193 SmtUtils]: Spent 366.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:02,851 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:02,858 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:02,886 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:02,887 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:02,888 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:02,890 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:02,891 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:02,893 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:02,938 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:02,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:02,954 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:06:02,956 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:02,973 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 20:06:02,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:02,975 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 20:06:02,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:03,016 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:06:03,018 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [96373319] [2020-10-23 20:06:03,018 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:03,019 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 20:06:03,019 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1460138180] [2020-10-23 20:06:03,022 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 20:06:03,022 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:03,023 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 20:06:03,023 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 20:06:03,024 INFO L87 Difference]: Start difference. First operand 224 states and 238 transitions. Second operand 10 states. [2020-10-23 20:06:03,759 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:06:04,230 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:06:04,638 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 20:06:05,053 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:05,469 WARN L193 SmtUtils]: Spent 376.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:05,828 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:07,360 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:07,360 INFO L93 Difference]: Finished difference Result 388 states and 443 transitions. [2020-10-23 20:06:07,367 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:06:07,367 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 20:06:07,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:07,371 INFO L225 Difference]: With dead ends: 388 [2020-10-23 20:06:07,371 INFO L226 Difference]: Without dead ends: 279 [2020-10-23 20:06:07,374 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.7s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 20:06:07,375 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 279 states. [2020-10-23 20:06:07,483 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 279 to 224. [2020-10-23 20:06:07,483 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 224 states. [2020-10-23 20:06:07,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 224 states to 224 states and 237 transitions. [2020-10-23 20:06:07,485 INFO L78 Accepts]: Start accepts. Automaton has 224 states and 237 transitions. Word has length 162 [2020-10-23 20:06:07,485 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:07,485 INFO L481 AbstractCegarLoop]: Abstraction has 224 states and 237 transitions. [2020-10-23 20:06:07,486 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 20:06:07,486 INFO L276 IsEmpty]: Start isEmpty. Operand 224 states and 237 transitions. [2020-10-23 20:06:07,488 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-23 20:06:07,488 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:07,488 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] [2020-10-23 20:06:07,488 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 20:06:07,489 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]=== [2020-10-23 20:06:07,489 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:07,489 INFO L82 PathProgramCache]: Analyzing trace with hash 1324168534, now seen corresponding path program 1 times [2020-10-23 20:06:07,490 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:07,490 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [868454195] [2020-10-23 20:06:07,490 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:07,493 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:06:07,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:07,931 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:07,932 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:07,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:07,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:07,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:07,984 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:07,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:07,986 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:07,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,046 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:08,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,063 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:06:08,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,083 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 20:06:08,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,086 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:06:08,086 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,087 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 20:06:08,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,126 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-23 20:06:08,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:08,171 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:06:08,172 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [868454195] [2020-10-23 20:06:08,172 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:08,172 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [15] imperfect sequences [] total 15 [2020-10-23 20:06:08,172 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [129984858] [2020-10-23 20:06:08,173 INFO L461 AbstractCegarLoop]: Interpolant automaton has 15 states [2020-10-23 20:06:08,173 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:08,173 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 15 interpolants. [2020-10-23 20:06:08,174 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=180, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:06:08,174 INFO L87 Difference]: Start difference. First operand 224 states and 237 transitions. Second operand 15 states. [2020-10-23 20:06:08,836 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:06:09,364 WARN L193 SmtUtils]: Spent 352.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:06:09,744 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:06:10,130 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:10,526 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:10,942 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:11,774 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 20:06:13,044 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:13,450 WARN L193 SmtUtils]: Spent 346.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:13,895 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:14,362 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 20:06:14,732 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:06:15,114 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:06:15,460 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 20:06:15,834 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:16,206 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:16,631 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:17,156 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 20:06:17,552 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 20:06:17,988 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 20:06:20,315 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:20,315 INFO L93 Difference]: Finished difference Result 764 states and 964 transitions. [2020-10-23 20:06:20,317 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 34 states. [2020-10-23 20:06:20,317 INFO L78 Accepts]: Start accepts. Automaton has 15 states. Word has length 170 [2020-10-23 20:06:20,320 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:20,329 INFO L225 Difference]: With dead ends: 764 [2020-10-23 20:06:20,329 INFO L226 Difference]: Without dead ends: 655 [2020-10-23 20:06:20,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 70 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 40 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 370 ImplicationChecksByTransitivity, 7.8s TimeCoverageRelationStatistics Valid=386, Invalid=1336, Unknown=0, NotChecked=0, Total=1722 [2020-10-23 20:06:20,334 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 655 states. [2020-10-23 20:06:20,514 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 655 to 416. [2020-10-23 20:06:20,514 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 416 states. [2020-10-23 20:06:20,517 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 416 states to 416 states and 457 transitions. [2020-10-23 20:06:20,517 INFO L78 Accepts]: Start accepts. Automaton has 416 states and 457 transitions. Word has length 170 [2020-10-23 20:06:20,518 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:20,518 INFO L481 AbstractCegarLoop]: Abstraction has 416 states and 457 transitions. [2020-10-23 20:06:20,518 INFO L482 AbstractCegarLoop]: Interpolant automaton has 15 states. [2020-10-23 20:06:20,518 INFO L276 IsEmpty]: Start isEmpty. Operand 416 states and 457 transitions. [2020-10-23 20:06:20,521 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 176 [2020-10-23 20:06:20,521 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:20,521 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] [2020-10-23 20:06:20,522 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 20:06:20,522 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]=== [2020-10-23 20:06:20,522 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:20,523 INFO L82 PathProgramCache]: Analyzing trace with hash 1383586491, now seen corresponding path program 1 times [2020-10-23 20:06:20,523 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:20,523 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1981254412] [2020-10-23 20:06:20,523 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:20,526 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 20:06:20,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:20,909 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 20:06:20,910 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 20:06:20,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:20,956 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 20:06:20,957 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:20,958 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 20:06:20,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:20,960 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 20:06:20,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:20,962 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 20:06:20,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:20,981 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 20:06:20,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:20,995 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 20:06:20,996 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:21,007 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 20:06:21,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:21,010 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 20:06:21,010 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:21,011 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 20:06:21,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:21,013 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 162 [2020-10-23 20:06:21,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 20:06:21,056 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-10-23 20:06:21,056 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1981254412] [2020-10-23 20:06:21,056 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 20:06:21,057 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2020-10-23 20:06:21,057 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1534827213] [2020-10-23 20:06:21,057 INFO L461 AbstractCegarLoop]: Interpolant automaton has 7 states [2020-10-23 20:06:21,057 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 20:06:21,058 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2020-10-23 20:06:21,058 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=14, Invalid=28, Unknown=0, NotChecked=0, Total=42 [2020-10-23 20:06:21,058 INFO L87 Difference]: Start difference. First operand 416 states and 457 transitions. Second operand 7 states. [2020-10-23 20:06:21,717 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 20:06:22,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 20:06:22,781 INFO L93 Difference]: Finished difference Result 697 states and 811 transitions. [2020-10-23 20:06:22,781 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 20:06:22,782 INFO L78 Accepts]: Start accepts. Automaton has 7 states. Word has length 175 [2020-10-23 20:06:22,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 20:06:22,786 INFO L225 Difference]: With dead ends: 697 [2020-10-23 20:06:22,786 INFO L226 Difference]: Without dead ends: 396 [2020-10-23 20:06:22,788 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=73, Invalid=137, Unknown=0, NotChecked=0, Total=210 [2020-10-23 20:06:22,789 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 396 states. [2020-10-23 20:06:22,914 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 396 to 309. [2020-10-23 20:06:22,914 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 309 states. [2020-10-23 20:06:22,916 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 309 states to 309 states and 326 transitions. [2020-10-23 20:06:22,916 INFO L78 Accepts]: Start accepts. Automaton has 309 states and 326 transitions. Word has length 175 [2020-10-23 20:06:22,917 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 20:06:22,917 INFO L481 AbstractCegarLoop]: Abstraction has 309 states and 326 transitions. [2020-10-23 20:06:22,917 INFO L482 AbstractCegarLoop]: Interpolant automaton has 7 states. [2020-10-23 20:06:22,917 INFO L276 IsEmpty]: Start isEmpty. Operand 309 states and 326 transitions. [2020-10-23 20:06:22,920 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 227 [2020-10-23 20:06:22,920 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 20:06:22,921 INFO L422 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 20:06:22,921 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 20:06:22,921 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]=== [2020-10-23 20:06:22,921 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 20:06:22,922 INFO L82 PathProgramCache]: Analyzing trace with hash -1777206728, now seen corresponding path program 1 times [2020-10-23 20:06:22,922 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 20:06:22,922 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1300130668] [2020-10-23 20:06:22,922 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 20:06:23,086 WARN L193 SmtUtils]: Spent 143.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:06:23,336 WARN L193 SmtUtils]: Spent 141.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:06:23,522 WARN L193 SmtUtils]: Spent 117.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:06:23,701 WARN L193 SmtUtils]: Spent 121.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:06:23,904 WARN L193 SmtUtils]: Spent 144.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:06:24,133 WARN L193 SmtUtils]: Spent 150.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:06:24,338 WARN L193 SmtUtils]: Spent 138.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:06:24,539 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:06:24,740 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:06:24,959 WARN L193 SmtUtils]: Spent 153.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 20:06:25,168 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 20:06:25,373 WARN L193 SmtUtils]: Spent 137.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:06:25,571 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:06:25,779 WARN L193 SmtUtils]: Spent 142.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 20:06:27,154 WARN L193 SmtUtils]: Spent 509.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:06:27,183 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:28,303 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:06:28,310 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:29,389 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:06:29,400 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:31,804 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:06:34,224 WARN L193 SmtUtils]: Spent 331.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:06:35,138 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:06:35,143 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:37,551 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:06:37,556 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:39,959 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:06:39,966 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:39,972 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:42,405 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:06:42,410 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:43,727 WARN L193 SmtUtils]: Spent 358.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:06:43,732 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:44,679 WARN L193 SmtUtils]: Spent 392.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:06:44,684 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:47,101 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:06:47,106 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:49,557 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:06:49,561 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:52,015 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:06:52,019 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:54,444 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:06:54,448 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:56,970 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification. DAG size of input: 162 DAG size of output: 158 [2020-10-23 20:06:56,974 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:06:56,979 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:06:58,089 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:06:58,094 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:00,548 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:07:00,553 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:02,927 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:02,930 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:05,313 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:05,316 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:06,285 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:07:06,290 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:08,680 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:08,684 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:11,116 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:07:11,120 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:13,510 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:07:13,517 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:13,797 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:14,114 WARN L193 SmtUtils]: Spent 294.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:14,399 WARN L193 SmtUtils]: Spent 264.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:14,683 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:14,971 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:15,254 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:15,551 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:15,835 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:15,838 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:18,327 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:07:18,332 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:19,374 WARN L193 SmtUtils]: Spent 379.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:07:19,377 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:21,866 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:07:21,870 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:24,285 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:07:24,290 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:26,749 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:07:26,753 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:29,177 WARN L193 SmtUtils]: Spent 359.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:07:29,181 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:31,617 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:07:34,058 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:07:34,063 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:34,066 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:34,320 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:34,600 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:34,901 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:35,201 WARN L193 SmtUtils]: Spent 287.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:35,504 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:35,793 WARN L193 SmtUtils]: Spent 267.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:36,071 WARN L193 SmtUtils]: Spent 258.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:36,354 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:07:36,357 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:38,779 WARN L193 SmtUtils]: Spent 356.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:07:38,782 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:41,200 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:07:41,204 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:42,331 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:07:42,334 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:43,696 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:07:46,136 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:07:46,138 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:48,547 WARN L193 SmtUtils]: Spent 339.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:07:48,550 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:50,938 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:07:50,941 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:53,440 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:07:53,446 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:07:55,844 WARN L193 SmtUtils]: Spent 351.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2020-10-23 20:07:55,849 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:07:58,278 WARN L193 SmtUtils]: Spent 367.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2020-10-23 20:08:00,694 WARN L193 SmtUtils]: Spent 368.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2020-10-23 20:08:02,181 WARN L193 SmtUtils]: Spent 436.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:08:02,184 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:04,627 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:08:07,038 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2020-10-23 20:08:07,043 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:09,492 WARN L193 SmtUtils]: Spent 402.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:08:11,704 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:08:11,710 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:13,039 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:08:13,042 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:15,451 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:08:17,880 WARN L193 SmtUtils]: Spent 370.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:08:20,343 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:08:20,346 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:22,766 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:08:22,769 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:24,192 WARN L193 SmtUtils]: Spent 434.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:08:26,630 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:08:26,634 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:29,140 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:08:29,143 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:29,146 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:31,671 WARN L193 SmtUtils]: Spent 458.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:08:34,166 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:08:36,665 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:08:36,667 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:39,168 WARN L193 SmtUtils]: Spent 451.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:08:39,171 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:41,673 WARN L193 SmtUtils]: Spent 452.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:08:41,676 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:44,200 WARN L193 SmtUtils]: Spent 456.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:08:44,203 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:46,770 WARN L193 SmtUtils]: Spent 492.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:08:46,773 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:49,283 WARN L193 SmtUtils]: Spent 446.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:08:49,286 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:08:49,290 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:49,585 WARN L193 SmtUtils]: Spent 284.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:08:49,881 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:08:50,177 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:50,480 WARN L193 SmtUtils]: Spent 290.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:50,774 WARN L193 SmtUtils]: Spent 282.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:51,078 WARN L193 SmtUtils]: Spent 291.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:08:51,370 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:08:51,663 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:08:51,665 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:51,947 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:08:52,243 WARN L193 SmtUtils]: Spent 277.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:08:52,528 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:08:52,816 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:08:53,098 WARN L193 SmtUtils]: Spent 269.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:08:53,383 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:08:53,673 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:08:53,954 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:08:53,956 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:54,236 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:08:54,521 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 20:08:54,808 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:08:55,094 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:08:55,408 WARN L193 SmtUtils]: Spent 280.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 20:08:55,694 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:08:55,976 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:08:56,261 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:08:56,263 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:56,545 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:08:56,827 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:08:57,121 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:08:57,404 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:08:57,689 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:08:57,980 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:08:58,264 WARN L193 SmtUtils]: Spent 272.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:08:58,560 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:08:58,562 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:08:59,243 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:08:59,243 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:08:59,724 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:08:59,725 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:08:59,944 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:08:59,945 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:08:59,947 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:08:59,982 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:08:59 BoogieIcfgContainer [2020-10-23 20:08:59,982 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:08:59,985 INFO L168 Benchmark]: Toolchain (without parser) took 185196.58 ms. Allocated memory was 157.3 MB in the beginning and 418.4 MB in the end (delta: 261.1 MB). Free memory was 132.9 MB in the beginning and 198.4 MB in the end (delta: -65.4 MB). Peak memory consumption was 196.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:59,988 INFO L168 Benchmark]: CDTParser took 1.50 ms. Allocated memory is still 157.3 MB. Free memory is still 130.1 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:08:59,989 INFO L168 Benchmark]: CACSL2BoogieTranslator took 606.93 ms. Allocated memory is still 157.3 MB. Free memory was 132.3 MB in the beginning and 111.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:59,995 INFO L168 Benchmark]: Boogie Preprocessor took 147.49 ms. Allocated memory is still 157.3 MB. Free memory was 111.8 MB in the beginning and 107.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:59,995 INFO L168 Benchmark]: RCFGBuilder took 1173.54 ms. Allocated memory was 157.3 MB in the beginning and 197.1 MB in the end (delta: 39.8 MB). Free memory was 107.7 MB in the beginning and 134.3 MB in the end (delta: -26.6 MB). Peak memory consumption was 29.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:59,996 INFO L168 Benchmark]: TraceAbstraction took 183245.13 ms. Allocated memory was 197.1 MB in the beginning and 418.4 MB in the end (delta: 221.2 MB). Free memory was 134.3 MB in the beginning and 198.4 MB in the end (delta: -64.1 MB). Peak memory consumption was 157.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:08:59,998 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.50 ms. Allocated memory is still 157.3 MB. Free memory is still 130.1 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 606.93 ms. Allocated memory is still 157.3 MB. Free memory was 132.3 MB in the beginning and 111.8 MB in the end (delta: 20.5 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 147.49 ms. Allocated memory is still 157.3 MB. Free memory was 111.8 MB in the beginning and 107.9 MB in the end (delta: 3.9 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1173.54 ms. Allocated memory was 157.3 MB in the beginning and 197.1 MB in the end (delta: 39.8 MB). Free memory was 107.7 MB in the beginning and 134.3 MB in the end (delta: -26.6 MB). Peak memory consumption was 29.2 MB. Max. memory is 8.0 GB. * TraceAbstraction took 183245.13 ms. Allocated memory was 197.1 MB in the beginning and 418.4 MB in the end (delta: 221.2 MB). Free memory was 134.3 MB in the beginning and 198.4 MB in the end (delta: -64.1 MB). Peak memory consumption was 157.2 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 pumpRunning = 0; [L132] int systemActive = 1; [L311] int waterLevel = 1; [L312] int methaneLevelCritical = 0; [L633] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L830] int cleanupTimeShifts = 4; [L903] int retValue_acc ; [L904] int tmp ; [L908] FCALL select_helpers() [L909] FCALL select_features() [L910] CALL, EXPR valid_product() [L455] int retValue_acc ; [L458] retValue_acc = 1 [L459] return (retValue_acc); [L910] RET, EXPR valid_product() [L910] tmp = valid_product() [L912] COND TRUE \read(tmp) [L914] FCALL setup() [L915] CALL runTest() [L897] CALL test() [L57] int splverifierCounter ; [L58] int tmp ; [L59] int tmp___0 ; [L60] int tmp___1 ; [L61] int tmp___2 ; [L64] splverifierCounter = 0 [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND TRUE \read(tmp) [L78] CALL waterRise() [L329] COND TRUE waterLevel < 2 [L330] waterLevel = waterLevel + 1 [L78] RET waterRise() [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L98] CALL startSystem() [L305] systemActive = 1 [L98] RET startSystem() [L111] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L168] int tmp ; [L171] COND FALSE !(\read(pumpRunning)) [L186] FCALL processEnvironment__wrappee__base() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification4_spec__1() [L401] int tmp ; [L402] int tmp___0 ; [L406] CALL, EXPR getWaterLevel() [L382] int retValue_acc ; [L385] retValue_acc = waterLevel [L386] return (retValue_acc); [L406] RET, EXPR getWaterLevel() [L406] tmp = getWaterLevel() [L408] COND FALSE !(tmp == 0) [L154] RET __utac_acc__Specification4_spec__1() [L111] RET timeShift() [L66] COND TRUE 1 [L68] COND TRUE splverifierCounter < 4 [L74] tmp = __VERIFIER_nondet_int() [L76] COND TRUE \read(tmp) [L78] CALL waterRise() [L329] COND TRUE waterLevel < 2 [L330] waterLevel = waterLevel + 1 [L78] RET waterRise() [L84] tmp___0 = __VERIFIER_nondet_int() [L86] COND FALSE !(\read(tmp___0)) [L94] tmp___2 = __VERIFIER_nondet_int() [L96] COND TRUE \read(tmp___2) [L98] CALL startSystem() [L305] systemActive = 1 [L98] RET startSystem() [L111] CALL timeShift() [L139] COND FALSE !(\read(pumpRunning)) [L146] COND TRUE \read(systemActive) [L148] CALL processEnvironment() [L168] int tmp ; [L171] COND FALSE !(\read(pumpRunning)) [L186] FCALL processEnvironment__wrappee__base() [L148] RET processEnvironment() [L154] CALL __utac_acc__Specification4_spec__1() [L401] int tmp ; [L402] int tmp___0 ; [L406] CALL, EXPR getWaterLevel() [L382] int retValue_acc ; [L385] retValue_acc = waterLevel [L386] return (retValue_acc); [L406] RET, EXPR getWaterLevel() [L406] tmp = getWaterLevel() [L408] COND TRUE tmp == 0 [L410] CALL, EXPR isPumpRunning() [L238] int retValue_acc ; [L241] retValue_acc = pumpRunning [L242] return (retValue_acc); [L410] RET, EXPR isPumpRunning() [L410] tmp___0 = isPumpRunning() [L412] COND TRUE \read(tmp___0) [L414] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product26.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 40 procedures, 629 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 183.1s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 21.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1035 SDtfs, 2100 SDslu, 2070 SDs, 0 SdLazy, 3733 SolverSat, 671 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 8.7s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 177 GetRequests, 105 SyntacticMatches, 0 SemanticMatches, 72 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 413 ImplicationChecksByTransitivity, 12.3s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=416occurred in iteration=4, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.6s AutomataMinimizationTime, 5 MinimizatonAttempts, 454 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! [MP z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forcibly destroying the process Received shutdown request...