/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerC.xml -s ../../../trunk/examples/settings/automizer/acceleratedInterpolation/acceleratedInterpolationFastUPR_32.epf -i ../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:57:15,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:57:15,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:57:15,534 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:57:15,535 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:57:15,539 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:57:15,543 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:57:15,551 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:57:15,554 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:57:15,560 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:57:15,562 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:57:15,563 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:57:15,564 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:57:15,568 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:57:15,570 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:57:15,572 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:57:15,573 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:57:15,578 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:57:15,587 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:57:15,594 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:57:15,596 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:57:15,598 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:57:15,600 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:57:15,603 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:57:15,614 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:57:15,614 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:57:15,614 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:57:15,617 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:57:15,618 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:57:15,619 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:57:15,619 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:57:15,620 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:57:15,622 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:57:15,623 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:57:15,624 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:57:15,625 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:57:15,626 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:57:15,626 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:57:15,626 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:57:15,627 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:57:15,628 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:57:15,629 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 19:57:15,651 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:57:15,651 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:57:15,656 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:57:15,656 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:57:15,657 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:57:15,657 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:57:15,657 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:57:15,657 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:57:15,657 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:57:15,658 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:57:15,659 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:57:15,659 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:57:15,659 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:57:15,659 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:57:15,660 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:57:15,660 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:57:15,660 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:57:15,660 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:57:15,661 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:57:15,661 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:57:15,661 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:57:15,661 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:57:15,661 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:57:16,119 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:57:16,151 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:57:16,155 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:57:16,157 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:57:16,158 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:57:16,159 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-23 19:57:16,256 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/042d5e0b1/7349443bf1fa409fa08f4773c1394238/FLAG65f41b445 [2020-10-23 19:57:17,103 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:57:17,104 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec3_product35.cil.c [2020-10-23 19:57:17,132 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/042d5e0b1/7349443bf1fa409fa08f4773c1394238/FLAG65f41b445 [2020-10-23 19:57:17,323 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/042d5e0b1/7349443bf1fa409fa08f4773c1394238 [2020-10-23 19:57:17,326 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:57:17,333 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:57:17,335 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:17,336 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:57:17,340 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:57:17,341 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:17" (1/1) ... [2020-10-23 19:57:17,345 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@7b73d2ee and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:17, skipping insertion in model container [2020-10-23 19:57:17,345 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:57:17" (1/1) ... [2020-10-23 19:57:17,354 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:57:17,402 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:57:17,795 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:17,807 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:57:17,944 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:57:17,993 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:57:17,994 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:17 WrapperNode [2020-10-23 19:57:17,994 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:57:17,996 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:57:17,996 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:57:17,997 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:57:18,014 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:17" (1/1) ... [2020-10-23 19:57:18,014 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:17" (1/1) ... [2020-10-23 19:57:18,059 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:17" (1/1) ... [2020-10-23 19:57:18,059 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:17" (1/1) ... [2020-10-23 19:57:18,117 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:17" (1/1) ... [2020-10-23 19:57:18,135 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:17" (1/1) ... [2020-10-23 19:57:18,147 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:17" (1/1) ... [2020-10-23 19:57:18,162 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:57:18,164 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:57:18,164 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:57:18,164 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:57:18,170 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:17" (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 19:57:18,265 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:57:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:57:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:18,266 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:57:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:57:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:57:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment__wrappee__base [2020-10-23 19:57:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:57:18,267 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:57:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:57:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:57:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:57:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:57:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterLevel [2020-10-23 19:57:18,268 INFO L138 BoogieDeclarations]: Found implementation of procedure stopSystem [2020-10-23 19:57:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:57:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:57:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:57:18,269 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:57:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:57:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:57:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:57:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:57:18,270 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:57:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:57:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:57:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure isHighWaterSensorDry [2020-10-23 19:57:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:57:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:57:18,271 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:57:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:57:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:57:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:18,272 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:57:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:57:18,273 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:57:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:57:18,273 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:57:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:57:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:57:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:57:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:57:18,274 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:57:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:57:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure stopSystem [2020-10-23 19:57:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:57:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:57:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:57:18,275 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:57:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:57:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:57:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterSensorDry [2020-10-23 19:57:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:57:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:57:18,276 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:57:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:57:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification3_spec__1 [2020-10-23 19:57:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:57:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment__wrappee__base [2020-10-23 19:57:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure isHighWaterLevel [2020-10-23 19:57:18,277 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:57:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:57:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:57:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:57:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:57:18,278 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:57:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:57:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:57:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:57:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:57:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:57:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:57:18,279 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:57:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:57:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:57:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:57:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:57:18,280 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:57:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:57:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:57:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:57:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:57:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:57:18,281 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:57:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:57:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:57:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:57:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:57:18,282 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:57:19,990 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:57:19,990 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:57:19,993 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:19 BoogieIcfgContainer [2020-10-23 19:57:19,994 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:57:19,995 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:57:19,996 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:57:19,999 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:57:20,000 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:57:17" (1/3) ... [2020-10-23 19:57:20,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578b9290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:20, skipping insertion in model container [2020-10-23 19:57:20,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:57:17" (2/3) ... [2020-10-23 19:57:20,001 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@578b9290 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:57:20, skipping insertion in model container [2020-10-23 19:57:20,001 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:57:19" (3/3) ... [2020-10-23 19:57:20,003 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec3_product35.cil.c [2020-10-23 19:57:20,016 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:57:20,022 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:57:20,036 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:57:20,062 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:57:20,063 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:57:20,063 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:57:20,063 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:57:20,063 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:57:20,063 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:57:20,063 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:57:20,064 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:57:20,094 INFO L276 IsEmpty]: Start isEmpty. Operand 313 states. [2020-10-23 19:57:20,116 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 160 [2020-10-23 19:57:20,116 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:20,117 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:57:20,118 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 19:57:20,125 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:20,125 INFO L82 PathProgramCache]: Analyzing trace with hash 242518070, now seen corresponding path program 1 times [2020-10-23 19:57:20,135 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:20,136 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [901178789] [2020-10-23 19:57:20,136 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:20,219 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:20,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:21,338 WARN L193 SmtUtils]: Spent 679.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:21,342 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:21,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:21,443 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:21,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:21,451 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:21,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:21,457 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:21,459 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:21,463 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:21,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:21,469 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:57:21,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:21,475 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:57:21,476 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:21,478 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:57:21,479 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:21,526 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 19:57:21,528 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [901178789] [2020-10-23 19:57:21,530 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:21,530 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:57:21,531 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237958428] [2020-10-23 19:57:21,536 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:57:21,537 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:21,551 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:57:21,552 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:57:21,554 INFO L87 Difference]: Start difference. First operand 313 states. Second operand 3 states. [2020-10-23 19:57:23,600 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:23,602 INFO L93 Difference]: Finished difference Result 471 states and 559 transitions. [2020-10-23 19:57:23,603 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:57:23,604 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 159 [2020-10-23 19:57:23,605 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:23,621 INFO L225 Difference]: With dead ends: 471 [2020-10-23 19:57:23,621 INFO L226 Difference]: Without dead ends: 294 [2020-10-23 19:57:23,626 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:57:23,649 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 294 states. [2020-10-23 19:57:23,793 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 294 to 253. [2020-10-23 19:57:23,795 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 253 states. [2020-10-23 19:57:23,797 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 253 states to 253 states and 273 transitions. [2020-10-23 19:57:23,800 INFO L78 Accepts]: Start accepts. Automaton has 253 states and 273 transitions. Word has length 159 [2020-10-23 19:57:23,801 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:23,801 INFO L481 AbstractCegarLoop]: Abstraction has 253 states and 273 transitions. [2020-10-23 19:57:23,801 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:57:23,801 INFO L276 IsEmpty]: Start isEmpty. Operand 253 states and 273 transitions. [2020-10-23 19:57:23,806 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 161 [2020-10-23 19:57:23,807 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:23,807 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:57:23,807 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:57:23,808 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 19:57:23,808 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:23,808 INFO L82 PathProgramCache]: Analyzing trace with hash -980635980, now seen corresponding path program 1 times [2020-10-23 19:57:23,809 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:23,809 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1945573831] [2020-10-23 19:57:23,809 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:23,814 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:23,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:24,464 WARN L193 SmtUtils]: Spent 397.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:24,465 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:24,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:24,510 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:24,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:24,512 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:24,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:24,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:24,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:24,516 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:24,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:24,518 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 127 [2020-10-23 19:57:24,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:24,520 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 137 [2020-10-23 19:57:24,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:24,522 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:57:24,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:24,555 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 19:57:24,556 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1945573831] [2020-10-23 19:57:24,556 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:24,556 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:57:24,556 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1994957864] [2020-10-23 19:57:24,558 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:57:24,558 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:24,558 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:57:24,559 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:57:24,559 INFO L87 Difference]: Start difference. First operand 253 states and 273 transitions. Second operand 4 states. [2020-10-23 19:57:25,416 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:57:26,457 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:26,457 INFO L93 Difference]: Finished difference Result 376 states and 420 transitions. [2020-10-23 19:57:26,458 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:57:26,458 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 160 [2020-10-23 19:57:26,459 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:26,463 INFO L225 Difference]: With dead ends: 376 [2020-10-23 19:57:26,463 INFO L226 Difference]: Without dead ends: 277 [2020-10-23 19:57:26,466 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 20 GetRequests, 17 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.7s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-10-23 19:57:26,467 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 277 states. [2020-10-23 19:57:26,579 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 277 to 243. [2020-10-23 19:57:26,579 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 243 states. [2020-10-23 19:57:26,582 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 243 states to 243 states and 260 transitions. [2020-10-23 19:57:26,582 INFO L78 Accepts]: Start accepts. Automaton has 243 states and 260 transitions. Word has length 160 [2020-10-23 19:57:26,585 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:26,585 INFO L481 AbstractCegarLoop]: Abstraction has 243 states and 260 transitions. [2020-10-23 19:57:26,586 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:57:26,586 INFO L276 IsEmpty]: Start isEmpty. Operand 243 states and 260 transitions. [2020-10-23 19:57:26,590 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2020-10-23 19:57:26,590 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:26,590 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] [2020-10-23 19:57:26,591 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:57:26,591 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 19:57:26,591 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:26,592 INFO L82 PathProgramCache]: Analyzing trace with hash 1871629372, now seen corresponding path program 1 times [2020-10-23 19:57:26,592 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:26,592 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1972047725] [2020-10-23 19:57:26,592 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:26,596 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:26,653 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:27,089 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:27,091 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:27,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:27,150 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:27,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:27,153 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:27,154 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:27,155 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:27,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:27,201 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:27,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:27,204 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:57:27,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:27,207 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 146 [2020-10-23 19:57:27,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:27,209 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 156 [2020-10-23 19:57:27,211 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:27,255 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 19:57:27,255 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1972047725] [2020-10-23 19:57:27,256 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:27,256 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:57:27,256 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1851396193] [2020-10-23 19:57:27,257 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:57:27,257 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:27,258 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:57:27,258 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:57:27,258 INFO L87 Difference]: Start difference. First operand 243 states and 260 transitions. Second operand 9 states. [2020-10-23 19:57:28,101 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:28,603 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:57:29,008 WARN L193 SmtUtils]: Spent 384.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:57:29,417 WARN L193 SmtUtils]: Spent 350.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:29,838 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:30,219 WARN L193 SmtUtils]: Spent 348.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:31,415 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:57:33,770 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:33,770 INFO L93 Difference]: Finished difference Result 638 states and 728 transitions. [2020-10-23 19:57:33,778 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:57:33,778 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 169 [2020-10-23 19:57:33,779 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:33,789 INFO L225 Difference]: With dead ends: 638 [2020-10-23 19:57:33,792 INFO L226 Difference]: Without dead ends: 510 [2020-10-23 19:57:33,797 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 36 GetRequests, 21 SyntacticMatches, 1 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 3.1s TimeCoverageRelationStatistics Valid=71, Invalid=169, Unknown=0, NotChecked=0, Total=240 [2020-10-23 19:57:33,798 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 510 states. [2020-10-23 19:57:34,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 510 to 433. [2020-10-23 19:57:34,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 433 states. [2020-10-23 19:57:34,015 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 433 states to 433 states and 478 transitions. [2020-10-23 19:57:34,015 INFO L78 Accepts]: Start accepts. Automaton has 433 states and 478 transitions. Word has length 169 [2020-10-23 19:57:34,016 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:34,016 INFO L481 AbstractCegarLoop]: Abstraction has 433 states and 478 transitions. [2020-10-23 19:57:34,016 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:57:34,016 INFO L276 IsEmpty]: Start isEmpty. Operand 433 states and 478 transitions. [2020-10-23 19:57:34,019 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 178 [2020-10-23 19:57:34,019 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:34,020 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:57:34,020 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:57:34,020 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 19:57:34,021 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:34,021 INFO L82 PathProgramCache]: Analyzing trace with hash 122403665, now seen corresponding path program 1 times [2020-10-23 19:57:34,021 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:34,022 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1129234747] [2020-10-23 19:57:34,022 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:34,025 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:34,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,422 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:34,423 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:34,460 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,496 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:34,497 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,499 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:34,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,501 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:34,502 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,504 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:34,505 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,514 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 132 [2020-10-23 19:57:34,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,527 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2020-10-23 19:57:34,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,529 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2020-10-23 19:57:34,531 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,532 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 154 [2020-10-23 19:57:34,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,535 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 164 [2020-10-23 19:57:34,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:34,600 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 19:57:34,600 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1129234747] [2020-10-23 19:57:34,601 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:34,601 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:57:34,601 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1084748933] [2020-10-23 19:57:34,604 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:57:34,604 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:34,605 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:57:34,606 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:57:34,607 INFO L87 Difference]: Start difference. First operand 433 states and 478 transitions. Second operand 6 states. [2020-10-23 19:57:35,409 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:37,510 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:57:38,312 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:38,312 INFO L93 Difference]: Finished difference Result 1103 states and 1286 transitions. [2020-10-23 19:57:38,313 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2020-10-23 19:57:38,313 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 177 [2020-10-23 19:57:38,314 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:38,321 INFO L225 Difference]: With dead ends: 1103 [2020-10-23 19:57:38,321 INFO L226 Difference]: Without dead ends: 785 [2020-10-23 19:57:38,323 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 35 GetRequests, 26 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 11 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=34, Invalid=76, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:57:38,325 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 785 states. [2020-10-23 19:57:38,622 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 785 to 667. [2020-10-23 19:57:38,623 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 667 states. [2020-10-23 19:57:38,627 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 667 states to 667 states and 736 transitions. [2020-10-23 19:57:38,628 INFO L78 Accepts]: Start accepts. Automaton has 667 states and 736 transitions. Word has length 177 [2020-10-23 19:57:38,628 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:38,629 INFO L481 AbstractCegarLoop]: Abstraction has 667 states and 736 transitions. [2020-10-23 19:57:38,629 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:57:38,629 INFO L276 IsEmpty]: Start isEmpty. Operand 667 states and 736 transitions. [2020-10-23 19:57:38,632 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 179 [2020-10-23 19:57:38,632 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:38,632 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:57:38,632 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:57:38,633 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 19:57:38,633 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:38,633 INFO L82 PathProgramCache]: Analyzing trace with hash 782034493, now seen corresponding path program 1 times [2020-10-23 19:57:38,634 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:38,634 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [638143022] [2020-10-23 19:57:38,634 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:38,637 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:38,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:39,027 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:57:39,028 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:57:39,059 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:39,106 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:57:39,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:39,109 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:57:39,110 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:39,113 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:57:39,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:39,117 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:57:39,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:39,139 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2020-10-23 19:57:39,141 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:39,143 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 145 [2020-10-23 19:57:39,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:39,146 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 155 [2020-10-23 19:57:39,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:39,197 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 165 [2020-10-23 19:57:39,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:57:39,245 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 19:57:39,246 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [638143022] [2020-10-23 19:57:39,246 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:57:39,246 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2020-10-23 19:57:39,246 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1612640396] [2020-10-23 19:57:39,247 INFO L461 AbstractCegarLoop]: Interpolant automaton has 9 states [2020-10-23 19:57:39,247 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:57:39,247 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2020-10-23 19:57:39,248 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=16, Invalid=56, Unknown=0, NotChecked=0, Total=72 [2020-10-23 19:57:39,248 INFO L87 Difference]: Start difference. First operand 667 states and 736 transitions. Second operand 9 states. [2020-10-23 19:57:39,899 WARN L193 SmtUtils]: Spent 343.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:41,730 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:42,185 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:42,635 WARN L193 SmtUtils]: Spent 333.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:43,129 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:57:43,494 WARN L193 SmtUtils]: Spent 334.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:57:43,876 WARN L193 SmtUtils]: Spent 314.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:44,232 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:57:45,573 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:57:45,573 INFO L93 Difference]: Finished difference Result 1705 states and 1982 transitions. [2020-10-23 19:57:45,573 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 14 states. [2020-10-23 19:57:45,574 INFO L78 Accepts]: Start accepts. Automaton has 9 states. Word has length 178 [2020-10-23 19:57:45,574 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:57:45,582 INFO L225 Difference]: With dead ends: 1705 [2020-10-23 19:57:45,582 INFO L226 Difference]: Without dead ends: 1153 [2020-10-23 19:57:45,585 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 23 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 31 ImplicationChecksByTransitivity, 3.2s TimeCoverageRelationStatistics Valid=86, Invalid=220, Unknown=0, NotChecked=0, Total=306 [2020-10-23 19:57:45,587 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1153 states. [2020-10-23 19:57:46,028 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1153 to 1070. [2020-10-23 19:57:46,028 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 1070 states. [2020-10-23 19:57:46,035 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 1070 states to 1070 states and 1197 transitions. [2020-10-23 19:57:46,036 INFO L78 Accepts]: Start accepts. Automaton has 1070 states and 1197 transitions. Word has length 178 [2020-10-23 19:57:46,036 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:57:46,037 INFO L481 AbstractCegarLoop]: Abstraction has 1070 states and 1197 transitions. [2020-10-23 19:57:46,037 INFO L482 AbstractCegarLoop]: Interpolant automaton has 9 states. [2020-10-23 19:57:46,037 INFO L276 IsEmpty]: Start isEmpty. Operand 1070 states and 1197 transitions. [2020-10-23 19:57:46,063 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 184 [2020-10-23 19:57:46,063 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:57:46,063 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:57:46,063 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:57:46,064 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 19:57:46,064 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:57:46,064 INFO L82 PathProgramCache]: Analyzing trace with hash 1594184124, now seen corresponding path program 1 times [2020-10-23 19:57:46,065 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:57:46,065 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1106967113] [2020-10-23 19:57:46,065 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:57:46,068 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:57:46,142 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:57:46,143 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:57:46,214 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 19:57:46,214 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 19:57:46,392 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 19:57:46,393 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 19:57:46,395 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 19:57:46,428 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 07:57:46 BoogieIcfgContainer [2020-10-23 19:57:46,428 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 19:57:46,431 INFO L168 Benchmark]: Toolchain (without parser) took 29101.42 ms. Allocated memory was 163.6 MB in the beginning and 505.4 MB in the end (delta: 341.8 MB). Free memory was 138.6 MB in the beginning and 424.0 MB in the end (delta: -285.5 MB). Peak memory consumption was 57.6 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:46,432 INFO L168 Benchmark]: CDTParser took 0.26 ms. Allocated memory is still 125.8 MB. Free memory is still 81.9 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 19:57:46,439 INFO L168 Benchmark]: CACSL2BoogieTranslator took 659.75 ms. Allocated memory is still 163.6 MB. Free memory was 137.9 MB in the beginning and 116.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:46,440 INFO L168 Benchmark]: Boogie Preprocessor took 166.44 ms. Allocated memory is still 163.6 MB. Free memory was 116.9 MB in the beginning and 113.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:46,440 INFO L168 Benchmark]: RCFGBuilder took 1830.31 ms. Allocated memory is still 163.6 MB. Free memory was 113.1 MB in the beginning and 139.2 MB in the end (delta: -26.1 MB). Peak memory consumption was 64.1 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:46,441 INFO L168 Benchmark]: TraceAbstraction took 26432.62 ms. Allocated memory was 163.6 MB in the beginning and 505.4 MB in the end (delta: 341.8 MB). Free memory was 138.7 MB in the beginning and 424.0 MB in the end (delta: -285.3 MB). Peak memory consumption was 56.5 MB. Max. memory is 8.0 GB. [2020-10-23 19:57:46,453 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.26 ms. Allocated memory is still 125.8 MB. Free memory is still 81.9 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 659.75 ms. Allocated memory is still 163.6 MB. Free memory was 137.9 MB in the beginning and 116.9 MB in the end (delta: 21.0 MB). Peak memory consumption was 21.0 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 166.44 ms. Allocated memory is still 163.6 MB. Free memory was 116.9 MB in the beginning and 113.1 MB in the end (delta: 3.8 MB). Peak memory consumption was 3.1 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1830.31 ms. Allocated memory is still 163.6 MB. Free memory was 113.1 MB in the beginning and 139.2 MB in the end (delta: -26.1 MB). Peak memory consumption was 64.1 MB. Max. memory is 8.0 GB. * TraceAbstraction took 26432.62 ms. Allocated memory was 163.6 MB in the beginning and 505.4 MB in the end (delta: 341.8 MB). Free memory was 138.7 MB in the beginning and 424.0 MB in the end (delta: -285.3 MB). Peak memory consumption was 56.5 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: [L122] int pumpRunning = 0; [L123] int systemActive = 1; [L326] int cleanupTimeShifts = 4; [L425] int waterLevel = 1; [L426] int methaneLevelCritical = 0; [L732] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L402] int retValue_acc ; [L403] int tmp ; [L407] FCALL select_helpers() [L408] FCALL select_features() [L409] CALL, EXPR valid_product() [L545] int retValue_acc ; [L548] retValue_acc = 1 [L549] return (retValue_acc); [L409] RET, EXPR valid_product() [L409] tmp = valid_product() [L411] COND TRUE \read(tmp) [L413] FCALL setup() [L414] CALL runTest() [L393] CALL test() [L48] int splverifierCounter ; [L49] int tmp ; [L50] int tmp___0 ; [L51] int tmp___1 ; [L52] int tmp___2 ; [L55] splverifierCounter = 0 [L57] COND TRUE 1 [L59] COND TRUE splverifierCounter < 4 [L65] tmp = __VERIFIER_nondet_int() [L67] COND TRUE \read(tmp) [L69] CALL waterRise() [L443] COND TRUE waterLevel < 2 [L444] waterLevel = waterLevel + 1 [L69] RET waterRise() [L75] tmp___0 = __VERIFIER_nondet_int() [L77] COND FALSE !(\read(tmp___0)) [L85] tmp___2 = __VERIFIER_nondet_int() [L87] COND FALSE !(\read(tmp___2)) [L91] tmp___1 = __VERIFIER_nondet_int() [L93] COND TRUE \read(tmp___1) [L95] CALL stopSystem() [L278] COND FALSE !(\read(pumpRunning)) [L285] systemActive = 0 [L95] RET stopSystem() [L102] CALL timeShift() [L130] COND FALSE !(\read(pumpRunning)) [L137] COND FALSE !(\read(systemActive)) [L145] CALL __utac_acc__Specification3_spec__1() [L293] int tmp ; [L294] int tmp___0 ; [L295] int tmp___1 ; [L299] CALL, EXPR isMethaneLevelCritical() [L464] int retValue_acc ; [L467] retValue_acc = methaneLevelCritical [L468] return (retValue_acc); [L299] RET, EXPR isMethaneLevelCritical() [L299] tmp = isMethaneLevelCritical() [L301] COND FALSE !(\read(tmp)) [L305] CALL, EXPR getWaterLevel() [L496] int retValue_acc ; [L499] retValue_acc = waterLevel [L500] return (retValue_acc); [L305] RET, EXPR getWaterLevel() [L305] tmp___0 = getWaterLevel() [L307] COND TRUE tmp___0 == 2 [L309] CALL, EXPR isPumpRunning() [L211] int retValue_acc ; [L214] retValue_acc = pumpRunning [L215] return (retValue_acc); [L309] RET, EXPR isPumpRunning() [L309] tmp___1 = isPumpRunning() [L311] COND FALSE !(\read(tmp___1)) [L315] CALL __automaton_fail() [L558] CALL reach_error() [L3] __assert_fail("0", "minepump_spec3_product35.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 39 procedures, 631 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 26.3s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 20.5s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 1208 SDtfs, 1714 SDslu, 1558 SDs, 0 SdLazy, 3305 SolverSat, 556 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 10.3s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 148 GetRequests, 104 SyntacticMatches, 1 SemanticMatches, 43 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 8.9s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=1070occurred in iteration=5, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 1.2s AutomataMinimizationTime, 5 MinimizatonAttempts, 353 StatesRemovedByMinimization, 5 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: No data available, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be incorrect! Received shutdown request...