/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_product02.cil.c -------------------------------------------------------------------------------- This is Ultimate 0.2.0-b8ad66e [2020-10-23 19:58:45,483 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-10-23 19:58:45,486 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-10-23 19:58:45,538 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-10-23 19:58:45,539 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-10-23 19:58:45,543 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-10-23 19:58:45,546 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-10-23 19:58:45,554 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-10-23 19:58:45,557 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-10-23 19:58:45,563 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-10-23 19:58:45,564 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-10-23 19:58:45,566 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-10-23 19:58:45,566 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-10-23 19:58:45,569 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-10-23 19:58:45,571 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-10-23 19:58:45,573 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-10-23 19:58:45,574 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-10-23 19:58:45,577 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-10-23 19:58:45,584 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-10-23 19:58:45,592 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-10-23 19:58:45,593 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-10-23 19:58:45,595 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-10-23 19:58:45,598 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-10-23 19:58:45,600 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-10-23 19:58:45,608 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-10-23 19:58:45,609 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-10-23 19:58:45,609 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-10-23 19:58:45,612 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-10-23 19:58:45,612 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-10-23 19:58:45,614 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-10-23 19:58:45,614 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-10-23 19:58:45,615 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-10-23 19:58:45,617 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-10-23 19:58:45,618 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-10-23 19:58:45,619 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-10-23 19:58:45,619 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-10-23 19:58:45,620 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-10-23 19:58:45,620 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-10-23 19:58:45,620 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-10-23 19:58:45,637 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-10-23 19:58:45,638 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-10-23 19:58:45,639 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 19:58:45,661 INFO L113 SettingsManager]: Loading preferences was successful [2020-10-23 19:58:45,661 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-10-23 19:58:45,666 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-10-23 19:58:45,666 INFO L138 SettingsManager]: * sizeof long=4 [2020-10-23 19:58:45,666 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-10-23 19:58:45,666 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-10-23 19:58:45,666 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-10-23 19:58:45,667 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-10-23 19:58:45,667 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-10-23 19:58:45,667 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-10-23 19:58:45,668 INFO L138 SettingsManager]: * sizeof long double=12 [2020-10-23 19:58:45,668 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-10-23 19:58:45,669 INFO L138 SettingsManager]: * Use constant arrays=true [2020-10-23 19:58:45,669 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-10-23 19:58:45,669 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-10-23 19:58:45,670 INFO L138 SettingsManager]: * Size of a code block=SingleStatement [2020-10-23 19:58:45,670 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-10-23 19:58:45,670 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-10-23 19:58:45,670 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-10-23 19:58:45,670 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-10-23 19:58:45,670 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=AcceleratedInterpolation [2020-10-23 19:58:45,671 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-10-23 19:58:45,671 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2020-10-23 19:58:46,080 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-10-23 19:58:46,110 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-10-23 19:58:46,113 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-10-23 19:58:46,114 INFO L271 PluginConnector]: Initializing CDTParser... [2020-10-23 19:58:46,118 INFO L275 PluginConnector]: CDTParser initialized [2020-10-23 19:58:46,119 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/product-lines/minepump_spec4_product02.cil.c [2020-10-23 19:58:46,199 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59642ea77/642b9a2bea24447380f9c0ee4e316627/FLAGf30887f37 [2020-10-23 19:58:46,835 INFO L306 CDTParser]: Found 1 translation units. [2020-10-23 19:58:46,836 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/product-lines/minepump_spec4_product02.cil.c [2020-10-23 19:58:46,849 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59642ea77/642b9a2bea24447380f9c0ee4e316627/FLAGf30887f37 [2020-10-23 19:58:47,154 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/59642ea77/642b9a2bea24447380f9c0ee4e316627 [2020-10-23 19:58:47,157 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-10-23 19:58:47,165 INFO L131 ToolchainWalker]: Walking toolchain with 4 elements. [2020-10-23 19:58:47,172 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-10-23 19:58:47,172 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-10-23 19:58:47,176 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-10-23 19:58:47,177 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:58:47" (1/1) ... [2020-10-23 19:58:47,181 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@673a6309 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:47, skipping insertion in model container [2020-10-23 19:58:47,181 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 23.10 07:58:47" (1/1) ... [2020-10-23 19:58:47,191 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-10-23 19:58:47,262 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-10-23 19:58:47,533 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:58:47,551 INFO L203 MainTranslator]: Completed pre-run [2020-10-23 19:58:47,709 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-10-23 19:58:47,750 INFO L208 MainTranslator]: Completed translation [2020-10-23 19:58:47,751 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:47 WrapperNode [2020-10-23 19:58:47,751 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-10-23 19:58:47,752 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-10-23 19:58:47,752 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-10-23 19:58:47,752 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-10-23 19:58:47,767 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:47" (1/1) ... [2020-10-23 19:58:47,767 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:47" (1/1) ... [2020-10-23 19:58:47,806 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:47" (1/1) ... [2020-10-23 19:58:47,806 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:47" (1/1) ... [2020-10-23 19:58:47,859 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:47" (1/1) ... [2020-10-23 19:58:47,876 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:47" (1/1) ... [2020-10-23 19:58:47,885 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:47" (1/1) ... [2020-10-23 19:58:47,898 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-10-23 19:58:47,904 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-10-23 19:58:47,905 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-10-23 19:58:47,905 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-10-23 19:58:47,906 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:47" (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 19:58:47,993 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2020-10-23 19:58:47,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-10-23 19:58:47,994 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~int~X~int~TO~int [2020-10-23 19:58:47,994 INFO L138 BoogieDeclarations]: Found implementation of procedure reach_error [2020-10-23 19:58:47,994 INFO L138 BoogieDeclarations]: Found implementation of procedure __automaton_fail [2020-10-23 19:58:47,994 INFO L138 BoogieDeclarations]: Found implementation of procedure select_one [2020-10-23 19:58:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure select_features [2020-10-23 19:58:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure select_helpers [2020-10-23 19:58:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure valid_product [2020-10-23 19:58:47,995 INFO L138 BoogieDeclarations]: Found implementation of procedure timeShift [2020-10-23 19:58:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure processEnvironment [2020-10-23 19:58:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure activatePump [2020-10-23 19:58:47,996 INFO L138 BoogieDeclarations]: Found implementation of procedure deactivatePump [2020-10-23 19:58:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneAlarm [2020-10-23 19:58:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure isPumpRunning [2020-10-23 19:58:47,997 INFO L138 BoogieDeclarations]: Found implementation of procedure printPump [2020-10-23 19:58:47,998 INFO L138 BoogieDeclarations]: Found implementation of procedure startSystem [2020-10-23 19:58:47,998 INFO L138 BoogieDeclarations]: Found implementation of procedure test [2020-10-23 19:58:47,998 INFO L138 BoogieDeclarations]: Found implementation of procedure lowerWaterLevel [2020-10-23 19:58:47,999 INFO L138 BoogieDeclarations]: Found implementation of procedure waterRise [2020-10-23 19:58:47,999 INFO L138 BoogieDeclarations]: Found implementation of procedure changeMethaneLevel [2020-10-23 19:58:48,000 INFO L138 BoogieDeclarations]: Found implementation of procedure isMethaneLevelCritical [2020-10-23 19:58:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure printEnvironment [2020-10-23 19:58:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure getWaterLevel [2020-10-23 19:58:48,002 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac_acc__Specification4_spec__1 [2020-10-23 19:58:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_set [2020-10-23 19:58:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_free [2020-10-23 19:58:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__exception__cf_handler_reset [2020-10-23 19:58:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__error_stack_mgt [2020-10-23 19:58:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_arg [2020-10-23 19:58:48,003 INFO L138 BoogieDeclarations]: Found implementation of procedure __utac__get_this_argtype [2020-10-23 19:58:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure cleanup [2020-10-23 19:58:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure Specification2 [2020-10-23 19:58:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure setup [2020-10-23 19:58:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure runTest [2020-10-23 19:58:48,004 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2020-10-23 19:58:48,004 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2020-10-23 19:58:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure __assert_fail [2020-10-23 19:58:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure reach_error [2020-10-23 19:58:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-10-23 19:58:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2020-10-23 19:58:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure printf [2020-10-23 19:58:48,005 INFO L130 BoogieDeclarations]: Found specification of procedure __automaton_fail [2020-10-23 19:58:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure select_one [2020-10-23 19:58:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure select_features [2020-10-23 19:58:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure select_helpers [2020-10-23 19:58:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure valid_product [2020-10-23 19:58:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure lowerWaterLevel [2020-10-23 19:58:48,006 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneLevelCritical [2020-10-23 19:58:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure printEnvironment [2020-10-23 19:58:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure timeShift [2020-10-23 19:58:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure activatePump [2020-10-23 19:58:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure deactivatePump [2020-10-23 19:58:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure isPumpRunning [2020-10-23 19:58:48,007 INFO L130 BoogieDeclarations]: Found specification of procedure printPump [2020-10-23 19:58:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure startSystem [2020-10-23 19:58:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure __utac_acc__Specification4_spec__1 [2020-10-23 19:58:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure processEnvironment [2020-10-23 19:58:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure isMethaneAlarm [2020-10-23 19:58:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure waterRise [2020-10-23 19:58:48,008 INFO L130 BoogieDeclarations]: Found specification of procedure changeMethaneLevel [2020-10-23 19:58:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure cleanup [2020-10-23 19:58:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure test [2020-10-23 19:58:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure getWaterLevel [2020-10-23 19:58:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2020-10-23 19:58:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure free [2020-10-23 19:58:48,009 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_set [2020-10-23 19:58:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2020-10-23 19:58:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2020-10-23 19:58:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-10-23 19:58:48,010 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2020-10-23 19:58:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_free [2020-10-23 19:58:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-10-23 19:58:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__exception__cf_handler_reset [2020-10-23 19:58:48,011 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~int~X~int~TO~int [2020-10-23 19:58:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2020-10-23 19:58:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__error_stack_mgt [2020-10-23 19:58:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_arg [2020-10-23 19:58:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure __utac__get_this_argtype [2020-10-23 19:58:48,012 INFO L130 BoogieDeclarations]: Found specification of procedure Specification2 [2020-10-23 19:58:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure setup [2020-10-23 19:58:48,013 INFO L130 BoogieDeclarations]: Found specification of procedure runTest [2020-10-23 19:58:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure main [2020-10-23 19:58:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2020-10-23 19:58:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2020-10-23 19:58:48,014 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-10-23 19:58:49,212 INFO L293 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-10-23 19:58:49,212 INFO L298 CfgBuilder]: Removed 5 assume(true) statements. [2020-10-23 19:58:49,216 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:58:49 BoogieIcfgContainer [2020-10-23 19:58:49,217 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-10-23 19:58:49,221 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-10-23 19:58:49,221 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-10-23 19:58:49,224 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-10-23 19:58:49,224 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 23.10 07:58:47" (1/3) ... [2020-10-23 19:58:49,225 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbf2cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:58:49, skipping insertion in model container [2020-10-23 19:58:49,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 23.10 07:58:47" (2/3) ... [2020-10-23 19:58:49,226 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1dbf2cbd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 23.10 07:58:49, skipping insertion in model container [2020-10-23 19:58:49,226 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 23.10 07:58:49" (3/3) ... [2020-10-23 19:58:49,228 INFO L111 eAbstractionObserver]: Analyzing ICFG minepump_spec4_product02.cil.c [2020-10-23 19:58:49,240 INFO L164 ceAbstractionStarter]: Automizer settings: Hoare:true NWA Interpolation:AcceleratedInterpolation Determinization: PREDICATE_ABSTRACTION [2020-10-23 19:58:49,246 INFO L176 ceAbstractionStarter]: Appying trace abstraction to program that has 5 error locations. [2020-10-23 19:58:49,258 INFO L253 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2020-10-23 19:58:49,283 INFO L377 AbstractCegarLoop]: Interprodecural is true [2020-10-23 19:58:49,284 INFO L378 AbstractCegarLoop]: Hoare is true [2020-10-23 19:58:49,284 INFO L379 AbstractCegarLoop]: Compute interpolants for AcceleratedInterpolation [2020-10-23 19:58:49,284 INFO L380 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-10-23 19:58:49,284 INFO L381 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-10-23 19:58:49,284 INFO L382 AbstractCegarLoop]: Difference is false [2020-10-23 19:58:49,284 INFO L383 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-10-23 19:58:49,284 INFO L387 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-10-23 19:58:49,307 INFO L276 IsEmpty]: Start isEmpty. Operand 254 states. [2020-10-23 19:58:49,326 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 149 [2020-10-23 19:58:49,326 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:49,327 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 19:58:49,328 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 19:58:49,334 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:49,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1071861701, now seen corresponding path program 1 times [2020-10-23 19:58:49,344 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:49,345 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1220477278] [2020-10-23 19:58:49,345 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:49,435 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:49,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:50,203 WARN L193 SmtUtils]: Spent 400.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:50,206 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:50,223 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:50,318 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:50,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:50,325 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:50,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:50,331 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:50,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:50,337 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:50,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:50,344 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 125 [2020-10-23 19:58:50,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:50,358 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:58:50,360 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:50,426 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 19:58:50,428 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1220477278] [2020-10-23 19:58:50,430 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:50,431 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-10-23 19:58:50,431 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [671262194] [2020-10-23 19:58:50,437 INFO L461 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-10-23 19:58:50,437 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:50,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-10-23 19:58:50,452 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:58:50,454 INFO L87 Difference]: Start difference. First operand 254 states. Second operand 3 states. [2020-10-23 19:58:51,835 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:51,836 INFO L93 Difference]: Finished difference Result 362 states and 435 transitions. [2020-10-23 19:58:51,837 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-10-23 19:58:51,838 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 148 [2020-10-23 19:58:51,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:51,854 INFO L225 Difference]: With dead ends: 362 [2020-10-23 19:58:51,854 INFO L226 Difference]: Without dead ends: 238 [2020-10-23 19:58:51,859 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 16 GetRequests, 15 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-10-23 19:58:51,878 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2020-10-23 19:58:51,976 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 200. [2020-10-23 19:58:51,978 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 200 states. [2020-10-23 19:58:51,980 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 200 states to 200 states and 213 transitions. [2020-10-23 19:58:51,982 INFO L78 Accepts]: Start accepts. Automaton has 200 states and 213 transitions. Word has length 148 [2020-10-23 19:58:51,983 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:51,983 INFO L481 AbstractCegarLoop]: Abstraction has 200 states and 213 transitions. [2020-10-23 19:58:51,984 INFO L482 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-10-23 19:58:51,984 INFO L276 IsEmpty]: Start isEmpty. Operand 200 states and 213 transitions. [2020-10-23 19:58:51,988 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 150 [2020-10-23 19:58:51,988 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:51,989 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 19:58:51,989 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-10-23 19:58:51,989 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 19:58:51,990 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:51,990 INFO L82 PathProgramCache]: Analyzing trace with hash 372780071, now seen corresponding path program 1 times [2020-10-23 19:58:51,990 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:51,991 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1581525351] [2020-10-23 19:58:51,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:51,995 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:52,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:52,491 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:52,492 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:52,508 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:52,584 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:52,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:52,591 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:52,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:52,594 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:52,596 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:52,597 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:52,598 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:52,599 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 126 [2020-10-23 19:58:52,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:52,602 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:58:52,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:52,637 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 19:58:52,637 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1581525351] [2020-10-23 19:58:52,638 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:52,638 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-10-23 19:58:52,638 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [94656833] [2020-10-23 19:58:52,639 INFO L461 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-10-23 19:58:52,639 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:52,640 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-10-23 19:58:52,640 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-10-23 19:58:52,640 INFO L87 Difference]: Start difference. First operand 200 states and 213 transitions. Second operand 4 states. [2020-10-23 19:58:53,472 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:58:54,201 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:54,201 INFO L93 Difference]: Finished difference Result 272 states and 302 transitions. [2020-10-23 19:58:54,203 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-10-23 19:58:54,204 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 149 [2020-10-23 19:58:54,204 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:54,211 INFO L225 Difference]: With dead ends: 272 [2020-10-23 19:58:54,211 INFO L226 Difference]: Without dead ends: 221 [2020-10-23 19:58:54,213 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 18 GetRequests, 15 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 19:58:54,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 221 states. [2020-10-23 19:58:54,294 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 221 to 190. [2020-10-23 19:58:54,294 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-23 19:58:54,295 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 200 transitions. [2020-10-23 19:58:54,296 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 200 transitions. Word has length 149 [2020-10-23 19:58:54,296 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:54,297 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 200 transitions. [2020-10-23 19:58:54,297 INFO L482 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-10-23 19:58:54,297 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 200 transitions. [2020-10-23 19:58:54,305 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 163 [2020-10-23 19:58:54,306 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:54,306 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 19:58:54,306 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-10-23 19:58:54,306 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 19:58:54,307 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:54,307 INFO L82 PathProgramCache]: Analyzing trace with hash 1054630497, now seen corresponding path program 1 times [2020-10-23 19:58:54,307 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:54,308 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [461975820] [2020-10-23 19:58:54,308 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:54,311 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:54,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:54,806 WARN L193 SmtUtils]: Spent 340.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:54,811 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:54,870 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:54,871 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:54,873 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:54,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:54,874 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:54,883 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:54,929 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:54,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:54,944 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:58:54,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:54,967 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2020-10-23 19:58:54,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:54,969 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 149 [2020-10-23 19:58:54,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:55,011 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 19:58:55,013 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [461975820] [2020-10-23 19:58:55,013 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:55,013 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2020-10-23 19:58:55,013 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1236774659] [2020-10-23 19:58:55,015 INFO L461 AbstractCegarLoop]: Interpolant automaton has 10 states [2020-10-23 19:58:55,015 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:55,016 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2020-10-23 19:58:55,016 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=19, Invalid=71, Unknown=0, NotChecked=0, Total=90 [2020-10-23 19:58:55,017 INFO L87 Difference]: Start difference. First operand 190 states and 200 transitions. Second operand 10 states. [2020-10-23 19:58:55,688 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:58:56,144 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:58:56,546 WARN L193 SmtUtils]: Spent 371.00 ms on a formula simplification that was a NOOP. DAG size: 210 [2020-10-23 19:58:56,905 WARN L193 SmtUtils]: Spent 313.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:57,299 WARN L193 SmtUtils]: Spent 357.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:58:57,659 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:58:58,877 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:58:58,877 INFO L93 Difference]: Finished difference Result 318 states and 364 transitions. [2020-10-23 19:58:58,879 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2020-10-23 19:58:58,879 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 162 [2020-10-23 19:58:58,880 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:58:58,883 INFO L225 Difference]: With dead ends: 318 [2020-10-23 19:58:58,883 INFO L226 Difference]: Without dead ends: 243 [2020-10-23 19:58:58,884 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 34 GetRequests, 19 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 20 ImplicationChecksByTransitivity, 2.6s TimeCoverageRelationStatistics Valid=81, Invalid=191, Unknown=0, NotChecked=0, Total=272 [2020-10-23 19:58:58,885 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 243 states. [2020-10-23 19:58:58,953 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 243 to 190. [2020-10-23 19:58:58,953 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 190 states. [2020-10-23 19:58:58,968 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 190 states to 190 states and 199 transitions. [2020-10-23 19:58:58,969 INFO L78 Accepts]: Start accepts. Automaton has 190 states and 199 transitions. Word has length 162 [2020-10-23 19:58:58,970 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:58:58,970 INFO L481 AbstractCegarLoop]: Abstraction has 190 states and 199 transitions. [2020-10-23 19:58:58,970 INFO L482 AbstractCegarLoop]: Interpolant automaton has 10 states. [2020-10-23 19:58:58,970 INFO L276 IsEmpty]: Start isEmpty. Operand 190 states and 199 transitions. [2020-10-23 19:58:58,973 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2020-10-23 19:58:58,973 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:58:58,973 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] [2020-10-23 19:58:58,973 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-10-23 19:58:58,974 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 19:58:58,974 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:58:58,975 INFO L82 PathProgramCache]: Analyzing trace with hash 1055685442, now seen corresponding path program 1 times [2020-10-23 19:58:58,975 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:58:58,975 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [103173872] [2020-10-23 19:58:58,975 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:58:58,979 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:58:59,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,444 WARN L193 SmtUtils]: Spent 327.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:58:59,445 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:58:59,464 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,493 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:58:59,494 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,495 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:58:59,496 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,498 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:58:59,499 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,556 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:58:59,557 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,574 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:58:59,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,577 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 136 [2020-10-23 19:58:59,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,579 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 142 [2020-10-23 19:58:59,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,622 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 152 [2020-10-23 19:58:59,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:58:59,689 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 19:58:59,689 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [103173872] [2020-10-23 19:58:59,690 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:58:59,690 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [14] imperfect sequences [] total 14 [2020-10-23 19:58:59,690 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1263707154] [2020-10-23 19:58:59,691 INFO L461 AbstractCegarLoop]: Interpolant automaton has 14 states [2020-10-23 19:58:59,691 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:58:59,692 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 14 interpolants. [2020-10-23 19:58:59,693 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=155, Unknown=0, NotChecked=0, Total=182 [2020-10-23 19:58:59,694 INFO L87 Difference]: Start difference. First operand 190 states and 199 transitions. Second operand 14 states. [2020-10-23 19:59:00,422 WARN L193 SmtUtils]: Spent 311.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:00,902 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:01,294 WARN L193 SmtUtils]: Spent 362.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:59:01,697 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:02,064 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:02,457 WARN L193 SmtUtils]: Spent 349.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:03,339 WARN L193 SmtUtils]: Spent 328.00 ms on a formula simplification that was a NOOP. DAG size: 205 [2020-10-23 19:59:04,268 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:04,650 WARN L193 SmtUtils]: Spent 342.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:05,058 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:05,452 WARN L193 SmtUtils]: Spent 338.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:59:05,800 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:06,169 WARN L193 SmtUtils]: Spent 335.00 ms on a formula simplification that was a NOOP. DAG size: 207 [2020-10-23 19:59:06,533 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:06,895 WARN L193 SmtUtils]: Spent 332.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:07,279 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 209 [2020-10-23 19:59:07,718 WARN L193 SmtUtils]: Spent 330.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:08,145 WARN L193 SmtUtils]: Spent 345.00 ms on a formula simplification that was a NOOP. DAG size: 211 [2020-10-23 19:59:08,567 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification that was a NOOP. DAG size: 208 [2020-10-23 19:59:08,932 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification that was a NOOP. DAG size: 206 [2020-10-23 19:59:10,050 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:10,051 INFO L93 Difference]: Finished difference Result 481 states and 575 transitions. [2020-10-23 19:59:10,051 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 28 states. [2020-10-23 19:59:10,052 INFO L78 Accepts]: Start accepts. Automaton has 14 states. Word has length 165 [2020-10-23 19:59:10,052 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:10,056 INFO L225 Difference]: With dead ends: 481 [2020-10-23 19:59:10,056 INFO L226 Difference]: Without dead ends: 406 [2020-10-23 19:59:10,058 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 58 GetRequests, 24 SyntacticMatches, 0 SemanticMatches, 34 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 227 ImplicationChecksByTransitivity, 7.7s TimeCoverageRelationStatistics Valid=252, Invalid=1008, Unknown=0, NotChecked=0, Total=1260 [2020-10-23 19:59:10,059 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 406 states. [2020-10-23 19:59:10,199 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 406 to 312. [2020-10-23 19:59:10,199 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 312 states. [2020-10-23 19:59:10,201 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 312 states to 312 states and 340 transitions. [2020-10-23 19:59:10,202 INFO L78 Accepts]: Start accepts. Automaton has 312 states and 340 transitions. Word has length 165 [2020-10-23 19:59:10,202 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:10,203 INFO L481 AbstractCegarLoop]: Abstraction has 312 states and 340 transitions. [2020-10-23 19:59:10,203 INFO L482 AbstractCegarLoop]: Interpolant automaton has 14 states. [2020-10-23 19:59:10,203 INFO L276 IsEmpty]: Start isEmpty. Operand 312 states and 340 transitions. [2020-10-23 19:59:10,205 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 171 [2020-10-23 19:59:10,205 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:10,206 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-10-23 19:59:10,206 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-10-23 19:59:10,206 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 19:59:10,207 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:10,207 INFO L82 PathProgramCache]: Analyzing trace with hash 1304192425, now seen corresponding path program 1 times [2020-10-23 19:59:10,207 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:10,208 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1449550059] [2020-10-23 19:59:10,208 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:10,210 INFO L321 leratedInterpolation]: No loops in this trace, falling back to nested interpolation [2020-10-23 19:59:10,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:10,566 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification that was a NOOP. DAG size: 202 [2020-10-23 19:59:10,567 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 0 [2020-10-23 19:59:10,603 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:10,639 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 88 [2020-10-23 19:59:10,641 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:10,642 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 91 [2020-10-23 19:59:10,643 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:10,644 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 94 [2020-10-23 19:59:10,645 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:10,648 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 104 [2020-10-23 19:59:10,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:10,673 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 129 [2020-10-23 19:59:10,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:10,685 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 135 [2020-10-23 19:59:10,687 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:10,688 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 141 [2020-10-23 19:59:10,691 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:10,692 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 147 [2020-10-23 19:59:10,692 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:10,693 INFO L375 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 157 [2020-10-23 19:59:10,694 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-10-23 19:59:10,741 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 19:59:10,741 INFO L353 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModulePreferences [1449550059] [2020-10-23 19:59:10,742 INFO L219 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-10-23 19:59:10,742 INFO L232 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2020-10-23 19:59:10,742 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1144372137] [2020-10-23 19:59:10,742 INFO L461 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-10-23 19:59:10,743 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy FIXED_PREFERENCES [2020-10-23 19:59:10,746 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-10-23 19:59:10,747 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=11, Invalid=19, Unknown=0, NotChecked=0, Total=30 [2020-10-23 19:59:10,747 INFO L87 Difference]: Start difference. First operand 312 states and 340 transitions. Second operand 6 states. [2020-10-23 19:59:11,387 WARN L193 SmtUtils]: Spent 307.00 ms on a formula simplification that was a NOOP. DAG size: 204 [2020-10-23 19:59:12,326 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-10-23 19:59:12,326 INFO L93 Difference]: Finished difference Result 522 states and 606 transitions. [2020-10-23 19:59:12,327 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2020-10-23 19:59:12,327 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 170 [2020-10-23 19:59:12,328 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-10-23 19:59:12,331 INFO L225 Difference]: With dead ends: 522 [2020-10-23 19:59:12,331 INFO L226 Difference]: Without dead ends: 381 [2020-10-23 19:59:12,332 INFO L677 BasicCegarLoop]: 0 DeclaredPredicates, 30 GetRequests, 21 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 8 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=42, Invalid=68, Unknown=0, NotChecked=0, Total=110 [2020-10-23 19:59:12,333 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 381 states. [2020-10-23 19:59:12,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 381 to 294. [2020-10-23 19:59:12,458 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 294 states. [2020-10-23 19:59:12,460 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 294 states to 294 states and 311 transitions. [2020-10-23 19:59:12,461 INFO L78 Accepts]: Start accepts. Automaton has 294 states and 311 transitions. Word has length 170 [2020-10-23 19:59:12,461 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-10-23 19:59:12,461 INFO L481 AbstractCegarLoop]: Abstraction has 294 states and 311 transitions. [2020-10-23 19:59:12,461 INFO L482 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-10-23 19:59:12,461 INFO L276 IsEmpty]: Start isEmpty. Operand 294 states and 311 transitions. [2020-10-23 19:59:12,464 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 217 [2020-10-23 19:59:12,464 INFO L414 BasicCegarLoop]: Found error trace [2020-10-23 19:59:12,465 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 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 19:59:12,465 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-10-23 19:59:12,466 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 19:59:12,466 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-10-23 19:59:12,466 INFO L82 PathProgramCache]: Analyzing trace with hash -2082336230, now seen corresponding path program 1 times [2020-10-23 19:59:12,466 INFO L162 FreeRefinementEngine]: Executing refinement strategy FIXED_PREFERENCES [2020-10-23 19:59:12,467 INFO L353 FreeRefinementEngine]: Using trace check IpTcStrategyModulePreferences [1792679725] [2020-10-23 19:59:12,467 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-10-23 19:59:12,610 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:12,835 WARN L193 SmtUtils]: Spent 128.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:13,033 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:13,259 WARN L193 SmtUtils]: Spent 155.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 19:59:13,472 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:13,678 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:13,891 WARN L193 SmtUtils]: Spent 147.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 19:59:14,102 WARN L193 SmtUtils]: Spent 135.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:14,302 WARN L193 SmtUtils]: Spent 136.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:14,506 WARN L193 SmtUtils]: Spent 134.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:14,712 WARN L193 SmtUtils]: Spent 139.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:14,924 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 54 [2020-10-23 19:59:15,128 WARN L193 SmtUtils]: Spent 133.00 ms on a formula simplification. DAG size of input: 57 DAG size of output: 51 [2020-10-23 19:59:15,342 WARN L193 SmtUtils]: Spent 148.00 ms on a formula simplification. DAG size of input: 56 DAG size of output: 50 [2020-10-23 19:59:15,700 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 19:59:15,980 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 19:59:16,258 WARN L193 SmtUtils]: Spent 257.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 19:59:16,532 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 19:59:16,812 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 19:59:17,086 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 19:59:17,357 WARN L193 SmtUtils]: Spent 249.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 19:59:17,600 WARN L193 SmtUtils]: Spent 225.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 19:59:17,602 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:59:17,857 WARN L193 SmtUtils]: Spent 237.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 19:59:18,131 WARN L193 SmtUtils]: Spent 245.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 19:59:18,401 WARN L193 SmtUtils]: Spent 248.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 19:59:18,665 WARN L193 SmtUtils]: Spent 250.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 19:59:18,929 WARN L193 SmtUtils]: Spent 247.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 19:59:19,192 WARN L193 SmtUtils]: Spent 242.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 101 [2020-10-23 19:59:19,487 WARN L193 SmtUtils]: Spent 281.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 19:59:19,753 WARN L193 SmtUtils]: Spent 243.00 ms on a formula simplification. DAG size of input: 108 DAG size of output: 102 [2020-10-23 19:59:19,756 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:59:22,360 WARN L193 SmtUtils]: Spent 441.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 19:59:22,376 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:24,891 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 19:59:24,898 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:25,971 WARN L193 SmtUtils]: Spent 369.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 19:59:25,980 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:28,407 WARN L193 SmtUtils]: Spent 323.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 19:59:28,412 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:30,877 WARN L193 SmtUtils]: Spent 355.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 19:59:33,310 WARN L193 SmtUtils]: Spent 336.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 19:59:33,316 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:34,241 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 19:59:34,247 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:36,653 WARN L193 SmtUtils]: Spent 326.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 19:59:36,658 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:36,663 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:59:39,103 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 19:59:39,110 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:41,571 WARN L193 SmtUtils]: Spent 378.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 19:59:41,574 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:42,603 WARN L193 SmtUtils]: Spent 386.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 19:59:42,608 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:45,075 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 19:59:45,079 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:47,518 WARN L193 SmtUtils]: Spent 361.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 19:59:47,521 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:49,993 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 19:59:49,999 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:52,461 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 19:59:52,464 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:53,522 WARN L193 SmtUtils]: Spent 382.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 19:59:53,526 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 19:59:53,530 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 19:59:54,525 WARN L193 SmtUtils]: Spent 353.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 19:59:56,996 WARN L193 SmtUtils]: Spent 381.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 19:59:59,393 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 19:59:59,397 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:01,832 WARN L193 SmtUtils]: Spent 360.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:00:04,220 WARN L193 SmtUtils]: Spent 337.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:00:04,224 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:06,634 WARN L193 SmtUtils]: Spent 341.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 153 [2020-10-23 20:00:06,637 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:09,074 WARN L193 SmtUtils]: Spent 372.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:09,078 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:10,136 WARN L193 SmtUtils]: Spent 385.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 155 [2020-10-23 20:00:10,141 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:10,144 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:10,431 WARN L193 SmtUtils]: Spent 270.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:10,715 WARN L193 SmtUtils]: Spent 271.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:11,002 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:11,290 WARN L193 SmtUtils]: Spent 268.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:11,590 WARN L193 SmtUtils]: Spent 283.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:11,877 WARN L193 SmtUtils]: Spent 274.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:12,166 WARN L193 SmtUtils]: Spent 275.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:12,459 WARN L193 SmtUtils]: Spent 273.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:12,461 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:14,933 WARN L193 SmtUtils]: Spent 375.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:14,937 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:17,455 WARN L193 SmtUtils]: Spent 419.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:00:17,458 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:19,928 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:19,932 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:22,430 WARN L193 SmtUtils]: Spent 423.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:00:22,435 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:24,915 WARN L193 SmtUtils]: Spent 414.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:00:24,919 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:27,409 WARN L193 SmtUtils]: Spent 421.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:27,414 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:29,911 WARN L193 SmtUtils]: Spent 424.00 ms on a formula simplification. DAG size of input: 158 DAG size of output: 154 [2020-10-23 20:00:29,915 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:32,435 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 160 DAG size of output: 156 [2020-10-23 20:00:32,439 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:32,442 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:32,774 WARN L193 SmtUtils]: Spent 316.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:00:33,095 WARN L193 SmtUtils]: Spent 308.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:33,413 WARN L193 SmtUtils]: Spent 303.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:00:33,729 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:34,032 WARN L193 SmtUtils]: Spent 278.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:34,345 WARN L193 SmtUtils]: Spent 298.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:00:34,658 WARN L193 SmtUtils]: Spent 292.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:00:34,970 WARN L193 SmtUtils]: Spent 296.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 105 [2020-10-23 20:00:34,977 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:37,511 WARN L193 SmtUtils]: Spent 473.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 150 [2020-10-23 20:00:39,905 WARN L193 SmtUtils]: Spent 344.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:00:42,343 WARN L193 SmtUtils]: Spent 364.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:00:42,346 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:44,757 WARN L193 SmtUtils]: Spent 365.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:00:44,760 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:47,222 WARN L193 SmtUtils]: Spent 406.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:00:49,670 WARN L193 SmtUtils]: Spent 363.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:00:49,674 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:52,117 WARN L193 SmtUtils]: Spent 390.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:00:53,369 WARN L193 SmtUtils]: Spent 389.00 ms on a formula simplification. DAG size of input: 155 DAG size of output: 151 [2020-10-23 20:00:53,372 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:53,375 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:00:55,826 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2020-10-23 20:00:55,830 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:00:58,288 WARN L193 SmtUtils]: Spent 405.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2020-10-23 20:00:58,292 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:00,755 WARN L193 SmtUtils]: Spent 383.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2020-10-23 20:01:00,758 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:03,223 WARN L193 SmtUtils]: Spent 417.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:01:03,226 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:04,951 WARN L193 SmtUtils]: Spent 435.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:01:04,954 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:06,743 WARN L193 SmtUtils]: Spent 461.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:01:09,200 WARN L193 SmtUtils]: Spent 388.00 ms on a formula simplification. DAG size of input: 152 DAG size of output: 149 [2020-10-23 20:01:09,204 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:11,126 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 151 [2020-10-23 20:01:11,129 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:11,132 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:13,613 WARN L193 SmtUtils]: Spent 428.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:13,616 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:16,060 WARN L193 SmtUtils]: Spent 398.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:01:16,063 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:18,568 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:21,083 WARN L193 SmtUtils]: Spent 455.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 148 [2020-10-23 20:01:23,540 WARN L193 SmtUtils]: Spent 408.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 146 [2020-10-23 20:01:23,544 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:26,003 WARN L193 SmtUtils]: Spent 412.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:01:28,512 WARN L193 SmtUtils]: Spent 437.00 ms on a formula simplification. DAG size of input: 153 DAG size of output: 149 [2020-10-23 20:01:28,516 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:31,001 WARN L193 SmtUtils]: Spent 409.00 ms on a formula simplification. DAG size of input: 151 DAG size of output: 147 [2020-10-23 20:01:31,004 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:31,006 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:33,491 WARN L193 SmtUtils]: Spent 440.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:01:33,494 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:35,993 WARN L193 SmtUtils]: Spent 445.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:01:35,996 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:38,532 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:01:41,074 WARN L193 SmtUtils]: Spent 478.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:01:43,616 WARN L193 SmtUtils]: Spent 487.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:01:43,620 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:46,130 WARN L193 SmtUtils]: Spent 459.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:01:46,133 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:48,673 WARN L193 SmtUtils]: Spent 483.00 ms on a formula simplification. DAG size of input: 156 DAG size of output: 152 [2020-10-23 20:01:51,167 WARN L193 SmtUtils]: Spent 439.00 ms on a formula simplification. DAG size of input: 154 DAG size of output: 150 [2020-10-23 20:01:51,170 INFO L603 QuantifierPusher]: Distributing 2 conjuncts over 2 disjuncts [2020-10-23 20:01:51,173 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:51,511 WARN L193 SmtUtils]: Spent 329.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:51,842 WARN L193 SmtUtils]: Spent 318.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:52,176 WARN L193 SmtUtils]: Spent 317.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:52,508 WARN L193 SmtUtils]: Spent 319.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:52,847 WARN L193 SmtUtils]: Spent 320.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:53,184 WARN L193 SmtUtils]: Spent 324.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:53,510 WARN L193 SmtUtils]: Spent 304.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:53,841 WARN L193 SmtUtils]: Spent 315.00 ms on a formula simplification. DAG size of input: 110 DAG size of output: 105 [2020-10-23 20:01:53,843 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:54,164 WARN L193 SmtUtils]: Spent 301.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:54,489 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:54,810 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:01:55,135 WARN L193 SmtUtils]: Spent 312.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:01:55,447 WARN L193 SmtUtils]: Spent 302.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:55,773 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:56,076 WARN L193 SmtUtils]: Spent 289.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 101 [2020-10-23 20:01:56,397 WARN L193 SmtUtils]: Spent 309.00 ms on a formula simplification. DAG size of input: 109 DAG size of output: 102 [2020-10-23 20:01:56,400 INFO L309 leratedInterpolation]: Starting analysis with loop acceleration approximation UNDERAPPROXIMATION [2020-10-23 20:01:57,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:01:57,144 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:01:57,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2020-10-23 20:01:57,318 INFO L221 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2020-10-23 20:01:57,543 INFO L173 FreeRefinementEngine]: Strategy FIXED_PREFERENCES found a feasible trace [2020-10-23 20:01:57,543 INFO L523 BasicCegarLoop]: Counterexample might be feasible [2020-10-23 20:01:57,546 WARN L518 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-10-23 20:01:57,595 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 23.10 08:01:57 BoogieIcfgContainer [2020-10-23 20:01:57,595 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-10-23 20:01:57,597 INFO L168 Benchmark]: Toolchain (without parser) took 190436.36 ms. Allocated memory was 151.0 MB in the beginning and 412.1 MB in the end (delta: 261.1 MB). Free memory was 126.4 MB in the beginning and 286.4 MB in the end (delta: -160.0 MB). Peak memory consumption was 101.3 MB. Max. memory is 8.0 GB. [2020-10-23 20:01:57,602 INFO L168 Benchmark]: CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 127.0 MB. There was no memory consumed. Max. memory is 8.0 GB. [2020-10-23 20:01:57,603 INFO L168 Benchmark]: CACSL2BoogieTranslator took 579.20 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 106.0 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. [2020-10-23 20:01:57,609 INFO L168 Benchmark]: Boogie Preprocessor took 146.53 ms. Allocated memory is still 151.0 MB. Free memory was 106.0 MB in the beginning and 102.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. [2020-10-23 20:01:57,609 INFO L168 Benchmark]: RCFGBuilder took 1312.66 ms. Allocated memory is still 151.0 MB. Free memory was 102.0 MB in the beginning and 74.8 MB in the end (delta: 27.3 MB). Peak memory consumption was 46.6 MB. Max. memory is 8.0 GB. [2020-10-23 20:01:57,610 INFO L168 Benchmark]: TraceAbstraction took 188374.65 ms. Allocated memory was 151.0 MB in the beginning and 412.1 MB in the end (delta: 261.1 MB). Free memory was 74.8 MB in the beginning and 286.4 MB in the end (delta: -211.6 MB). Peak memory consumption was 48.4 MB. Max. memory is 8.0 GB. [2020-10-23 20:01:57,613 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.22 ms. Allocated memory is still 151.0 MB. Free memory is still 127.0 MB. There was no memory consumed. Max. memory is 8.0 GB. * CACSL2BoogieTranslator took 579.20 ms. Allocated memory is still 151.0 MB. Free memory was 125.7 MB in the beginning and 106.0 MB in the end (delta: 19.7 MB). Peak memory consumption was 19.9 MB. Max. memory is 8.0 GB. * Boogie Preprocessor took 146.53 ms. Allocated memory is still 151.0 MB. Free memory was 106.0 MB in the beginning and 102.3 MB in the end (delta: 3.7 MB). Peak memory consumption was 4.2 MB. Max. memory is 8.0 GB. * RCFGBuilder took 1312.66 ms. Allocated memory is still 151.0 MB. Free memory was 102.0 MB in the beginning and 74.8 MB in the end (delta: 27.3 MB). Peak memory consumption was 46.6 MB. Max. memory is 8.0 GB. * TraceAbstraction took 188374.65 ms. Allocated memory was 151.0 MB in the beginning and 412.1 MB in the end (delta: 261.1 MB). Free memory was 74.8 MB in the beginning and 286.4 MB in the end (delta: -211.6 MB). Peak memory consumption was 48.4 MB. Max. memory is 8.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - CounterExampleResult [Line: 3]: a call of __VERIFIER_error() is reachable a call of __VERIFIER_error() is reachable We found a FailurePath: [L98] int pumpRunning = 0; [L99] int systemActive = 1; [L285] int waterLevel = 1; [L286] int methaneLevelCritical = 0; [L560] static struct __ACC__ERR *head = (struct __ACC__ERR *)0; [L757] int cleanupTimeShifts = 4; [L830] int retValue_acc ; [L831] int tmp ; [L835] FCALL select_helpers() [L836] FCALL select_features() [L837] CALL, EXPR valid_product() [L80] int retValue_acc ; [L83] retValue_acc = 1 [L84] return (retValue_acc); [L837] RET, EXPR valid_product() [L837] tmp = valid_product() [L839] COND TRUE \read(tmp) [L841] FCALL setup() [L842] CALL runTest() [L824] CALL test() [L218] int splverifierCounter ; [L219] int tmp ; [L220] int tmp___0 ; [L221] int tmp___1 ; [L222] int tmp___2 ; [L225] splverifierCounter = 0 [L227] COND TRUE 1 [L229] COND TRUE splverifierCounter < 4 [L235] tmp = __VERIFIER_nondet_int() [L237] COND TRUE \read(tmp) [L239] CALL waterRise() [L303] COND TRUE waterLevel < 2 [L304] waterLevel = waterLevel + 1 [L239] RET waterRise() [L245] tmp___0 = __VERIFIER_nondet_int() [L247] COND FALSE !(\read(tmp___0)) [L255] tmp___2 = __VERIFIER_nondet_int() [L257] COND TRUE \read(tmp___2) [L259] CALL startSystem() [L209] systemActive = 1 [L259] RET startSystem() [L272] CALL timeShift() [L106] COND FALSE !(\read(pumpRunning)) [L113] COND TRUE \read(systemActive) [L115] FCALL processEnvironment() [L121] CALL __utac_acc__Specification4_spec__1() [L366] int tmp ; [L367] int tmp___0 ; [L371] CALL, EXPR getWaterLevel() [L356] int retValue_acc ; [L359] retValue_acc = waterLevel [L360] return (retValue_acc); [L371] RET, EXPR getWaterLevel() [L371] tmp = getWaterLevel() [L373] COND FALSE !(tmp == 0) [L121] RET __utac_acc__Specification4_spec__1() [L272] RET timeShift() [L227] COND TRUE 1 [L229] COND TRUE splverifierCounter < 4 [L235] tmp = __VERIFIER_nondet_int() [L237] COND TRUE \read(tmp) [L239] CALL waterRise() [L303] COND TRUE waterLevel < 2 [L304] waterLevel = waterLevel + 1 [L239] RET waterRise() [L245] tmp___0 = __VERIFIER_nondet_int() [L247] COND FALSE !(\read(tmp___0)) [L255] tmp___2 = __VERIFIER_nondet_int() [L257] COND TRUE \read(tmp___2) [L259] CALL startSystem() [L209] systemActive = 1 [L259] RET startSystem() [L272] CALL timeShift() [L106] COND FALSE !(\read(pumpRunning)) [L113] COND TRUE \read(systemActive) [L115] FCALL processEnvironment() [L121] CALL __utac_acc__Specification4_spec__1() [L366] int tmp ; [L367] int tmp___0 ; [L371] CALL, EXPR getWaterLevel() [L356] int retValue_acc ; [L359] retValue_acc = waterLevel [L360] return (retValue_acc); [L371] RET, EXPR getWaterLevel() [L371] tmp = getWaterLevel() [L373] COND TRUE tmp == 0 [L375] CALL, EXPR isPumpRunning() [L161] int retValue_acc ; [L164] retValue_acc = pumpRunning [L165] return (retValue_acc); [L375] RET, EXPR isPumpRunning() [L375] tmp___0 = isPumpRunning() [L377] COND TRUE \read(tmp___0) [L379] CALL __automaton_fail() [L46] CALL reach_error() [L3] __assert_fail("0", "minepump_spec4_product02.cil.c", 3, "reach_error") - StatisticsResult: Ultimate Automizer benchmark data CFG has 36 procedures, 589 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 188.2s, OverallIterations: 6, TraceHistogramMax: 2, AutomataDifference: 18.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 0.0s, HoareTripleCheckerStatistics: 913 SDtfs, 1402 SDslu, 1957 SDs, 0 SdLazy, 2671 SolverSat, 418 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 6.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 156 GetRequests, 94 SyntacticMatches, 0 SemanticMatches, 62 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 255 ImplicationChecksByTransitivity, 12.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=312occurred 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: 0.5s AutomataMinimizationTime, 5 MinimizatonAttempts, 303 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...